ctest series 5 1/2 Digit 2ch Digital Multimeter Board for PCI DMM-552-PCI User s Guide CONTEC CO.,LTD.

Transcription

1 ctest series 5 1/2 Digit 2ch Digital Multimeter Board for PCI DMM-552-PCI User s Guide CONTEC CO.,LTD.

2 Check Your Package Thank you for purchasing the CONTEC product. The product consists of the items listed below. Check, with the following list, that your package is complete. items, contact your retailer. If you discover damaged or missing Product Configuration List - Board [DMM-552-PCI] 1 - First step guide 1 - CD-ROM *1 [API-PAC(W32) ctest] 1 - Synchronization control cable (10cm) 1 *1 The CD-ROM contains the driver software and User s Guide (this guide) Board Synchronous control cable First step guide CD-ROM [API-PAC(W32) CTEST] DMM-552-PCI i

3 Copyright Copyright 2010 CONTEC CO., LTD. ALL RIGHTS RESERVED. No part of this document may be copied or reproduced in any form by any means without prior written consent of CONTEC CO., LTD. CONTEC CO., LTD. makes no commitment to update or keep current the information contained in this document. The information in this document is subject to change without notice. All relevant issues have been considered in the preparation of this document. Should you notice an omission or any questionable item in this document, please feel free to notify CONTEC CO., LTD. Regardless of the foregoing statement, CONTEC assumes no responsibility for any errors that may appear in this document or for results obtained by the user as a result of using this product. Trademarks Microsoft and Windows are trademarks of Microsoft Corporation. trademarks of their respective holder. Other brand and product names are ii DMM-552-PCI

4 Table of Contents Check Your Package...i Copyright...ii Trademarks...ii Table of Contents...iii 1. BEFORE USING THE PRODUCT 1 About the Product... 1 Features... 1 Support Software... 3 Cable & Connector (Option)... 4 Accessory (Separate sale)... 4 Customer Support... 5 Web Site... 5 Limited Three-Years Warranty... 5 How to Obtain Service... 5 Liability... 5 Safety Precautions... 6 Safety Information... 6 Handling Precautions... 6 Environment... 8 Inspection... 8 Storage... 8 Disposal SETUP 9 What is Setup?... 9 Using the Board under Windows Using the Driver Library API-PAC(W32) ctest... 9 Step 1 Installing the Software Starting the Install Program Step 2 Setting the Hardware Parts of the Board and Factory Defaults Setting the Board ID Plugging the Board Step 3 Installing the Hardware Turning on the PC When Using the API-DMM(WDM) Step 4 Checking and Changing the Initialization Setup Step 5 Checking Operations with the Front Panel Software What is the front panel software? DMM-552-PCI iii

5 Check Method...19 Operating the Front Panel Software...20 Setup Troubleshooting...22 Symptoms and Actions...22 If your problem cannot be resolved EXTERNAL CONNECTION 23 How to connect the connectors...23 Connector shape...23 Connector Pin Assignment...25 Connect to Measurement Object...27 Maximum Input Voltage of each Part...27 DC or AC Voltage Measurement...28 DC or AC Current Measurement...29 Resistance Measurement (Channel 1)...30 Digital I/O Signals, Control Signals Connection...31 Synchronization Control Connectors...33 SC Connectors...33 Connecting the SC Connectors (CN5, CN6) FUNCTIONS 36 5 Measurement Functions...36 DC or AC voltage measurement...36 DC or AC current measurement...37 Resistance measurement...38 Introduction of measurement procedure Initializing Setting measurement condition Starting/Stopping operation Monitoring status and Acquiring data Finishing...47 Digital input function...48 Digital output function ABOUT SOFTWARE 50 CD-ROM Directory Structure...50 About Software for Windows...51 When using the API-DMM(WDM)...52 Accessing the Help File...52 Using Sample Programs...53 Uninstalling the Driver Libraries...56 iv DMM-552-PCI

6 6. ABOUT HARDWARE 58 Hardware specification Measurement performance Block Diagram Timing for Control Signal Timing for Control Signal of Measurement function DMM-552-PCI v

7 vi DMM-552-PCI

8 1. Before Using the Product 1. Before Using the Product About the Product This product is a digital multi-meter board for PCI bus, which has 51/2 digits high precision, and has 2 channel simultaneous measurement function. It possesses five measurement functions that are direct current voltage / current measurement, alternating current voltage / current measurement, resistance measurement. Collect data from personal computer directly, which contribute to largely shortening of tact time, miniaturization of examination device, cost reduction. The maximum conversion speed is 1500SPS, so it is possible to continuously sampling by 2 channels at the same time. The precision, integral time, sampling interval can be set by software. The digital multi-meter of bench top type attaches to the application software [Front Panel Software]. It can be used as a Voltage/Current/Resistance measurement instrument. Windows API is also attached, so it is possible to program by Visual Basic and Visual C++. Features Miniaturization of examination device / Cost reduction The function of high precision digital multi-meter is realized by the expansion board of personal computer. Examination devices can be gathered into one personal computer, measurement instruments and expansion boards for communication are not necessary. Largely shortening of tact time because directly controlled by personal computer Compare with the system which use a measurement instrument and [ The essential time for collecting 10,000 data ] a personal computer, the transmission time from measurement instrument to personal computer and the communication processing are reduced. Directly collect from personal computer can be judged immediately, so the tack time for examining is largely shortened. 51/2 digits high precision, 2 channel simultaneous measurement function 24bit ΔΣ Model A/D Converter is used, it is possible to measure (direct current voltage / current, alternating current voltage / current, resistance (only channel 1)) by maximum 51/2 digits. It is insulated between 2 channels. Therefore, even if there is a potential difference between channels, it is possible to measure simultaneously for 2 channels. And, continuously sampling can be realized with the maximum conversion speed that is 1500SPS * 2 channels. DMM-552-PCI 1

9 1. Before Using the Product [Front Panel Software] is used as a digital multi-meter The digital multi-meter of bench top type attaches to the application software [Front Panel Software], which can be used as a Voltage/Current/Resistance measurement instrument. And, this application has the function of diagnosing and reporting the state of the board and device driver, so it can be used for make sure of the set up execution environment. The Function of Level Judgment Set a threshold level beforehand. Level can be judged without software. Load of CPU can be reduced. The types of threshold are OverRange, UnderRange, InRange, OutRange. The Synchronization Control Connector for Synchronization Movement In order to synchronization control maximum 16 boards, this board has a synchronization control connector. Therefore channels can be easily added only by adding boards. And, this board can work together with the others expansion board of our company which has a synchronization control connector. Such as analog I/O board, digital I/O board, counter board etc. Advanced real-time control can be performed without software. The Function of Auto Range The function of auto range is that select the most suitable range automatically according to the input signal size. Therefore, when the signal which s size can not be distinguished is input, a measurement can be performed without range setting. Select a Input Impedance from 10MΩ or more than 10GΩ In the case of direct current voltage, range is 10V or 1V or 100mV, the input impedance can be selected from 10MΩ or more than 10GΩ. If you want to reduce the noise influence, select 10MΩ. If you want to reduce the influence of signal source s output impedance, select more than 10GΩ. Therefore, the measurement can be performed according to the measurement environment. Software Trigger, Analog Edge Trigger, Hysteresis, Window Trigger, Digital Edge Trigger, Sampling Start / Stop condition of Event Control Output etc. The control of sampling start can be selected from software trigger, analog edge trigger, hysteresis, window trigger, digital edge trigger, event control output. The control of sampling stop can be selected from software trigger, sampling times stop. The control of sampling start and sampling stop is absolutely independent. It can be individually set. Use BNC Connector for Measurement Terminal Use BNC connector for measurement terminal. It is easy to connect to the device which has BNC connector. Windows compatible driver library API-PAC(W32) ctest is attached. Using the attached driver library makes it possible to create applications of Window. 2 DMM-552-PCI

