PROFINET Maintenance Demand Alarm

What does PNIO_MAINTENANCE_DEMANDED mean?

This alarm indicates a high-priority maintenance demand from at least one PROFINET device that currently has an active connection. It signifies that a device requires immediate attention to prevent future issues or ensure optimal operation. The specific device can be identified using the RALRM diagnostic block.

• A connected PROFINET device is signaling a high-priority 'maintenance demand' alarm.

Click steps to track your progress.

1. 1

   Utilize the RALRM diagnostic block in the application program to precisely identify the PROFINET device initiating the maintenance demand.

2. 2

   Consult the documentation for the identified PROFINET device to understand the specific cause of the maintenance demand.

3. 3

   Perform required maintenance actions on the identified PROFINET device.