Algodue ELETTRONICA UPM209 Manual Del Usuario página 54

READING COMMAND STRUCTURE
The master communication device can send commands to the instrument to read its status, setup and the
measured values. More registers can be read, at the same time, sending a single command, only if the registers
are consecutive (see chapter 4). Values contained both in Query and Response messages are in hex format.
Transaction ID
Protocol ID
Data bytes
Unit ID
Function code
Starting register
Words to be read
Query example: 010000000006010300000002
Transaction ID
Protocol ID
Data bytes
Unit ID
Function code
Reading bytes
Requested reading data
Response example: 01000000000701030400039210
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.
Transaction ID
54
01 -
00 High
00
Low
00 High
00 Low
06 -
01 -
03 -
00 High
00 Low
00 High
02 Low
01 -
00 High
00 Low
00 High
00 Low
07 -
01 -
03 -
04 -
00 High
03 Low
92
High
10 Low
01 -
MODBUS RTU/ASCII, TCP