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    • M

      Read/Write Modbus
      • MikeyH

      9
      0
      Votes
      9
      Posts
      1787
      Views

      M

      Hi Tomas,

      Thank you for your help. I understand how it works now, what you provided is where i wasn't sure what to do. It makes sense to me now.

      Cheers

      Mike

    • jaroslav_sobota

      Serial ports on Wago PFC200
      • jaroslav_sobota

      2
      0
      Votes
      2
      Posts
      938
      Views

      R

      Hi Jaroslav,

      That explains why i could not find it. I will look into a TCP version or another PLC with more serial ports.

      Thanks,
      Richard

      PS
      I now have a slightly used 750-652 for sale 😉

    • M

      Modbus on TTL Advice
      • MikeyH

      3
      0
      Votes
      3
      Posts
      795
      Views

      M

      Hi Jaroslav,

      I will email you the documentation for the device.

      Cheers

      Mike

    • R

      Wago Modbus - Port name + Address > 65535
      modbus rtu wago • • rluteijn

      4
      0
      Votes
      4
      Posts
      1092
      Views

      jaroslav_sobota

      Hi Richard,
      there are various "simplifications", using various offsets to distinguish between the four tables of data. For Holding registers, the most typical is offset of 40000, but as you already noticed, this is no standard.

      Best regards,
      Jaroslav

    • M

      Echo on RS485
      • MikeyH

      14
      0
      Votes
      14
      Posts
      1117
      Views

      M

      Thank you Jaroslav, you learn something every day! That will help more than you know with all of my projects. especially ones with process models 🙂

      Cheers

      Mike

    • E

      Two Modbus instances on one controller solves device incompatibility!
      • enovikoff

      2
      0
      Votes
      2
      Posts
      107
      Views

      jaroslav_sobota

      Hello,
      thanks for sharing your experience and findings. There's nothing to add, only that from the nearest release the REXYGEN compiler will issue a warning when two drivers use the same configuration .rio file.

      Jaroslav

    • B

      SOLVED Reading and Writing 4 byte floating point from modbus
      • brunofporto

      7
      0
      Votes
      7
      Posts
      288
      Views

      B

      @reitinge Thank you very much! That is what I am doing right now 🙂 It works good enough.

    • A

      Modbus RTU multiple read
      modbus rtu passive • • Apollo

      8
      0
      Votes
      8
      Posts
      277
      Views

      cechurat

      @apollo I understand. Just keep in mind that the Passive feature is available both at Modbus RTU and Modbus TCP.

      Kind Regards,
      Tomas

    • M

      Strange Modbus Behavior
      diagnostics modbus rtu • • MikeyH

      6
      0
      Votes
      6
      Posts
      241
      Views

      cechurat

      @mikeyh Hi Mike,

      thanks for update. Could you please try to test one Raspberry Pi with certain SD card (i.e. OS) and check with working Monarco HAT and then switch the one failing so we can say it is Monarco HAT failure afterwards?

      Thanks for cooperation.

      Kind Regards,
      Tomas

    • R

      SOLVED Read and Write Modbus register on HMI
      • RexPeter

      4
      0
      Votes
      4
      Posts
      309
      Views

      R

      @rexpeter
      Hi Peter,
      no problem. I'm glad, it's works.

      Cheers,
      Jan

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