Honeywell W7761A Temperature Relative Humidity, Air Flow, CO 2 Concentration, Enthalpy

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

Appendix C. Complete List of Excel 10 W7761A Remote I/O Device User Addresses.

C1. Input/Output Points.

C2. Control Parameters.

C3. Status Points.

C4. Configuration Parameters.

C5. Direct Access And Special Points.

Table C0 lists the applicable Engineering Units for the analog points found in the W7761A.

Table C0. Engineering Units For Analog Points.

	English Units (Inch-Pound)		Standard International Units (SI)
Measured Item	Description	Abbreviation	Description	Abbreviation
Temperature	Degrees Fahrenheit	F	Degrees Celsius	C
Relative	Delta Degrees Fahrenheit	DDF	Degrees Kelvin	K
Temperature
Relative Humidity	Percent	%	Percent	%
Air Flow	Cubic Feet per Minute	CFM	Meters cubed per hour	m3h
CO2 Concentration	Parts Per Million	PPM	Parts Per Million	PPM
Enthalpy	British Thermal Units per Pound	btu/lb	kiloJoules/kilogram	kJ/kg
	of Air
Differential	Inches of Water Column	inw	kiloPascal	kPa
Pressure

Tables C1 through C5 list all network variables associated with the W7761A Controller and the default User Address names. Table C1 lists the Network Variable Inputs and Outputs, which are stored in RAM memory. Table C2 lists the Control Parameters, which are the values stored in the controllers EEPROM memory.

NOTE: Table C2. User Addresses For W7761A Control Parameters. (Control Parameters are stored in EEPROM - limited to 10,000 writes. Do NOT use as outputs from Control Strategies, Time Programs, or Switching Tables. If these points are changed more than 10,000 times, irreversible hardware failure results).

Tables provides point attributes as follows:

Engineering
Units—	This field indicates the point valid range and displayed Engineering Unit. For digital points, the valid states
	and the corresponding enumerated values are shown.
Default—	The value or state of the point on controller start-up.

Shareable— The point can be set up for data sharing in Command Multiple Points, Read Multiple Points, or Refer Excel 10 Points as either a data source or a destination.

Mappable—	The point can be converted into a C-Bus point used by C-Bus devices. A mappable point has a one-to-one
Direct	relationship with a C-Bus User Address.
Access—	The point is accessible through the Subsystem Points mechanism in XBS.
E-Vision
Monitor—	These points are viewable within the E-Vision Controller Monitoring on-line screen. PAR refers to control
Hardware	parameters that are set in the Application Selection dialog boxes in E-Vision.
Config—	These are points that involve controller I/O configuration. Any change to HW Config. points causes the
	W7761A to perform an application reset; therefore, these points can only be modified off-line.
Manual—	These points are used to set the controller outputs when in manual mode. The W7761A is placed in manual
	mode through a menu selection in the E-Vision Controller Monitor screen.
Fixable—	These input points can be set to a constant value in the E-Vision Controller Monitor screen.

NOTES:

1.Mapped points can be viewed and changed, if applicable, on C-Bus devices such as an XI581, XI582 and XI584 and on an XBS central and E-Vision.

2.All Excel 10 points, mappable, calibration, configuration and internal data sharing points, can be viewed and changed, as allowed, via Direct Access (DA) mode in the XBS subsystem menu or via XI584.

3.E-Vision - These points are displayed to the user and polled during the E-Vision monitor function. Monitor (M) indicates the point appears in the Software list box. Schematic (S) indicates the point is to be displayed on the schematic air handler diagram directly. Calibrate (C) - These points are calibratible and the calibration dialog (either the temperature or air flow dialog) is displayed. These points are displayed in a listbox by selection of the menu item Controller, Calibration. When the user double clicks on these points the calibration dialog is displayed. Parameter (P) - This information is displayed to the user in the Application Selection screens. These fields are read/write when offline and read only when online.

4.Manual - These points can be placed in the manual mode. When the user double clicks on these points the manual dialog is displayed, this contains radio buttons; one for Auto and one for Manual.

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