ctest series 100MSPS 2ch Digitizer Board for PCI DIG-100M1002-PCI User s Guide CONTEC CO.,LTD.

Transcription

1 ctest series 100MSPS 2ch Digitizer Board for PCI DIG-100M1002-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 [DIG-100M1002-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] DIG-100M1002-PCI i

3 Copyright Copyright 2009 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 DIG-100M1002-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... 4 Cable & Connector (Option)... 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-AIO(WDM) Step 4 Checking and Changing the Initialization Setup Step 5 Checking Operations with the Front Panel Software What is the front panel software? Check Method...18 DIG-100M1002-PCI iii

5 Operating the Front Panel Software...19 Setup Troubleshooting...21 Symptoms and Actions...21 If your problem cannot be resolved EXTERNAL CONNECTION 23 How to connect the connectors...23 Connector shape...23 Connector Pin Assignment...24 Connecting the Analog Input Signal...25 Connection Example of Single-ended Input...25 Connecting the External Trigger I/O Signal...26 Connecting the Reference Clock I/O Signal...27 Synchronization Control Connectors...29 SC Connectors...29 Connecting the SC Connectors (CN6, CN7) FUNCTIONS 31 3 practical requirements...31 Oscilloscope Mode...31 Data Logger Mode...31 Waveform judgment instrument mode...32 Overviews of Setting Order...33 Common Setting...34 Horizontal Axis Setting...35 Vertical Axis Setting...37 Trigger Setting...39 Waveform judgment setting...41 Operation Control...41 Status / Data Acquisition...42 The Other Function ABOUT SOFTWARE 45 CD-ROM Directory Structure...45 About Software for Windows...46 When using the API-DIG(WDM)...47 Accessing the Help File...47 Using Sample Programs...48 Uninstalling the Driver Libraries ABOUT HARDWARE 57 iv DIG-100M1002-PCI

6 Hardware specification Block Diagram Timing for Control Signal Timing for Control Signal of Analog Input Function DIG-100M1002-PCI v

7 vi DIG-100M1002-PCI

8 1. Before Using the Product 1. Before Using the Product About the Product This product is a PCI-bus compliant digitizer board. It is designed with the following features: 10-bit resulotion, up to 100MSPS (10nsec) conversion speed, sampling 2 channels simtaneously. In addition, it features with the PASS/FAIL judgment functionality by comparing input data with the setted standard data (mask data) one by one. The large (16M data) on-board memory and bus master transfer function allow continuous data acquisition to be performed at high speed for a long period. The automation of the measurement is facilitated by factors such as various sampling control and waveform judgment function based on mask data. The mask editor software is attached as a tool to generate comparison waveform data. You can create the waveform data by drawing on screen directly with mouse or drawing with mathematics functions (input numerical values). Moreover, you can make use of the supplied front panel soft as an oscilloscope or a waveform judgment instrument. In addition, Windows API is also supplied, so that you can also program in Visual Baisc or Visual C++. Features Free yourself from visual inspection. The inspected input signal can be automatically judged whether OK or NG. By comparing the sampled signal waveform with the pass range which is set beforehand, a pass or fail judgement can be done automatically with the waveform level. It is intended to not only save labor on present visual examination greatly but also improve/uniform the quality. Moreove, the Mask Editor Software is supplied as a tool to create comparison waveform data and is Windows exclusive use, by which the following operation can be done, drawing on screen directly/drawing straight line/sine wave with mouse, drawing constant voltage/ square wave/triangular wave/step//ramp/sawtooth wave with mathematics functions. Front panel software is suppiled that can be used as the oscilloscope or the waveform judgement instrument easily. The Front Panel Software, an application that makes an image of oscilloscope or waveform judgment instrument, is supplied. You can use it easily with no need of programming. Moreover, you can use it to check the configured execution environment, because it features the functionality of diagnosing and reporting the status of the board and device driver. DIG-100M1002-PCI 1

