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+--- Thread: Modbus Register Adresses 65-72 issue (/showthread.php?tid=6200)
Modbus Register Adresses 65-72 issue - Sam1 - 27.11.2025
Hello,
I need and advice with modbus RS485 issue,
Im not able to control addresses 65-72 through group objects, RX TX LED on Slave device flash only when I link our group object to the RTU adress, and it updates to correct value, so register is fine, I'm just not able to rewrite it - LM doesn't allow me to, it won't send anything to the RTU, adresses in Slave device are R/W, I have allowed this GO to write to the bus.
Can we somehow allow Logic Machine to write values to these 7 adreses? RTU Device allows us to control these parameters from modbus. Do we need some kind of script for that?
Thanks!
BR
RE: Modbus Register Adresses 65-72 issue - admin - 27.11.2025
Post your device profile.
RE: Modbus Register Adresses 65-72 issue - Sam1 - 27.11.2025
File "List" is manufacturer adress list of Device
Json is mine profile using in LM.
Everything is working fine except for 65-72 adresses.
RE: Modbus Register Adresses 65-72 issue - admin - 27.11.2025
The correct field name is writable not writeable.
To avoid such errors use Modbus profiler app: https://forum.logicmachine.net/showthread.php?tid=5911
RE: Modbus Register Adresses 65-72 issue - Sam1 - 27.11.2025
... Thank You so much I haven't noticed this... Its okay
I'm so sorry x)