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SM500F

Field mountable paperless recorder 7 Configuration

IM/SM500F Rev. Z 129

7.11.3 Comms Digital Input

Note. This tab is displayed only if only if 'Implementation' on the 'Modbus TCP' tab is set to 'Modbus

TCP Client' – see page 125.

Select the comms digital input to hold the status from the nominated

slave device.

Select the communications protocol to be used by the recorder to

communicate with a nominated slave device:

None – comms digital channel unused

TCP – Modbus Transmission Control Protocol

RTU – access a Remote Terminal Unit (RTU) via Modbus TCP

gateway

Note. Displayed only if 'Protocol' is set to 'TCP'.

Enter the IP address assigned to the slave device.

Note. Displayed only if 'Protocol' is set to 'RTU'.

Enter the RTU address assigned to the remote unit (1 to 247).

Note.

 Displayed only if 'Protocol' is set to 'RTU'.

 This setting is always required to access a RTU via Ethernet.

Set the IP address for the Modbus TCP gateway required to

communicate with the RTU.

Note. Displayed only if 'Protocol' is set to 'TCP' or 'RTU'.

Enter the register number to be read or written to in the slave device.

Note. Displayed only if 'Protocol' is set to 'TCP' or 'RTU'.

Select the register type, 'Input Status' or 'Coil Status'.

ABB SM500F User Manual

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