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5.5
Connection of Communication Modules
Communication modules are used for communication between the SCS and external devices.
ProSafe-RS provides the Modbus slave communication and the subsystem communication.
An external device acts as a Modbus master and SCS acts as a Modbus slave in the former,
while external devices act as Modbus slaves and SCS acts as a Modbus master in the latter.
This section explains how to connect ALR111 and ALR121 serial communication modules,
and ALE111 Ethernet communication module to external devices.
<5.5 Connection of Communication Modules >
5-34
IM 32Q06C10-31E
4th Edition : Jan.30,2015-00