Honeywell W7761A Users Manual

W7761A to the manual 045b5723-ded5-4957-9473-7bd010c1b4a2

2015-01-23

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Excel 10 W7761A Remote Input/Output
Device
CONTENTS
Table of Contents

Introduction

...........................................................................................................................
Description of Devices .......................................................................................
Control Application .............................................................................................
Control Provided.................................................................................................
Products Covered...............................................................................................
Organization of Manual ......................................................................................
Applicable Literature ..........................................................................................
Product Names ..................................................................................................
Agency Listings ..................................................................................................
Abbreviations and Definitions.............................................................................
Construction .......................................................................................................
Controllers .....................................................................................................
Performance Specifications ......................................................................
Wall Modules.................................................................................................
Configurations ....................................................................................................
Mixed-Output-Type Control ...........................................................................
Occupancy Sensor ........................................................................................
Window Open/Closed Digital Input................................................................
Wall Module Options .....................................................................................
Dirty Filter Monitor .........................................................................................
Indoor Air Quality (IAQ) Override...................................................................

4
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15
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17

...........................................................................................................................
Overview ............................................................................................................
Step 1. Plan The System....................................................................................
Step 2. Determine Other Bus Devices Required................................................
Step 3. Lay Out Communications and Power Wiring .........................................
E-Bus Layout .................................................................................................
Power Wiring .................................................................................................
Power Budget Calculation Example:.........................................................
Line Loss: .................................................................................................
Step 4. Prepare Wiring Diagrams ......................................................................
General Considerations.................................................................................
W7761A Devices...........................................................................................
E-Bus Termination Module ............................................................................
Step 5. Order Equipment....................................................................................
Step 6. Configure Devices..................................................................................
Step 7. Troubleshooting .....................................................................................
Troubleshooting Excel 10 Controllers and Wall Modules ..............................
Temperature Sensor and Setpoint Potentiometer Resistance Ranges.........
Alarms ...........................................................................................................
Broadcasting the Service Message ...............................................................
W7761A Controller Status LEDs ...................................................................
T7780 DDWM Bypass Pushbutton................................................................

18
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38

Application Steps

List of Figures

........................................................................................................................... 2
Fig. 1. Typical system overview. ........................................................................ 4
Fig. 2. Typical W7761A control application. ....................................................... 5
Fig. 3. Excel 10 W7761A Remote I/O Device. ................................................... 10
Fig. 4. W7761A construction.............................................................................. 11

U.S. Registered Trademark
Copyright  1998 Honeywell Inc. • All Rights Reserved
LonWorks LonMark and LonMark logo are Registered
Trademarks of Echelon Corporation.

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EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Fig. 5. DIN rail adapters..................................................................................... 12
Fig. 6. T7770A,B,C,D construction (T7770A,C shown). .................................... 15
Fig. 7. T7780 construction. ................................................................................ 16
Fig. 8. Connecting the portable operator terminal to the E-Bus. ....................... 18
Fig. 9. Bus wiring layout for doubly terminated daisy-chain E-Bus segment. .... 20
Fig. 10. Bus wiring layout for two singly terminated E-Bus segments. .............. 21
Fig. 11. NEMA class 2 transformer voltage output limits................................... 22
Fig. 12. Power wiring details for one Excel 10 per transformer. ........................ 22
Fig. 13. Power wiring details for two or more Excel 10s per transformer. ......... 23
Fig. 14. Transformer power wiring details for one Excel 10 used in UL 1995
equipment (U.S. only)........................................................................................ 23
Fig. 15. Attaching two or more wires at terminal blocks. ................................... 25
Fig. 16. Typical T7770A and C7770A wiring diagram. ...................................... 26
Fig. 17. Typical Humidity and Enthalpy (4 to 20 mA) sensor wiring diagram. ... 27
Fig. 18. Typical Window and Occupancy sensor wiring diagram. ..................... 28
Fig. 19. Typical PWM Valve Actuator and miscellaneous fan control to W7761A.29
Fig. 20. Typical Pneumatic transducer to (Series 60 - Floating) W7761A......... 30
Fig. 21. Typical E-Bus termination module wiring diagrams.............................. 31
Fig. 22. E-Bus termination wiring options. ......................................................... 32
Fig. 23. Temperature sensor resistance plots. .................................................. 36
Fig. 24. Location of the Service Pin Button. ...................................................... 37
Fig. 25. LED location on W7761A. .................................................................... 38
Fig. 26. Bypass pushbutton location on T7780 DDWM..................................... 39
List of Tables

