Not Supported Protocol Variant

What does E3-8480 mean?

The I/O bus module has detected a communication protocol variant that is not supported. This indicates an incompatibility in communication standards between the module and other devices, preventing proper data exchange and potentially halting the module's operation. This is a configuration or firmware mismatch.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Update the module's firmware if a newer protocol variant is required and an update is available.

2. 4

   Consult the product manual for supported communication protocols and versions.