BERG UBN 309 Bedienungsanleitung Seite 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
Transaction ID
Protocol ID
Data bytes
Unit ID
Function code
Starting register
Words to be written
Bytes to be written
Programming data to be written
Command example: 01000000000B0110203C00020400000003
Structure
Transaction ID
Protocol ID
Data bytes
Unit ID
Function code
Starting register
Command successfully sent
Response example: 0100000000060110203C0001
MODBUS rTU/ASCII, TCP
Example Byte
01 -
00 High
00 Low
00 High
00 Low
0B
-
01 -
10 -
20 High
3C Low
00 High
02 Low
04 -
00 High
00 Low
00 High
03 Low
Example Byte
01 -
00 High
00 Low
00 High
00 Low
06 -
01 -
10
-
20 High
3C Low
00 High
01 Low
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