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DSC module + PLC via RS485 Modbus-RTU

ALHIMIK

By ALHIMIK,
in LabVIEW General

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ALHIMIK Newbie

ALHIMIK

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Hello.
I use USB - RS485 converter to connect to my plc. I can read holding register with measured value and with assignment value, but i cant write assignment value.
I use i/o server with this settings -  Modbus-RTU, 9600/8N2, shared variable are (S)400002 and (S)400003.
Thanks

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