9 1. Before Using the Product Resolution 10bits, maximum conversion speed is 10MSPS (100nsec), with simultaneous sampling of 2channels at a time A 10bits high-speed A/D vonverter is used, the measurement at the highest conversion speed of 100MSPS(10nsec) is possible. It is possible to sample 2 channels simultaneously. Moreover, it is equipped with a mass on-board memory of 16M data that archieves continuous sampling, regardless of the processing performance of the PC. It is also equipped with bus master transfer function by which the sampling data is transferred to PC memory with high speed. A variety of settings for signal input such as impedance, range, filter and coupling can be performed. Analog input channel's input impedance can be selected between 50Ω and 1MΩ. The measurement using a general-purpose passive probe is also possible by 1MΩ. According to the voltage level of signal source connected, a number of ranges can be swithed (When 1MΩ is set, there are 10 ranges between 40mVpk[±20mV] and 40Vpk[±20V]. When 50Ω is set, there are 8 ranges between 40mVpk[±20mV] and 10Vpk[±5V]), so that you can make good use of the 10bit resolution. By enabling the noise filter (low pass filter: 20MHZ ), it is possible to perform the measurement with reducing the influence of mixed high frequency noise from signal source and ambient environment. The input coupling can be selected from AC/DC/GND. (AC is only available when 1MΩ is set.) The synchronization between external instrument and the board is possible with the reference clock I/O. The synchronization between other measuring instrument or another board with the same type becomes easily for that the reference clock (10MHz) can be input/output. It is possible to expand the number of channels by the synchronization between another board with the same type, and measure the mixed signal by the synchronization between other measuring instrument. Sampling can be controlled by software, conversion data comparison, external trigger, event controller output, and similar start and stop conditions Sampling can be setup to be started and stopped by software, conversion data comparison, external trigger, or event controller output. Control of sampling start and stop is completely independent and a separate setting is provided for each. It is also possible to specify that sampling stop after a specified number of samples. There are two kinds of comparison for conversion data. The one is implemented by comparing the conversion data edge (rising edge, falling edge or both edges), the other one is implemented by window trigger that is satisfied when conversion data go inside/outside a certain boundary. BNC connector used for analog input, trigger and reference clock The BNC connector used for the connector has a characteristic impedance of 50Ω and is of a type commonly used for high speed analog signal. 2 DIG-100M1002-PCI

10 1. Before Using the Product The function of saving/reading configuration file and auto setup for samping condition The work time of setup can be greatly shortened for that acquisition conditions such as horizontal axis setting, vertical axis setting and trigger setting can be save/read into/from a file. Moreover, it is equipped with the auto setup function that scans input signals of each channel and then performs settings automatically. By configuration software, it is possible to create a configuration file of acquisition conditions or edit an existing file in a wizard form. The created file can be read by front panel software or from the program using API-PAC(W32) ctest. Windows compatible driver library API-PAC(W32) ctest is attached. Using the attached driver library makes it possible to create applications of Window. DIG-100M1002-PCI 3

11 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-DIG(WDM) [Stored on the bundled CD-ROM driver library API-PAC(W32) ctest] The API-DIG(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 an oscilloscope or waveform judgment instrument, 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. Windows version of application software Mask editor software [Stored on the bundled CD-ROM driver library API-PAC(W32) ctest] By the mask editor software, you may create a configuration file for waveform judgment with creating the waveform by drawing on screen directly with mouse or drawing with mathematics functions. < 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 ( Cable & Connector (Option) < For analog I/O > BNC Cable : BNC-B100 (1m) : BNC-B200 (2m) : BNC-B300 (3m) * Check the CONTEC s Web site for more information on these options. 4 DIG-100M1002-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. DIG-100M1002-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. The 50Ω termination resistor in particular can become hot if it is used. - 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. - Do not touch the external connector (BNC connector) when the power is on. Otherwise this may malfunction, cause a failure due to static electricity. 6 DIG-100M1002-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. - 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. DIG-100M1002-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 DIG-100M1002-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. DIG-100M1002-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 DIG-100M1002-PCI

18 2. Setup Select API-DIG(WDM) (1) The following dialog box appears to select Driver to install and Install option, Usage of driver library. (2) Select the "Digitizer 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. DIG-100M1002-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. Synchronization control cable (CN6, CN7) CH1 CH0 CN6 CN ABCDEF 0 12 ctest Series Digitizer DIG-100M1002-PCI MADE IN JAPAN Board ID Setting Switch SW1 BOARD ID ABCDEF CLK TRG Interface connector (CH0, CH1, CLK, TRG) CH1 CH0 CLK TRG Figure 2.1. Part Names 12 DIG-100M1002-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 9ABCDEF SW1 Factory setting : (Board ID = 0) Figure 2.2. Board ID Settings (SW1) DIG-100M1002-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. - Power supply from the PCI bus slot at +5V and +3.3V 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. A 14 DIG-100M1002-PCI

22 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-AIO(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. You have now finished installing the hardware. DIG-100M1002-PCI 15

23 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. - DIG-100M1002-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 DIG000 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. 16 DIG-100M1002-PCI

24 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. DIG-100M1002-PCI 17

25 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 an oscilloscope or waveform judgment instrument, 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 diagrams below show examples of inputting the signal from channel 0. connections, see Chapter 3 External Connection. For details on the CAUTION Input data remains indeterminate when no input pin is connected. The input pin for the channel not connected to the signal source must be connected to the analog ground. For details, see Chapter 3 External Connection. 18 DIG-100M1002-PCI

26 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. Pressing the [Auto Setup] button automatically detects the signal of channel and adjusts the screen display. For more details on the using method of front panel software, refer to the API-DIG(WDM) HELP. DIG-100M1002-PCI 19

