EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER
74-2958—166
All of the NvName values that are stored in EEPROM memor
have a prefix of
nci
.
NOTE: These parameters are stored in EEPROM and are
limited to 10,000
writes
. Do NOT use them as
outputs from Control Strate
ies,Time Pro
rams, or
Switchin
Tables. If these points are chan
ed more
than 10,000 times, irreversible hardware failure
results
Tables 20 throu
h 28 provide point attributes as follows:
En
ineerin
Units— This field indicates the point valid ran
e and
displa
ed En
ineerin
Unit. For di
ital points,
the valid states and the correspondin
enumerated values are shown.
Default— The value or state of the point on controller
start-up.
E-Vision
M
Monitor— These points are viewable within the E-Vision
Controller Monitorin
on-line screen.
P
Parameter—These points refer to control parameters
settable in the Application Selection dialo
boxes in E-Vision.
S
Schematic—These points appear in E-Vision monitor
mode
raphics.
Shareable— These points can be set up for data sharin
in
Command Multiple Points, Read Multiple
Points, or Refer Excel 10 Points as either a
data source or a destination.
Mappable— These points can be converted into a C-Bus
point used b
C-Bus devices. A mappable point
has a one-to-one relationship with a C-Bus
User Address.
Direct
Access— These points are accessible throu
h the
Subs
stem Points mechanism in XBS.
Hardware
Confi
.— These are points that involve controller I/O
confi
uration. An
chan
e to Hardware Confi
.
points causes the W7750 to perform an
application reset; therefore, these points can
onl
be modified off-line.
Manual
Confi
.— These points are used to set the controller
outputs when in manual mode. The W7750 is
placed in manual mode throu
h a menu
selection in the E-Vision Controller Monitor
screen.
Test— These points can be controlled in E-Visions test
mode that is used for field checkout/ debu
in
.
Failure Detect
Input Point— These points need an update periodicall
or a
communication alarm is
enerated. The failure
detect mechanism is onl
active when the NV is
bound
bindin
s are confi
ured usin
Refer
Excel 10 points
. The time between the updates
is user settable.
Non-Failure Detect
Input Point— These points
which are NVs that are bound or
unbound
do not check for an update
periodicall
and do not
enerate an alarm.
NOTES:
1. Mapped points can be viewed and chan
ed,
if
needed
, on the XI581, XI582 and XI584 C-Bus
devices and on an XBS central and on E-Vision.
2. All Excel 10 points, mappable and calibration,
confi
uration and internal data sharin
points, can
be viewed and chan
ed,
as allowed
, via Direct
Access
DA
mode in the XBS subs
stem menu
or via XI584.
