Honeywell T7350 System Engineering

T7350 COMMERCIAL PROGRAMMABLE THERMOSTAT
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APPENDIX B - NETWORK ALARM REPORTING
Table 13. T7350H Alarm Change of State Event.
A T7350H alarm change of state event is reported by the manufacturer defined output network variable nvoAlarmH.
nvoAlarmH Field Description
subnet
The L
ONWORKS
®
subnet number in the domain entry to which nvoAlarmH is bound. If nvoAlarmH is not
bound, it reports domain index 0.
0: Invalid subnet (power up value)
1-255: Subnet number
node
The L
ONWORKS
®
node number in the domain entry to which nvoAlarmH is bound. If nvoAlarmH is not
bound, it reports domain index 0.
0: Invalid entry (power up value)
1-127: Node number
type The alarm type being issued.
0: AT_NO_ALARM (power up value)
1: AT_INVALID_SUBBASE_TYPE
2: AT_NETWORK_COMM_FAIL
3: AT_SENSOR_FAIL
4: AT_INVALID_IO_CONFIG
5: AT_COVER_COMM_FAIL
6: AT_COVER_SUBBASE_MISMATCH
Return to Normal Codes
-127: AT_rtnINVALID_SUBBASE_TYPE
-126: AT_rtnNETWORK_COMM_FAIL
-125: AT_rtnSENSOR_FAIL
-124: AT_rtnINVALID_IO_CONFIG
-123: AT_rtnCOVER_COMM_FAIL
-122: AT_rtnCOVER_SUBBASE_MISMATCH
-1: AT_ALARM_NOTIFY_DISABLED
Table 14. T7350 Current Alarm Status.
The T7350 current alarm status is reported by the manufacturer defined output network variable nvoAlarmStatus.
nvoAlarmStatus
Field
Description
coverCommFail Communications between the cover and sub-base.
0: No alarm (power up value).
1: The communications between the thermostat cover assembly and the sub-base has failed in one or
both directions. The data from the cover to the sub-base has not been received for at least 90
seconds, or data from the sub-base is not updating the cover assembly.
invalidIOConfig Output configuration error.
0: No alarm (power up value).
1: The number of outputs configured exceeds the capability of the sub-base to support them.
Considers sub-base type, heat pump/conventional application, maxCoolStgs, maxHeatStgs.
sensorFail Sensor failure.
0: No alarm (power up value).
1: One of the analog sensors on the cover assembly has failed or is out of range (high or low).
networkCommFail Network Communications Failure.
0: No alarm (power up value).
1: One of the bound network input network variables is not being updated periodically. This alarm may
be caused by a failed node or a damaged L
ONWORKS NETWORK cable.
invidSubBaseTyp Sub-base type error.
0: No alarm (power up value).
1: The detected sub-base type is not supported by the firmware version of the cover assembly.

Honeywell T7350 Specifications

General

Brand	Honeywell
Model	T7350
Category	Thermostat
Language	English