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Gas Leakage Detector +0300047IE rel 1.1 - 26.04.2023
Operation
3.9 Table of Modbus®variables
Function 04 Read Input Registers
Address Register
name
Short
description
Medium
description
Long
description
Max
value
Min
value
Unit of
meas.
Modbus
Bit pos.
Modbus
length
Default
value
101 Concentration Concentration ppm Sensor concentra-
tion in “units”
Sensor concentra-
tion in “units”
65535 0 0 16
102 Status_0 No ICM contact No contact with
the sensor module
(ICM)
No contact with the
sensor module (ICM)
1 0 0 1
102 Status_1 No response from
the sensor
Sensor module
(ICM) signals no
contact with the
sensor
Sensor module
(ICM) signals no
contact with the
sensor
1 0 1 1
102 Status_4 Over range Sensor over range Sensor over range 1 0 4 1
102 Status_5 Under range Sensor under range Sensor under range 1 0 5 1
103 Range Full scale Sensor full scale Sensor full scale 65535 0 ppm 0 16
105 DaysOnline DaysOnline Number of days
online
Number of days
online
65535 0 day 0 16
106 ModbusAddress Modbus address Detector Modbus
address
Detector Modbus
address
247 0 0 16 0
107 SWVer SWVer Firmware version Firmware version 65535 0 0 16
108 MachineCode MachineCode MachineCode MachineCode 65535 0 0 16
113 HWVer HWVer Hardware version Hardware version 39321 0 0 16
114 SensorType Sensor type Connected sensor
P/N
Returns the part
number of the
currently connected
product.
See the Sensor type
table to identify the
part numbers of the
available products
999 0 0 16
115 Units Units Unit of measure Unit of measure
used to measure the
gas, currently only
expressed in ppm
999 0 0 16
116 AnalogOutput-
Value
Analogue output Analogue output
value
Analogue output
value as a percent-
age
100 0 % 0 16
117 GasGroup Gas Group Gas group listed in
the table
1 R32 mixtures, 2
HFC/HFO, 3 HC, 4
CO2, 5 NH3
5 1 0 16
118 DaysSinceSer-
vice
Days since service Days since last
service performed
Days since last
service performed
65535 0 day 0 16
119 MaxDaysOnline Max days online Maximum number
of days online
allowed for the
sensor
Maximum number
of days online al-
lowed for the sensor
before replacement
is required
65535 0 day 0 16
120 MaxDaysToS-
ervice
Max days to service Maximum days
until next service
Maximum days until
next service
65535 0 day 0 16 365
Function 06 Write Single Register & Function 16 Write Multiple Register
Address Register name Short
description
Medium
description
Long description Max
value
Min
value
Unit of
meas.
Modbus
Bit pos.
Modbus
length
Default
value
200 LimitAlarm Alarm limit Alarm threshold Alarm threshold 10000 0 ppm 0 16
201 Delay Delay Delay before alarm
activation
Delay before alarm
activation
20 0 min 0 16 0
203 LimitWarning Warning limit Warning threshold Warning threshold 10000 0 ppm 0 16
204 AnalogOutputType Type of analogue
output
Type of analogue output
signal
2 = 4-20mA ; 5 = 1-5V ; 8 =
2-10V ; 10 = 0-10V
10 2 0 16 2
205 PassCode PassCode Password to authorise
the next command
Password to authorise the
next command
65535 0 0 16
206 GasType (*) Type of gas Gas type value Gas type value 50 0 0 16
655 SpanConcentration SpanConcentration Span concentration for
calibration
Span concentration for
calibration
10000 0 ppm 0 16 0
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