Preprocessor Configuration

To get started, the Modbus preprocessor must be enabled. The preprocessor name is modbus.

preprocessor modbus

Option syntax

Option	Argument	Required	Default
ports	<ports>	NO	ports { 502 }

Option explanations

ports

This specifies on what ports to check for Modbus messages. Typically, this will include 502.

Syntax

    ports { <port> [<port>< ... >] }

Examples

    ports { 1237 3945 5067 }

Note: there are spaces before and after `{' and `}'.

Default configuration

    preprocessor modbus