RMS1 – GR User’s Manual
Exemys
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Modbus master (I/O Tunnel)
The Modbus master mode allows you to create a digital I/O tunnel using two RMS1-GR devices. Module digital inputs
will be replicated on the other’s outputs and vice versa.
These are the requisites to make this configuration work.
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2 RMS1-GR, set up as Master and the other as slave (master disabled)
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Same serial port configuration (baud rate, parity, Modbus type)
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Same Modbus ID
On the master module you can also set the message time out and time between polls. Typically you won’t have to
modify these values if the modules are connected using a wire (direct RS232 or RS485 connection)
RS232
