Copyright March 2002 by ICP DAS CO., LTD. All right reserved. Trademark: Products, names and trade names appeared belongs to their respective owner. This document describe that COM3 or COM2 of i-7188EG supports Modbus RTU slave protocol by user define since their driver version of 3.03 1. Create a file folder named "7188EG" in your hard drive. For example, "c:\7188EG ". 2. Copy \Napdos\ISaGRAF\7188EG \Driver\7188xw.exe, 7188xw.ini from the CD_ROM into your "7188EG" folder. 3. Run "\7188EG\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-7188EG controller by a RS232 cable. 5. Power off the I-7188EG 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-7188E Ver. 2.00 build 001,May 16 2003 13:32:53 SRAM:512K, FLASH MEMORY:512K [CPU=Am188ES] Serial number= 5A 5A 5A 5A 5A 5A 5A 5A i-7188E> 7. Type "isa7188e *x=pn", Setting COM3 Baudrate and defined as Modbus RTU,'PB' = 30~39, Setting COM2 Baudrate and defined as Modbus RTU,'PB' = 20~29, COM2 and COM3 default value is not Modbus RTU i-7188E> isa7188e *x=34 Com3 is defined as Modbus RTU The setting for 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 second COM port of I-7188EG. i-7188E> isa7188e *x=f COM2/COM3 port is not as Modbus Slave port 9.Press ALT_X to exit "7188xw" and close the DOS SHELL, or COM1/COM2 of the PC will be occupied. 10. Remove the connection between "INIT*" - "GND", reset the I-7188EG controller.