ivan da silva

modbus application

4 posts in this topic

 

I am making an application with a fx5u with 4 d700 inverter, what is the way to communicate with them and the configuration in gxworks3, someone has an example in ladder.

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there is an example on the mitsubishi site for the FX3U to inverter via modbus.

just import to GX 3 it should work the same

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Hello this is my test project of RS485 connection with fr-a700. There is 4 FBs and 2 programms. 

1 - Modbus via ADPRW function (Using instruction step by step)

2 - Modbus via Predifined protocol CPRTCL function  (Using instruction step by step)

3 - Modbus via Predifined protocol CPRTCL function  (Using one instruction)

4 - Freqrol via Predifined protocol CPRTCL function 

 1,2,3 fb i have tested with one inverter online. All functionality is good, but maybe some problem with reset command (not tested with 2 and more inverters).

4 FB via freqrol i have used in real project with 4 inverters online, all worked good. 

In difference communication via Predifined protocol more faster and easy, then via adprw.

Don't forget change communication parameters of RS485 when you will test difference programm.

FR-A700_RS485_FX5.rar

Edited by Clear.Mind

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