Cause : Topology: Actual topology changed. The device target topology (p0099) does not correspond to the device actual topology (r0098).

The fault only occurs if the topology was commissioned using the automatic internal device mechanism and not using the commissioning software.

Fault value (r0949, decimal interpretation): Only for internal Siemens troubleshooting.

See also: r0098 (Actual device topology), p0099 (Device target topology)

Remedy: One of the following counter-measures can be selected if no faults have occurred in the topology detection itself:

If commissioning is still not completed:

- carry out a self-commissioning routine (starting from p0009 = 1).