Communication Impossible (No Link Parameters)

What does F839 mean?

Communication is impossible because link parameters are not configured or are invalid, specifically indicated by SW0056 being set to 0. This means the station is likely disconnected from the network.

• Link parameters are missing or invalid
• SW0056 parameter is set to 0
• The station is disconnected from the network

Click steps to track your progress.

1. 1

   Review the link parameter settings and ensure they are correctly configured

2. 2

   Verify the value of SW0056 and ensure it is set appropriately for communication

3. 3

   Investigate the reason for the station being disconnected from the network