5 Modbus plugin

Overview

This section lists parameters supported in the Modbus Zabbix agent 2 plugin configuration file (modbus.conf).

Note that:

  • The default values reflect process defaults, not the values in the shipped configuration files;
  • Zabbix supports configuration files only in UTF-8 encoding without BOM;
  • Comments starting with "#" are only supported at the beginning of the line.

Parameters

Parameter Mandatory Range Default Description
Plugins.Modbus.Sessions.<SessionName>.Endpoint no Endpoint is a connection string consisting of a protocol scheme, a host address and a port or serial port name and attributes.
<SessionName> - define name of a session for using in item keys.
Plugins.Modbus.Sessions.<SessionName>.SlaveID no Slave ID of a named session.
<SessionName> - define name of a session for using in item keys.
Example: Plugins.Modbus.Sessions.MB1.SlaveID=20
Note that this named session parameter is checked only if the value provided in the item key slave ID parameter is empty.
Plugins.Modbus.Sessions.<SessionName>.Timeout no Timeout of a named session in seconds.
<SessionName> - define name of a session for using in item keys.
Example: Plugins.Modbus.Sessions.MB1.Timeout=2

If you need to set the request execution timeout (how long to wait for a request to complete before shutting it down), use the item configuration form.

See also: