M
Hello,
I have to create a light implementation of modbus server with "additional address" and "error check". If I receive a packet with lack of fields what kind of "modbus exception code" I have to respond?
For example: if I receive <pre>
ADDITIONAL ADDRESS 1B
READ HOLDING REGISTERS 1B
STARTING ADDRESS 2B
QUANTITY OF REGISTERS 1B instead of 2B
CRC16 2B</pre>
what kind of "modbus exception code" I have to respond?
I have to create a light implementation of modbus server with "additional address" and "error check". If I receive a packet with lack of fields what kind of "modbus exception code" I have to respond?
For example: if I receive <pre>
ADDITIONAL ADDRESS 1B
READ HOLDING REGISTERS 1B
STARTING ADDRESS 2B
QUANTITY OF REGISTERS 1B instead of 2B
CRC16 2B</pre>
what kind of "modbus exception code" I have to respond?