Appendices

...........................................................................................................................
Table 1. Agency Listings. ..................................................................................
Table 2. List Of Available Points........................................................................
Table 3. Application Steps.................................................................................
Table 4. E-Bus Configuration Rules And Device Node Numbers......................
Table 5. VA Ratings For Transformer Sizing. ....................................................
Table 6. Field Wiring Reference Table..............................................................
Table 7. W7761A I/O Description......................................................................
Table 8. Excel 10 W7761A Device Ordering Information. .................................
Table 9. Excel 10 Alarms...................................................................................
Table 10. LED States. .......................................................................................
...........................................................................................................................
Appendix A. Using E-Vision for Commissioning W7761A Controllers...............
SENSOR CALIBRATION ..............................................................................
CUSTOM MAPPING .....................................................................................
ADDING ANALOG INPUTS - ENTHALPY (4 to 20 mA)...........................
ADDING OTHER VOLTAGE/CURRENT SENSORS ...............................
Table A-1. Default PID Parameters..........................................................
ADDING DIGITAL INPUTS ......................................................................
Table A-2. Supported Digital Input Types ................................................
ADDING DIGITAL OUTPUTS ..................................................................
Table A-2. Supported Digital Output Types .............................................
Appendix B. Sequences of Operation. ..............................................................
Common Operations.....................................................................................
Room Temperature Sensor (RmTemp) ...................................................
Window Sensor (StatusWndw) ................................................................
Dirty Filter Monitor....................................................................................
Series 60 Modulating Control...................................................................
Pulse Width Modulating (PWM) Control ..................................................
Indoor Air Quality (IAQ) Override .............................................................
Appendix C. Complete List of Excel 10 W7761A Remote I/O Device User
Addresses..........................................................................................................
Table C0. Engineering Units For Analog Points. ..........................................
Table C1.Input/Output Points. ......................................................................
Table C2. Control Parameters. .....................................................................
Table C3. Status Points. ...............................................................................
Table C4. Configurations Parameters. .........................................................
Table C5. Direct Access And Special Points. ...............................................
Appendix D. Q7750A Excel 10 Zone Manager Point Estimating Guide. ...........
Approximate Memory Size Estimating Procedure. .......................................
Fig. D-1 Point capacity estimate for Zone Manager.................................
Appendix E. Sensor Data for Calibration. ..........................................................
Resistance Sensors......................................................................................
Voltage/Current Sensors. .............................................................................
2

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12
18
19
22
24
25
33
37
38

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74

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

INTRODUCTION
Description of Devices
The W7761A, Excel 10 Remote Input/Output device, provides auxiliary inputs and outputs for use with an Excel 10 Zone
Manager and Excel 10 controllers over the Echelon® LonWorks®E-Bus. These I/O points are configured with the E-Vision
tool. The W7761A device uses Echelon® LonWorks® communication technology and a new free topology twisted pair
transceiver (FTT) for greater network installation flexibility. The Excel 10 RIO device can be combined with the Excel 10 Zone
Manager (FTT), other Excel Controllers, and the Excel Building Supervisor, to provide a complete and low cost control solution
for small to large commercial buildings.
The Q7750A Excel 10 Zone Manager is a communications interface that allows devices on the E-Bus network to communicate
with devices on the standard EXCEL 5000® System C-Bus. Fig. 1 shows an overview of a typical system layout. The Q7750A
also provides some control and monitoring functions.
Q7752A
FTT E-BUS
SERIAL
ADAPTER

