MW100 CAN Bus Module Configuration Tool (MX118-CAN-M30/S1) User s Manual

Transcription

1 MW100 CAN Bus Module Configuration Tool (MX118-CAN-M30/S1) User s Manual 1

2 Contents Before Using the Software... 3 Explanation of Functions... 3 MX118 Part Names and Functions... 3 Operation Guide... 4 PC System Requirements... 5 Setting Up the Software... 6 Launching and Exiting the Software... 9 Using the Configuration Tool Connecting the MX Serial Communication Settings...11 CAN Communication Settings (General Screen) Setting the Message ID (Message Screen) Channel Settings (Channel Screen) Copying and Pasting Settings Sending and Receiving Settings Displaying Module Information Saving and Loading Settings Creating New Settings Printing Settings Changing to Measurement Mode Troubleshooting Troubleshooting Error Messages and Corrective Actions Appendix Bit timing table Default of bit timing Example of Extracting Measured Data

3 Before Using the Software Explanation of Functions Overview of Functions A one-to-one connection can be made between the MX118-CAN-M30 CAN Bus Input Module (hereinafter, the MX118) and a PC allowing specific settings to be entered on the MX118. The sofware enables you to enter MX118 CAN bus communication settings, enter conditions for extracting measured data, save and load settings, print lists of settings, and perform other functions. MX118 Part Names and Functions Serial Comm. Connector For entering MX118 settings. Dip Switch Switches operation mode, sets baud rate, and turns terminator ON/OFF. CAN Bus Comm. Connector Connects to the CAN bus. 3

4 Operation Guide Op. on Main Unit Op. on PC Set up MW100, Install MX118 Section 2.1, Connecting the MX118 Section.1.6, Sec. 2.2, Sec.2.3, CAN Sec.2.3, CAN Comm Settings ID Sec. 2.4, Setting Message ID Sec. 2.5, Sec. 2.7, Place MX118 Sec., 2.12, Connect to CAN bus Set up MW100 4

5 PC System Requirements PC A PC with an Intel Pentium III, 800-MHz CPU or higher and at least 256 MB of memory. OS (Operating System) Windows 2000 SP4 or later, or Windows XP SP2 or later (recommended). CD-ROM Drive A CD-ROM drive compatible with the OS. The drive is used to install the software. Free Hard Disk Space 10 MB or more. Display XGA ( resolution) or higher and capable of displaying or more colors. Serial Port An RS-232 port available to the OS. 5

6 Setting Up the Software The following procedures apply to software installation on Windows XP. 1. Turn ON the power to the PC and start Windows. You must log into Windows with Administrator privileges in order to install the software. This is also the case when using Windows If Autorun Is Enabled 2. Insert the CD-ROM into the drive. The language selection screen in displayed. 3. Select the desired language. The setup program starts automatically. Proceed to step 4. If Autorun Is Disabled 2. Double-click My Computer, then double-click the CD-ROM icon to open the CD-ROM drive window. 3. Double-click the SETUP.EXE file in the DISK1 folder of the English subdirectory. The setup program launches. 4. Click the Next button. 5. Enter the user name, company, and serial number in the dialog box in the figure below, then click Next. The license number is located on a label affixed to the case of the CAN Bus Module Configuration Tool CD-ROM. 6

7 6. Enter the installation directory then click Next. The default directory is C:MX118 CAN Bus. Change the directory if necessary. 7. Click Next to start the installation. 8. Click Finish to complete the installation. 7

8 Installation Results If the software is properly installed, a folder named MX118 CAN Bus is created in the specified directory (on the C: drive by default). MW118 CAN Bus is registered in the program list, and MW118 CAN Bus Module Configuration Tool is registered in its sub list. 8

9 Launching and Exiting the Software Launching the Software As shown in the figure below, choose Start > Programs > MX118 CAN Bus > MX118 CAN Bus Module Configuration Tool. Exiting the Software Choose Exit from the File menu. Note When exiting the program, if the settings were changed from the last time they were saved, a dialog box appears confirming whether to save the changes. 9