10 1. Before Using the Product Support Software You should use CONTEC support software according to your purpose and development environment. Windows version of digitizer driver API-DMM(WDM) [Stored on the bundled CD-ROM driver library API-PAC(W32) ctest] The API-DMM(WDM) is the Windows version driver library software that provides products in the form of Win32 API functions (DLL). Various sample programs such as Visual Basic and Visual C++, etc is provided. Windows version of application software Front panel software [Stored on the bundled CD-ROM driver library API-PAC(W32) ctest] The front panel software is an application which can be used as a digital multi-meter of bench top type. It also has the function of diagnosing the state of the board and its driver. Moreover, you may use the Diagnosis Report feature reports the driver settings, the presence or absence of the board, I/O status, and interrupt status. Windows version of application software Configuration software [Stored on the bundled CD-ROM driver library API-PAC(W32) ctest] By configuration software, you may create a configuration file of acquisition conditions for this product in a wizard form. < Operating environment > OS Windows 7, Vista, XP, Server 2003, 2000 Adaptation language Visual Basic, Visual C++, Visual C# For more details on the supported OS, applicable language and how to download the updated version, please visit the CONTEC s Web site ( DMM-552-PCI 3

11 1. Before Using the Product Cable & Connector (Option) < For analog I/O > One Side BNC Medium Curly Clip : BNC-W60 (0.6m) BNC Cable : BNC-B100 (1m) : BNC-B200 (2m) : BNC-B300 (3m) <For digital I/O> 16-pin Post Header 15-pin D-SUB Bracket Cable (150mm) : DT-E3 16-pin Flat Cable (1.5m) : DT/E1 Shielded Cable with Connector on both sides for 15-pin D-SUB Connector : PCB15PS-0.5P (0.5m)*1*2 Shielded Cable with Connector on both sides for 15-pin D-SUB Connector : PCB15PS-1.5P (1.5m)*1*2 15-pin D-SUB 15-pin Flat Cable : PCA15P-1.5 (1.5m)*1 Flat Cable with Connector on both sides for 15-pin D-SUB Connector : PCB15P-1.5 (1.5m)*1*2 *1 DT-E3 is necessary. *2 FTP-15 is necessary only in using. Accessory (Separate sale) Screw-type Terminal (M3 Screw, 15 Points) : FTP-15 *1 *1 Cable DT-E3 and PCB15P-1.5 are necessary separately. * Check the CONTEC s Web site for more information on these options. 4 DMM-552-PCI

12 1. Before Using the Product Customer Support CONTEC provides the following support services for you to use CONTEC products more efficiently and comfortably. Web Site Japanese English Chinese Latest product information CONTEC provides up-to-date information on products. CONTEC also provides product manuals and various technical documents in the PDF. Free download You can download updated driver software and differential files as well as sample programs available in several languages. Note! For product information Contact your retailer if you have any technical question about a CONTEC product or need its price, delivery time, or estimate information. Limited Three-Years Warranty CONTEC products are warranted by CONTEC CO., LTD. to be free from defects in material and workmanship for up to three years from the date of purchase by the original purchaser. Repair will be free of charge only when this device is returned freight prepaid with a copy of the original invoice and a Return Merchandise Authorization to the distributor or the CONTEC group office, from which it was purchased. This warranty is not applicable for scratches or normal wear, but only for the electronic circuitry and original products. The warranty is not applicable if the device has been tampered with or damaged through abuse, mistreatment, neglect, or unreasonable use, or if the original invoice is not included, in which case repairs will be considered beyond the warranty policy. How to Obtain Service For replacement or repair, return the device freight prepaid, with a copy of the original invoice. Please obtain a Return Merchandise Authorization number (RMA) from the CONTEC group office where you purchased before returning any product. * No product will be accepted by CONTEC group without the RMA number. Liability The obligation of the warrantor is solely to repair or replace the product. In no event will the warrantor be liable for any incidental or consequential damages due to such defect or consequences that arise from inexperienced usage, misuse, or malfunction of this device. DMM-552-PCI 5

13 1. Before Using the Product Safety Precautions Understand the following definitions and precautions to use the product safely. Safety Information This document provides safety information using the following symbols to prevent accidents resulting in injury or death and the destruction of equipment and resources. Understand the meanings of these labels to operate the equipment safely. DANGER WARNING CAUTION DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury or in property damage. Handling Precautions DANGER Do not use the product where it is exposed to flammable or corrosive gas. an explosion, fire, electric shock, or failure. Doing so may result in CAUTION - There are switches and jumpers on this product that need to be set in advance. Be sure to check these before installing this product. - Only set the switches and jumpers on this product to the specified settings. Otherwise, this product may malfunction, overheat, or cause a failure. - Do not strike or bend this product. Otherwise, this product may malfunction, overheat, cause a failure or breakage. - Do not touch this product's metal plated terminals (edge connector) with your hands. Otherwise, this product may malfunction, overheat, or cause a failure. If the terminals are touched by someone's hands, clean the terminals with industrial alcohol. - As this product contains components that are designed to operate at high temperature, please do not touch this product when it is in use. If the current measurement function has been used for a particularly long time, there is the case that the part of BNC connector becomes a high temperature. - Do not touch the external connector (BNC connector) when the power is on. Otherwise this may malfunction, cause a failure due to static electricity. - Do not install this product to the expansion slot and do not plug or unplug the cables which are connected to this product while the PC or expansion chassis is still turned on. Otherwise, this product may malfunction, overheat, or cause a failure. Be sure that the personal computer power is turned off. 6 DMM-552-PCI

14 1. Before Using the Product - Make sure that your PC or expansion unit can supply ample power to all the products installed. Insufficiently energized products could malfunction, overheat, or cause a failure. - In the board there is a part with the possibility that the high voltage is applied to. Make sure that the board does not approach and does not come into contact with an inside cable of personal computer or others board. False action of others board or personal computer will be the reason of malfunction. - The specifications of this product are subject to change without notice for enhancement and quality improvement. Even when using the product continuously, be sure to read the manual and understand the contents. - Do not modify the product. CONTEC will bear no responsibility for any problems, etc., resulting from modifying this product. - Regardless of the foregoing statements, CONTEC is not liable for any damages whatsoever (including damages for loss of business profits) arising out of the use or inability to use this CONTEC product or the information contained herein. - The conformity condition of static electricity examination is as follows. Contact +/- 4.0kV DMM-552-PCI 7

15 1. Before Using the Product Environment Use this product in the following environment. may overheat, malfunction, or cause a failure. If used in an unauthorized environment, the product Operating temperature 0-50 C Operating humidity 10-90%RH (No condensation) Corrosive gases None Floating dust particles Not to be excessive Inspection Inspect the product periodically as follows to use it safely. - Check that the bus connector of the board and its cable have been plugged correctly. - Check that the board has no dust or foreign matter adhering. - The gold-plated leads of the bus connector have no stain or corrosion. Storage When storing this product, keep it in its original packing form. (1) Put this product in the storage bag. (2) Wrap it in the packing material, then put it in the box. (3) Store the package at room temperature at a place free from direct sunlight, moisture, shock, vibration, magnetism, and static electricity. Disposal When disposing of the product, follow the disposal procedures stipulated under the relevant laws and municipal ordinances. 8 DMM-552-PCI

16 2. Setup 2. Setup This chapter explains how to set up the board. What is Setup? Setup means a series of steps to take before the product can be used. Different steps are required for software and hardware. The setup procedure varies with the OS and applications used. Using the Board under Windows Using the Driver Library API-PAC(W32) ctest This section describes the setup procedure to be performed before you can start developing application programs for the board using the bundled CD-ROM Driver Library API-PAC(W32) ctest. Taking the following steps sets up the software and hardware. You can use the front panel software later to check whether the software and hardware function normally. Step 1 Installing the Software Step 2 Setting the Hardware Step 3 Installing the Hardware Step 4 Checking and Changing the Initialization Setup Step 5 Checking Operations with the front panel software If Setup fails to be performed normally, see the Setup Troubleshooting section at the end of this chapter. DMM-552-PCI 9

17 2. Setup Step 1 Installing the Software This section describes how to install the API function libraries. Before installing the hardware on your PC, install the Driver libraries from the bundled API-PAC(W32) ctest CD-ROM. The following description assumes the operating system as Windows XP. Although some user interfaces are different depending on the OS used, the basic procedure is the same. Starting the Install Program (1) Load the CD-ROM [API-PAC(W32) ctest] on your PC. (2) The API-PAC(W32) ctest Installer window appears automatically. If the panel does not appear, run (CD-ROM drive letter):\autorun.exe. (3) Click on the [Install Development or Execution Environment] button. CAUTION Before installing the software in Windows 7, Vista, XP, Server 2003, or 2000, log in as a user with administrator privileges. 10 DMM-552-PCI

