Which products are affected?
9300 vector 0.37…90 kW SW ≤ V7.0
What happens?
When transferring a parameter set, which has been created for a device with SW ≤ V2.1, to a device with SW > V2.1 the function blocks on the last positions of the processing list may not be transferred. In the present case the last function block in the processing list (AOUT2 on position 50; C0465/50 = 75) is not transferred. In the target system position 50 of the processing list is empty (C0465/50 = 0). A subsequent manual entry of the function block into the processing list is refused although according to the display of the 'Processing list' dialog the Global Drive Control has enough CPU time available.
When does the problem occur?
The behaviour may occur in case of parameter sets with a high utilisation of the CPU time. CPU times longer approx. 580 µs (which corresponds to an utilisation of approx. 95 %) are affected by this behaviour.
In case of SW > V2.1 the CPU time of some function blocks saved in the firmware has been prolonged, e. g.:
- FB NSET: CPU time is now 76 µs instead of previously 70 µs
- FB AINx: CPU time is now 14 µs instead of previously 11 µs
- FB AOUTx: CPU time is now 15 µs instead of previously 12 µs
Moreover, the overall available CPU time now amounts to 600 µs instead of previously 610 µs.
These adaptations of the CPU time are not indicated by the Global Drive Control.
Possible diagnostics?
The actually available CPU time is indicated in the online mode under display code C0466.
Short-term measures/recommendations?
There is no workaround available. The user only has the possibility to check the parameter set for the function blocks which are not required and to delete them from the processing list.
Evaluation:
This issue is an incompatibility between SW V2.1 and following firmware version. It may especially occur when service becomes necessary and if a device with SW ≤ V2.1 is exchanged for a device with a higher firmware version. This incompatibility will be eliminated with a more recent software version.
Figure: Global Drive Control display: Dialog