10 Using the Configuration Tool Connecting the MX118 Perform the following procedure to connect the MX118 to the PC and place it in Setting mode. 1. Install the MX118 in the MW Connect the SERIAL connector of the MX118 to the PC s RS232 port. The MX118 uses a 9-pin D-sub connector. Connect to the PC s communication port as follows. PC COM port SD RD SG MX118 SERIAL 3 TXD 2 RXD 5 GND Wiring serial communications Serial comm. connector pin no s 3. Confirm that the power to the MX118 is OFF, and set the dip switches as shown below on the front of the MX118. Turn ON the power with dip switch No. 1 turned on to place the MX118 in Setting mode. Set dip switch No. 2 according to the baud rate of the serial port ON For baud rate of bps No. 1 ON No. 2 No. 7 OFF No. 8 Ignored ON For baud rate of 9600 bps No. 1 ON No. 2 ON No. 3 No. 7 OFF No. 8 Ignored 4. Turn ON the power to the MW100. When operating in Setting mode, the MX118 s STATUS LED blinks at one second intervals. Note Ensure that dip switches 3-7 are turned OFF regardless of the MX118 s operation mode. 10

11 Serial Communication Settings Enter serial communication settings to configure the MX Choose Communication > Settings. Or, click the Communication Settings icon on the toolbar. Click here or 2. Select the port to be used. 3. Select a baud rate of 9600 bps or bps. 4. Click the OK button to enter the settings. Explanation Port Enter the communication port of the PC connected to the MX118. Baud Rate (bps) Enter the speed for serial communications used to configure the MX118. Enter a baud rate corresponding to the dip switch setting on the front of the MX

12 CAN Communication Settings (General Screen) Enter the slot width and CAN communication related settings. If the General screen is not displayed, click the General tab. 1. Select a slot width from 1-3 depending on the number of channels you wish to measure. 2. Select a CAN bit rate for the CAN bus. 3. If you wish to enter detailed settings related to bit timing, click the More button. CAN Bit Rate Explanation Module Displays the model name of the module connected to the PC. Only the model name MX118-CAN-M30 is displayed. Slot Width The number of channels that the MX118 can measure varies depending on the selected slot width. The MW100 main module recognizes the MX118 as the module of the specified slot width. Therefore, the positions of slots on which the MX118 can be installed, and the number of modules that can be installed in the MW100 varies. If installing another module to the left of the MX118, leave (specified slot width - 1) number of slots open. Slot width Max. measurement channels Slots available for the MX118 Required open slots Max. installed modules 1 10 Slots 0, 1, 2, 3, 4, 5 None Slots 0, 1, 2, 3, 4 1 to the left Slots 0, 1, 2, 3 2 to the left 4 Free up (slot width - 1) In fig., slot width is 3 12

13 CAN Bit Rate (bps) You can set the speed of CAN bus communication. Select a bit rate from the following values. If you select Other, the detailed setting screen is displayed automatically. For the default bit timing in the various bit rates, see appendix 4.2, Default Bit Timing Values. 10 Kbps, 20 Kbps, 33.3Kbps, 50 Kbps, 62.5 Kbps, 83.3 Kbps, 100 Kbps, 125 Kbps, 250 Kbps, 500 Kbps, 800 Kbps, 1 Mbps, Other CAN Bit Timing Advanced Settings Click the More button to display detailed CAN bus communication settings. Here, you can select a bit timing from a fixed range for the selected bit rate. If you change the CAN bit rate, the bit timing reverts to the default value. For the available settings for the various bit rates, see appendix 4.1, List of Bit Timing Values. Also, if you wish to set a bit rate or bit timing value other than the above, select Other under CAN Bit Rate and enter the detailed settings. When the details are displayed, the button text changes to Less. You can click the Less button to hide the detailed settings. 13

