IDEC FC6A-C16K1CE

FC6A S ERIES M ICRO S MART A LL - IN -O NE T YPE C OMMUNICATION M ANUAL FC9Y-B1730 6-29
6: M ODBUS C OMMUNICATION
Modbus RTU pass-through function specifications
Supported Port Ethernet Port 1 Port 1
Communication Mode Modbus TCP server (slave) Modbus RTU master
Enable/disable
Settings
Configure in Function Area Settings.None
Specifying the Pass-
through Destination
Specify the Modbus RTU slave for pass-through with the Modbus TCP communication frame unit ID.
• When the Modbus RTU pass-through function is enabled
Unit ID (0 to 254): Modbus RTU pass-through is performed.
Unit ID (255): Processed by the Modbus TCP server.
• When the Modbus RTU pass-through function is disabled
Unit ID (0 to 255): Processed by the Modbus TCP server.