Implementation Of Nvirequest - Honeywell Apex Technical Handbook

Gas detection system
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MAN0604_Issue 09_02-2013
2110M8030
APPENDIX A - SPECIFICATIONS
nciHighLim1 and nciHighLim2 inputs
These network configuration inputs (NCIs) set the alarm thresholds for the sensor. LonMaker
automatically loads these from a configuration parameter database when a replace or resynchronise
operation is performed.
However, updates to these NCIs will have no effect if they contain an illegal value. Additionally, the
actual alarm thresholds (which are indicated by nvoAlmThresh1 and nvoAlmThresh2) may differ if
changed using the front-panel user interface.
So setting the sensor alarm thresholds is intuitive using either these two NCIs or the front panel. But
mixing the two strategies can be cumbersome. The units are the same as nvoAlarmThresh1, see
above.
A.4.5 Implementation of nviRequest
The object request variable can convey a variety of commands to LonWorks nodes. Not all of these
messages are applicable to the LIFELINE II.
The following table lists which of these requests are implemented. Blank entries correspond to
unimplemented requests.
Request
0 RQ_NORMAL
1 RQ_DISABLED
2 RQ_UPDATE_STATUS
3 RQ_SELF_TEST
4 RQ_UPDATE_ALARM
5 RQ_REPORT_MASK
6 RQ_OVERRIDE
7 RQ_ENABLE
8 RQ_RMV_OVERRIDE
9 RQ_CLEAR_STATUS
10 RQ_CLEAR_ALARM
11 RQ_ALARM_NOTIFY_ENABLE Enable Alarm reporting
12 RQ_ALARM_NOTIFY_DISABLE Disable Alarm reporting via LonWorks
13 RQ_MANUAL_CTRL
14 RQ_REMOTE_CTRL
15 RQ_PROGRAM
Node Implementation
Enable concentration and alarm reporting
Disable concentration and alarm
reporting via LonWorks
Re-propagate nvoConc and alarms
Update alarm status, over-rides AlarmSetTime
Notify of request mask implementation
Concentration and alarm reporting enabled.
Reset latched alarm
117
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