18 2. Setup Select API-DMM(WDM) (1) The following dialog box appears to select Driver to install and Install option, Usage of driver library. (2) Select the "Digital Multi-meter Driver". (3) Click on the [Install] button. Run the installation (1) Complete the installation by following the instructions on the screen. (2) The Readme file appears when the installation is complete. You have now finished installing the software. DMM-552-PCI 11

19 2. Setup Step 2 Setting the Hardware This section describes how to set this product and plug it on your PC. This product has some switches to be preset. Check the on-board switches before plugging this product into an expansion slot. This product can be set up even with the factory defaults untouched. You can change board settings later. Parts of the Board and Factory Defaults Figure 2.1. shows the names of major parts on the board. Note that the switches and jumpers setting shown below is the factory default. Figure 2.1. Part Names 12 DMM-552-PCI

20 2. Setup Setting the Board ID If you install two or more boards on one personal computer, assign a different ID value to each of the boards to distinguish them. The board IDs can be set from 0 - Fh to identify up to sixteen boards. If only one board is used, the original factory setting (Board ID = 0) should be used. Setting Procedure To set the board ID, use the rotary switch on the board. shown below. Turn the SW1 knob to set the board ID as BOARD ID 8 9AB CDEF SW Factory setting : (Board ID = 0) Figure 2.2. Board ID Settings (SW1) DMM-552-PCI 13

21 2. Setup Plugging the Board (1) Before plugging the board, shut down the system, unplug the power code of your PC. (2) Remove the cover from the PC so that the board can be mounted. (3) Plug the board into an expansion slot. (4) Attach the board bracket to the PC with a screw. (5) Put the cover back into place. Applicable PCI bus slots PCI bus slots used in PCs have keys to prevent 5V and 3.3V PCI bus boards from being accidentally plugged into wrong bus slots. This board can be plugged into both of the 5V and 3.3V PCI bus slots. <PCI bus slot> <PCI bus board> 5-V PCI bus slot 3.3-V PCI bus slot 5V key 3.3V key B A : Slit for 5-V PCI bus slot B : Slit for 3.3-V PCI bus slot CAUTION - Do not touch the board's metal plated terminals (edge connector) with your hands. Otherwise, the board may malfunction, overheat, or cause a failure. If the terminals are touched by someone's hands, clean the terminals with industrial alcohol. - Do not install or remove the board to or from the slot while the computer's power is turned on. Otherwise, the board may malfunction, overheat, or cause a failure. Doing so could cause trouble. Be sure that the personal computer or the I/O expansion unit power is turned off. - Make sure that your PC or expansion unit can supply ample power to all the boards installed. Insufficiently energized boards could malfunction, overheat, or cause a failure. - In the board there is a part with the possibility that the high voltage is applied to. Make sure that the board does not approach and does not come into contact with an inside cable of personal computer or others board. False action of others board or personal computer will be the reason of malfunction. A 14 DMM-552-PCI

22 2. Setup - Power supply from the PCI bus slot at +5V is required. If +5V is not supplied from the PCI bus slot, board is not recognized from PC ( Found New Hardware Wizard in the next page is not displayed.). In this case, change the expansion slot to be attached or PC to be installed. DMM-552-PCI 15

23 2. Setup Step 3 Installing the Hardware For using an expansion board under Windows, you have to let the OS detect the I/O addresses and IRQ to be used by the board. The process is referred to as installing the hardware. Turning on the PC Turn on the power to your PC. CAUTION - The board cannot be properly installed unless the resources (I/O addresses and interrupt level) for the board can be allocated. Before attempting to install the board, first determine what PC resources are free to use. - The resources used by each board do not depend on the location of the PCI bus slot or the board itself. If you remove two or more boards that have already been installed and then remount one of them on the computer, it is unknown that which one of the sets of resources previously assigned to the two boards is assigned to the remounted board. In this case, you must check the resource settings. When Using the API-DMM(WDM) (1) When the "Found New Hardware Wizard" opens, select "Install the software automatically [Recommended]" and then click the "Next" button. * The wizard may not appear for some OS versions and instead the installation will start automatically. In this case, proceed to the software initial setup step. DMM DMM-552-PCI You have now finished installing the hardware. 16 DMM-552-PCI

24 2. Setup Step 4 Checking and Changing the Initialization Setup Check and change the device name to recognize the device on the driver library. Checking the device name (1) Run Device Manager. From [My Computer] - [Control Panel], select [System] and then select the [Device Manager] tab. (You can also open Device Manager by right clicking on My Computer and selecting Properties.) * The name of the board you have just added is displayed. - DMM-552-PCI (2) Hardware that was installed is registered under the CONTEC Devices tree. When you open the devices tree, hardware name that was installed is displayed. The character string of DMM000 displayed in the right side of hardware name is the device name. This device name will be required if programming later. * As the device name is automatically allocated, you can use this name if you wish. DMM-552-PCI 17

25 2. Setup Changing the device name (1) Double click the device on the device manager to display the property page of device. Enter the device name in the common settings tab page and then click [OK]. * Make sure that you do not use the same name for more than one device. You have now finished installing the initial setting of Software. 18 DMM-552-PCI

26 2. Setup Step 5 Checking Operations with the Front Panel Software Use the front panel software to check that the board and driver software work normally, thereby you can confirm that they have been set up correctly. What is the front panel software? The front panel software is an application which can be used as a digital multi-meter, it also has the function of diagnosing the state of the board and its driver. Using the Diagnosis Report feature reports the driver settings, the presence or absence of the board, I/O status, and interrupt status. Check Method Connect an external signal source to check the analog input data. The figure is an example for inputting signal from the voltage measurement connector of channel 0 (CH0_V). For details on the connections, see Chapter 3 External Connection. CAUTION Input data remains indeterminate when no input pin is connected. For details, see Chapter 3 External Connection. DMM-552-PCI 19

27 2. Setup Operating the Front Panel Software Starting the front panel software Click the [Front Panel] button on the device property page to start the front panel. Select a function, click [Run] button, the acquisition of data is started. For more details on the using method of front panel software, refer to the API-DIG(WDM) HELP. 20 DMM-552-PCI

28 2. Setup Diagnosis Report (1) The diagnosis report saves detailed data, including the device settings and settings for each channel, to a text file and displays the file for you to view. Click [Diagnosis Report] and then specify the folder to save the diagnosis report (text file). (2) The diagnosis report contains the following data. - Version of OS - Device Information (Device Name, Device description) - File Information (file version, time stamp) - Initialization, interrupts, current input or output state for each channel DMM-552-PCI 21

29 2. Setup Setup Troubleshooting Symptoms and Actions If Data cannot be Normally Input or Output - Run the front panel software, and then make sure whether the device is registered, whether there is init error or not. - Is there any problem of device settings or wiring method? Make sure whether the measurement function of used channel and the used connector are correctly combined. If the wirings are not connected, the input data is uncertainty. If the channel is not to be used, do not connect anything to the channel. - Measurement function, input range, integral time, sampling clock etc. can be checked by software s settings. - If not proper signal source, at the DC voltage measurement function, connect the terminal of DC voltage measurement (CHx_V) to the battery. Short-circuit the short plug of BNC etc. When the battery is connected, if short plug of BNC is connected, make sure that the voltage of battery should be input 0V. And, at the others measurement function, the short plug and battery cannot be measurement correctly. If the front panel software works normally, and the application made by user does not work normally The front panel software is made by using the functions of API-DMM(WDM). If the front panel software works normally, the install driver and the recognition by Device Manager are finished normally. In this case, the following points should be noticed. And review and correct your program. - Check the return values of the API functions. - Refer to the source code for the sample programs. The OS won t normally get started or detect the device. Refer to the "Troubleshooting" section of API-DMM(WDM) HELP. If your problem cannot be resolved Contact your retailer. 22 DMM-552-PCI

30 3. External Connection 3. External Connection This chapter describes the interface connectors on the product and the external I/O circuits. Check the information available here when connecting an external device. How to connect the connectors Connector shape To connect an external device to this product, plug the cable from the device into the interface connector (CH0_V, CH0_I, CH1_V, CH1_I, CN7) shown below. Interface connector are Measurement Connector (CH0_V, CH0_I, CH1_V, CH1_I), Digital I/O Control Connector (CN7). * Please refer to chapter 1 for more information on the supported cable and accessories. Figure 3.1. Interface Connector Shape * Please refer to chapter 1 for more information on the supported cable and accessories. DMM-552-PCI 23

