User manual

CONFIGURATION
Page 28 User guide ref. 9018409-01 IPRS serial gateway
Select the period at which the gateway will send request to the slaves PLC.
“Timeout waiting for the answer” parameter:
Set up the timeout the gateway has to wait for the answer of the modbus
slave answer.
“Local retry” parameter :
Set up the number of times the gateway will repeat a request before
declaring a failure.
“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.
“Modbus slave address” parameter:
Choose “specified by the modbus TCP client” , if the address of the slave
PLC must be decoded by the gateway from the modbus TCP frame
coming from the client.
Otherwise, specify the modbus address of the slave PLC; in that case
only one slave can be connected to the RS232 serial interface.
“TCP inactivity Timeout” parameter :
Set the time the gateway will wait before disconnecting the TCP link if no
characters are detected.
“TCP port number” parameter :
Set the port number the gateway has to use.
If the Raw TCP client gateway is assigned to both serial COM ports, the
TCP port numbers must be different on each port.