Types of Modbus TCP Slave Configuration Records

The configuration file may contain the following types of records:

IP address parameters

Defines the serial communications port and settings.

Trace log parameters

Specifies state (on/off) of protocol stack diagnostics logging.

Modbus register limits

Defines the range of valid values for a Modbus analog register (memory type 3X or 4X).

Register mapping

Defines a mapping between a CIMPLICITY point and a Modbus data address.



Any line beginning with one or more pound signs (#). Ignored by the Modbus/TCP Slave Interface.


Blank lines

Ignored by the Modbus/TCP Slave Interface.

More information

Step 1. Edit the Modbus TCP Slave configuration file.