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Using UOP signals Via Modbus TCP

  • Valenti
  • December 20, 2023 at 10:54 AM
  • Thread is Unresolved
  • Valenti
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    • December 20, 2023 at 10:54 AM
    • #1

    Hi, I'm new to the forum. I'm trying to communicate a Fanuc Robot with R30iA controller and V7.7 Firmware with Modbus TCP to a Siemens 1512C (all real hardware, no simulation). With DI/DO I can do it, but with UI/UO signals I can't. Reading the manual seems that Modbus only works with D//DO and GI/GO, but if I map the UOP signals to rack 96 (Modbus) it allows me. Do you know if it is possible? Thanks in advance.

  • MOM December 20, 2023 at 10:55 AM

    Approved the thread.
  • DS186
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    • December 20, 2023 at 11:27 AM
    • #2

    Mapping the UIs and UOs to rack 96, slot 1 should also work.

  • HawkME
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    • December 20, 2023 at 2:40 PM
    • #3

    UI/O, UI/O, and GI/O are all the same as far as configuration. They are simply a point or range of points of IO.

  • DaveP
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    • December 22, 2023 at 4:21 PM
    • #4

    You can also map the UI/UO to Flags and then use background logic to assign DI/DO to the flags. One nice thing is that Flags can be mapped as an input or an output.

  • Valenti
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    • January 17, 2024 at 7:23 PM
    • #5

    Thanks a lot, I didn't connect till now and I haven't seen your answers. I solved it. My problem was that in Modbus TCP configuration I had only 2 input and output words and I wanted to map 16DI/DO plus UI/UO which are 18 and 20... so more that 32. Finally I put 3 words and problem solved.

  • Timmi7994
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    • March 6, 2025 at 7:52 PM
    • #6
    Quote from Valenti

    Hi, I'm new to the forum. I'm trying to communicate a Fanuc Robot with R30iA controller and V7.7 Firmware with Modbus TCP to a Siemens 1512C (all real hardware, no simulation). With DI/DO I can do it, but with UI/UO signals I can't. Reading the manual seems that Modbus only works with D//DO and GI/GO, but if I map the UOP signals to rack 96 (Modbus) it allows me. Do you know if it is possible? Thanks in advance.

    Hej, maybe you are able to support me with simmilar issue?

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Thread Tag Cloud

  • abb
  • Backup
  • calibration
  • Communication
  • CRX
  • DCS
  • dx100
  • dx200
  • error
  • Ethernet
  • Ethernet IP
  • external axis
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  • I/O
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