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At each parameter configuration, instrument storeschange
values in the EEPROM memory (100000 writing cycles), while
setpoints are stored with a delay of 10 seconds after last
modification. NB: modifications made to words different from
those described in the following table can lead to instrument
malfunction.
Modbus RTU protocol features
Baud-rate
Format
Supported
functions
The list below includes all available addresses:
RO = Read Only
Modbus address
Modbus
address
0
Device type
1
Software version
5
Slave Address
Modbus RTU protocol features
Selectable on parameter 56
4800bit/sec
4.8 k
9600bit/sec
9.6 k
19200bit/sec
19.2k
28800bit/sec
28.8k
38400bit/sec
38. 4 k
57600bit/sec
57.6k
8, N, 1 (8bit, no parity, 1 stop)
WORD READING (max 20 word) (0x03, 0x04)
SINGLE WORD WRITING (0x06)
MULTIPLE WORDS WRITING (max 20 word)
(0x10)
R/W = Read/Write
Description
WO = Write Only
Read
Write
RO
RO
R/W EEPROM
UR3274U - User manual
Reset
value
EEPROM
EEPROM
29
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