14 Baud Rate Prescaler (BRP) You can set the baud rate prescaler value. The available setting range is Time Quanta Count (TQC) You can set the number of divisions of 1 bit. The available setting range is TQC = SS + TSEG1 + TSEG2 Synchronization Segment (SS) The synchronization segment is fixed to 1. TSEG1(PRSEG + PHSEG1) You can set the total value for the propagation time segment and phase buffer segment 1 in the range from 4 to 16. TSEG2(PHSEG2) You can set the value for phase buffer segment 2 in the range from 2 to 8. Ensure that TSEG2 < TSEG1. Re-Synchronization Jump Width (SJW) You can set the synchronization jump width value in the range from 1 to 4. Ensure that SJW TSEG2. Bit Sample Point (BSP) You can set the number of samplings to 1 or 3. Also, the sampling point position is displayed as a percentage. SS + TSEG1 BSP = 100 [%] SS + TSEG1 + TSEG2 Bit Rate Displays the bit rate. The bit rate for the MX118 is calculated using the following formula. Bit Rate = 12,000,000 BRP SS + TSEG1 + TSEG2 [bps] 14

15 Setting the Message ID (Message Screen) You can enter settings related to the CAN message ID. If the Message screen is not displayed, click the Message tab. 1. Select a message number format of OFF, Standard, or Extended. 2. Enter the CAN message ID to be measured under BASE-ID (or BASE-ID and EXT-ID) using hexadecimal notation. Explanation Format You can set the format for the CAN message to be measured. Select OFF for the format of message numbers you will not use. The format of the message number selected under Message No. in the Channel screen cannot be turned OFF. Standard: Select when receiving standard format CAN messages. Extended: Select when receiving extended format CAN messages. ID For standard format, the available setting range is 0 to 7FF (11-bit hexadecimal). For extended format, the available setting range is 0 to 1FFFFFFF (29-bit hexadecimal), but with this software the 11-bit base ID portion is set separately from the 18-bit extended ID portion. BASE-ID You can input the BASE-ID if Standard or Extended is selected for the format. You can enter an 11-bit standard format ID, or an 11-bit extended format base ID in hexadecimal notation. The available setting range is 0 to 7FF (11 bit). EXT-ID You can input the EXT-ID if Extended is selected for the format. You can enter an 18-bit extended format extended ID. The available setting range is 0 to 3FFFF (18 bit). 15

16 Channel Settings (Channel Screen) For each measurement channel, you can enter settings related to extracting and normalizing measured data from CAN messages. If the Channel screen is not displayed, click the Channel tab. 1. Select the message numbers for which IDs of the data to be measured were set. 2. Select Value Type, Start Bit Pos, Bit Length, or Endian depending on the data to be measured. The Start Bit Pos and Bit Length settings are fixed when Value Type is selected. 3. Enter the input range for the measured data under Value Min and Value Max. 4. Enter the values to be displayed on the MW100 under Span Min and Span Max. Explanation Message No. The message numbers enabled in Setting Message ID (Message Screen) (MSGxx) are displayed. Select the message number for which the CAN message ID including the data to be measured was specified. Turn OFF message numbers of unused channels. If Message No. is set to something other than OFF, Value Type and the settings thereafter are enabled. If Slot Width is set to something other than 3, Message No. for certain channels is disabled and cannot be set. Value Type Select the data type of measured data extracted from the data field from the following. Signed: Signed integer Unsigned: Unsigned integer Float: 32-bit floating point number Double: 64-bit floating point number Note The channel ON/OFF settings are independent of the settings on the MW100 main module. If channels for which Message No. is turned OFF are set to COM in the MW100 main module channel settings, the measured values of those channels will be invalid. 16

