Question about tag syntax about pylogix HOT 5 CLOSED

There is no reason that I know of that reading a program scoped tag that is a UDT wouldn't work. I have a program that contains every variation of tag type that I can think of (basic tags, arrays, UDT's, multi-dimensional arrays, UDT Arrays, etc) in both controller and program scope. I typically run a test on that program that reads/writes all of the tags (controller and program scope) before I commit changes.

Could you possibly send me the program? If sending the program is out of the question, maybe you could export the UDT and send it to me, I'll try and run the same test.

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Here's the udt in question, no rush, I was able to get the tag from the top one, which comes from a MOV from the second tag.
UDT_DW_VPROFILE.L5X.txt

Traceback (most recent call last):

  File "~\dw_encoder_troubleshooter.py", line 39, in <module>
    dwx_encoder = ex_read('Program:DW_Fast.DW_VP.INP_DWAEncoderPresentValue')
  File "~\dw_encoder_troubleshooter.py", line 8, in ex_read
    return comm.Read(tag)
  File "C:\Python34\lib\site-packages\pylogix\eip.py", line 90, in Read
    return _readTag(self, args[0], 1)
  File "C:\Python34\lib\site-packages\pylogix\eip.py", line 160, in _readTag
    InitialRead(self, t, b)
  File "C:\Python34\lib\site-packages\pylogix\eip.py", line 1178, in InitialRead
    raise ValueError(cipErrorCodes[status])
ValueError: Path segment error

I ran GetTagList() and saved to a text file. Nothing on that UDT was written to the file. I'll check during the week if any other UDT was read, going on fumes now.
tags_01.txt

This controller has quite a few UDTs but the tag list is just the controller tags. And program tags, as Program:Tag format. I wonder if there's a security setting preventing access to udt tags.

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Looking at your tag list, DW_VP is a controller scoped tag.
edit: in other words, try reading:

DW_VP.INP_DWAEncoderPresentValue

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Did I seriously made that mistake, sorry I come from the Siemens world where everything is a datablock tag. Just tested, and it works fine. Note to self, make sure is not a controller tag in the future.

Thanks for awesome help!

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Haha, no problem, glad it was easy!

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