23
Features of protocol Modbus RTU
Baud-rate Selectable on parameter 70
4800bit/sec
9600bit/sec
19200bit/sec
28800bit/sec
38400bit/sec
57600bit/sec
Format 8, N, 1 (8bit, no parity, 1 stop)
Supported
functions
WORD READING (max 20 word) (0x03, 0x04)
SINGLE WORD WRITING (0x06)
MULTIPLE WORDS WRITING (max 20 word)
(0x10)
The list below includes all the available addresses:
RO =
Read Only
R/W =
Read / Write
WO =
Write Only
Modbus
address
Description
Read
Write
Reset
value
0
Device type
RO
EEPROM
1
Software version
RO
EEPROM
5
Slave Address
R/W
EEPROM
6
Boot version
RO
EEPROM
50
Automatic addressing
WO
-
51
System code comparison
WO
-
1000
Process (with tenths of degree for temperature
sensors; digits for linear sensors)
RO
?
1001
Setpoint1
R/W
EEPROM
1002
Setpoint2
R/W
EEPROM
1003
Setpoint3
R/W
EEPROM
1004
Setpoint4
R/W
EEPROM
1005
Alarm1
R/W
EEPROM
1006
Alarm2
R/W
EEPROM
1007
Alarm3
R/W
EEPROM
1008
Setpoint gradient
RO
EEPROM
Содержание DRR245-21-ABC-T
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