27 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 20 DIG-100M1002-PCI

28 2. Setup Setup Troubleshooting Symptoms and Actions Data input or output does not operate correctly - Run the front panel software to check that the device is registered and whether any initialization errors have occurred. - Is there a problem with the device settings, wiring, or similar? Check the input range, input impedance, band width, input coupling and offset setting. Also, the input data will be undefined if the wiring terminals are not connected. Ensure that the channels you are using are correctly connected. Connect unused channels to analog ground. - For voltage input, check by connecting a battery or similar if you do not have any other suitable signal source. Also check that connecting to analog ground reads correctly as 0V. The board works with the front panel software but not with an application. The front panel software is coded with API-DIG(WDM) functions. As long as the board operates with the front panel software, it is to operate with other applications as well. In such cases, review your program while paying attention to the following points: - 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-DIG(WDM) HELP. If your problem cannot be resolved Contact your retailer. DIG-100M1002-PCI 21

29 2. Setup 22 DIG-100M1002-PCI

30 CH1 CH0 CLK TRG ABCDEF CH1 CH0 CLK TRG 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, CH1, CLK, TRG) shown below. This product has the following interface connectors: the (CH0, CH1 connector) for analog inputs, (CLK connector) for reference clock and (TRG connector) for external trigger I/O. Interface connector (CH0, CH1, CLK, TRG) CN6 CN7 CH1 SW1 ctest Series Digitizer DIG-100M1002-PCI MADE IN JAPAN 456 CH0 CLK - BNC connector [plug type] B6252HB-NPP3G-50 [mfd. by AMPHENOL TAIWAN] or equivalence to it TRG (CH0, CH1, CLK, TRG) * Please refer to chapter 1 for more information on the supported cable and accessories. Figure 3.1. Interface Connector Shape Option BNC cable BNC-Bxxx * Please refer to chapter 1 for more information on the supported cable and accessories. Figure 3.2. Examples of Connecting Options DIG-100M1002-PCI 23

31 3. External Connection Connector Pin Assignment Pin Assignment of CH0, CH1, CLK, TRG Analog Input 0-1 Analog Ground Trigger Input (IN) Trigger Output (OUT) Reference CLK Digital Ground Analog input signals. The numbers correspond to channel numbers. Analog ground common to analog input signals. External trigger input signal used for sampling start condition and sampling clock etc. Combined use of the external trigger output and the connector. Can be only used as either external trigger input or external trigger output. Outputs internal sampling clock and waveform judgment result as status signal. Combined use of the external trigger input and the connector. Can be only used as either external trigger input or external trigger output. Reference clock I/O signal Can be only used as either input or output. Digital ground common to digital I/O signals. Figure 3.3. Pin Assignment of CH0, CH1, CLK, TRG CAUTION Please do not connect the analog ground and the digital ground. The measurement result of the analog signal may be influenced. 24 DIG-100M1002-PCI

32 3. External Connection Connecting the Analog Input Signal Connection Example of Single-ended Input The following figure shows an example of shield cable connection. Connect BNC connector of CH0/CH1 for each anlog input channel respectively, the wick line to the signal line and the shield braid to the ground. BOARD CH0/CH1 Shield cable Signal Source Analog Input 0/1 Analog Ground Figure 3.4. Connecting the Single-ended Input (shield cable) CAUTION - Do not touch the external connector (BNC connector) when the power is on. Otherwise this may malfunction, cause a failure due to static electricity. - When high frequency more than 1/2 of the sampling frequency is included in the signal source, alias occurs, and the signal might not be acquired normally. - If this product and the signal source receive noise or the distance between this product and the signal source is too long, data may not be input properly. - The analog signal to be input should not exceed the maximum input voltage (based on this product analog ground). If it exceeds the maximum voltage, this product may be damaged. - Input data remains indeterminate when no input pin is connected. The analog input pin for the channel not connected to the signal source must be connected to the analog ground. Please do not connect terminal resistances such as 50Ω and75ω instead of short circuit. - When input impedance is 50Ω, the output current (output voltage/50) from the signal source grows. Please confirm the current value of the connected signal source first. - When the ground is set to input coupling type, please disconnect signal source from BNC connector first. If you do not so, signal source may fail. - The settings of range setting etc. are unsettled when the PC is started. - Please adjust the input impedance to 50Ω when the signal reflection etc. are anxious. - However, the effect cannot be achieved except for cases such as setting the output impedance of the signal source to 50Ω, and setting the characteristic impedance of the used connector/cable etc. to 50Ω. DIG-100M1002-PCI 25

33 3. External Connection Connecting the External Trigger I/O Signal This section shows an example of how to connect external trigger I/O signals (post trigger input signals and sampling clock input signal) using BNC cable. User can use an optional BNC cable (BNC-Bxxx) to connect your external devices to BNC connector of TRG. External trigger I/O signal is the positive logical I/O. These external trigger I/O signals are 3.3VLVTTL level not only for the input but also for the output. The external trigger I/O signal also can be used as BNC connector of TRG. Therefore, it can be only used as either the input or the output. Switching I/O can be done by the software. BOARD 3.3V 10kΩ TRG Shield cable Target SN74LVC245A 50Ω Trigger Input Digital Ground Figure 3.5. Connecting the External Trigger Input 3.3V BOARD TRG 10kΩ SN74LVC245A Trigger 50Ω Output Digital Ground Shield cable Target Figure 3.6. Connecting the External Trigger Output CAUTION - Do not connect any output signal to the analog or digital ground. Do not interconnect outputs. Doing either can cause a malfunction. - The signal input of 5VTTL/5VCOMOS is possible. - The input is the default at startup. Reference For the operation timings for trigger I/O signal, see Timing for Control Signal in Chapter 6 About Hardware. 26 DIG-100M1002-PCI