17 Start Bit Pos. You can specify a start bit position for extraction of data to be measured included in the data field. Enter the lsb number of the measured data. See below for how to count bit numbers in the MX118. The values that can be selected vary depending on the Value Type setting. Signed: 0 62 Unsigned: 0 63 Float: 0 32 Double: 0 (fixed) Bit Length Specify the data to be measured in terms of the number of bits. The values that can be selected vary depending on the Value Type and Start Bit Pos settings. Signed: 2 64 (however, Bit Length (64 Start Bit Pos) ) Unsigned: 1 64 (however, Bit Length (64 Start Bit Pos) ) Float: 32 (fixed) Double: 64 (fixed) Endian Select the byte order when receiving data from the data field of Big or Little. Big: Big Endian Little: Little Endian Counting Bit Numbers The method for counting bit numbers differs depending on the Endian setting. For details, see appendix 4.3, "Example of Extracting Measured Data." For Big Endian From the start of the data field, starting with msb of the MSB, bit numbers decrease in units of bytes or bits from left to right. In this case, the data field is considered to be 8 bytes, and for data fields less than 8 bytes, they are counted from the top of the byte bit MSB msb lsb bit LSB MSB most sig. byte LSB least sig. byte msb most sig. bit lsb least sig. bit For Little Endian From the start of the data field, starting with the msb of the LSB, bit numbers increase in units of bits from right to left, and in units of bytes from left to right bit LSB MSB msb lsb 7 0 bit MSB most sig. byte LSB least sig. byte msb most sig. bit lsb least sig. bit 17

18 Value Min. / Max. You can enter the upper and lower limits of measured data. The values that can be entered vary depending on the Value Type and Bit Length settings. Ensure that Value Min < Value Max. Value Type:Signed Bit Length Ex. of Available Setting Range Value Type:Unsigned Bit Length Ex. of Available Setting Range Value Type:Float Available Setting Range Value Type:Double Available Setting Range Span Min. / Max. Set the upper or lower limits of the values to record on the MW100. The setting range is to Ensure that Span Min < Span Max. Data within the value setting range that was extracted from the CAN message is converted to values within the span setting range (normalized) and displayed and recorded on the MW100. Value Min. Span Max. Span Min. + Span Min. Value Max. Value Min. Note Setting the value and span to the same settings as those (span and scale) of the MW100 main module channel settings will minimize computation errors. Value Min. = Span Min. = MW100 Span Lower (= MW100 Scale Lower) Value Max. = Span Max. = MW100 Span Upper (= MW100 Scale Upper) 18

19 Copying and Pasting Settings Settings in the Message and Channel screens can be copied to other message numbers or channels. 1. Click to select the message or channel number to copy. The selected item changes color, and the Copy button is enabled. Drag to select a continuous range to copy. Click or drag copy source to select 2. Click the Copy button. The selection is copied, and the Paste button is enabled. Click the Copy button 3. Click the message or channel number(s) in which to paste. The selected items change color. Drag to select a continuous range in which to paste. Copy source is pasted to the selected range 4. Click the Paste button to paste the message numbers or channels copied in step 3. Click the Paste button Click or drag to select the paste destination 19

20 Sending and Receiving Settings Receiving Settings You can receive settings from the MX118 and load them onto the software. 1. Choose Communication > Receive Settings. Or, click the Receive Settings icon on the toolbar. Click here or 2. The Receive Settings dialog box opens. Click OK to receive the settings. Settings currently being edited in the Configuration Tool are overwritten by the received settings. Sending Settings Settings entered on the Configuration Tool can be sent to the MX Choose Communication > Send Settings. Or, click the Send Settings icon on the toolbar. Click here or 2. The Send Settings dialog box opens. Click OK to send the settings. 20

21 Displaying Module Information You can acquire information about the MX118 module connected to the PC. 1. Choose Communication > Module Info. 2. The module information is displayed. Model No. Firmware Version Slot No. Max Slot Width Update Explanation Model No. Displays the model name of the module. Firmware Version Displays the firmware version of the module. Slot No. Displays the slot number (0-5) of the installed module. Max Slot Width Displays the maximum value that can be set for the slot width in the common setting screen. Update Displays the date and time at which settings were sent to the module. 21

22 Saving and Loading Settings Saving Settings You can save settings created on the configuration tool to a file. 1. Choose File > Save or Save As. or 2. If you select Save As, or if you click Save to save settings for the first time, the Save As dialog box opens. Enter the filename in the Save As dialog box and click the Save button. If you enter an existing filename, a dialog box is displayed prompting you to confirm whether to overwrite the existing file. 22