C-BUS COMMUNICATION NETWORK

EXCEL 10
Q7750A
FTT ZONE
MANAGER

PERSONAL COMPUTER TOOLS
E-VISION
CARE

EXCEL 500

EXCEL BUILDING SUPERVISOR

C-BUS TO E-BUS
INTERFACE DEVICE
FTT E-BUS COMMUNICATIONS NETWORK

EXCEL 10
W7750B
CVAHU
CONTROLLER

Q7751A
FTT
E-BUS
ROUTER

EXCEL 10
T7770E
WALL
MODULE

30 29

28 27 26

30 29

28 27 26

25 24 23
22

FTT E-BUS
COMMUNICATIONS
NETWORK

21 20 19
18

11 12 13
14

EXCEL 10
T7780
DIGITAL
DISPLAY
WALL
MODULE

EXCEL 10 W7751F
PANEL PLENUM
MOUNT VERSION
VARIABLE AIR
VOLUME
CONTROLLER

31
25 24 23
22

24
DI-4 GND
DI-3 DI-2 GND
24
DI-1 VAC VAC
COM

Q7740A
2-WAY
REPEATER

FTT E-BUS COMMUNICATIONS NETWORK

17 16

1
2
3
4
5
6
OUT OUT OUT
7
8
OUT OUT OUT
OUT OUT

EXCEL 10 W7752 FTT FAN
COIL UNIT CONTROLLER

30 29

28 27 26

25 24 23
22

24
DI-4 GND
DI-3 DI-2 GND
24
DI-1 VAC VAC
COM

21 20 19
18

17 16
1
2
3
4
5
6
OUT OUT OUT
7
8
OUT OUT OUT
OUT OUT

EXCEL 10
REMOTE
INPUT/
OUTPUT
DEVICE

auto 0 1

E LED BYPASS
SNSR GND SET
GND
PT AI-1 GND A1-2
AI-3 GND AI-4
OHM
22VDC
OHM V/mA
1
2
3
V/mA OUT
4 5 6
7

E-BUS

11 12 13
14

E LED BYPASS
SNSR GND SET
GND
PT AI-1 GND A1-2
AI-3 GND AI-4
OHM
22VDC
OHM V/mA
1
2
3
V/mA OUT
4 5 6
7

E-BUS
JACK

EXCEL 10 W7753A UNIT
VENTILATOR CONTROLLER

EXCEL 10 T7770
WALL MODULE

E-BUS

11 12 13
14

E-BUS
JACK

M12884

Fig. 1. Typical system overview.

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

Control Application
The W7761A, Excel 10 Remote Input/Output device, provides auxiliary inputs and outputs for use with an Excel 10 Zone
Manager and Excel 10 controllers over the Echelon® LonWorks®E-Bus. The W7761A Remote Input/Output Device can be
connected to outdoor air temperature and humidity sensors that can be used by other Excel 10 controllers on the E-Bus or
Excel 5000 controllers on the C-Bus through the Excel 10 Zone Manager. This would allow the controllers to use their physical
inputs for monitoring other elements such as return humidity, IAQ, etc. to achieve better control. The W7761A can be used to
average many space temperature sensors that are located in a zone that is controlled by the W7750 Constant Volume AHU
Controller. The W7761A device has 8 Digital Outputs which may be Discrete, Modulating or Floating. For example, this allows
the control of lighting zones, miscellaneous exhaust or ventilation fans, miscellaneous pumps, and can enable freeze
protection. See Fig. 2.

OA
HUMIDITY

MISC.
FANS

PUMPS

EXCEL 10
W7761A
REMOTE
INPUT/OUTPUT

OA
TEMPERATURE

LIGHTING
CONTROL

OCCUPANCY
SENSOR
EXCEL 10 T7770
WALL MODULE

WINDOW CONTACT

M12885

Fig. 2. Typical W7761A control application.

