22
ENG
Gas Leakage Detector +0300047IE rel 1.1 - 26.04.2023
Operation
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
300 PreAlarmFlag Alarm ag Indicator of whether
the alarm threshold has
been exceeded
1 = alarm threshold
exceeded
1 0 0 1 0
302 Fault Fault Fault indication 1 = fault. See register 102
to identify the type of fault
that has occurred
1 0 0 1 0
303 W1LED W1LED W1 RED status LED W1 RED status LED 1 0 0 1 0
304 W2LED W2LED W2 GREEN status LED W2 GREEN status LED 1 0 0 1 0
305 W3LED W3LED W3 YELLOW status LED W3 YELLOW status LED 1 0 0 1 0
307 PreWarningFlag PreWarning ag Indicator of whether the
warning threshold has
been exceeded
1 = warning threshold
exceeded
1 0 0 1 0
308 WarningFlag Warning relay Warning activation indi-
cator including delay
1 = Warning ON 1 0 0 1 0
309 AlarmFlag Alarm relay Alarm activation indica-
tor including delay
1 = Alarm on 1 0 0 1 0
310 BTStatus BTStatus Bluetooth status 1 = Bluetooth on 1 0 0 1 0
311 SensorExpired Sensor expired Flag showing if the
sensor needs to be
replaced
1 = sensor to be replaced 1 0 0 1 0
312 DeviceUnlocked Device unlocked Indicator for authorisa-
tion to modify variables
1 = dispositivo unlocked 1 0 0 1 0
Function 05 Write Single Coil & Function 01 Read Coils
Address Register name Short description Medium
description
Long description Max
value
Min
value
Unit of
meas.
Modbus
Bit pos.
Modbus
length
Default
value
401 ServiceDue Service needed Maintenance indicator
(including calibration).
1 = maintenance required 1 0 0 1 0
402 Acknowledge Acknowledge Manual reset for warn-
ing/alarm
1= manual warning/
alarm reset. The fault alarm
cannot be disabled
1 0 0 1 0
403 RelayFailSafe Relay FailSafe Relay in failsafe mode 1 = Relay in failsafe mode 1 0 0 1 0
404 RelayWF Relay WF Warning relay used as
fault
1 = Warning relay used
as fault
1 0 0 1 0
405 AcknowledgeWarn-
ing
Acknowledge warning Manual/automatic
warning acknowledge-
ment setting
1 = automatic reset;
0 = manual reset
1 0 0 1 0
406 AcknowledgeAlarm AcknowledgeAlarm Manual/automatic alarm
acknowledgement
setting
1 = automatic reset;
0 = manual reset
1 0 0 1 1
407 ZeroCalibration Zero calibration Start zero calibration
command
1 = start calibration 1 0 0 1 1
408 SpanCalibration SpanCalibration Start span calibration
command
1 = start span calibration 1 0 0 1 0
409 FactoryReset Reset Reset the detector to
the factory settings
1 = restore factory
settings
1 0 0 1 0
Sensor type table
ID Part number Description
0 GDSBI20C00 Gas Detector Small R-744 (Co2) Infrared Wall Built-In
1 GDSBE19C00 Gas Detector Small R-717 (Ammonia) Electrochemical Wall Built-In
2 GDSBSMXC00 Gas Detector Small Group1Semiconductor Wall Built-In
3 GDSBSHFC00 Gas Detector Small Group 2 Semiconductor Wall Built-In
4 GDSBSHCC00 Gas Detector Small Group 3 Semiconductor Wall Built-In
5 GDSRI20C00 Gas Detector Small R-744 (Co2) Infrared Wall Remote
6 GDSRE19C00 Gas Detector Small R-717 (Ammonia) Electrochemical Wall Remote
7 GDSRSMXC00 Gas Detector Small Group1Semiconductor Wall Remote
8 GDSRSHFC00 Gas Detector Small Group 2 Semiconductor Wall Remote
9 GDSRSHCC00 Gas Detector Small Group 3 Semiconductor Wall Remote
10 GDOPZI2010SP Pre-Calibrated Sensor Module Small - R-744 (Co2) Infrared
11 GDOPZE1910SP Pre-Calibrated Sensor Module Small - R-717 (Ammonia) Electrochemical
12 GDOPZSMX10SP Pre-Calibrated Sensor Module Small - Group1Semiconductor
13 GDOPZSHF10SP Pre-Calibrated Sensor Module Small - Group 2 Semiconductor
14 GDOPZSHC10SP Pre-Calibrated Sensor Module Small - Group 3 Semiconductor
15 GDOPZT0000 Gas Detector - Calibration Kit For Small Edition
3.9.1 Meaning of the operating timers
• MaxDaysOnLine: This is the sensor operating time expressed in days. The value depends on the sensor technology: semicon-
ductor, infrared or electrochemical.
• DaysOnLine: Number of days since the sensor was powered on. When the value is greater than MaxDaysOnLine, the Sensor-
Expired ag will be active.
• MaxDaysToService: Time expressed as a number of days after which calibration is required.
• DaysSinceService: Number of days since the sensor was powered on following the last calibration. When the value is greater
than MaxDaysToService, the ServiceDue ag will be active.