23 Loading Settings Files You can load a previously saved settings file. 1. Choose File > Open. Or, click Open on the toolbar. Click here or 2. Select the file to load in the Open dialog box and click the Open button. 23

24 Creating New Settings You can initialize the settings. Choose File > New. Or, click New on the toolbar. Click here or Note When creating new settings, if the settings were changed from the last time they were saved, a dialog box appears confirming whether to save the changes. 24

25 Printing Settings You can print a list of settings, preview printing, and enter printer settings. Print 1. Choose File > Print. Or, click the Print icon on the toolbar. 2. The Print dialog box opens. In the Print dialog box, select the printer, print range, and the number of copies, and then click the OK button. Click here or To print the detailed settings of bit timing, display the detailed settings in the General setting screen. General Settings CAN Bit Timing Advanced Settings Message Settings Channel Settings 25

26 Print Preview Choose File > Print Preview. An image of the printout is displayed. Print Setup... Choose File > Print Setup. The Print Setup dialog box appears. 26

27 Changing to Measurement Mode Disconnect the MX118 from the PC before switching to Measurement mode. 1. Turn OFF the power to the MW Turn OFF dip switches 1 and 3 7 on the front of the MX118. Dip switch number 2 is not used for Measurement mode, and is therefore ignored when in Measurement mode. Dip switch number 8 is used for the terminator setting. Set as needed ON When termnator is ON No. 1 OFF No. 2 Ignored No. 3 No. 7 OFF No. 8 ON ON When terminator is OFF No. 1 OFF No. 2 Ignored No. 3 No. 8 OFF 4. Turn ON the power to the MW100. When operating in Measurement mode, the MX118 s STATUS LED lights. 27

28 Troubleshooting Troubleshooting STATUS LED does not light (blink) (Measurement mode or Setting mode) Possible Problem Corrective Action Refer to Page The power to the MW100 is not ON. Turn ON the power to the MW100. Module not correctly installed. Turn OFF the power, remove the module, then insert it into the slot again. Malfunction. Servicing required. STATUS LED does not blink (Setting mode) Possible Problem Corrective Action Refer to Page The dipswitch settings are not correct. Turn ON dip switch number 1. P. 10 Turned MX118 dip switches while the Power cycle the MW100. P. 10 Power to the MW100 is ON. When turning dip switches, be sure to cut the power to the MW100 first (except no. 8). Malfunction. Servicing required. STATUS LED blink (Measurement mode) Possible Problem Corrective Action Refer to Page The dipswitch settings are not correct. Turn OFF dip switch number 1. P. 27 Turned MX118 dip switches while the Power cycle the MW100. P. 27 Power to the MW100 is ON. When turning dip switches, be sure to cut the power to the MW100 first (except no. 8). Error occurred while sending settings. Place the MX118 in Setting mode, then resend P. 20 (blinked 3 times in half a second) the settings. Malfunction. Servicing required. The MW100 does not detect the MX118, or slot width is different Possible Problem Corrective Action Refer to Page Module connection or module startup Turn OFF the power, remove the module, then error. insert it into the slot again. Attached the module while the power was ON. When slot width = 2 or 3 Leave 1 or 2 slots to the left of the MX118 open. P. 12 Attached another module to the left of the MX118. When slot width = 2 or 3 Install the MX118 in a different slot. P. 12 Installed the MX118 into slot 5 or 6. The MX118 is in Setting mode. Turn OFF the MW100, and change the MX118 P. 27 to Measurement mode. Malfunction. Servicing required. 28