34 3. External Connection Connecting the Reference Clock I/O Signal This section shows an example of how to connect reference clock I/O signals using BNC cable. User can use an optional BNC cable (BNC-Bxxx) to connect your external devices to CLK. External trigger I/O signal is the positive logical I/O. All the I/O signals are 3.3VLVTTL level. In addition, the reference clock I/O signal also can be used as BNC connector of CLK. Therefore, it can be only used as either the input or the output. Switching I/O can be done by the software. BOARD CLK Shield cable Target 50Ω Reference CLK (IN) Digital Ground Figure 3.7. Connecting the Reference Clock Input BOARD CLK Reference CLK (OUT) Shield cable Target Typ Digital Ground Figure 3.8. Connecting the Reference Clock Output CAUTION - Do not connect any output signal to the analog or digital ground. Do not interconnect outputs. Doing either can cause a malfunction. - The input is the default at startup. DIG-100M1002-PCI 27

35 3. External Connection The reference clock is a period signal that becomes the standard of the sampling period. It is possible to expand the number of channels by the synchronization between external instrument or another board with the same type by the reference clock, and measure the mixed signal by the synchronization between other measurement instrument. Moveover, it is also used in the case of performing sampling at a more accurate period supplied by frequency standards etc. Input CLK Connector Input circuit PLL circuit AD converter CLK can be selected besides the reference clock from outside. Output CLK Connector Output circuit PLL circuit Oscillator Figure 3.9. Connecting the Reference Clock Reference For the input / output condition of reference clock, see Reference Clock I/O in Chapter 6 About Hardware. 28 DIG-100M1002-PCI

36 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 (CN6, CN7). 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 5MHz. - When signals are assigned to the synchronization control connector, a delay of approximately 100nsec occurs at the slave board. DIG-100M1002-PCI 29

37 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 (CN6, CN7) This product is equipped with sync signal control connectors (CN3, CN4) 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 CN6 with a smaller ID number to CN7 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 30 DIG-100M1002-PCI

38 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-DIG(WDM) as long as there is no annotation. 3 practical requirements This product is equipped with 3 kinds of operation modes to meet the practical requirements. The Oscilloscope Mode It is the mode that assumes the usage as the oscilloscope of the measuring instrument. The oscilloscope is used to observe the shape of period waves with vasious frequencies, and confirm the state of the pulse generated instantly and the edge signal etc. For that real-time waveform display is necessary for the oscilloscope, the latest waveform data can be acquired from plural waveform data stored in the memory at any moment. Moreover, the waveform acquisition operation continues even when the defeat of the wareform occurred by sample rate and trigger formation condition etc., for that it specializes in the real-time monitoring of the latest data. The figure is a data acquisition image in the oscilloscope mode. The rising edge etc of analog signal are made a trigger, data before and after that is acquired as record waveform. When the acquisition processing of a record is not in time, the next record is acquired cancelling the current record. Data Logger Mode It is the mode that assumes the usage as data logger. It is used to acquire arbitrary waveform and save all the data into a file. Within the range of on-board memory size, all acquisition data can be acquired regardless of other acquisition conditions. Moveover, the data is acquired periodically avoiding the overflow of driver memory, by which infinite sampling can be performed. The figure is a data acquisition image in the data logger mode. In data logger mode, it is possible to control data acquisition timing with two kinds of triggers, pretrigger and post-trigger. DIG-100M1002-PCI 31

39 4. Functions All the data, which combines pre-trigger sampling and post-trigger sampling, can be acquired. Waveform judgment instrument mode It is the mode that assumes the usage as waveform judgment instrument. It is a function to compare the data used for waveform judgment and set beforehand with the actual input waveform, so as to perform one by one, pass or fail judgment of the record waveform automatically. In waveform judgment instrument mode, it is possible to count the number of generation times of the waveform judgment result (PASS/FAIL). A limit value is set to the counter, when the number of generation times of PASS or FAIL reached the limit, the digitizer operation is stopped and the signal is output to outside. Moreover, by acquiring the conversion data and the waveform judgment result, the PASS/FAIL result of the acquisition data can be confirmed by a record unit. And a detailed analysis for judgment results such as whether each sample data exceeding the upper bound/lower bound value of the mask data, is also possible. The figure is a data acquisition image in the waveform judgment instrument mode. The record loss is inhibited. The digitizer operation stops when all records cannot be acquired by exceeding the limit of the processing performance. 32 DIG-100M1002-PCI

