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How to read External Access of Tags and Usage of UDTs? #426
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This is not exposed in libplctag. Quickly browsing the Rockwell documentation there was some info on this: |
Hi. I looked at pages 39 and 48 of the documentation If I understand correctly, the information I wanted to access is not available via the Thank you anyway! |
Maybe it is accessible via Source: https://docs.pycomm3.dev/en/latest/_modules/pycomm3/logix_driver.html#LogixDriver.get_tag_list (scroll down to function get_instance_attribute_list_service) |
Thanks for the tip. This looks interesting. I wonder if just always requesting attribute 10 will work? Each attribute has a separate status response, so it might work as long as we can see that asking for attribute 10 fails on some systems and the others succeed. I wonder why the pycomm3 author is pulling attribute 6? I found attribute 8 by experimentation. |
It would be really nice to be able to read tags that are based on UDTs. |
Hello,
is it possible to read the External Access (Read/Write, Read Only, or None) of Variables and Usage of UDTs? (Input, Output, InOut, Local) of UDTs?
Tags in Logix Designer:
UDTs in Logix Designer:
Thanks!
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