IAI America RCM-GW-CC - Manual (Page 94)

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8. System build-up
It is necessary to set as follows in order to make the controller communicate with the CC-Link Master (PLC)
and controller through the gateway unit.
[1] Controller setting for SIO communication (Modbus communication) between the gateway unit and
controller
[2] Setting of PLC side and gateway unit for CC-Link communication between the PLC and gateway unit
8.1. Communication setting for controller
It is necessary to set as follows in order to make the controller communicate with the gateway unit.
(1) Set so as not to duplicate axis No.
Note that a range of settable axis No. depends on the operation mode of the gateway unit.
(2) Parameter setting
[1] Set the parameter No. 16 “SIO communication speed” to “230400” (230.4 kbps).
SIO communication cannot be performed in a setting other than 230.4 kbps.
[2] Set the parameter No. 17 “Slave station transmitter activation minimum delay time” to “5” or less.
When attempting to execute the communication cycle at the fastest speed, set it to “0.”