40 4. Functions Overviews of Setting Order The processing flow for using this product is roughly divided into 3 categories as shown in the figure below. Initialization processing Common setting Waveform judgment setting Horizontal axis setting Vertical axis setting Operation start Trigger setting Waveform judgment setting Data acquisition 1. Acquisition condition setting Perform the settings related to the entire operation of the digitizer. Set digitizer operation mode, event controller, abort factor, event notification, filterting of digital signal and so on. < Horizontal axis setting > It is settings concerning the time axis of the digitizer. It performs settings of sampling mode, reference clock source,, sampling clock source, sample rate, acquisition record length, acquisition record times, trigger point (duty ratio) and so on. < Vertical axis setting > It is settings of each channel of the digitizer. It performs settings of input range, offset, impedance, coupling, band width, probe attenuation rate and so on. < Trigger setting > It is settings concerning the pre-trigger and the post-trigger. It performs settings of trigger type, the direction of the edge, level voltage, hysteresis, settling times, hold off time, delay time and so on. <Waveform judgment setting> It is settings when the digitizer is used in the waveform judgment instrument mode. 2. Operation start End processing Start the digitizer operation after setting acquisition conditions. It is possible to generate a signal and stop the operation by a software command. The state of the digitizer can be confirmed by acquiring the status, the number of samples, the number of records etc. DIG-100M1002-PCI 33

41 4. Functions If event notification is set, the event handler of the application is called when an event is generated on the digitizer side. When the digitizer is used in waveform judgment instrument mode, the digitizer does waveform judgment processing simultaneously while performing data acquisition. 3. Data acquisition The data can be acquired not only during digitizer operation but also after operation completion. The data can be acquired from the oldest data sequentially, and the latest data can be acquired. Moreover, the data can be acquired by binary value or voltage value. With the same acquisition condition, it is possible to perform repeated processing for motion start and data acquisition. It is also possible to perform a series of a processes again after changing acquisition conditions. Common Setting Auto setup function The digitizer scans input signals of each channel when auto setup function is executed. The driver performs settings for the vertical axis, the horizontal axis, and the trigger automatically when a signal is detected from a channel. The sample rate, record length, input range, and trigger level are automatically set according to the frequency and the amplitude of input signal. As for other acquisition conditions such as duty ratio and input impedance, a fixed value is set. Save/Read acquisition condition setting The contents of acquisition conditions (horizontal axis setting, vertical axis setting, trigger setting, waveform judgment setting) set to the digitizer board can be read/written from/into a file. With a configuration file of acquisition conditions, by the on-site PC which the system operates, fine adjustment of parameters and the customization.can be done easily. Moreover, by using configuration software, you may create a new configuration file of acquisition conditions or edit an existing file, thus the program development work can be reduced. Set abort factor The digitizer operation is aborted when a certain condition is satisfied. Plural abort factors can be set effective/ ineffective individually. For example, when a sampling clock error occurred by the noise and chattering as external sampling clock is used, it is possible to continue the sampling disregarding the error or abort the operation. Event notification It is the function to notify the application of the event generated in the digitizer. For example, to detect the operation completion of the digitizer in the application, if the event notification function is used, the specified handler in the program is called when the digitizer operation completed, though the program is made to observe states such as the status and the number of samples usually. 34 DIG-100M1002-PCI

42 4. Functions Horizontal Axis Setting The horizontal axis setting becomes the common setting contents for plural channels. Reference clock CONTEC digitizer uses LVTTL signal of 10MHz, duty ratio of 50% as a reference clock. The reference clock of 10MHz is a frequency that can be used by most measuring instruments. This reference clock is used as an input to PLL ( Phase-locked loop). This clock is made 10 times in PLL, and the signal of 100MHz is generated to the AD converter for clock use. The source signal of the reference clock can be selected from the digitizer itself or an external signal. When only the digitizer board is used, the crystal transmitter in the board is used as the reference clock source to PLL. To perform the synchronization between plural digitizer boards, with synchronization bus, output the reference clock on master device side, and input the reference clock on slave device side. Moreover, BNC connector (CLK) for reference clock I/O is used to perform the synchronization of the reference clock between external instrument and the digitizer. Sampling clock The sampling clock is a clock signal that generates the timing to acquire AD conversion data. The AD converter always performs sampling at 100MHz for that it uses the reference clock output from PLL. The digitizer transfers the conversion data to the memory after extracting it at the period of the set sampling clock. To perform the synchronization between other CONTEC device, with synchronization bus, output the sampling clock on master device side, and input the sampling clock on slave device side. Moreover, BNC connector (TRG) for trigger I/O is used to perform the synchronization of the sampling clock between external instrument and the digitizer. Sampling rate It is possible to set the sample rate when the sampling clock of the digitizer itselt is used. The sample rate is expressed as a frequency (sample times per second), and the unit is Hz. The sample rate can be set within the range from 0.025Hz to 100,000,000Hz. By the nyquist theorem, a signal must be sampled at a frequency at least twice the maximum frequency element. When the sample rate is less than that, the phenomenon called aliasing occurs that an original signal cannot reproduce. Record One waveform data is expressed by a record unit. The record data consist of pre-trigger sample data and post-trigger sample data. record = pre-trigger sample + post-trigger sample DIG-100M1002-PCI 35

