EFB comm loss

What does 6681 mean?

A communication break has occurred in the embedded fieldbus (EFB) communication link. This means the drive has lost its connection with the fieldbus master, leading to a loss of control and monitoring capabilities via the EFB, which can halt automated processes.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Verify termination resistors and addressing on the fieldbus network.