0980 ESL 390-1x1
Current behaviour: After switching of the UL power supply from the system chain, an error in the PLC-system status is received.
Expected behaviour: After switching off the UL power supply from the system chain, PLC “Diagnostic” error should not be displayed on the PLC error LED
Configuration: Network Topology
Belden Industrial Switch
0980 ESL 700
0980 ESL 390-1x1
Please find in the following section the system setup from the Lion-P web page:
Project simulation in TIA portal
When you choose to deactivate the UL source, it will affect all actors in the downstream of the network.
Therefore it is important to divide the sources of errors into two types: the error due to the absence of the UL source and the error due to the absence of the UL source at the peripheral points of the automation infrastructure.
Here we build up a network with all the UL power supply. NO ERROR APPEARS.
Now we switch off the UL Power Supply for both the modules
We notice that module 0980 ESL 390-1x1 shows an error. These are the reasons:
- The module provides an option to manage the error propagation for UL upstream power supply
- The module provides the option to manage the propagation UL Power Supply error for downstream components
Possible workaround description for 0980 ESL 390-1x1
For this module, you have these two options which you can check:
The option 1 deactivates the error propagation for UL Power Supply in upstream.
The option 2 deactivates the error propagation for UL Power Supply in the downstream
This could probably be a workaround for your problem.
Other suggested setting configurations with relative tested behaviour
No Diagnosis without UL and activated Output
Diagnosis without UL only for activated Output
UL diagnosis when off or below 18V