15.04.2025, 12:48
Is the GND connected between devices?
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Modbus profiles examples
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28.04.2025, 05:48
(15.04.2025, 12:48)Daniel Wrote: Is the GND connected between devices? Hi, The Modbus master device does not have a GND connection (see attachment ECP202EXP.PNG).
28.04.2025, 07:20
Check all suggestions from this thread
https://forum.logicmachine.net/showthrea...2#pid38562
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28.04.2025, 12:12
It's possible that INP-GND or PROBE-G can be used. Power down the unit and check resistance between INP-GND and PROBE-G. Most likely inputs are not isolated and resistance should be close to 0. Then check the resistance between RS485-A and INP-GND / RS485-B and INP-GND. Report the values that you get.
22.05.2025, 20:05
23.05.2025, 06:28
See the attached profile. It's not tested so some modifications might be needed. Use Modbus profiler app for this: https://forum.logicmachine.net/showthread.php?tid=5911
Yesterday, 15:57
Good afternoon,
I'm having some trouble with the Modbus Profiler because I'm not getting Modbus data from some CIRCUTOR counters that I have connected to Logic Machine 5 via gateways. I've attached photos of the counter models, gateway, mapping, variables, profiles, etc. https://docs.circutor.com/docs/M362B01-01.pdf https://docs.circutor.com/docs/M239B01-01.pdf As you can see, both the Modbus TCP gateway and the counter are from the CIRCUTOR brand. I created a profile to extract the data from the counter for active power and total energy measured by the counter, but for some reason it doesn't write to objects 1/2/4. I don't know if you see anything strange in the profile creation in the Modbus Profiler. Thank you very much.
Yesterday, 16:00
Use Read test to check if you have communication and if your profile settings are correct.
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