ISaGRAF 038

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  Q: Setting I-7188EG/XG 's COM3 as Modbus RTU slave port

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  Ans:  

  I-7188EG/XG have to install X5xx(with communication).
  COM3 of I-7188EG/XG supports Modbus RTU slave protocol by user define since the I-7188EG driver version of 2.10 &
  I-7188XG driver version of 2.08 . Please visit the web-site to get the controller new driver version.

  Web-site: http://www.icpdas.com/products/PAC/I-8000/isagraf.htm

  For I-7188XG example:
  1. Create a file folder named "7188XG" in your hard drive. For example, "c:\7188XG".

  2. Copy \Napdos\ISaGRAF\7188XG\Driver\7188xw.exe, 7188xw.ini from the CD_ROM into your "7188XG" folder.

  3. Run "\7188XG\7188xw.exe" in your hard drive. A "7188xw" screen will appear.

  4. Link from COM1 or COM2 of your PC to COM1 of the I-7188XG controller by a RS232 cable.

  5. Power off the I-7188XG controller, connect pin "INIT*" to "GND", and then power it up.

  6. If the connection is Ok, messages will appear on the 7188xw screen.
         ICP_DAS MiniOS7 for I-7188xB Ver. 2.00 build 001,May 16 2003 17:27:38
         SRAM:512K, FLASH MEMORY:512K
         [CPU=RDC 8820-D]
         Serial number= 5A 5A 5A 5A 5A 5A 5A 5A
         I-7188XB>

  7. Type "isa7188 *x=n", Setting COM3 Baudrate and defined as Modbus RTU,n = 0~9,
           default value is not Modbus RTU
         I-7188XB> isa7188 *x=4
         Com3 is defined as Modbus RTU

       The setting for com3 baudrate are as follows : 1=2400,2=4800,3=9600,4=19200,
       5=38400,6=57600,7=115200,8=300,9=600,0=1200

  8. Type "isa7188e *x=f" to free the COM3 of I-7188EG.
         I-7188XB> isa7188e *x=f
         Com3 is free now

  9.Press ALT_X to exit "7188x" and close the DOS SHELL, or
     COM1/COM2 of the PC will be occupied.

  10. Remove the connection between "INIT*" - "GND", reset the
        I-7188XG controller.

Written by Spike Huang 

Date:2006/05/15