43 4. Functions The sample data before and after the post-trigger (or, trigger only) are called pre-trigger sample and post-trigger sample respectively. Set the record length long to collect and observe longer waves like zoom out of the oscilloscope, and set the record length short to collect and observe shorter waves like zoom in of the oscilloscope. Usually the oscilloscope acquires the record data repeatedly. The record data finally acquired are transferred in the form that plural record data continuously ranged as the figure shown below. Duty ratio The duty ratio shows the position of the post-trigger in a record. The duty ratio also shows the ratio of record length for pre-trigger sampling and post-trigger sampling. The duty ratio can be calculated as follows. Duty ratio(%) = the number of pri-trigger samples / record length 100 The position of the post-trigger moves to the left/right side in a record when the duty ratio is near to 0%/100%. Memory and transfer mode The block diagram about data transfer is shown below. The data of channel 0 and channel 1 converted by each AD converter respectively are transferred to device driver memory via the on-board memory. The size of the on-board memory is 32M bytes (16M data), the size of device driver memory is automatically secured by the driver and its maximum size becomes about 60M bytes. The bus master transfer is performed from the on-board memory to device driver memory. The maximum throughput (transfer ability) becomes 33MHz, 32 bits depending on the PCI bus architecture. On the other hand, the maximum transfer speed from the AD converter to the on-board memory becomes 100MHz, 32 bits when the sampling of 100MHz is performed for 2 channels. For that it exceeds the throughput of bus master transfer, the data cannot be transferred infinitely. In this case, the acquisition operation is aborted by the overflow of the on-board memory. When the digitizer is used in the oscilloscope mode, the latest acquisition data is transferred after waiting for the on-board memory to ensure space. Therefore, the loss should occur to the acquired waveform though the operation of the digitizer never stops. 36 DIG-100M1002-PCI

44 4. Functions Vertical Axis Setting Resolution The resolution is the number of bits used to express an analogue signal as a digital value. With high resolution, the range of the voltage si divided finely, thus the analog value can be converted into digital value more accurately. This product has a resolution of 10 bits, its range of digital value is from 0 to Channel The channel shows each point that is possible to input analog signal. Please refer to the description of 3. EXTERNAL CONNECTION-How to connect the connectors-connector Pin Assignment for each channel number. For that the AD converter is installed in each of the two channels for this product, the simultaneous sampling is possible. An arbitrary point can be digitized by setting the channel with software. Range The range is a range of the voltage that can be digitized. This product has the following ten kinds of ranges, the waveform of the analog signal can be digitalized by selecting an appropriate input range according to the voltage range of the input signal. The input range is mainly described in a full scale range for CONTEC digitizer. Input range Full-scale range (FSR) ±20V 40Vpk ±10V 20Vpk ±5V 10Vpk ±2V 4Vpk ±1V 2Vpk ±0.5V 1Vpk ±0.2V 0.4Vpk ±0.1V 0.2Vpk ±0.05V 0.1Vpk ±0.02V 0.04Vpk Offset The offset function is a function to shift the voltage of the entire input signals up and down. When the input signal consists of direct current (DC) element and alternating current (AC) element, the precision necessary for the observation of the AC element might not be obtained even if the input range is regulated. In this case, the input range can be effectively used by adjusting the offset to make the center of the AC element of input signal become 0V. DIG-100M1002-PCI 37

45 4. Functions Impedance The impedance generally expresses the resistance of alternating current signal and is merely called resistance for direct current signal. The resistance of the signal input circuit (digitizer board) is called an input impedance. The input impedance can be set to 50Ω or 1MΩ for CONTEC digitizer board. The current flows to the digitizer when the input impedance of the digitizer is low, and the measurement result is influenced by the voltage descent. Therefore, set the input impedance of the digitizer as high as possible, and reduce the measurement error by connecting the digitizer as much as possible. For example, set the input impedance of the digitizer to 1MΩ to measure signals of the circuit etc. However, the resistance of 50Ω maybe necessary for the terminal resistance depending on the instrument of the measurement object. In this case, the correct voltage can be measured by setting the input impedance on the digitizer side to 50Ω. Coupling The coupling is a method of connecting the circuit of the measurement object with the digitizer to transfer signals. The input coupling can be connected to DC, AC or the ground. DC coupling All the input signals can be displayed. AC coupling The acquired signal are displayed at the center of 0V by intercepting the DC element from the signals. Ground coupling The input signals are intercepted from the vertical axis circuit, and are short-circuited with the ground in the digitizer. The acquired signal becomes DC voltage of 0V. Band width Band width can also refer to frequency bandwidth, and is defined as the 3db attenuation point of the amplitude of sinewave input signal. 3dB is known as the input signal attenuated by 70.7% of its original amplitude. The band width of this product becomes 40MHz. Moreover, this digitizer board carries a 20MHz band width filter, so that it can suppress the effects of a high frequency noise. 38 DIG-100M1002-PCI

