Explore the latest product updates and best practices at our hybrid Checkmk Conference #12 from June 16-18, 2026 – Register here

Check manual page of cmciii_io

Rittal CMC-III IO Units: Status of Input and Output Ports

Included in All Checkmk editions
Source Code License Open Source
Supported Agents SNMP

This check monitors the status of the Input and Output Ports of the Rittal CMC-III IO Units. No limits are set in the check. The state given by the Rittal device is taken as the state of the check as follows:\ The service state is OK when the device status is "OK", "Off", "Closed", or 0 for input ports. The service state is WARN when the device status is "On" or "Open". All other unknown states default to WARN. Additional information such as Logic, Delay, and Relay settings are displayed in the check output but do not impact the service state.

Firmware versions using the MIB of firmware V3.15.20 are supported.

Item

The internal name of the input or output ports

Discovery

One service is created for each input and output port.