29 Cannot take measurements (when ACTIVE LED does not blink). Possible Problem Corrective Action Refer to Page Cable not connected. Check CAN cable connections. Wiring incorrect. Check pin assignments and wiring methods. Using Low Speed CAN. LS CAN not supported. Terminator settings not correct. Enter terminator settings as necessary (dip switch no. 8). Bit rate not appropriate. Change to an appropriate bit rate setting. P. 13 All message numbers are OFF. Change message format and ID to an P. 15 appropriate setting. Message ID incorrect. Change message format and ID to an P. 15 appropriate setting. Malfunction. Servicing required. Cannot take measurements (when ACTIVE LED blinks). Possible Problem Corrective Action Refer to Page Channel s message numbers are OFF. Select a message number. P. 16 Data type incorrect. Change the data type to an appropriate setting. P. 16 Start bit position not correct. Change Start bit position to an appropriate P. 17 setting. Bit length not correct. Change bit length to an appropriate setting. P. 17 Endian not correct. Change Endian to an appropriate setting. P. 17 Measured value is non-numerical when If a non-numerical value is received, Invalid data type is Float or Double. is displayed. Malfunction. Servicing required. 29

30 Error Messages and Corrective Actions Message Description/Corrective Actions Refer to Page Cannot connect to the target module. Turn ON the power to the MW100. P. 10 Place the MX118 in Setting mode. Connect the serial cable correctly. Set the communications port and baud rate correctly. Communication Error. See Cannot connect to module above. Illegal data exist. Receiving aborted. Settings may not have been properly received. P. 20 Repeat the reception procedure. If the same error message appears again, the settings saved on the module may be corrupt. Send new settings to the module. Error occurred when opening unsupported file. Check the file type. The file may be corrupt. An attempt was made to access an unnamed file past its end. The file may be corrupt. The message is in use and cannot be Check the message number settings in the P. 15 turned OFF. channel screen. Some of the following channel settings are illegal and will be changed to initial values. OK to continue? Set the value or span upper and lower limits so that: Lower limit < Upper limit P

31 Bit timing table Detailed set selecting items possible range in each Bit rate. The abbreviation in the table shows the following meaning. BRP Baud Rate Prescaler TQC Time Quanta Count SS Synchronization Segment SJW Re-Synchronization Jump Width BSP Bit Sample Point Bit Rate = 10K BRP TQC Bit Timing SS TSEG1 TSEG2 SJW BSP ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2, ,2,3, ,2,3, ,2,3, ,2,3, ,2, , ,2,3, ,2,3, ,2,3, ,2, , ,2,3, ,2,3, ,2, , ,2,3, ,2, , ,2, ,2 1 31

32 Bit Rate = 20K BRP TQC Bit Timing SS TSEG1 TSEG2 SJW BSP ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2, ,2,3, ,2,3, ,2,3, ,2, , ,2,3, ,2,3, ,2, , ,2,3, ,2, , ,2, ,2 1 32

33 Bit Rate = 33.3K Bit Timing BRP TQC SS TSEG1 TSEG2 SJW BSP ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2, ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2, , ,2,3, ,2,3, ,2,3, ,2, , ,2,3, ,2,3, ,2, , ,2,3, ,2, , ,2, , ,2, ,2 1 33

34 Bit Rate = 50K BRP TQC Bit Timing SS TSEG1 TSEG2 SJW BSP ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2, ,2,3, ,2,3, ,2,3, ,2,3, ,2, , ,2,3, ,2,3, ,2,3, ,2, , ,2,3, ,2,3, ,2, , ,2,3, ,2, , ,2, ,2 1 Bit Rate = 62.5K Bit Timing BRP TQC SS TSEG1 TSEG2 SJW BSP ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2, , ,2,3, ,2,3, ,2, , ,2, ,2 1 34

35 Bit Rate = 83.3K BRP TQC Bit Timing SS TSEG1 TSEG2 SJW BSP ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2, , ,2,3, ,2,3, ,2,3, ,2,3, ,2, , ,2,3, ,2,3, ,2, , ,2, , ,2, ,2 1 35

36 Bit Rate = 100K BRP TQC Bit Timing SS TSEG1 TSEG2 SJW BSP ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2,3, ,2, ,2,3, ,2,3, ,2,3, ,2, , ,2,3, ,2,3, ,2, , ,2,3, ,2, , ,2, ,2 1 Bit Rate = 125K BRP TQC Bit Timing SS TSEG1 TSEG2 SJW BSP ,2,3,4 1, ,2,3,4 1, ,2,3, ,2,3, ,2,3, ,2,3, ,2, , ,2,3, ,2,3, ,2, , ,2, ,2 1 36

