Writing Command Examples - Algodue ELETTRONICA UPM209 Manual Del Usuario

Example Byte Description
00
High
00 Low
Protocol ID
00 High
00 Low
06 - 6 data bytes
01 - Unit ID
03 - Function code
20 High
Starting register
3C Low
00 High
2 words to be read
02 Low
Response example: 01000000000701030400000001
01 - Transaction ID
00 High
00 Low
Protocol ID
00 High
00 Low
07 - 7 data bytes
01 - Unit ID
03 - Function code
04 - 4 reading bytes
00
High
00 Low
3 phase, 4 wire, 3 current wiring mode
00 High
01 Low

6. WRITING COMMAND EXAMPLES

In this chapter, some writing command examples are described according to the used communication protocol
90 MODBUS RTU/ASCII, TCP