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A
Amin_Essity3-Newcomer
3-Newcomer
November 13, 2023
Solved

How to address a string in Allen-Bradley Control Logix driver in PTC Kepware

  • November 13, 2023
  • 2 replies
  • 5597 views

I am using the Industrial Connectivity with PLC Rockwell and I have some TAGs type REAL/FLOAT which are working. when I try to add a TAG type String, i got the below error

 

Unable to read tag. Controller tag data type unknown. Tag deactivated. | Tag address = 'HMI.FORMATHND.PRODUCINGNAME', Data type = 0XFCE.

 

can someone help with that?

 

 

 

Best answer by SlidingDownhill

add the number of characters you want to the end of that string, i.e.  .DATA/20  or  .DATA/82

2 replies

V
24-Ruby III
VladimirN24-Ruby III
24-Ruby III
November 14, 2023

Article - "Error "<DEVICE_NAME> | Unable to read tag. | Tag address = '<TAG_ADDRESS>', CIP Error =0XF Extended error = 0000." in PTC Kepware products": https://www.ptc.com/en/support/article/CS375396

    A
    Amin_Essity3-NewcomerAuthor
    3-Newcomer
    November 14, 2023

    Hello, 

     

    Thank you for the answer. This doesn't help. i have the same issue. see the screenshot!

     

    Amin_Essity_0-1699951543272.png

     

      S
      SlidingDownhill12-Amethyst
      12-Amethyst
      November 14, 2023

      What does the tag address look like?

      Strings in AB have 2 parts, DATA and LEN. I expect you have to append '.Data' to the strings tagname 

        A
        Amin_Essity3-NewcomerAuthor
        3-Newcomer
        November 20, 2023

        Hello, 

        see below. yes it includes Length and data. I want to see the de text. if i use Data or len then i see just a value. how can i transform this to the text (string)?

        Amin_Essity_0-1700475599390.png

         

        S
        SlidingDownhill12-AmethystAnswer
        12-Amethyst
        November 20, 2023

        add the number of characters you want to the end of that string, i.e.  .DATA/20  or  .DATA/82

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