ethernet communication fault indication

[ianbuckley 0]

I have posted about the Ethernet communication between a CompactLogix and a PowerFlex drive already. We settled on having the start/stop through a relay contact, but setting the speed reference and receiving feedback information through Ethernet. I would like to display on the Panelview that the communication link with the drive is not working, but I can't seem to find a tag or reference bit (equivalent to an S file) that tells me that the condition exists. I know you can set the drive to fault and/or a major fault on the controller on comm. failure, but I am not sure we need to stop the machine because the data is not being exchanged (that is what I was trying to avoid by using an input for start/stop). I just want to tell the operator that there is an issue that should be fixed. I am sure there must be documentation about this somewhere, but I am having trouble finding it. Can someone point me in the right direction? Thanks, Ian

[TimWilborne 108]

The Powerflex is setup in the IO configuration? Look at the GSV, Module, entry status (I'm going off of memory but pretty sure that is the correct GSV)

[ianbuckley 0]

I have posted the screen shot of logix5000 where I think you are referring. How do I set up a tag to reference this so I can add the condition to my HMI message queue?

[TimWilborne 108]

I'm sorry, I told you the wrong attribute. I used FaultCode.

[ianbuckley 0]

Thanks for the tip. Following up on the GSV command, it looks like you can check for faults on the module overall using the method you showed. I think you can check just for communication status using the GSV of the EntryStatus as well as long as you mask the last 4 bits if I am following the help file correctly. This snippet shows checking both ways. Thanks again.

[TimWilborne 108]

For some reason I went away from using the entry status. It may have been because I was passing the fault code on if it wasn't equal to zero...not sure. I'm not sure if there is any performance advantage to either

[CanaanP 1]

Dunno if this helps, but this is how I use GSV in my program to check the status of remote AENT modules...