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Example: Reading of voltage L1-N
The voltage L1-N is deposited under the ad-
dress 200. Voltage L1-N is available in INT for-
mat.
The device address here is supposed with ad-
dress = 01.
The "Query Message" looks as follows:
Description
Hex
Comment
Device address 01
UMG96S, Address = 1
Function
03
"Read Holding Reg."
Start addr. Hi
00
0200dez = 00C8hex
Start addr. Lo
C8
Ind. values Hi
00
2dez = 0002hex
Ind. values Lo 02
Error Check
-
The "Response" of the UMG96S might look as
follows:
Description
Hex
Comment
Device address 01
UMG96S, Address = 1
Function
03
Byte counter
06
Data
00
00
hex = 00dez
Data
E6
E6
hex = 230dez
Error Check (CRC)
-
The retrieved voltage L1-N of address 0200 is
230V.
MODBUS RTU
Via MODBUS RTU Protocol you have access to
the data of parameter list and measured value
list.
Transmission parameters
RTU- Mode with CRC-Check.
Realized functions
Read Holding Register, Function 03
Preset Multiple Registers, Function 16
The sequence of the bytes is high before low
byte.
Attention!
Maximum 120 Byte can be read in one
lot/block.
m
Содержание UMG 96S
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