6. MODBUS menu survey
Function Min. Max. Factory Unit AKM name
Gas level
Sensor 1 Actual gas level in % of range 0.0 100.0 - % Gas level %
Sensor 1 Actual gas level in ppm 0 FS
1
- ppm Gas level ppm
Sensor 2 Actual gas level in % of range 0.0 100.0 - % 2: Gas level %
Sensor 2 Actual gas level in ppm 0 FS
1
- ppm 2: Gas level ppm
Alarms Alarm settings
Indication of critical alarm (critical alarm of Gas 1 or Gas 2 active)
0: No active alarm(s)
1: Alarm(s) active
0 1 - - GD alarm
Common indication of both critical and warning alarm as well as internal and
maintenance alarms
0: No active alarm(s), warning(s) or errors
1: Alarm(s) or warning(s)) active
0 1 - - Common errors
Gas 1 Critical limit in %.
Critical limit in % (0-100)
0.0 100.0 HFC: 25
CO: 25
R290: 16
% Crit. limit %
Gas 1 Critical limit in ppm
Critical limit in ppm; 0: Warning Signal deactivated
0 FS
1
HFC: 500
CO: 5000
R290: 800
ppm Crit. limit ppm
Gas 1 Warning limit in % (0-100) 0 100.0 HFC: 25
CO: 25
R290: 16
% Warn. limit %
Gas 1
Warning limit ppm 0: Warning Signal deactivated
0.0 FS
1
HFC: 500
CO: 5000
R290: 800
ppm Warn. limit ppm
High (critical and warning) alarm delay in seconds, if set to 0: no delay 0 600 0 sec. Alarm delay s
When set to 1, the Buzzer is reset (and the relays if defined: Relay rest enable)
to no alarm indication. When the alarm is reset or
the time-out duration is exceeded, the value is reset to 0.
Note: The alarm condition is not reset - only the output indication is reset.
0: Alarm outputs not reset
1: Alarm outputs reset–Buzzer muted and relays reset if configured
0 1 0 - Reset alarm
Duration of alarm reset before automatic re-enable of alarm outputs. A set-
ting of 0 disables the ability to reset alarm.
0 9999 300 sec. Reset alarm time
Relay reset enables:
Relay reset with alarm acknowledge function
1: (default) Relays wil be reset if the alarm acknowledge function is activated
0: Relays remain active until the alarm condition clears
0 1 1 - Relay rst enable
Gas 2 Critical limit in %.
Critical limit in % (0-100)
0.0 100.0 CO: 25 % 2: Crit. limit %
Gas 2 Critical limit in ppm
Critical limit in ppm; 0: Warning Signal deactivated
0 FS
1
CO: 5000 ppm 2: Crit. limit ppm
Gas 2. Warning limit in % (0-100) 0 100.0 CO: 25 % 2: Warn. limit %
Gas 2. Warning limit ppm 0: Warning Signal deactivated 0.0 FS
1
CO: 5000 ppm 2: Warn. limit ppm
High (critical and warning) alarm delay in seconds, if set to 0: no delay 0 600 0 sec. 2: Alarm delay s
Configuration of relays for one or two rooms’ application mode.
1: One room with two sensors sharing the same warning relay and critical relay
2: Two rooms with one sensor in each, and each sensor having a critical alarm
relay. In this mode, warning alarms activate as normal on the LED indicator,
hand-held Service Tool and on MODBUS.
1 2 1 - 2: Room Mode
Service
Status of the sensors’ warm-up period
0: Ready
1: Warming up one or more sensors
0 1 - - DGS Warm-up
) The max. alarm limit for CO is 16.000 ppm / 80% of full scale. All other values equal the full scale range of the specific product.
User Guide | Danfoss Gas sensor, type DGS
22 | BC291049702513en-000201 © Danfoss | Climate Solutions | 2022.01