Honeywell Excel 800 SYSTEM Installation And Commissioning Instructions page 70

LON Software Interface Description
Analog Output Feedback – nvoAoPosnFb[ ]
This value represents the current status of the analog output
including feedback related to manual override initiated from
the manual override.
This is typically used for monitoring purposes at a
supervisory station or for diagnostic purposes.
Valid Range
Value State Current analog output position
Analog output position due to
0.5 ... 100% 1
normal control by nviAoSwitch or
nviAoValuePct
0% (OFF) 0
Manual override position via the
0 ... 100% -1
manual override panel
Current position unknown or
0xFF -1 synchronization active,
analog output not configured
Table 67 Analog output feedback range
Transmission
This variable is transmitted immediately when the
corresponding network input variable has changed more
than 1% or immediately as an answer to an
nviAoValuePct[ ] or nviAoSwitch[ ] update.
Default Service Type
The default service type is unacknowledged.
EN1B-0375GE51 R0910
Analog Output Command – nviAoSwitch[ ]
This network variable is used to drive the analog output to
0 ... 100%.
It is typically bound to a L
output level 0 ... 100%.
If both nviAoSwitch[ ] and nviAoValuePct[ ] receive valid
values, nviAoValuePct[ ] will have priority.
Default Value
Value = 0
State = –1
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Excel 800
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