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

2.5

Structure of the data blocks

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