Control Provided
The W7761A was not intended to control staged or modulating heating/cooling coils, mixed air economizer dampers, or system
fan/heat pump units. The W7761A contains inputs and outputs, but no control software. All control that would be associated
with the inputs and outputs in the W7761A would be accomplished though the Excel Zone Manager and would not be suitable
for VAV control, temperature control, or any control function that would require less than a 30 second update rate.

Products Covered
This System Engineering Guide describes how to apply the W7761A Excel 10 Remote Input/Output Device and related
accessories to typical applications. The specific devices covered include:
• W7761A Remote I/O device.
• T7770 A through D Wall Modules.
• Q7750A Excel 10 Zone Manager.
• Q7751A Router (FTT to FTT only).
• Q7752A Serial Interface Adapter.
• Q7740A,B Repeaters (2-way and 4-way).
• 209541B FTT Termination Module.

Organization of Manual
This manual is divided into three basic parts: the Introduction, the Application Steps, and the Appendices that provide
supporting information. The Introduction and Application Steps 1 through 5 provide the information needed to make accurate
material ordering decisions. Application Step 6 and the Appendices include configuration engineering that can be started using
Excel E-Vision PC Software after the devices and accessories are ordered. Application Step 7 is troubleshooting.
The organization of the manual assumes a project is being engineered from start to finish. If an operator is adding to, or is
changing an existing system, the Table of Contents can provide the relevant information.

Applicable Literature
The following list of documents contains information related to the Excel 10 W7761 Remote I/O Device and the EXCEL 5000®
System in general.
Form No.
Title
4

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
74-2698
74-2956
74-2697
74-2955
74-2950
74-2952
74-2954
74-2858

Excel 10 W7761A Device Specification Data
Excel 10 W7750A,B Controller Specification Data
T7770A through G Wall Module Specification Data
T7780 Digital Display Wall Module Specification Data
Excel 10 Q7750A, Zone Manager Specification Data
Excel 10 Q7751A Router Specification Data
Excel 10 Q7752A Serial Interface Specification Data
Excel 10 Q7740A,B FTT Repeaters Specification Data

95-7539
95-7521
95-7538
95-7558
95-7509
95-7510
95-7511
95-7516
95-7555
95-7554

Excel 10 W7761A Device Installation Instructions
Excel 10 W7750A,B Controller Installation Instructions
T7770 Wall Module Installation Instructions
T7780 Digital Display Wall Module Installation Instructions
Excel 10 Q7750A Zone Manager Installation Instructions
Excel 10 Q7751A Router Installation Instructions
Excel 10 Q7752A Serial Interface Installation Instructions
Excel 10 SLTA Connector Cable Installation Instructions
Excel 10 Q7740A,B FTT Repeaters Installation Instructions
Excel 10 209541B FTT Termination Module Installation Instructions

74-2588
74-5587
74-5577
74-2039
74-5018

Excel E-Vision User’s Guide
CARE User’s Manual
CARE Icon Guide
XBS User’s Manual
XBS Application Guide