31 3. External Connection Figure 3.2. Examples of Connecting Options 24 DMM-552-PCI

32 3. External Connection Connector Pin Assignment Signal Assignment of Measurement Connector (CH0_V, CH0_I, CH1_V, CH1_I) Voltage Input 0 Voltage Input 1 / 2Wire Resistance Current Input 0-1 COM 0-1 HIGN side of voltage measurement terminal. The numbers correspond to channel numbers. HIGN side of voltage measurement terminal. HIGN side of 2 terminal method resistance measurement terminals. The numbers correspond to channel numbers. HIGN side of current measurement terminal. The numbers correspond to channel numbers. LOW side of voltage, current, resistance measurement terminal. The numbers correspond to channel numbers. In the case of voltage and resistance measurement, use the COM x terminal of CHx_V. In the case of current measurement, use the COM x terminal of CHx_I. (x is channel number) Figure 3.3. Signal Assignment of Measurement Connector (CH0_V, CH0_I, CH1_V, CH1_I) CAUTION - In the case of voltage and resistance measurement, you must use the COM x terminal of CHx_V (x is channel number). If you use the terminals of others COM x side, the measurement precision may be influenced. - In the case of current measurement, you must use the COM x terminal of CHx_I (x is channel number). If you use the terminals of others COM x side, it can result in a fault. DMM-552-PCI 25

33 3. External Connection Signal Assignment of Digital I/O and Control Connector (CN7) CN7 B08 N.C. A08 Reserved B07 Digital Ground A07 AI Status Output B06 External Sampling Clock Input A06 Reserved B05 External Start Trigger Input A05 Digital Input 3 B04 Digital Input 2 A04 Digital Input 1 B03 Digital Input 0 A03 Digital Ground B02 Digital Output 3 A02 Digital Output 2 B01 Digital Output 1 A01 Digital Output 0 Digital Input 0 - Digital Input 3 Digital Out 0 - Digital Output 3 External Start Trigger Input External Sampling Clock Input AI Status Output Digital Ground Reserved N.C. Digital input signals Digital output signals External trigger input signal for starting sampling External sampling clock input signal Output the status signal Common digital ground for each signal Reserved pin No connection to this pin Figure 3.4. Signal Assignment of Digital I/O and Control Connector (CN7) CAUTION - Do not connect any of the outputs to the digital ground. Neither connect outputs to each other. It can result in a fault. - Digital terminals are non-insulated. The digital ground is being connected to the ground of personal computer. Figure 3.5. Option Cable DT-E3 Digital Output Digital Output 1 Digital Output Digital Output 3 Digital Ground 3 11 Digital Input 0 Digital Input Digital Input 2 Digital Input 3 5 External Start Trigger 13 Input Reserved 6 External Sampling 14 Clock Input AI Status Output 7 15 Digital Ground Reserved 8 Figure 3.6. Signal Assignment of Connector 15-pin D-SUB Option Cable 26 DMM-552-PCI

34 3. External Connection Connect to Measurement Object Maximum Input Voltage of each Part It is insulated between this product s terminals of COM 0 - COM 1, COM 0 - Digital Ground, COM 1 - Digital Ground. Applied voltage should not exceed the maximum input voltage of each part. Shield cover/bracket One channel CH1_V Digital I/O part Control circuit COM 1 0 channels 1 CH1_I CH0_V ±350Vpeak (DCV, When resistance is set) 310Vrms, 450Vpeak (When AC voltage is set) ±300Vpeak Digital Ground COM 0 CH0_I ±350Vpeak (DCV, When resistance is 310Vrms, 450Vpeak (When AC voltage is set) 0 GND of personal computer ±300Vpeak ±300Vpeak Case of personal computer Vrms: Effective value of voltage FG Figure 3.7. The Maximum Input Voltage of each Part CAUTION - The voltage applied to the measurement terminal should not exceed the maximum input voltage which bases on the potential of this board s COM x terminal (x is channel number). If it exceeds the maximum voltage, the board may be damaged. - The potential of signal which is connected to this board s COM x terminal (x is channel number) should not exceed the maximum input voltage which bases on the ground potential of the used personal computer. If it exceeds the maximum voltage, the board may be damaged. - If the power of this board is off, do not input signal to the measurement terminals (CHx_V, CHx_I (x is channel number)). Otherwise, it can result in a fault. In this state, if signal is input, insert relay etc. between the terminals and signals to separate the signal line. - FG (shield cover / bracket) of this product is connected to the ground of personal computer. DMM-552-PCI 27

35 3. External Connection DC or AC Voltage Measurement The following figure shows an example of shield cable connection. Connect BNC connector of CH0_V / CH1_V for each measurement channel respectively, the wick line to the plus side and the shield braid to the minus side. Figure 3.8. Connection of DC or AC Voltage Measurement (shielded cable) CAUTION - If the COM terminal side connected to the measurement object is not ground potential, do not touch the measurement terminals (BNC connector) with your hands. Otherwise, there is danger of a shock. - When the board s measurement terminals (BNC connector) are input signals to, do not touch the measurement terminals with your hands. Otherwise, there is danger of a shock. CAUTION - If this board and the measurement object receive noise or the distance between this board and the measurement object is too long, measurement may not be performed properly. - In the case of voltage measurement, do not connect the current input connector (CH0_I, CH1_I) of used channels to anything. Otherwise, the board may malfunction, overheat, or cause a failure. - When DC voltage measurement and the range is less than 10V, if the voltage more than 15V is input, the over-voltage protection circuit is activated. In order to reduce the input impedance to 100 kω degree, increase the current flowing to the measurement terminals. - If the input voltage exceeds the maximum input voltage, the over-voltage protection circuit is activated, large current may be flowed to the measurement terminals. And, in the case of exceeding the maximum input voltage, there is a damage which does not reach the wide area of over-voltage, so the activated over-voltage protection circuit can not prevent from the damage of this board itself. When the activated state of protection circuit is continuous, even if there is not a problem in the measurement function, you should repair it for security. - Just after the personal computer starts up (several seconds after the power is on), do not supply voltage. - Just after the personal computer starts up (several seconds after the power is on), the input impedance is over 10GΩ. - Just after the personal computer starts up (several seconds after the power is on), the range setting etc. is uncertainty. 28 DMM-552-PCI

36 3. External Connection DC or AC Current Measurement The following figure shows an example of shield cable connection. Connect BNC connector of CH0_I / CH1_I for each measurement channel respectively, the wick line to the plus side and the shield braid to the minus side. Figure 3.9. Connection of DC or AC Current Measurement (shielded cable) CAUTION - If the COM terminal side connected to the measurement object is not ground potential, do not touch the measurement terminals (BNC connector) with your hands. Otherwise, there is danger of a shock. - When the board s measurement terminals (BNC connector) are input signals to, do not touch the measurement terminals with your hands. Otherwise, there is danger of a shock. - Make sure that the measurement object device does not exceed the rated voltage (125V) of fuse. In the case of over-current, the fuse will melt down, overheat, firing. - There is the case that the contact resistance of BNC connector becomes larger. When using, you must make sure whether the BNC connector is connected properly and whether the connector is abnormally heat or not. CAUTION - If this board and the measurement object receive noise or the distance between this board and the measurement object is too long, measurement may not be performed properly. - In the case of current measurement, do not connect the voltage input connector (CH0_V, CH1_V) of used channels to anything. Otherwise, the board may malfunction, overheat, or cause a failure. - If the input current exceeds the maximum input current, the inner fuse will melt down and the measurement terminal will be open. - In the case of current measurement, the measuring current flows in resistance, the current value is gotten by measuring the voltage of the both sides. If the current flow, which exceeds measurement range largely, the over-voltage protection circuit is activated. At this time, lower the resistance value so that the measuring voltage value does not rise. Originally, even if in this case, the current measurement doesn t change the current value. But, if the output signal source which s voltage is stationary, the resistance is lowered then the current rises. If the signal source cannot drive that current, the signal source may break down. - Just after the personal computer starts up (several seconds after the power is on), the range setting etc. is uncertainty. DMM-552-PCI 29

