Honeywell W7750A Bypasstimerfield, Tempcontrolptfield, Spacetempfield, Dischargetempfield

74-2958— 1

88

Table 23. Status Points. (Continued)

Value

Digital

E-Vision

Direct

Hardware

Manual

E-Vision Legend: (M) Monitor, (P) Parameter, (S) Schematic

User Address

NvName

Field Name

(Metric) or States plus Range

ofState

Stateor

Default

(M, P,S)

Share

Map

Access

Config.

Config.

Test

Comments

Engineering Units: English

WSHPEnable

nvoData1

WSHPEnable

FALSE

0

FALSE

X

WSHPEnable: WSHPEnable reports the state of the current state of

(nvoCtlDataG1)

TRUE

1

nviWSHPEnable. The states for nviWSHPEnable are as follows: If

nviWSHPEnable.state is SW_OFF and the nviWSHPEnable.value is 0,

then WSHPEnable is 0 (Disable Water Source Heat Pump). If

nviWSHPEnable.state is SW_ON and the nviWSHPEnable.value is 0, then

WSHPEnable is 0 (Disable Water Source Heat Pump). If

nviWSHPEnable.state is SW_ON and the nviWSHPEnable.value is not 0,

then WSHPEnable is 1 (Enable Water Source Heat Pump). If

nviWSHPEnable.state is SW_NUL and the nviWSHPEnable.value is any

value, then WSHPEnable is 1 (Enable Water Source Heat Pump when

nviWSHPEnable is not bound to another node).

nvoData2

FieldNo

UPDATE_ALL_FIELDS

UPDATE_ALL_FIELDS

nvoData2. FieldNo: nvoData2 and nvoCtlDataG2 are output network

(nvoCtlDataG2)

BYPASS_TIMER_FIELD

variables indicating the node status. The information contained in these

TEMP_CONTROL_PT_FIELD

network variables are typically used to display the node status on an

SPACE_TEMP_FIELD

operator terminal, used in a trend log, or used in a control process. The

DISCHARGE_TEMP_FIELD

information contained in nvoCtlDataG2 and nvoData2 are identical.

DISCHARGE_SET_PT_FIELD

nvoData2 is a polled network variable and must be polled by the receiver.

RETURN_TEMP_FIELD

nvoCtlDataG2 uses the SGPUC mechanism. FieldNo indicates which other

RETURN_HUMIDITY_FIELD

data field in the SGPUC network variable has changed since the last time it

RETURN_ENTHALPY_FIELD

was sent on the network according to the SGPUC mechanism.

OUTDOOR_TEMP_FIELD

OUTDOOR_HUMIDITY_FIELD

OUTDOOR_ENTHALPY_FIELD

FILTER_PRESSURE_FIELD

SPACE_CO2_FIELD

MONITOR_VOLTS_FIELD

COOL_POS_FIELD

HEAT_POS_FIELD

ECON_POS_FIELD

UPDATE_NO_FIELDS

BypTimer

nvoData2

uiBypassTimer

minutes

0

X

uiBypassTimer: The time left in the bypass timer is uiBypassTimer minutes.

(nvoCtlDataG2)

0 to 2880

If uiBypassTimer is zero, then the bypass timer is not running. If

uiBypassTimer is not zero, it is decremented every minute.

RmTempActSpt

nvoData2

siTempControlPtS7

Degrees F

SI_INVALID

X

siTempControlPtS7: The current temperature control point (such that, the

(nvoCtlDataG2)

50 to 85

current actual space temperature setpoint which the controller is presently

Degrees C

trying to maintain in the conditioned space) is calculated from the various

(10 to 29)

Setpoints, operating modes, network variable inputs, and optimum start-up

parameters. The final result is stored in siTempControlPtS7.

RmTemp

nvoData2

siSpaceTempS7

Degrees F

SI_INVALID

siSpaceTempS7: siSpaceTempS7 is the space temperature used by the

(nvoCtlDataG2)

40 to 100

control process and is read from another node via nviSpaceTemp or a local

Degrees C

sensor via nvoIO.siSpaceTempS7 or nvoIO.siReturnTempS7. If the network

(4 to 38)

input is not SI_INVALID, then the network input has priority. The local

sensor is selected by nciConfig.ControlUsesRtnAirTemp. When

nciConfig.ControlUsesRtnAirTemp is 0, then the space temperature sensor

is selected. When nciConfig.ControlUsesRtnAirTemp is 1, then the return

temperature sensor is selected. If the network input and the selected local

sensor has failed or are not configured, siSpaceTempS7 is SI_INVALID.

EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER