Honeywell W7750A specifications Swon

74-2958— 1

104

Table 26. LONMARK® /Open System Points. (Continued)

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

nviWindow

value

0 to 100

0

Window allows the window sensor from another node to be used as the

(SNVT_switch)

window sensor and is typically bound to nvoWindow of another node.

Window must show that the window is closed for 300 seconds before

Window is used as window closed. This makes it possible for several

window sensors to be ORed together by binding them all to nviWindow. If

any one bound window sensor shows window open, then Window shows

window open for up to 300 seconds after the last sensor shows window

closed. If the state is SW_OFF or SW_NUL, then the result is Window

Closed. If the state is SW_ON and the value is 0, then the result is Window

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

is set to SW_OFF. If the state is SW_ON and the value is not zero, then the

result is Window Open. NOTE: nviWindow is called nviEnergyHoldOff in

the LONMARK compliance profile.

DestWndw

nviWindow

state

SW_OFF

0

SW_NUL

M

X

X

X

X

See the preceding.

(SNVT_switch)

SW_ON

1

SW_NUL

255

SrcWndwCt

nvoWindow

value

0 to 100

0

X

See the preceding.NOTE: nvoWindow is called nviEnergyHoldOff in the

(SNVT_switch)

LonMark compliance profile.

SrcWndw

nvoWindow

state

SW_OFF

0

SW_NUL

M

X

X

Window allows the hard wired window sensor to be used by other nodes on

(SNVT_switch)

SW_ON

1

the network. The valid states are as follows: If the state is SW_OFF and the

SW_NUL

255

value is 0 then the result is Window Closed. If the state is SW_ON and the

value is 100 percent, the result is Window Open. If the state is SW_NUL

and the value is 0, the result is Window Sensor Not Configured. NOTE:

nvoWindow is called nviEnergyHoldOff in the LonMark compliance profile.

nviEcon

value

0 to 100

0

nviEcon allows one controller to determine the suitability of outdoor air for

(SNVT_switch)

free cooling and share this with many other nodes. When Econ.state is not

SW_NUL, then the local sensor selected by Config.EconEnable is ignored

and Econ is used instead. The inputs states have the following meanings: If

the state is SW_OFF or other and the value is don’t care, then the outdoor

air is not suitable for free cooling. If the state is SW_ON and the value is 0,

then the outdoor air is not suitable for free cooling. If the node receives this

combination of state and value, then state is set to SW_OFF. If the state is

SW_ON and the value is not zero, then outdoor is suitable for free cooling.

If the state is SW_NUL, then the network variable is not bound, the

communications path from the sending node has failed, or the sending

node has failed. Outdoor air is not suitable for free cooling.

DestEconEnable

nviEcon

state

SW_OFF

0

SW_NUL

M

X

X

X

X

For nviEcon.state, refer to nviEcon.value.

(SNVT_switch)

SW_ON

1

SW_NUL

255

EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER