Honeywell W7750A specifications Energy Management Points

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Table 22. Energy Management Points.

User Address

NvName

Field Name

(Metric) or States plus Range

DigitalStateor ValueofState

Default

E-Vision(M,P,S)

Share

Map

DirectAccess

HardwareConfig.

ManualConfig.

FailureDetect

Comments

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

Engineering Units: English

DestDlcShed

nviDlcShed

0 to 1

0

M

X

X

X

X

X

DlcShed is an input from an energy management system. When DlcShed is

0, the temperature control algorithm operates in a normal mode. When

DlcShed is non-zero, the setpoint is shifted by Aux1SetPt.DlcBumpTemp in

the energy saving direction.

DestSchedOcc

nviTodEvent

CurrentState

OC_OCCUPIED

0

OC_OCCUPIED

M

X

X

X

X

X

CurrentState indicates the current scheduled occupancy state to the node.

OC_UNOCCUPIED

1

CurrentState is used along with other occupancy inputs to calculate the

OC_BYPASS

2

effective occupancy of the node. The valid states and meaning are as

OC_STANDBY

3

follows: OC_OCCUPIED means the energy management system is

OC_NUL

255

specifying occupied. OC_UNOCCUPIED means the energy management

system is specifying that the space is presently unoccupied. OC_BYPASS

states that the energy management system is in bypass. OC_STANDBY

states that the energy management system has the space presently is

between occupied and unoccupied. OC_NUL states that no occupancy

state has been specified.

TodEventNext

nviTodEvent

NextState

OC_OCCUPIED

0

OC_OCCUPIED

M

X

X

NextState indicates the next scheduled occupancy state to the node. This

OC_UNOCCUPIED

1

information is required by the Excel 10 to perform the optimum start

OC_BYPASS

2

strategy. The space expected effective occupancy will be NextState in

OC_STANDBY

3

uiTimeToNextState minutes. The valid states and meaning are the same as

OC_NUL

255

for CurrentState.

Tuncos

nviTodEvent

uiTimeToNextState

minutes

0

M

X

X

TimeToNextState is the time in minutes until the next change of scheduled

0 to 2880

occupancy state.

nviBypass

value

0 to 100

0

Bypass.value:The bypass state of one node may be shared with the bypass

state of another node using nviBypass and nvoBypass. This allows a wall

module at one node to be used to over ride the scheduled occupancy of

another node. The node with Bypass bound normally does not have a wall

module. See the Data1.EffectOcc and Data1.OverRide for more details.

The valid states are as follows: If the state is SW_ON and the value is not

zero then the node should bypass the time of day schedule (subject to

occupancy arbitration logic). If the state is SW_NUL, the input is not

available because it is not bound, the input is no longer being updated by

the sender, or OC_BYPASS is no longer being called. This means that the

same as SW_OFF. If the state is SW_OFF or other and the value is don’t

care, the node should not bypass the time of day schedule. If the state is

SW_ON and the value is 0, then the node should not bypass the time of day

schedule. If the node receives this combination of state and value, then

state is set to SW_OFF.

DestBypass

nviBypass

state

SW_OFF

0

SW_NUL

M

X

X

X

X

Refer to nviBypass.value.

SW_ON

1

SW_NUL

255

SrcBypCt

nvoBypass

value

0 to 100

0

nvoBypass.value:nvoBypass is the current occupancy state of the node for

bypass schedule. The states have the following meanings: If the state is

SW_OFF and the value is 0, then Data1.EffectOcc is not OC_BYPASS. If

the state is SW_ON and the value is 100 percent, then Data1.EffectOcc is

OC_BYPASS.

SrcBypass

nvoBypass

state

SW_OFF

0

SW_NUL

M

X

X

Refer to nvoBypass.value.

SW_ON

1

SW_NUL

255

EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER