j0h

IDEC_HMI_Arduino

j0h
May 12th, 2026
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  1. OK when I went to the makespace last night, my HMI code would not connect, and I gave up out of frustration.
  2. The server code hasnt changed!!! ok, but the HMI code DID change.
  3. now, it did seem to work for a few days straight, which was confusing, but I think I have ideas about that:
  4. The Arduino never lost power. The HMI never lost power. the Ethernet was never disconnected.
  5.  
  6. But when I ran the project last night, I messed with that stuff, the HMI / arduino disconnected.
  7. ok, but at that time, suddenly I have the HMI asking for a boat load of registers, adn the PLC doesnt have them.
  8.  
  9. So I think the HMI definition of registers, has something to do with the initialization of the HMI.
  10. I think when it does it after a connection has been established, it doesnt drop the connection unless the connection is dropped.
  11.  
  12. I really want IDEC to service my previous request before I start in with how the HMI initialization actually works.
  13. so ill load the original hmi and see if the thing connects.
  14.  
  15. Then there is the
  16. D0560
  17. D0562
  18. D0564
  19. D0566
  20. D0568
  21. D0570
  22. D0572
  23.  
  24. conundrum. those are what the HMi was looking for, those may to a PLC time sync subroutine.
  25. the docs say that the HMI wants a time stamp from the server on init. ok. why is it looking there though?
  26. I'd figured it was the internal data, but its not evidently.
  27.  
  28. should have made more photos when it was working.
  29.  
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