GE Fanuc 90 30 Alarm trigger tracing

Timbelfast · Dec 7, 2019

Hi, we have a plant that runs with a GE Fanuc 90-30 and I am trying to trace what is triggering a 'General Fault' alarm to the site SCADA system.

I don't have access rights to view the live PLC program when it is running, but I do have the code files.

Would someone be able to send me these in a printed pdf / wordpad format so we can see what part of the process could be generating this particular alarm?

parky · Dec 7, 2019

Would help if you added the file so somebody could create the pdf

Timbelfast · Dec 7, 2019

Parky, prefer to do by PM if possible as I don't want the code on an open forum.

parky · Dec 7, 2019

OK, however I cannot help you as I do not have the software i'm sure someone here will help.

Steve Bailey · Dec 7, 2019

Timbelfast, you can send the backup file to me at stephen dot bailey2 at Verizon dot net. If you know, please tell me if it is a Logicmaster, Versa Pro or Proficy Machine Edition project and if Proficy Machine Edition, which version.

Timbelfast · Dec 7, 2019

Steve, you have mail

Steve Bailey · Dec 7, 2019

Tim, so do you.

NetNathan · Dec 8, 2019

Could you explain the 'General Fault' alarm to the site SCADA system a little more?
If it is picked up by the SCADA system, it should have a tag name AND an IO reference in the plc?
Is the tagname 'General Fault'?
Is there an "IO address" associated with it?

Timbelfast · Dec 8, 2019

NetNathan said:
Could you explain the 'General Fault' alarm to the site SCADA system a little more?
If it is picked up by the SCADA system, it should have a tag name AND an IO reference in the plc?
Is the tagname 'General Fault'?
Is there an "IO address" associated with it?

NetNathan,

Now that I have the ladder logic I can see that there are about 41 inputs in series with the Fault output that can generate this Fault output.

This system in particular is a standalone GE PLC with it's on Iconics SCADA.

Our separate site SCADA receives an alarm via a solo Input when the Fault relay is 'True'.

I think the way forward is have the Iconics SCADA configured to display alarms, as at the minute we can only view a Process Mimic screen; or have the 3rd party contractors who maintain the plant gain live access to the GE PLC to view the potential fault input in a live monitor mode. They can just about carry-out a filter change so this maybe beyond their capability.

NetNathan · Dec 8, 2019

Timbelfast said:
NetNathan,

Now that I have the ladder logic I can see that there are about 41 inputs in series with the Fault output that can generate this Fault output.

This system in particular is a standalone GE PLC with it's on Iconics SCADA.

Our separate site SCADA receives an alarm via a solo Input when the Fault relay is 'True'.

I think the way forward is have the Iconics SCADA configured to display alarms, as at the minute we can only view a Process Mimic screen; or have the 3rd party contractors who maintain the plant gain live access to the GE PLC to view the potential fault input in a live monitor mode. They can just about carry-out a filter change so this maybe beyond their capability.

Kind of odd....looking at 41 alarms as 1 general alarm. Pretty hard to know what the true alarm actually is.

parky · Dec 9, 2019

Probably find that it was a general fault alarm for a lamp on the panel & the Scada has been added. This suggests that the Scada is not connected via coms to that plc.

GE Fanuc 90 30 Alarm trigger tracing

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