Algodue ELETTRONICA UPM309 Manual Del Usuario página 55

WRITING COMMAND STRUCTURE (function code $10)
The master communication device can send commands to the instrument for setup. More settings can be
carried out, at the same time, sending a single command, only if the relevant registers are consecutive (see
chapter 4). Values contained both in Command and Response messages are in hex format.
Structure
Slave address
Function code
Starting register
Words to be written
Data bytes
Programming data to be written
CRC
Command example: 0110203C000204000000032E29
Structure
Slave address
Function code
Starting register
Written words
CRC
Response example: 0110203C0002048A
MODBUS RTU/ASCII, TCP
Example Byte
01 -
10 -
20 High
3C Low
00 High
02
Low
04 -
00 High
00 Low
00 High
03 Low
2E High
29 Low
Example Byte
01 -
10 -
20 High
3C Low
00 High
02 Low
04 High
8A Low
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