Saudagar Bhande

Modbus RTU Communication for FX5U-32M CPU

4 posts in this topic

Hi,

     Anyone use MODBUS RTU communication Protocol for FX5U-32M CPU Build in Ports if yes then please share fundamental settings or sample program.

 

Thanks

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Sample program is in the manual. Actually it's just an instruction.

 

Capture.JPG

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Thanks,

But according to that, I already checked the program but it is not communicating , also I checked in the program given below is showing an error for slave response can you help me out

for this please check program.

Regards,

 

MODBUS Master (1).gx3

MODBUS Slave.GTX

modbus_rtu_plc_error.png

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You should  reset the command when finished as shown in the example above.

However I do not think that's the problem. Have you checked your wiring ?

As a test you could why not set it up vice versa. Make the GOT MAster and the FX5 slave.
When that is working you know the cables are ok. Than change it back 

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