I tried to change frequency of Inverter 3G3MX2 via Modbus RTU, I learn in the past that I need to use LibDRVmbus library to communicate with it, here are my master program: Init: [image] Cyclic: [image] datamod: [image] 3G3MX2 datasheet: [image] It seems there’s nothing wrong when I try…

[image] Farhan Ramadhan: LibDRVmbus There is an issue with you data module. You are using . where it should : for the variables. So LibDRVmbus.EventPV4 should be LibDRVmbus:EventPV4. Change that for all variables.

Writing: [image] Reading: [image] as we can see the LocalPV3 is not reading the value, is there anything that I did wrong?

Modbus RTU Communication with 3G3MX2-A4007-V2

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Modbus RTU Communication with 3G3MX2-A4007-V2

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