280 PROFIsafe
Fault tracing
Reading diagnostic messages
You can read the PROFIsafe diagnostics messages from:
1. the Event logger of the Drive composer pro PC tool,
2. the Event log of the ACS-AP-x assistant control panel and
3. the error buffers of the PLC system. In this case, make sure that drive parameter
51.21 is set to Enabled (see the drive firmware manual).
ABB AC500-S
In the ABB AC500-S system, you can read PROFINET diagnostics messages from
Control Builder Plus or with a separate PNIO_DEV_DIAG function block in the “non-
safety” PLC program.
To read the alarm data of the last active alarm from Control Builder Plus:
1. Select FENA_21.
2. On the Diagnostics for Profinet slave tab, select Refresh to read diagnostics
messages.
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