counter not counting encoder over RTSI

[Martin.D]

Hi all,

I have a PCI-7358 (motion card) and a PCI-6602 (counter timer) both connected together with a RTSI cable. I have then configured an axis in MAX to route the encoder over RTSI-0 (Phase-A) & RTSI-1 (Phase-B). Then I added and configured the RTSI cable in MAX and added the PCI-6602 as its device (see MAX-1.jpg). Then with the appropriate motor / axis spinning I run the PCI-6602 test panel and configure as Edge counting and RTSI0 (see MAX-2.jpg), then I expect to see the counter increment – but it does not. Could it be something to do with mapping on the counter card? Am I missing something? Any ideas?

-Martin

Message Edited by Martin.D on 06-05-2007 08:22 PM

[Martin.D]

Finally figured this out. For some reason it works on axis 1-6 but not 7 & 8. Could be a bug, one of my settings on those axis (don't think so) or it could be documented some where that I missed. Anyway after shifting all my axis around it works well.

-Martin

[Kurt_NISalesEngineer]

Hi Martin,

I am pleased that you have manged to get the setup working on axis 1-6. I haven't as yet discovered any documentation to suggest why this wouldn't work with axis 7 and 8. I will however investigate this further and will keep you posted. I believe it could be as you say to do with device mapping / routing. I will forward this to one of our product support engineers in the states to see if they can shed any light on this.

Thanks,

Kirtesh Mistry

Applications Engineer

National Instruments UK & Ireland

[Kurt_NISalesEngineer]

Hi Martin,

We were finally able to get all the equipment needed to replicate this issue.  My colleague in the states saw the exact behavior that you described about not being able to route Axis 7 and 8 to RTSI in MAX. This has been documented and will be investigated in due course.

In the meantime, if you do need to eventually route Axis 7 and 8's signals to RTSI, then you can do this programatically in LabVIEW using the Select Signal VI.  When we use this VI to route Axis 7 and 8's Phase A signal to RTSI, it works correctly, and we see the PCI-6602's test panels increment when counting the corresponding RTSI line.

Thanks,

Kirtesh Mistry

National Instruments UK & Ireland