Manual

Changing Conext ComBox Settings
975-0679-01-01 Revision D 3–25
Modbus Communications
All of the RS 485 and Modbus settings for the Conext ComBox can be changed as
necessary. The default value for the Modbus TCP Port is 502 and the Server Modbus
Address is 201.
Select Listening in Modbus TCP Enabled to enable Modbus communication.
Note:
When writing a character string using function code 0x10 (Write Multiple
Registers), the NUL terminator MUST be written or the string will not be stored.
When writing 32-bit modbus registers, both 16-bit registers which make up the
32-bit value must be written in order to store the data.
Conext_ComBox_Owners_Guide.book Page 25 Monday, October 21, 2013 10:00 AM