User manual

CONFIGURATION
11.2.2 Modbus client gateway
This gateway allows to
connect a serial modbus
master to the serial
interface of the IPRS.
• Select the modbus menu and then “modbus client” menu; enable the
“modbus client” gateway and set up the parameters as follows :
“Port selection” parameter :
Select the serial port COM 1 or COM2.
If the modbus server gateway is assigned to one serial COM port, it
cannot be assigned to the other one.
« ASCII / RTU protocol » parameter
:
Select the right option
“Inter-character gap” parameter
:
Set up the maximum delay the gateway will have to wait between a
received character of a modbus answer frame and the following character
of the same frame.
“TCP inactivity Timeout” parameter
:
Set the time the gateway will wait before disconnecting the TCP link if no
characters are detected.
IPRS serial gateway User guide ref. 9018409-01
Page 29