GRP-520 User Manual, V1.30, Aug. 2015
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Configure “Main Info.” Tab.
Set “Server Address” and “Server Port” of your server that running RTU Center.
Set Station ID of this GRP-520, and don’t be the same with another RTU device.
Set “Data Update Period” and “Heartbeat Period”. (0
disable)
Configure the parameters of RS-485 for Modbus/RTU.