RSLogix 5000 SQO Instruction

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  • January 12, 2018 at 9:12 pm #1033
    Anonymous
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      Hi, I’m struggling with a problem around an SQO instruction. I’m not sure what is going on but I’m NOT always getting the correct output into my destination word? I have an array of DINT setup that moves the values into a destination word when a switch activates. Any ideas? Thanks.

      January 12, 2018 at 9:16 pm #1034
      PLCGurutfgmedia_admin
      Keymaster

        Hi Chris and welcome back!

        Have you checked to make sure your SQO instruction is not exceeding the amount of elements in the source array?

        Check out my example image, since there is no position 10 in the sqo_test_source tag the data in the sqo_test_dest tag reads (2075180). This is basically garbage data. Care should be taken when setting up an SQO Instruction position, not to exceed the amount of elements in a Source array.

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        January 12, 2018 at 10:04 pm #1038
        Anonymous
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          That was it. Thanks!

          January 12, 2018 at 10:16 pm #1041
          PLCGurutfgmedia_admin
          Keymaster

            Great!

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