37 3. External Connection Resistance Measurement (Channel 1) The following figure shows an example of shield cable connection. Connect BNC connector of CH1_V for measurement channel to resistance. The measurement current (Test current) flows from wick line side to the shield braid side. Figure Connection of Resistance Measurement (shielded cable) CAUTION - If this board and the measurement object receive noise or the distance between this board and the measurement object is too long, measurement may not be performed properly. - In the case of resistance measurement, do not connect the current input connector (CH1_I) of used channels to anything. Otherwise, the board may malfunction, overheat, or cause a failure. - If perform the resistance measurement with being inserted a relay etc, short-circuit the measurement terminals. Just after the short circuit, there is a maximum 15V voltage between the measurement terminals (CH1_V terminal to COM terminal). If the resist pressure of measurement object is low, the measurement object may be damaged. - Just after the personal computer starts up (several seconds after the power is on), the range setting etc. is uncertainty. 30 DMM-552-PCI

38 3. External Connection Digital I/O Signals, Control Signals Connection The following sections show examples of how to connect digital I/O signals, control signals (external trigger input signals, sampling clock input signals, etc.) with flat cables. Connect CN7 to an external device with a separate sale flat cable (DT/E1), 15-pin D-SUB bracket cable (DT-E3). When the device is on the status of working, output the synchronized pulse (pulse width is about 10µsec) to the External Status Output Signal (AI Status Output terminal) with the internal sampling clock. But, if the sampling clock setting is set to be External Sampling Clock Input, then it is [OFF]. Digital input signals, control input signals are TTL level signals. Digital output signals, external status output signals are open collector output. Figure Digital Input Connection Figure Digital Output Connection (TTL Level Input) If the signal line isn t pulled up at the connect position of digital output signal, it is necessary to connect a pull-up resistance in the outside. Figure Digital Output Connection (Photo-coupler Input) CAUTION - Each input can be input to 5V TTL signal. - When the PC is turned on, all the output are reset to OFF. DMM-552-PCI 31

39 3. External Connection Reference For the operation timing of control signal input, see Chapter 6 Hardware Operation Timing of Control Signals. 32 DMM-552-PCI

40 3. External Connection Synchronization Control Connectors SC Connectors Controlling simultaneous operations between boards or controlling in sync with events is in part dependent on software performance. In order to enhance the reliability of the entire system and to solve these problems, the board is equipped with SC (Synchronization Control) connectors (CN5, CN6). Connecting the SC connectors allows boards of the same or different models to operate in sync with one another. From the boards connected with the SC cable, select one master board and use others as slaves. On the master board, set the signal to be supplied to the slave boards with the software. On the slave boards, the signal from the master board can be set to either the pacer clock operation start or stop factor. All board operations can also be stopped with a stop request from the master in case of an error, for example, or when requested from a slave board. A maximum of 16 boards can be connected including the master. For more information on the setup procedure, see the driver software online help. Example 1: When sampling clock start and stop requirements are set the same for multiple boards In order to synchronize master sampling clock start and stop with slave boards you can build a synchronous system which does not depend on software processing capabilities. If the board model is the same, data remains synchronized among boards even when channels are expanded. When board models are different, data still remains compatible since sampling clock start and stop are dependent on the master. (1) Connect the SC cable. (2) Designate master/slave with the software. (3) Assign to the connectors the sampling clock start and stop signals to be output from the master. (4) Set up slave boards so they can utilize all signals. (5) Start in order of slave to master boards. CAUTION - When sampling clock signals are assigned to the synchronization control connector, the maximum clock frequency is restricted to 1500SPS (0.67ms or more). - When signals are assigned to the synchronization control connector, a delay of approximately 100nsec occurs at the slave board. DMM-552-PCI 33

41 3. External Connection Example 2: When controlling slave operations with master's internal events By outputting an internal event (interrupt) occurring on the master board, the slaves can start operating in sync with that signal. (1) Connect the SC cable. (2) Designate master/slave with the software. (3) Assign to the connector the event signal to be output from the master. (4) Set signals from the master to the start requirements on the slave boards. (5) Start in order of slave to master boards. Connecting the SC Connectors (CN5, CN6) This product is equipped with sync signal control connectors (CN5, CN6) for connecting a sync signal cable. When the cable is connected, multiple boards can operate in sync with one another. Connection Procedure Connect the sync signal cable when two or more boards need to operate in sync with one another. Connect CN5 with a smaller ID number to CN6 with a greater ID number with the cable. You should only use the cable that came with the board. ID = 0 ID = 1 ID = 2 Figure Connecting Cables 34 DMM-552-PCI

42 3. External Connection DMM-552-PCI 35

43 4. Functions 4. Functions This chapter explains the function that can be achieved by hardware and driver's combinations. driver indicates the thing of API-DMM(WDM) as long as there is no annotation. 5 Measurement Functions This product features 5 type of measurement functions. - DC voltage measurement - AC voltage measurement - DC current measurement - AC current measurement - 2 terminal resistance measurement The DC or AC voltage measurement Measures DC voltage or effective voltage of AC*1. DC voltage measurement - 5 measurement ranges: 300V, 100V, 10V, 1V, 100mV - Measurement method: Single end based on COM terminal (using ΔΣA/D converter*2) (Average the output data according to the integration time) - Input impedance: about 10MΩ for all ranges (10MΩ and 10GΩ or more are available for range 10V, 1V, 100mV) - Maximum input voltage: ±250V peak without a break for all ranges (between Voltage Input and COM terminal) Table 4.1 Auto range level Range Maximum number Full scale UP level DOWN level of digits displayed 300V 5 1/2 digits V 5 1/2 digits V 5 1/2 digits V 5 1/2 digits mV 5 1/2 digits When the auto-range is used, the range is 300V at beginning of measurement. In auto-range setting, the input impedance is fixed at 10MΩ. *1: Effective voltage indicates the value converted from an alternating current signal to a direct current. *2: ΔΣA/D converter is a kind of AD converter, and it is a favorable converter to implement high accuracy AD conversion. 36 DMM-552-PCI

44 4. Functions AC voltage measurement (effective value [AC coupled]) - 4 measurement ranges: 300V, 30V, 3V, 300mV - Measurement method: measuring AC coupled effective value through a capacitor (regardless of integration time setting, with a response time of 2s below) - Crest Factor*3: 3:1 - Input impedance: 10MΩ±2% and <150pF for all ranges - Maximum input voltage: 310Vrms, 450Vpeak(between Voltage Input and COM terminal) for all ranges Table 4.2 Auto range level Range Maximum number Full scale UP level DOWN level of digits displayed 300V 5 1/2 digits V 5 1/2 digits V 5 1/2 digits mV 5 1/2 digits When the auto-range is used, the range is 300V at beginning of measurement. *3: Crest Factor is defined as the ratio of peak vale to effective value of waveform (Crest Factor = peak / effective value). It indicates that the peak value is what times effective value that can be measured. In case of sine waveform, it is root 2 = The crest factor of main waveforms is given below. Triangular waveform: root 3=1.732, Square waveform: 1, Half-wave rectification: 2, Full-wave rectification: root 2 = DC or AC current measurement Measures DC or AC coupled AC current effective value. DC current measurement - 4 measurement ranges: 3A, 1A, 100mA, 10mA - Measurement method: I-V conversion through shunt resistors*4 (Averages the output data according to the integration time set) - Input impedance: less than 0.5Ω (3A, 1A ranges), less than 5.5Ω (100mA, 10mA ranages) - Input protection: 3.15A, 125V (Fast Blow fuse) Table 4.3 Auto range level Range Maximum number Full scale UP level DOWN level of digits displayed 3A 5 1/2 digits A 5 1/2 digits mA 5 1/2 digits mA 5 1/2 digits When the auto-range is used, the range is 3A at beginning of measurement. *4: I-V conversion through shunt resistors is a kind of measurement method, that measures the voltage dropped across the shunt resistor instead of measuring the current directly. DMM-552-PCI 37

45 4. Functions AC current measurement (effective value [AC coupled]) - 3 measurement ranges: 3A, 300mA, 30mA - Measurement method: I-V conversion through shunt resistors (regardless of integration time setting, with a response time of 2s below) - Input impedance: less than 0.5Ω (3A, 300mA ranges), less than 5.5Ω (30mA range) - Input protection: 3.15A, 125V (Fast Blow fuse) Table 4.4 Auto range level Range Maximum number Full scale UP level DOWN level of digits displayed 3A 5 1/2 digits mA 5 1/2 digits mA 5 1/2 digits When the auto-range is used, the range is 3A at beginning of measurement. Resistance measurement Measure the resistance value. 2-Wire Ohm Measurement - 6 measurement ranges: 10MΩ, 1MΩ, 100kΩ, 10kΩ, 1kΩ, 100Ω - Measurement method: 2-wire Ohms method*5 - Voltage among open terminals: less than 15V - Maximum input voltage: ±350V peak without a break for all ranges (between Voltage Input and COM terminal) Table 4.5 Source current Range Test current 10MΩ 500nA 1MΩ 5μA 100kΩ 10μA 10kΩ 100μA 1kΩ 1mA 100Ω 1mA 38 DMM-552-PCI

