FS100 modbus communication

Hi all,

I'm connecting to fs100 yaskawa with serial port and I can connect with pymodbus using com3 baundrate 2400

I would ask how to read/write registers M000 .... in fs100.

Or how can i get the number of register 000 because 000 is non acceptable.

Many thanks in advance

thank you for your suggestion but it not works. Have you other ideas to communicate with serial modbus with robot?

many thanks

I add that if I connect using

method = "rtu",

port = "COM3",

stopbits = 1,

bytesize = 8,

parity = "E",

baudrate = 9600,

timeout = 1,

and I try to read a register I always obtain the following output

CONNECTION TRUE

{'fcode': 3, 'message': '[Input/Output] Modbus Error: [Invalid Message] No response received, expected at least 2 bytes (0 received)', 'string': '[Input/Output] Modbus Error: [Invalid Message] No response received, expected at least 2 bytes (0 received)'}