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Honeywell Excel 10 W7752D User Manual page 55

Fan coil unit controllers lns plug-ins
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NV name
field name
nvoActiveSetPt
nvoAlarm
subnet
nvoAlarm
node
nvoAlarm
type
(continued)
nvoAlarm
Table C4. Output Variables for Excel 10 FCU Controllers.
digital
engineering units:
state
English (metric) or states plus
or
range
value
SNVT_temp_p
50 to 95°F (10 to 35°C)
621.806°F (327.67°C) =
INVALID
UBYTE
0 to 255
UBYTE
0 to 255
UBYTE
ALM_NO_ALARM
0
ALM_NODE_OFF
1
ALM_FROST
2
ALM_INVALID_SETPNT
3
ALM_TEMP_SENSOR_FAIL
4
ALM_SETPNT_KNOB_FAIL
5
ALM_FAN_SPEED_SW_FAIL
6
ALM_FAN_FAILURE
7
ALM_COMFAIL_SPACETEMP
8
ALM_COMFAIL_HVACMODE
9
ALM_COMFAIL_SETPTOFFS
10
ALM_COMFAIL_SCHEDOCC
11
ALM_COMFAIL_DLC
12
ALM_COMFAIL_TEMPRESET
13
ALM_COMFAIL_ODTEMP
14
ALM_COMFAIL_OCCSENSOR
15
ALM_COMFAIL_WINDOW
16
ALM_COMFAIL_MANHEAT
17
ALM_COMFAIL_MANCOOL
18
ALM_HW_SW_MISMATCH
19
RETURN_TO_NORMAL
128
RTN_NODE_OFF
129
RTN_FROST
130
RTN_INVALID_SETPNT
131
RTN_TEMP_SENSOR_FAIL
132
RTN_SETPNT_KNOB_FAIL
133
RTN_FAN_SPEED_SW_FAIL
134
RTN_FAN_FAILURE
135
RTN_COMFAIL_SPACETEMP
136
RTN_COMFAIL_HVACMODE
137
EXCEL 10 FCU CONTROLLER LNS PLUG-INS USER GUIDE
default
This output variable shows the active setpoint of the control
algorithm. It is based upon the occupancy setpoints, the offset, and
recovery ramping.
This output variable is the LonWorks subnet number (in domain
entry 1 of the node's domain table).
This output variable is the LonWorks node number (in domain
entry 1 of the node's domain table).
RETURN_TO_NORMAL
This output variable reports the latest changed error condition
(at application restart)
detected in the node. The first 5 bits are used for the alarm type
number, and this number is added to RETURN_TO_NORMAL
(128) when the error condition is no longer true. Each error
condition/return-to-normal is issued only once. The type is also
recorded in nvoAlarmLog and nvoFcuStatus.alarm_type.
Alarm reporting is suppressed by settin nviManualMode to
SUPPRESS_ALARMS, in which case nvoAlarm.type is set to
ALARM_NOTIFY_DISABLED. Alarm reporting is turned ON again
by setting nviManualMode to UNSUPPRESS_ALARMS, after
which all existing alarms (or ALM_NO_ALARM) are reported one
at a time.
53
comments
EN2B-0285GE51 R0909

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