46 4. Functions Table 4.6 Auto range level Range Maximum number Full scale UP level DOWN level of digits displayed 10MΩ 5 1/2 digits MΩ 5 1/2 digits kΩ 5 1/2 digits kΩ 5 1/2 digits kΩ 5 1/2 digits Ω 5 1/2 digits When the auto-range is used, the range is 10MΩat beginning of measurement. *5: Most resistance measurements can be made by connecting terminals to both ends of the resistor, making the test current flow through the resistor, and measuring the voltage. 2-Wire Ohm Measurement method makes using the voltage measurement terminal with the same as the test current flowing terminal. DMM-552-PCI 39

47 4. Functions Introduction of measurement procedure When performing measurement using this product, the flow of process is classified as shown in the following figure. The measured data is stored in memory, and the measured data can be retrieved not only when the digital multi-meter is operating but also after the digital multi-meter has finished operation. 1. Initializing 2. Setting measurement condition Channel Measurement Measurement range Integration time Sampling clock Delay time Start condition Stop condition Event Level judgment 3. Starting/Stopping operation start/stop Start Stop 4. Monitoring status and Acquiring data Status The number of data stored in Retrieving data 5. Finishing 40 DMM-552-PCI

48 4. Functions 1. Initializing To use this product, it is required to perform device initialization. Please refer to the function reference DmmInit in DMM driver help for details. 2. Setting measurement condition Perform setting such as channel to use, measurement function, integration time, start/stop conditions. Channel The channel indicates a group of terminals used for measurement. For channel No, please refer to [Chapter 3. External Connection - How to connect the connectors - Connector Pin Assignment]. Select the channel to measure. The channels to measure can be enabled/disabled by software. Measurement function Indicate what to measure. For this product, DC/AC voltage, DC/AC current, resistance value (channel 1 only) can be measured. Measurement function can be set for each channel individually. Measurement range Indicate the measurable range for the measurement function set. For the measurable range for each measurement function, please refer to [Chapter 4. Functions - 5 Measurement Functions]. The measurement range can be set for each channel individually. This product features auto-range function. If the auto-range function is enabled, the range can be changed automatically according to the input signal level. This function takes action only during sampling. Integration time It indicates the time to integrate the input signal in order to eliminate the periodical change on input signal. For this product, perform AD conversion in unit of T4 time block shown below, and average those converted data to eliminate the periodical input change. The noise of power supply frequency can be eliminated by setting the integration time to a multiples of 16.67ms[60Hz] or 20ms[50Hz]. T1: Integration time (set by software) T2: AD conversion time (0.28ms or so, fixed) T3: Data acquisition + calculation time (50µs or less) T4: 1 block time of conversion (0.33ms or so, fixed) * In the AD conversion time, if the input value changed, the average value of input will become the conversion value. DMM-552-PCI 41

49 4. Functions Sampling clock Set the period to measure the input signal. For this product, the internal sampling clock or external sampling clock can be selected as the sampling clock. - Internal sampling clock The clock signal from the on-board clock generator is used. - External sampling clock The edge of the digital signal input from an external device is used for the sampling clock. It is required to set sampling clock longer than integration time. Moreover, calculation time (less than 0.33ms) exists after integration time, the sampling clock cannot input between that interval. When the Clock delay time is set, that time should also be added. (For Clock delay time, please refer to [Delay time].) Sampling clock >= Clock delay time* + Integration time ms (Calculation time) *Please apply the setting for the channel that require the longest delay time. Delay time The delay time can be set for start trigger or sampling clock. - Trigger delay time When internal clock is set, it is the time from start trigger input to first sampling clock input. When external clock is set, it is the time from start trigger input to accepting external sampling clock input. - Clock delay time It is the time from sampling clock input to measuring input signal. For this product, clock delay time can be set for each channel individually. 42 DMM-552-PCI

50 4. Functions Start condition The condition for controlling the start of sampling can be selected from among following triggers, software trigger, digital edge trigger, analog edge trigger, hysteresis, window trigger and event controller output. The conditions for controlling the start and stop of sampling are completely independent of each other, they can be set separately. - Software trigger The triggers generated from not external digital signal or analog signal but software are called software triggers. Software triggers are also called manual triggers or compulsion triggers. The trigger signal can be compulsorily generated by software trigger even the trigger satisfaction condition is set to external digital signal or analog signal. - Digital edge trigger It is the trigger occurs at the rising edge or the falling edge of external digital input signal, and the signal level is LVTTL. It is possible to input a trigger from other CONTEC boards via the synchronization control connectors (CN5, CN6). Digital I/O / Control connector (CN7) is used to input trigger signal from other device. - Analog edge trigger, hysteresis It is the trigger occurs when an input signal to a specified channel of the digitizer intersects a certain voltage level. A rise, fall or both directions is specified for the intersection of the voltage level. The hysteresis can be set to voltage level to prevent the trigger from occurring by mistake for the noise. - Window trigger It is the trigger occurs when an input signal to a specified channel of the digitizer is within or outside a specified voltage range for a certain period of time. Specify two kinds of voltage level, the upper bound value and the lower bound value, and set the time of being within or outside that range. DMM-552-PCI 43

51 4. Functions - Event controller output The board enters the external control signal wait state immediately after the operation start command is issued. When the event controller output preset is input, the board starts sampling and storing input data to memory. For event controller, please refer to event controller function or driver help. Stop condition The condition for controlling the stop of sampling can be selected from among software trigger, the last sampling count. The board stops sampling whenever an error occurs irrespective of the stop condition setting. - Last sampling count The board stops sampling after storing input data to memory for the specified number of times of sampling. - Software trigger The triggers generated from not external digital signal or analog signal but software are called software triggers. Software triggers are also called manual triggers or compulsion triggers. The trigger signal can be compulsorily generated by software trigger even the trigger satisfaction condition is set to external digital signal or analog signal. Event Event works as a function for notifying the occurrence of a certain board state to the application. The following events can be used. - End of device operation event This event occurs when the entire operation is completed. Level judgment By presetting the level comparison condition for input signal, this product can judge whether the comparison condition is satisfied. - Input data level comparison When the operation start command is issued, the board compares the input signal of specified channel to the value of the preset comparison level. If the signal satisfies the condition, the status indicating that the condition is satisfied will occurs. Level comparison condition is set as threshold level. The above sketch shows that the over-range condition is satisfied. Condition satisfied: input signal > level Satisfied condition removed: input signal <= level 44 DMM-552-PCI

52 4. Functions The above sketch shows that the under-range condition is satisfied. Condition satisfied: input signal < level Satisfied condition removed: input signal >= level - Input data in-range comparison For the in-range comparison start condition, when the input signal of specified channel enters the range set by level 1 and level 2, the condition is satisfied. Condition satisfied: level 2 <= input signal <= level 1 Satisfied condition removed: level 2 > input signal or input signal > level 1 - Input data out-range comparison For the out-range comparison start condition, when the input signal of specified channel leaves the range set by level 1 and level 2, the condition is satisfied. Condition satisfied: input signal < level 2 or level 1 < input signal Satisfied condition removed: level 2 <= input signal <= level 1 If the event notification is set, when an event occurred on the device, the event handler in application is called. If this product is used in level judgment mode, the level judgment processing is performed while data acquisition is performed. For the level judgment, the analog edge trigger, hysteresis and window trigger can be used simultaneously because they are implemented separately. DMM-552-PCI 45

53 4. Functions 3. Starting/Stopping operation Sampling is started by the software command. Once started, sampling can be stopped by the software command at any timing. 4. Monitoring status and Acquiring data Software commands are used to monitor the operation status of the device and to acquire input data from memory. Status monitoring and data acquisition can be performed even during sampling. Status The current state of the device can be checked by obtaining the device status. The following types of device status are available. - Device operating The device operating status remains ON, after the execution of the sampling start command until the board completes conversion, aborts operation sue to an error, or stops sampling in response to the command. - Waiting for start trigger This status remains ON, after the board starts sampling until the start trigger is input, if the conversion start condition is an external trigger or level comparison. The status is set to OFF when the input trigger is input to start conversion. - Overflow An overflow error occurs when an attempt is made to store input data to memory while it has been full of input data, and conversion stops. - Sampling clock error This error occurs when the sampling clock period is too short. The number of data stored in memory The number of sampled items of input data stored in memory can be obtained by the software command. 46 DMM-552-PCI

