Structure Of The Data Blocks - DigiTrace TCONTROL-CONT-03 Anleitung

2.5

Structure of the data blocks

Data structure
All data blocks have the same structure:
Slave Function
address code
1 byte 1 byte
Each data block contains four fields:
Slave address device address of a specific slave
Function code function selection (read, write words)
Data field contains the following information:
- word address
- number of words
- word value(s)
Checksum detection of transmission errors
2 Protocol description
Data field Checksum
CRC16
x byte 2 bytes
11