46 4. Functions Probe attenuation rate There are attenuation rates such as 1:1, 10:1, 100:1 and 1000:1 for a probe, and the passive voltage probe of 10:1 is most commonly used. The attenuation rate of 10:1 means that the measured voltage enters the digitizer after being attenuated to 1/10 by the probe. When the attenuation rate is changed by a probe, it is necessary to correct the attenuation on the digitizer side and make the converted data 10 times. Auto limit range The auto limit range is a function to set whether change the input range to +/-20V automatically when the overrange (Input signal exceeds the upper bound/lower bound of the input range of the digitizer) occurs. When overvoltage is input into the digitizer board, the malfunction and deterioration of the board parts are protected by automatically changing the input range to +/-20V. Trigger Setting Pre-trigger/Post-trigger The trigger signal is a signal to control the acquisition operation of the digitizer such as signal acquisition start/stop and state switch. There are pre-trigger and post-trigger, two kinds of trigger signals for the trigger of the digitizer. The pre-trigger is a signal only significative when the digitizer is used in data logger mode, and when the pre-trigger is satisfied, it starts data acquisition as data logger. The pre-trigger occurs automatically in the digitizer inside for operational modes other than data logger mode. The post-trigger is merely called a trigger, and it is a particularly important function for the oscilloscope. In order to observe periodic signal on the screen, it is necessary to perform the acquisition that the waveform of each record data has the same shape (Otherwise, the signal cannot be confirmed visually with the scattered screen). The trigger signal is used for that purpose, the usual method is to specify the level and the direction of the voltage, and set trigger conditions for channels that input signals. For example, set the level to +3V and the trigger to rising direction for the sine-wave signal of 1MHz with a amplitude of 10V and an offset of 0V. By doing so, data before and after the generation of this trigger are respectively digitized as pre-trigger sample and post-trigger sample, and plural record waves consist of sample data with the same shape. DIG-100M1002-PCI 39

47 4. Functions Software trigger The trigger that generates by not only external digital signal and analog signal but also software is called a software trigger. Software trigger is also called manual trigger or compulsion trigger. The trigger signal can be compulsorily generated by software trigger even when the trigger formation 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 board via the synchronization control connector (CN6, CN7). The BNC connector (TRG) for trigger I/O is used to input trigger signal form other instrument. 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, a fall or both direction is specified to 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 the range of a specifid voltage for a certain period of time. Specify two kinds of voltage levels, the upper bound value and the lower bound value, and set the time of being within or outside that range. The window trigger is a convenient function for measuring power malfunction such as short interruption, voltage surge/sag, frequency variation, voltage descent and so on. 40 DIG-100M1002-PCI

48 4. Functions Waveform judgment setting Mask setting To use the waveform judgment function, you should make the mask data that becomes the comparison object and set it to the digitizer beforehand. There are three methods for making the mask data: generate the data automatically while acquiring the actual waveform, generate the data using GUI software Mask Editer and generate the data in a program. Waveform judgment counter It is possible to count the number of times of the waveform judgment result (PASS/FAIL) for each record data. A limit value is set to the counter, when the number of generation times of PASS or FAIL reached the limit, the digitizer operation is stopped and the signal is output to outside. Output the result of waveform judgment The result of the waveform judgment can be output outside as a digital signal. Such conditions can be set as outputting once/outputting every judgment result, pulse output/level output, and positive logic/negative logic. Operation Control Synchronization start/asynchronization start There are two methods for starting the digitizer operation, synchronization and asynchronization. When asynchronization start is used, the driver function issues a start command to the digitizer and returns immediately. Therefore, the application can do other processing during the digitizer operation. On the other hand, it is necessary to observe the digitizer state regularly or use the event notification function so that the application knows the operation completion of the digitizer. It is necessary to use asynchronization start for infinite sampling. When synchronization start is used, the driver function doesn't return the control until the the digitizer stopped operating. Therefore, the application cannot do other processing until the digitizer stopped operating. On the other hand, the programming becomes concise for there s no need to detect the operation completion of the digitizer. DIG-100M1002-PCI 41

49 4. Functions Status / Data Acquisition Binary / Voltage acquisition The acquisition data can be acquired by the unit of binary value or voltage value. Record data acquisition The acquisition data is retrieved by a sample unit when the digitizer is used in data logger mode. The sample data can be acquired not only during the operation but also after the operation of the digitizer. Moreove, the acquisition is always be done from the oldest data in data logger mode. One-shot measurement The one-shot measurement can be done besides the usual data acquisition operation. The present value of a signal input into the digitizer can be acquired by the one-shot measurement. The one-short measurement can be done when the digitizer is operating. Overview and detail of waveform judgment result In waveform judgment instrument mode, the overview data and the detailed data of the waveform judgment result can be acquired while the acquisition data is being retrieved. The overview data of the waveform judgment result contains the state of OK or NG for the judgment result of the record. The detailed data of the waveform judgment result contains the information that each sample data of the record whether exceeds the upper bound/lower bound value of the mask data, or is within the range. 42 DIG-100M1002-PCI