54 4. Functions Data acquisition Input data stored in memory can be acquired by the software command. Illustrated below is the relationship between the number of items of sampling of input data stored in memory and the input channels. (2 channels) Input data is acquired in the unit of (the number of channels x the number of times of sampling). When 2 channels are used, input data are stored in the order of channel 0, channel 1, regardless of the clock delay time setting. -Acquisition method The oldest data is always read first form memory. The following sketch shows an image of data acquisition. When data is acquired from the memory, the free memory space increases by that data size. When data is acquired next, the oldest one of the existing data items is taken from the memory. In that time, the data acquired once is deleted from memory. Data acquired Conversion data Free memory space for user memory Conversion data Free memory space 5. Finishing To finish the operation of this board, it is required to perform device completion processing. For details, please refer to DMM driver reference DmmExit. DMM-552-PCI 47

55 4. Functions Digital input function The input signal of this product is positive logic. When the input signal is [Hi] level, 1 is input to the corresponding bit. Reversely, when the input signal is [Lo] level, 0 is input to the corresponding bit. Input bit Individual digital input points are called input bits. When the number of input points of a device is 4, the bits are determined as bit 0 to bit 3. Input in bits The state 1 (ON) or 0 (OFF) of each input bit can be obtained by specifying the bit. Digital filter The digital filter can be set to input bits. The filter time can be selected between not used and 4µs by software. 48 DMM-552-PCI

56 4. Functions Digital output function The output signal of this product is negative logic. When [1] is output to a bit, the corresponding output is [ON]. Reversely, when [0] is output to a bit, the corresponding output is [OFF]. CAUTION - The all outputs is [OFF] after the power is turned on. Output bit Individual digital output points are called output bits. When the number of output points of a device is 4, the bits are determined as bit 0 to bit 3. Output in bits The state of each output bit can be changed to ON or OFF by specifying the bit and setting it to 1 or 0. DMM-552-PCI 49

57 5. About Software 5. About Software CD-ROM Directory Structure \ Autorun.exe Installer Main Window Readmej.html Version information on each driver (Japanese) Readmeu.html Version information on each driver (English).. APIPAC Each installer AioWdm CntWdm DigWdm DmmWdm.. INF INF file for each driver WDM Aio Cnt Dig Dmm... LINUX LINUX driver Readme Readme file for each driver SOFTWARE Measurement software.. UsersGuide Hardware User's Guide (PDF files) UTILITY 50 DMM-552-PCI

58 5. About Software About Software for Windows The bundled CD-ROM Driver Library API-PAC(W32) ctest contains the functions that provide the following features : - Analog input through arbitrary channels. - Measuring at arbitrary intervals using the internal or external sampling clock. - Simultaneous monitoring of the termination of sampling, buffer memory usage, and interrupt events such as occurrences of errors. For details, refer to the help file. The help file provides various items of information such as Function Reference, Sample Programs, and FAQs. Use them for program development and troubleshooting. DMM-552-PCI 51

59 5. About Software When using the API-DMM(WDM) Accessing the Help File (1) Click on the [Start] button on the Windows taskbar. (2) From the Start Menu, select Programs CONTEC API-PAC(W32) API-DMM(WDM) API-DMM(WDM) HELP to display help information. 52 DMM-552-PCI

60 5. About Software Using Sample Programs Sample programs are provided for each of the basic operations. You can use these to check the operation of the board and as a reference when writing your own programs. To use the sample programs, specify the device name in the property page for the program. The sample programs are stored in \Program Files\CONTEC\API-PAC(W32)\DMMWDM\Samples. Running a Sample Program (1) Click on the [Start] button on the Windows taskbar. (2) From the Start Menu, select Programs - CONTEC API-PAC(W32) - API-DMM(WDM) - SAMPLE. (3) A sample program is invoked. DMM-552-PCI 53

61 5. About Software Sample Programs - Examples - Measure Measures DC voltage, DC current, AC voltage, AC current, and resistance of single or multiple channels - AutoRange Measures DC voltage, DC current, AC voltage, AC current, and resistance by Auto-Range - LoadConfig Sampling from multiple channels using configuration file - Sync Synchronization sampling using 2 boards - DioBit Digital I/O in bit Configuration software By configuration software, you may create a configuration file of the digital multi-meter in a wizard form. The created configuration file can be read by front panel software or from the program using API-PAC(W32) ctest. By using the configuration file, there s a merit that the amount of program source code is decreased, and the measurement parameters can be changed without changing the source code itself. Click Configuration from Start menu- Program - CONTEC API-PAC(W32) - API-DMM(WDM) to use the configuration software. *The name of the board you have just added is displayed. - DMM-552-PCI 54 DMM-552-PCI

62 5. About Software Procedure (1) First select a radio button, either Perform setting newly or Edit a configuration file exists. Select an object device in the case of Perform setting newly, or specify the path of a configuration file in the case of Edit a configuration file exists, then click the Next button. (2) Follow the screen to perform settings on the following pages. The following contents can be set. - Digital filter setting - Event controller unit connection setting - Channel setting - Sampling setting - Trigger setting - Waveform judgment setting The display is grayout when the setting cannot be done by the combination. For more details on the setting contents, refer to API-DIG(WDM) HELP. (3) Specify the path to save the file on the last page. Then the configuration file is created in the specified path when the Finish button is clicked. Complete the operation without creating a configuration file by clicking the Cancel button. DMM-552-PCI 55

63 5. About Software Uninstalling the Driver Libraries The method used to uninstall API-PAC(W32) ctest differs depending on which OS you are using. Follow the procedure given below. Uninstall procedure for Windows 7 and Windows Vista < Uninstalling the device driver > 1. Run Device Manager. From [My Computer] - [Control Panel], select [System] and then select the [Device Manager] tab. (You can also open Device Manager by right clicking on My Computer and selecting Properties.) 2. All of the hardware that uses the API-TOOL(WDM) driver is registered under the CONTEC Devices tree. Open the device tree, select the hardware to uninstall, and then right-click the hardware. From the popup menu, select [Uninstall]. The name of the board you have just added is displayed. DMM-552-PCI 3. A dialog box opens asking you to confirm whether to uninstall. Select the [Delete the driver software for this device] checkbox, and then click [OK]. 56 DMM-552-PCI

64 5. About Software < Uninstall the development environment > Use [My Computer] - [Control Panel] - [Add and Remove Programs] to uninstall the development environment. Select [CONTEC API-DMM(WDM) VerX.XX (development environment)] and then click [Uninstall]. Uninstall procedure for Windows XP and Windows 2003 Server < Uninstall the device driver > Use [My Computer] - [Control Panel] - [Add and Remove Programs] to uninstall the device driver. Select [Windows driver package - CONTEC (cdmm)] and then click [Change/Remove]. < Uninstall the development environment > Use [My Computer] - [Control Panel] - [Add and Remove Programs] to uninstall the development environment. Select [CONTEC API-DMM(WDM) VerX.XX (development environment)] and then click [Change/Remove]. DMM-552-PCI 57