Product Names
The W7761A Remote I/O Device is available in one model:
• W7761A Remote Input/Output Device.
The T7770 Wall Module is available in five models:
• T7770A1xxx Wall Module with temperature sensor only - not applicable to the RIO device (jumper switches the sensor from
20Kohm NTC to a linearized version of a 20 Kohm NTC used with the W7751A,C,E,G).
• T7770A2xxx Wall Module with temperature sensor and E-Bus network connection.
• T7770B Wall Module with temperature sensor—(current feature that can be used with the RIO Device), setpoint, and E-Bus
network connection for use with all Excel 5000 controllers (except W7751A,C,E,G).
• T7770C Wall Module with temperature sensor—(current feature that can be used with the RIO Device), setpoint, Bypass
button and LED, and E-Bus network connection for use with all Excel 5000 controllers (except W7751A,C,E,G).
• T7770D Wall Module with temperature sensor—(current feature that can be used with the RIO Device), Bypass button and
LED, and E-Bus network connection for use with all Excel 5000 controllers (except W7751A,C,E,G).
NOTE: The T7770B,C Models are available with a relative scale plate adjustable in E-Vision °F (± 5°C).
Only one PT3000 sensor is supported with the W7761A device.
The T7780 Digital Display Wall Module (DDWM) is available in one model:
• T7780 DDWM displays and provides space temperature, setpoint, Occ/Unocc override, Application Mode, and Fan
mode/speed selection for all Excel 10 controllers (except W7751 A,C,E,G).
Other products:
• Q7750A Excel 10 Zone Manager.
• Q7751A Bus Router.
• Q7752A Serial Adapter.
• Q7740A,B FTT Repeaters.
• 209541B FTT Termination Module.
• ML6161 Series 60 Damper Actuator.
• M6410A Series 60 Valve Actuator (use with V5812 or V5813 Valves).
• ML684A Series 60 Versadrive Valve Actuator (use with V5011 and V5013 Valves).
• MMC325-010 Transducer, Series 60 to pneumatic 0 to 10 psi.
• MMC325-020 Transducer, Series 60 to pneumatic 0 to 20 psi.
• ML6464A Direct Coupled Damper Actuator, 66 lb-in. torque, Series 60.
• ML6474 Direct Coupled Damper Actuator, 132 lb-in. torque, Series 60.
• ML6185A Direct Coupled Damper Actuator, Spring Return, Series 60.
• ML7984B Direct Coupled Valve Actuator, PWM (use with V5011 or V5013F,G Valves).
• EL7680A1008 Wall Module Infrared Occupancy Sensor.
• EL7628A1007 Ceiling Mounted Infrared Occupancy Sensor.
• EL7611A1003 Ultrasonic Occupancy Sensor.
• EL7612A1001 Ultrasonic Occupancy Sensor.
Refer to Table 8 in Application Step 5. Order Equipment for a complete listing of all available part numbers.
NOTE: The Q7750A Zone Manager is referred to as (E-Link) in internal software and CARE.

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

Agency Listings
Table 1 provides information on agency listings for Excel 10 products.
Table 1. Agency Listings.
Device
W7761A Input/Output Device

Agency

Comments

Tested and listed under UL916 (file number E87741).

cUL

Listed (E87741).

General Immunity per European Consortium Standards EN50081-1 (CISPR
22, Class B) and EN 50082-1:1992 (based on Residential, Commercial, and
Light Industrial).
EN 61000-4-2: IEC 1000-4-2 (IEC 801-2) Electromagnetic Discharge.
EN 50140,
EN 50204:
IEC 1000-4-3 (IEC 801-3) Radiated Electromagnetic Field.
EN 61000-4-4: IEC 1000-4-4 (IEC 801-4) Electrical Fast Transient (Burst).
Radiated Emissions and Conducted Emissions:
EN 55022:
1987 Class B.
CISPR-22:
1985.

T7770A through D Wall Modules

FCC

Complies with requirements in FCC Part 15 rules for a Class B Computing
Device. Operation in a residential area can cause interference to radio or TV
reception and require the operator to take steps necessary to correct the
interference.

(Not applicable.)

CSA

(Not applicable.)

FCC
T7780 DDWM

(Not applicable.)
Emissions; EN50081-1, En55022 (CISPR Class B), Immunity 50082-1

UL &cUL Tested and listed under UL916, S8L9 Energy Management Equipment.
FCC
Q7750A Excel 10 Zone Manager

Q7751A,B Router,
Q7752A Serial Adapter
Q7740A,B FTT Repeaters

Complies with requirements in FCC Part 15 rules for a Class B Computing
Device.

