Honeywell W7750A specifications Direct Access And Special Points

Models: W7750A

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Table 27. Direct Access And Special Points.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Digital Stateor Value ofState

 

E-Vision (M, P,S)

 

 

DirectAccess

 

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

User Address

NvName

Field Name

(Metric) or States plus Range

Default

Share

Map

Test

Comments

 

 

 

Engineering Units: English

 

 

 

 

 

 

 

 

DestManMode

nviManualMode

 

MODE_ENABLE

0

MODE_ENABLE

 

X

X

X

 

ManualMode is an input which is used to disable the Excel 10s control algorithms

 

 

 

MODE_DISABLE

1

 

 

 

 

 

 

and to manually set the physical outputs. ManualMode remains unchanged until

 

 

 

MODE_MANUAL

2

 

 

 

 

 

 

another mode has been commanded or an application restart has been performed.

 

 

 

SUPPRESS_ALARMS

3

 

 

 

 

 

 

See the Data1.mode for more details.The valid enumerated values are:

 

 

 

UNSUPPRESS_ALARMS

4

 

 

 

 

 

 

MODE_ENABLE enables the node so that the control algorithm determines the

 

 

 

 

 

 

 

 

 

 

 

operating mode, and controls the physical outputs. MODE_ENABLE is the default

 

 

 

 

 

 

 

 

 

 

 

state after power restore or application restart. If the mode was MANUAL and

 

 

 

 

 

 

 

 

 

 

 

nviManualMode is set to MODE_ENABLE, the node then goes through

 

 

 

 

 

 

 

 

 

 

 

application_restart.MODE_DISABLE sets the node to the DISABLED_MODE. The

 

 

 

 

 

 

 

 

 

 

 

alarm NODE_DISABLED is initiated, all control loops are disabled, and the physical

 

 

 

 

 

 

 

 

 

 

 

outputs are turned off. The physical inputs, network variable inputs, and network

 

 

 

 

 

 

 

 

 

 

 

variable outputs are still functioning when the node is in the DISABLED_MODE.

 

 

 

 

 

 

 

 

 

 

 

MODE_MANUAL sets the node into the MANUAL mode. If MANUAL is selected, the

 

 

 

 

 

 

 

 

 

 

 

controller enters Test Mode (manual override of outputs). The alarm

 

 

 

 

 

 

 

 

 

 

 

NODE_DISABLED is initiated, all control loops are disabled, and the physical

 

 

 

 

 

 

 

 

 

 

 

outputs are controlled manually as commanded by nviManValue. The nodes

 

 

 

 

 

 

 

 

 

 

 

configuration variables and nviManValue are used to set valves, dampers, and / or

 

 

 

 

 

 

 

 

 

 

 

digital output to the desired manual positions or state(s). The physical inputs,

 

 

 

 

 

 

 

 

 

 

 

network variable inputs, and network variable outputs are still functioning when the

 

 

 

 

 

 

 

 

 

 

 

node is in the MANUAL mode.SUPPRESS_ALARMS causes nvoAlarm.type to be

 

 

 

 

 

 

 

 

 

 

 

set to ALARM_NOTIFY_DISABLED, and AlarmLog to no longer record alarms. If

 

 

 

 

 

 

 

 

 

 

 

alarms are suppressed, UNSUPPRESS_ALARMS causes Alarm.type and

 

 

 

 

 

 

 

 

 

 

 

AlarmLog to be returned to reporting alarms. See Alarm for more details. All

 

 

 

 

 

 

 

 

 

 

 

unspecified values are the same as MODE_ENABLE.

 

 

 

 

 

 

 

 

 

 

 

 

TestMode

nviManValue

OutDrive

NORMAL_OP

0

NORMAL_OP

 

 

 

 

 

OutDrive ManValue is used for Factory Testing only.

 

 

 

OUT_1_ON

1

 

 

 

 

 

 

 

 

 

 

OUT_2_ON

2

 

 

 

 

 

 

 

 

 

 

OUT_3_ON

3

 

 

 

 

 

 

 

 

 

 

OUT_4_ON

4

 

 

 

 

 

 

 

 

 

 

OUT_5_ON

5

 

 

 

 

 

 

 

 

 

 

OUT_6_ON

6

 

 

 

 

 

 

 

 

 

 

OUT_7_ON

7

 

 

 

 

 

 

 

 

 

 

OUT_8_ON

8

 

 

 

 

 

 

 

 

 

 

ALL_OUT_OFF

9

 

 

 

 

 

 

 

 

 

 

ALL_OUT_ON

10

 

 

 

 

 

 

 

 

 

 

DISABLE_OUT

11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TestHCPos

nviManValue

sbManHeatCoolPosS0

percentage

 

0

 

 

 

 

X

During MANUAL mode, ManHeatCoolPos sets the modulating position of the

 

 

 

-127 to 127

 

 

 

 

 

 

 

heating or cooling motor (if configured) to the specified position. If ManHeatCoolPos

 

 

 

 

 

 

 

 

 

 

 

is less than 0 or greater than 100, the motor is overdriven for a period longer than

 

 

 

 

 

 

 

 

 

 

 

the motor time to ensure that it is at the end of travel. The heat motor is driven when

 

 

 

 

 

 

 

 

 

 

 

HeatCoolMode is 1 and the cool motor is driven when HeatCoolMode is 0. At the

 

 

 

 

 

 

 

 

 

 

 

moment when the node transfers to MANUAL_MODE or HeatCoolMode is changed,

 

 

 

 

 

 

 

 

 

 

 

ManHeatCoolPos is set the current motor position.

 

 

 

 

 

 

 

 

 

 

 

 

TestEconPos

nviManValue

sbManEconPosS0

Percentage

 

0

 

 

 

 

X

During MANUAL mode, ManEconPos sets the modulating position of the

 

 

 

-127 to 127

 

 

 

 

 

 

 

economizer motor (if configured) to the specified position. If ManEconPos is less

 

 

 

 

 

 

 

 

 

 

 

than 0 or greater than 100, the motor is overdriven for a period longer than the motor

 

 

 

 

 

 

 

 

 

 

 

time to ensure that it is at the end of travel. At the moment when the node transfers

 

 

 

 

 

 

 

 

 

 

 

to MANUAL_MODE, ManEconPos is set the current motor position.

 

 

 

 

 

 

 

 

 

 

 

 

EXCEL 10 W7750A,B,C CONSTANT VOLUME AHU CONTROLLER

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Honeywell W7750A specifications Direct Access And Special Points