65 6. About Hardware 6. About Hardware This chapter provides hardware specifications and hardware-related supplementary information. Hardware specification Table 6.1. Specification < 1 / 2 > Item Measurement function DC voltage Range*1 Measurement method Input impedance Max. input voltage AC voltage Range*1 Measurement method Crest Factor Max. 3:1 Measurement frequency range Input impedance Max. input voltage Resistance(CH1 only) Range*1 Measurement method Voltage among open terminals Max. input voltage DC current Range*1 Measurement method 300V, 100V, 10V, 1V, 100mV ΔΣ Conversion mode <10V, 1V, 100mV range> 10MΩ±2% or >10GΩ(selectable) <300V, 100V range> 10MΩ±2%(fixed) ±350V peak no break for all ranges 300V, 30V, 3V, 300mV AC coupled effective value*2 30Hz - 100kHz Specification 10MΩ±2% // < 150pF 310Vrms, 450V peak no break for all ranges 10MΩ, 1MΩ, 100kΩ, 10kΩ, 1kΩ, 100Ω 2-wire Ohms method Max. 15V ±350V peak no break for all ranges 3A, 1A, 100mA, 10mA Direct connection to shunt resistor < 5.5Ω: 100mA, 10mA range Input impedance < 0.5Ω: 3A, 1A range 3.15A, 125V(Fast Blow fuse) Input protection (Square body fuses[r (Littelfuse)] equivalent) AC current Range*1 3A, 300mA, 30mA Direct connection to shunt resistor. Measuring AC coupled effective Measurement method value < 5.5Ω: 30mA range Input impedance < 0.5Ω: 3A, 300mA range Measurement frequency 40Hz to 500Hz range 3.15A, 125V(Fast Blow fuse) Input protection (Square body fuses [R (Littelfuse)] equivalent) *1: The peak of measurement voltage including DC offset voltage does not exceed 450V. *2: Depending on the cable specification, the method may not be used in case of high voltage and large current. 58 DMM-552-PCI

66 6. About Hardware Table 6.1. Specification < 2 / 2 > Item Specification Operation feature Conversion speed 1500SPS [0.67ms] Resolution 5 1/2 digits (When integration time 100ms is set) About 18bits equivalent Buffer memory 4k data shared by 2 channels Conversion start trigger software/input data comparison/external trigger/event controller output Conversion stop trigger Specified sampling data stored/software External start input signal LVTTL level (rising/falling signal edge can be selected by software) External clock input signal LVTTL level (rising/falling signal edge can be selected by software) External status output signal Open-collector output, sampling clock output (negative logic) External status output voltage 30VDC External status output current 40mA (per channel) (Max.) Response time Within 200nsec (change by pull-up resistor value) Digital I/O Number of input channels Un-Isolated input 4ch (LVTTL level, positive logic) Number of output channels Un-Isolated input 4ch (open-collector output, negative logic) Output voltage 30VDC Output current 40mA (per channel) (Max.) Response time Within 200nsec (change by pull-up resistor value) Synchronization bus section Control output signal Selection of output signal with the software when specifying a sync master board Control input signal Selection of sync factor with the software when specifying sync slave boards Max. board count for connection 16 boards including the master board Connector(CN5, CN6) PS-10PE-D4T1-B1 [mfd. By JAE] or equivalent x 2 Common I/O address 64 ports x 1 region Interrupt level Errors and various factors, One interrupt request line as INTA Target: CH0_V, CH0_I, CH1_V, CH1_I Connector (for measuring) Connector type: BNC connector Model: B-901(W) [mfd. By INSERT ENTERPRISE] or equivalent Target: CN7 Connector (for digital) Connector type: 16pin PIN header connector Model: PS-16PE-D4T1-B1 [mfd. By JAE] or equivalent Currrent consumption 5VDC, 700mA (Max.) Operating condition 0-50 C, 10-90%RH (No condensation) Bus specification PCI(32bit, 33MHz, Universal key shapes supported *3) Dimensions (mm) (L) x (H) Weight 300g *3: This board requires power supply at +5V from an expansion slot (it does not work on a machine with a +3.3V power supply alone). DMM-552-PCI 59

67 6. About Hardware Board Dimensions (L) (H) The standard outside dimension (L) is the distance from the end of the board to the outer surface of the slot cover. [mm] 60 DMM-552-PCI

68 6. About Hardware Measurement performance Measurement precision DC voltage measurement Measurement Input Max. Input precision*2 Temperature Range Resolution terminal dispaly impedance*1 ±(% of reading + digits) coefficient 25 V-COM 100mV μV >10GΩ/10MΩ±2% 0.03± ±5 1V μV >10GΩ/10MΩ±2% 0.01± ±1 10V μV 10MΩ±2% 0.01± ±1 100V mV 10MΩ±2% 0.04± ±1 300V mV 10MΩ±2% 0.08± ±1 *1: More than 10GΩ or 10MΩ can be selected by software for 100mV, 1V, 10V ranges *2: Integration time: 0.1s, display digits: 5 1/2 digits AC voltage measurement Input Max. Input Range Resolution terminal dispaly impedance Temperature coefficient V-COM 300mV μV 10MΩ±2% // < 80pF 0.03±23 3V μV 10MΩ±2% // < 80pF 0.04±3 30V μV 10MΩ±2% // < 150pF 0.07±3 300V mV 10MΩ±2% // < 150pF 0.08±3 Measurement precision *1 ±(% of reading + digits), 25 C Range 30Hz - 45Hz 45Hz - 1kHz 1kHz - 50kHz 50kHz - 100kHz 300mV 1.0± ± ± ±300 3V 1.0± ± ± ±180 30V 1.0± ±180 -*2 -*2 300V 1.0±180 (40Hz - 45Hz) 0.5±180 (45Hz - 500Hz) -*2 -*2 *1: Integration time: 0.1s, display digits: 5 1/2 digits *2: Measurement precision cannot be guaranteed. Crest Factor Additional error ±(% of reading) DC current measurement Measurement precision Input Max. Input *1 Temperature Range Resolution terminal display impedance ±(% of reading + digits) coefficient 25 C I-COM 10mA nA < 5.0Ω 0.03± ±11 100mA μA < 5.0Ω 0.03± ±1 1A μA < 0.5Ω 0.03± ±5 3A μA < 0.5Ω 0.25± ±5 *1: Integration time: 0.1s, display digits: 5 1/2 digits DMM-552-PCI 61

69 6. About Hardware AC current measurement Input Max. Input Range Resolution terminal display impedance Temperature coefficient I-COM 30mA nA < 5.0Ω 0.006±1 300mA μA < 0.5Ω 0.006±1 3A μA < 0.5Ω 0.007±1 Measurement precision *1 ±(% of reading + digits), 25 C Range 40Hz - 100Hz 100Hz - 500Hz 30mA 1.0± ± mA 1.0± ±180 3A 1.0± ±180 *1: Integration time: 0.1s, display digits: 5 1/2 digits Crest Factor Additional error ±(% of reading) Wire Ohm Measurement Measurement precision Input Max. Measurement *1 Temperature Range Resolution terminal display current ±(% of reading + digits) coefficient 25 C V-COM 100Ω mΩ 1mA 0.03± ±6 (CH1 1kΩ mΩ 1mA 0.03± ±2 only) 10kΩ mΩ 100μA 0.03± ±2 100kΩ Ω 10μA 0.03± ±2 1MΩ Ω 5μA 0.03± ±3 10MΩ Ω 500nA 0.03± ±3 *1: Integration time: 0.1s, display digits: 5 1/2 digits, the resistance of cable is added to error. 62 DMM-552-PCI

70 6. About Hardware Measurement speed Hum-Noise Removal Integration time Sampling speed Digits 60Hz 50Hz NPLC NMRR NPLC NMRR 0.33ms [1/3000s] 0.67ms 3 1/2 digits ms [1/1500s] 1.00ms 3 1/2 digits ms [1/600s] 2.00ms 3 1/2 digits ms [1/60s] 17.00ms 4 1/2 digits 1 > 60dB ms [1/50s] 20.33ms 4 1/2 digits > 60dB 33.33ms [2/60s] 33.67ms 4 1/2 digits 2 > 60dB ms [2/50s] 40.33ms 4 1/2 digits > 60dB ms [6/60s] / [5/50s] ms 5 1/2 digits 6 > 60dB 5 > 60dB ms [6/50s] ms 5 1/2 digits > 60dB ms [10/60s] ms 5 1/2 digits 10 > 60dB ms [10/50s] ms 5 1/2 digits > 60dB ms [100/60s] ms 5 1/2 digits 100 > 60dB ms [100/50s] ms 5 1/2 digits > 60dB NPLC (Number of Power Line Cycles): NPLC sets the integration time in number of power line cycles. If the noise is at the line frequency (60Hz, i.e. 1 cycle = 1/60s), it can be removed over one cycle. Sometimes however, the noise is not uniform, and the signal should be integrated over multiple cycles. The greater the number of power line cycles, the more accurate the signal value will be. NMRR (Normal Mode Rejection Rate): NMRR is often used to indicate the capability to reject a hum noise. DMM-552-PCI 63

71 6. About Hardware Block Diagram Figure 6.1 is a circuit block diagram of this product. Figure 6.1. Block Diagram 64 DMM-552-PCI