PROFIsafe watchdog timed out

What does 16153 mean?

The PROFIsafe watchdog timer for the I/O module has expired, indicating a loss of cyclic communication or a prolonged period without expected safety messages from the F-Host. This can be due to network delays or a module responsiveness issue. This is a severity 3 error.

• The PROFIsafe safety communication has not been refreshed within the expected time interval.
• Failure to receive periodic safety heartbeats from a connected device.
• Communication interruption affecting timely safety updates.
• Device offline or experiencing communication issues.

Click steps to track your progress.

1. 1

   Restart the I/O module to re-establish communication.

2. 2

   If the error persists, increase the configured PROFIsafe watchdog time in the F-Host settings.