I'm testing Modubs RTU example.
Whenever I tried to read Input Register value.
I can see 02 Illegal Data Address.
I'm using Modbus Poll window program to check Modbus communication.
other functions are working well such as Coils, Discrete Input, Holding Registers.
I use code from example here:
https://github.com/espressif/esp-idf/bl ... in/slave.c
02 illegal Data Address from Modbus Slave Example
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Re: 02 illegal Data Address from Modbus Slave Example
@chikichaka ,
The slave configures two register areas for input registers:
Reg input area 1: 0, length: 8
Reg input area 2: 158, length: 8
If you configure Modbus poll to read these registers you will get the data correctly.
The slave configures two register areas for input registers:
Reg input area 1: 0, length: 8
Reg input area 2: 158, length: 8
If you configure Modbus poll to read these registers you will get the data correctly.
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