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BRONKHORST®
4.4.6 Available parameters
Modbus registers (in the data model) are numbered from 1 to 65536. In a Modbus PDU (Protocol Data Unit) these
registers are addressed from 0 to 65535. This addressing model has been described in section 4.4 of [1].
The following table lists the most commonly used parameters.
MODBUS REGISTERS
PARAMETER NAME
PARAMETER
TYPE
ACCESS
PDU ADDRESS REGISTER NUMBER
REMARK
Hex Dec Hex Dec
Wink
Unsigned char
W
0x0000
0
0x0001
1
Value 14592
Initreset
Unsigned char
RW
0x000A
10
0x000B
11
Valve output
Unsigned int
RW
0x001F
31
0x0020
32
Range 0..32767
Measure
Unsigned int
R
0x0020
32
0x0021
33
Setpoint
Unsigned int
RW
0x0021
33
0x0022
34
Setpoint slope
Unsigned int
RW
0x0022
34
0x0023
35
Analog input
Unsigned int
R
0x0023
35
0x0024
36
Control mode
Unsigned char
RW
0x0024
36
0x0025
37
Sensor type
Unsigned char
RW
0x002E
46
0x002F
47
Capacity unit index
Unsigned char
RW
0x002F
47
0x0030
48
Fluid number
Unsigned char
RW
0x0030
48
0x0031
49
Alarm info
Unsigned char
R
0x0034
52
0x0035
53
Temperature
Unsigned int
R
0x0427
1063
0x0428
1064
See addr 0xA138
Alarm limit maximum
Unsigned int
RW
0x0C21
3105
0x0C22
3106
Alarm limit minimum
Unsigned int
RW
0x0C22
3106
0x0C23
3107
Alarm mode
Unsigned char
RW
0x0C23
3107
0x0C24
3108
Alarm setpoint mode
Unsigned char
RW
0x0C25
3109
0x0C26
3110
Alarm new setpoint
Unsigned int
RW
0x0C26
3110
0x0C27
3111
Alarm delay
Unsigned char
RW
0x0C27
3111
0x0C28
3112
Reset alarm enable
Unsigned char
RW
0x0C29
3113
0x0C2A
3114
Counter value
Unsigned int
RW
0x0D01
3329
0x0D02
3330
See addr 0xE808
Counter unit index
Unsigned char
RW
0x0D02
3330
0x0D03
3331
Counter limit
Unsigned int
RW
0x0D03
3331
0x0D04
3332
See addr 0xE818
Counter setpoint mode
Unsigned char
RW
0x0D05
3333
0x0D06
3334
Counter new setpoint
Unsigned int
RW
0x0D06
3334
0x0D07
3335
Counter mode
Unsigned char
RW
0x0D08
3336
0x0D09
3337
Reset counter enable
Unsigned char
RW
0x0D09
3337
0X0D0A
3338
Identification number
Unsigned char
RW
0x0E2C
3628
0x0E2D
3629
Normal step c. resp.
Unsigned char
RW
0x0E45
3653
0x0E46
3654
Stable situation c. resp.
Unsigned char
RW
0x0E51
3665
0x0E52
3666
Open from zero c. resp.
Unsigned char
RW
0x0E52
3666
0x0E53
3667
Calibration mode
Unsigned char
RW
0x0E61
3681
0x0E62
3682
Monitor mode
Unsigned char
RW
0x0E62
3682
0x0E63
3683
Reset
Unsigned char
W
0x0E68
3688
0x0E69
3689
Bridge potmeter
Unsigned char
RW
0x0E85
3717
0x0E86
3718
Modbus slave address
Unsigned char
RW
0x0FAA
4010
0x0FAB
4011
Polynomial constant A
Float
RW
0x8128..0x8129
33064..33065
0x8129..0x812A
33065..33066
Polynomial constant B
Float
RW
0x8130..0x8131
33072..33073
0x8131..0x8132
33073..33074
Polynomial constant C
Float
RW
0x8138..0x8139
33080..33081
0x8139..0x81A
33081..33082
Polynomial constant D
Float
RW
0x8140..0x8141
33088..33089
0x8141..0x8142
33089..33090
Sensor differentiator dn
Float
RW
0x8158..0x8159
33112..33113
0x8159..0x815A
33113..33114
Sensor differentiator up
Float
RW
0x8160..0x8161
33120..33121
0x8161..0x8162
33121..33122
Capacity
Float
RW
0x8168..0x8169
33128..33129
0x8169..0x816A
33129..33130
Fluid name
String (10 bytes)
RW
0x8188..0x818C
33160..33164
0x8189..0x818D
33161..33165
Capacity unit
String (7 bytes)
RW
0x81F8..0x81FB
33272..33275
0x81F9..0x81FC
33273..33276
Fmeasure
Float
R
0xA100..0xA101
41216..41217
0xA101..0xA102
41217..41218
FSetpoint
Float
RW
0xA118..0xA119
41240..41241
0xA119..0xA11A
41241..41242
Temperature
Float
R
0xA138..0xA139
41272..41273
0xA139..0xA13A
41273..41274
See addr 0x0427
Capacity 0%
Float
RW
0xA1B0..0xA1B1
41392..41393
0xA1B1..0xA1B2
41393..41394
Counter value
Float
RW
0xE808..0xE809
59400..59401
0xE809..0xE80A
59401..59402
See addr 0x0D01
Counter limit
Float
RW
0xE818..0xE819
59416..59417
0xE819..0xE81A
59417..59418
See addr 0x0D03
Counter unit
String (4 bytes)
R
0xE838..0xE839
59448..59449
0xE839..0xE83A
59449..59450
Device type
String (6 bytes)
R
0xF108..0xF10A
61704..61706
0xF109..0xF10B
61705..61707
BHTModel number
String (14 bytes)
RW
0xF110..0xF116
61712..61718
0xF111..0xF117
61713..61719
Serial number
String (16 bytes)
RW
0xF118..0xF11F
61720..61727
0xF119..0xF120
61721..61728
Customer model
String (16 bytes)
RW
0xF120..0xF127
61728..61735
0xF121..0xF128
61729..61736
Firmware version
String (5 bytes)
R
0xF128..0xF12A
61736..61738
0xF129..0xF12B
61737..61739
Page 19 Modbus interface 9.17.035
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