Specifications

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76
nviRequest: to request modes for objects within this node
nvoStatus: to report status of objects on this node
nvoCO
2
ppm: this output variable reports the CO
2
level
detected by the sensor
nciMaxSendtime: indicates the maximum period of time that
expires before the sensor object automatically updates all its
output variables
(default value: 300 seconds)
nciMinSendtime: indicates the minimum period between
output network variable transitions
(default value: 5 seconds)
nciCO2MinDelta: indicates the minimum CO
2
level change
required to update the output network variables
(default value: 10 ppm)
NETWORKS VARIABLES FOR TEMPERATURE
(GML 20T MODEL ONLY)
nvoHVACtemp: this output variable reports the temperature
detected by the sensor
nciMaxStime_temp: indicates the maximum period of time
that expires before the sensor object automatically updates all
its output variables
(default value: 300 seconds)
nciMinStime_temp: indicates the minimum period between
output network variable transitions
(default value: 5 seconds)
nciMinDelta_temp: indicates the minimum temperature
change required to update the output network variables
(default value: 0.3 °C)
nciTmpOffset: indicates the temperature offset level
(default value: -0.8 °C)
LonWorks® is a registered trademark of Echelon Corporation.
TECHNICAL DATA - GML 20 T AND GML 20
NETWORK VARIABLES FOR CO
2
(BOTH MODELS GML 20 AND 20T)
LonWorks® interoperable
Twisted pair free topology, network type TP/FT-10 at 78kbps
 Additional two wires needed for powering
the transmitter; can thus be connected to
both powered and non-powered networks
 Service button and service led for simple installation and
configuration
 External interface (xif.) file available on request (GML 20
part no. 19412GM, GML 20T part no. 19748GM)
Temperature (GML 20T only):
measurement accuracy 0.9
0
F (0.5 °C)
measurement range +32°...113 °F ( 0°...+45 °C)
Warm-up time 30 min.
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