50 4. Functions The Other Function Event controller The event controller is a function handled in the digitizer to decide how to combine various control signals. Various control signals can be output outside by customizing the combination of control signals. Such operation as the following examples is possible by the use of the event controller function. - The sampling clock of the digitizer is output to synchronization bus or Trigger Output. - The reference clock for PLL is output to Reference CLK. - A pulse is output to synchronization bus or Trigger Output whenever the acquisition of one record is completed, - The pulse is output to synchronization bus or Trigger Output when the operation of the digitizer is completed. - A pulse is output to synchronization bus or Trigger Output when the pre-trigger or the post-trigger of the digitizer is satisfied. - The result of the waveform comparison (OK/ NG/count match) is output to synchronization bus or Trigger Output as the pulse or the level. - The signal of synchronization bus is output to Trigger Output. - A pulse is output to synchronization bus or Trigger Output when the digitizer stops abnormally. - Master device or slave device is aborted by conditions such as an error that occurred in the board. DIG-100M1002-PCI 43

51 4. Functions 44 DIG-100M1002-PCI

52 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.. INF INF file for each driver WDM Aio Cnt Dig... Readme Readme file for each driver.. UsersGuide Hardware User's Guide (PDF files) DIG-100M1002-PCI 45

53 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 : - The settings matched to the acquisition signal can be automatically done by using the auto setup function. - It is possible to acquire only necessary signals by setting trigger conditions for analog edge trigger, analog window trigger and digital edge trigger and so on. - The data used for waveform judgment can be generated automatically matching to the acquisition signal. - Acquisition conditions can be set to the device in mass with a configuration file. 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. 46 DIG-100M1002-PCI

54 5. About Software When using the API-DIG(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-DIG(WDM) API-DIG(WDM) HELP to display help information. DIG-100M1002-PCI 47

55 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)\DIGWDM\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-DIG(WDM) - SAMPLE. (3) A sample program is invoked. 48 DIG-100M1002-PCI

56 5. About Software Sample Programs - Examples Data logger mode - DataLogger Sampling by specified times for specified channels, and saving a file - Infinity Sampling for specified channels for a long time - Sync Synchronization sampling using 2 boards OschilloScope Mode - OschilloScope Sampling using auto setup function - LoadConfig Sampling for plural channels using configuration file Waveform judgment mode - WaveformJudgement1 Waveform judgment using auto mask function - WaveformJudgement2 Waveform judgment using fixed value for judgment standard DIG-100M1002-PCI 49

57 5. About Software Configuration software By configuration software, you may create a configuration file of the digitizer 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 Wizard from Start menu- Program - CONTEC API-PAC(W32) - API-DIG(WDM) to use the configuration software. *The name of the board you have just added is displayed. - DIG-100M1002-PCI 50 DIG-100M1002-PCI

58 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. - Operation mode setting - Abort factor setting - Digital filter setting - Event controller unit connection setting - Horizontal axis setting - Vertical axis 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. DIG-100M1002-PCI 51

59 5. About Software Mask editor software By the mask editor software, you can create a configuration file for waveform judgment with creating the waveform by drawing on screen directly with mouse or drawing with mathematics functions. The mask data for the waveform judgment can be intuitively created by using the mask editor software. Moreover, the judgment data can be theoretically created for that the waveform can be generated with a mathematics function. Click Mack Editor from Start menu- Program - CONTEC API-PAC(W32) - API-DIG(WDM) to use the mask editor software. *The name of the board you have just added is displayed. DIG-100M1002-PCI 52 DIG-100M1002-PCI

60 5. About Software Procedure (1) A configuration file is created by the mask editor software as well as the configuration software. 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, then click the Next button. 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 in the case of Perform setting newly. The following contents can be set. - Abort factor setting - Digital filter setting - Event controller unit connection setting - Horizontal axis setting - Vertical axis 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. DIG-100M1002-PCI 53

61 5. About Software (3) An editing screen displays after the setting completed. Edit the mask data for waveform judgment. Various tools to edit the following mask data are stored in the Tool Box window. Drawing system tool: Tools to directly draw on the screen with the mouse. - Freehand - Straight line - Sine waves Mathematics function system tool: Tools to theoretically make data using a mathematics function. Each parameter of a mathematics function is input on the Function Viewer window. - Sine waves - Constant voltage - Square waves - Triangular waves - Step - Ramp - Sawtooth waves Moreover, you may confirm the value of set data or edit the data value directly on the [Data Viewer] window (4) Choose File - Save As from the menu and specify the saving path of the file to save the mask data edited. 54 DIG-100M1002-PCI

62 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. DIG-100M1002-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]. DIG-100M1002-PCI 55

63 5. About Software < Uninstall the development environment > Use [My Computer] - [Control Panel] - [Add and Remove Programs] to uninstall the development environment. Select [CONTEC API-DIG(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 (****)] 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-DIG(WDM) VerX.XX (development environment)] and then click [Change/Remove]. 56 DIG-100M1002-PCI