11
2 Protocol description
2.5
Structure of the data blocks
All data blocks have the same structure:
Data structure
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
Slave
address
Function
code
Data field
Checksum
CRC16
1 byte
1 byte
x byte
2 bytes
Summary of Contents for TCONTROL-CONT-03
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