37 Bit Rate = 250K BRP TQC Bit Timing SS TSEG1 TSEG2 SJW BSP ,2,3,4 1, ,2,3,4 1, ,2,3,4 1, ,2,3,4 1, ,2,3,4 1, ,2,3,4 1, ,2,3 1, ,2 1, ,2,3,4 1, ,2,3,4 1, ,2,3 1, ,2 1, ,2, ,2 1 Bit Rate = 500K BRP TQC Bit Timing SS TSEG1 TSEG2 SJW BSP ,2,3,4 1, ,2,3,4 1, ,2,3,4 1, ,2,3,4 1, ,2,3 1, ,2 1, ,2,3 1, ,2 1,3 Bit Rate = 800K BRP TQC Bit Timing SS TSEG1 TSEG2 SJW BSP 8 6 1,2,3,4 1, ,2,3,4 1, ,2,3,4 1, ,2,3 1, ,2 1,3 Bit Rate = 1M BRP TQC Bit Timing SS TSEG1 TSEG2 SJW BSP 6 5 1,2,3,4 1, ,2,3,4 1, ,2,3 1, ,2 1,3 37

38 Default of bit timing The default of a detailed setting of each bit rate is shown in the following. Bit Rate Bit Timing BSP BRP TQC [bps] SS TSEG1 TSEG2 SJW BSP [%] 10k k k k k k k k k k k M Other

39 Example of Extracting Measured Data This shows how to count bit numbers in the MX118. With Big Endian, from the start of the data field, starting with the msb of the MSB, bit numbers decrease in units of bytes or bits from left to right. The first bit number of the data field is always 63. For Llittle Endian, from the start of the data field, starting with the msb of the LSB, bit numbers increase in units of bits from right to left, and in units of bytes from left to right. The first bit number of the data field is always 7. Data Field Length = 1 Byte For Big Endian: Available start bit position settings: 56 (64-Bit Length) bit Byte 7 lsb For Little Endian: Available start bit position settings: 0 (8-Bit Length) bit Byte 0 lsb Data Field Length = 2 Bytes For Big Endian: Available start bit position settings: 48 (64-Bit Length) bit Byte 7 Byte 6 lsb For Little Endian: Available start bit position settings: 0 (16-Bit Length) bit Byte 0 Byte 1 lsb Data Field Length = 4 Bytes For Big Endian: Available start bit position settings: 32 (64-Bit Length) bit Byte 7 Byte 6 Byte 5 Byte 4 lsb For Little Endian: Available start bit position settings: 0 (32-Bit Length) bit Byte 0 Byte 1 Byte 2 Byte 3 lsb 39

40 Data Field Length = 8 Bytes For Big Endian: Available start bit position settings: 0 (Bit Length-1) bit Byte 7 Byte 6 Byte 5 Byte 4 Byte 3 Byte 2 Byte 1 Byte 0 lsb For Little Endian: Available start bit position settings: 0 (64-Bit Length) bit Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 lsb The following example shows how to count start bit positions in the MX118. When placing a data with data field length of 8 bytes, and a data with a 16-bit bit length Data 1: 3 rd and 4 th byte from the left Data 2: 7th and 8th byte from the left 1Byte 1Byte 1Byte 1Byte 1Byte 1Byte 1Byte 1Byte Start bit positions For Big Endian Data 1 position is byte 4 and 5, and start bit position is 32. Data 2 position is byte 0 and 1, and start bit position is 0. Data 1 16 bits Data 2 16 bits Byte 7 Byte 6 Byte 5 Byte 4 Byte 3 Byte 2 Byte 1 Byte 0 Start bit position Start bit position bit Start bit positions For little Endian Data 1 position is byte 2 and 3, and start bit position is 16. Data 2 position is byte 6 and 7, and start bit position is 48. Data 1 16 bits Data 2 16 bits Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Start bit position bit Start bit position Data measured Start bit 40