Comms Digital Input - ABB SM1000 User Manual

Videographic Recorders
SM1000 and SM2000

4.2.4 Comms Digital Input

Note. This tab is displayed only if 'Implementation' is set to 'Modbus TCP Client' – see Section 4.2.1, page 13.
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Select the comms digital input to hold the data from the
nominated slave device.
Select the communications protocol to be used by the
instrument to communicate with the 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 'RTU'.
Enter the RTU address assigned to the remote unit (1 to 247).
Notes.
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'.
Enter the IP address assigned to the slave device.
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'.
4 Modbus TCP
IM/SMENET Issue 4