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EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER
97 74-2958—1
OvrdPriority nciConfig OverridePriority LAST
NET
0
1
NET P X X OverridePriority configures the override arbitration between ManOcc,
Bypass.state, and the wall module override button. If OverridePriority is 0
(LAST), then the last command received from either the wall module or
iManOcc determines the effective override state. If OverridePriority is 1
(NET), this specifies that when ManOcc is not OC_NUL, that the effective
occupancy is ManOcc regardless of the wall module override state.
UseWallModStpt nciConfig UseWallModStPt FALSE
TRUE
0
1
TRUE P X X UseWallModStpt specifies the OC_OCCUPIED temperature setpoint
source. If UseWallModStpt is 0 (FALSE), then the occupied TempSetPts
are used when the effective occupancy is OC_OCCUPIED. If
UseWallModStpt is 1 (TRUE), then the wall modules setpoint knob is used
when the effective occupancy is OC_OCCUPIED. SetPt overrides all.
SetPtKnob nciConfig SetPntKnob OFFSET
ABSOLUTE_MIDDLE
0
1
ABSOLUTE_MIDDLE P X X SetPntKnob specifies the usage of the setpoint knob when
UseWallModStPt is TRUE. When SetPntKnob is 0 (ABSOLUTE_MIDDLE),
the setpoint knob directly determines the center point of between the
OC_OCCUPIED cooling and heating setpoints. When SetPntKnob is 1
(OFFSET), the effective setpoint is calculated by adding the remote
setpoint potentiometer value (center scale = 0) to the appropriate value of
TempSetPts.
OvrdType nciConfig OverrideType NONE
NORMAL
BYPASS_ONLY
0
1
2
NORMAL P X X OverrideType specifies the behavior of the override button. If the
OverrideType is 0 (NONE) then the override button is disabled. An
OverrideType of 1 (NORMAL), causes the override button to set the
OverRide state to OC_BYPASS for Aux2SetPt.BypassTime seconds when
the override button has been pressed for approximately 1 to 4 seconds, or
to set the OverRide state to UNOCC when the button has been pressed for
approximately 4 to 7 seconds. When the button is pressed longer than
approximately 7 seconds, then the OverRide state is set to OC_NUL. If the
OverrideType is 2 (BYPASS_ONLY), the override button sets the OverRide
state to OC_BYPASS for Aux2SetPt.BypassTime seconds on the first
press. On the next press, the OverRide state is set to OC_NUL.
Table 25. Configuration Parameters. (Continued)
User Address NvName Field Name
Engineering Units: English
(Metric) or States plus Range
Digital State or
Value of State
Default
E-Vision (M, P, S)
Share
Map
Direct Access
Hardware Config.
Manual Config.
Test
E-Vision Legend: (M) Monitor, (P) Parameter, (S) Schematic
NOTE: Physical I/O points that are configurable are in Table 20.
Comments
Table 26. L
ON
M
ARK
®/Open System Points.
User Address NvName Field Name
Engineering Units: English
(Metric) or States plus Range
Digital State or
Value of State
Default
E-Vision (M, P, S)
Share
Map
Direct Access
Hardware Config.
Manual Config.
Failure Detect
E-Vision Legend: (M) Monitor, (P) Parameter, (S) Schematic
Comments
nciNodeSendT
(SNVT_time_sec)
Seconds 0 The maximum time between updates of network variable outputs from the
node object.
nciRtuSendT
(SNVT_time_sec)
Seconds 0 The SGPUC and SGPU time (heart beat time) between updates of network
variable outputs.NOTE: RtuSendT should be set to 55 seconds by a
management node to be compatible with a Honeywell system.
nciRtuRcvT
(SNVT_time_sec)
Seconds 0 This is the failure detection time for network SGPUC and SGPU variables
outputs.NOTE: RtuRcvT should be set to 300 seconds by a management
node to be compatible with a Honeywell system.