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Tuesday, October 16, 2018
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Registers in Modbus Communication
Registers read 2 bytes and it was already identified. What if the byte you need to read is byte 5 to 8, what will be the register number?

Hello,

I'm currently communicating a modbus master and slave and by using registers we can call the data.

The slave address of the bytes are

bytes 0 to 3 = analog input 1
byte 4 = status of analog input 1
byte 5 to 8 = analog input 2
byte 9 = status of analog input 2

Can anyone teach me how can i call the bytes 5 to 8 using registers.
the slave is Aztec 600 and the master is RVG200 both abb products..

Tia,