Tested and listed under UL916, file number S4804 (QVAX, PAZY).

CSA

Listing pending.

FCC

Complies with requirements in FCC Part 15 rules for a Class A Computing
Device. Operation in a residential area can cause interference to radio or TV
reception and require the operator to take steps necessary to correct the
interference.

UL1784.

CSA

Listed.

FCC

Complies with requirements in FCC Part 15 rules for a Class B Computing
Device.

Abbreviations and Definitions
AHU - Air Handling Unit; the central fan system that includes the blower, heating equipment, cooling equipment, ventilation
air equipment, and other related equipment.
CO - Carbon Monoxide. Occasionally used as a measure of indoor air quality.
CO2 - Carbon Dioxide. Often used as a measure of indoor air quality.
CARE - Computer Aided Regulation Engineering; the PC based tool used to configure C-Bus and E-Bus devices.
C-Bus -Honeywell proprietary Control Bus for communications between EXCEL 5000® System controllers and components.
CPU - Central Processing Unit; an EXCEL 5000® System controller module.
cUL - Underwriters Laboratories Canada.
CVAHU -Constant Volume AHU; refers to a type of air handler with a single-speed fan that provides a constant amount of
supply air to the space it serves.
6

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

DDF - Delta Degrees Fahrenheit.
D/X - Direct Expansion; refers to a type of mechanical cooling where refrigerant is (expanded) to its cold state, within a
heat-exchanging coil that is mounted in the air stream supplied to the conditioned space.
E-Bus - Honeywell implementation of Echelon® LonWorks® network for communication among Excel 10 Controllers.
E-Bus Segment - An E-Bus section containing no more than 60 Excel 10s. Two segments can be joined together using a
router.
Echelon® - The company that developed the LON® bus and the Neuron® chips used to communicate on the E-Bus.
Economizer - Refers to the mixed-air dampers that regulate the quantity of outdoor air that enters the building. In cool outdoor
conditions, fresh air can be used to supplement the mechanical cooling equipment. Because this action saves energy,
the dampers are often referred to as economizer dampers.
EMI - Electromagnetic Interference; electrical noise that can cause problems with communications signals.
E-Link - Refers to the Q7750A Zone Manager. This name is used in internal software and in CARE software.
EMS - Energy Management System; refers to the controllers and algorithms responsible for calculating optimum operational
parameters for maximum energy savings in the building.
EEPROM - Electrically Erasable Programmable Read Only Memory; the variable storage area for saving user setpoint values
and factory calibration information.
EPROM - Erasable Programmable Read Only Memory; the firmware that contains the control algorithms for the Excel 10
Controller.
Excel 10 Zone Manager - A controller that is used to interface between the C-Bus and the E-Bus. The Excel 10 Zone Manager
also has the functionality of an Excel 100 Controller, but has no physical I/O points.
NOTE: The Q7750A Zone Manager can be referred to as E-Link in the internal software, CARE.
FCU - Fan Coil Unit.
Firmware - Software stored in a nonvolatile memory medium such as an EPROM.
Floating Control - Refers to Series 60 Modulating Control of a valve or damper. Floating Control utilizes one digital output to
pulse the actuator open, and another digital output to pulse it closed.
FTT - Free Topology Transceiver.
IAQ - Indoor Air Quality. Refers to the quality of the air in the conditioned space, as it relates to occupant health and
comfort.
I/O - Input/Output; the physical sensors and actuators connected to a controller.
I x R - I times R or current times resistance; refers to Ohm’s Law: V = I x R.
K - Degrees Kelvin.
Level IV - Refers to a classification of digital communication wire. Formerly known as UL Level IV, but not equivalent to
Category IV cable. If there is any question about wire compatibility, use Honeywell-approved cables (see Step 5 Order
Equipment section).
NEC - National Electrical Code; the body of standards for safe field-wiring practices.
NEMA - National Electrical Manufacturers Association; the standards developed by an organization of companies for safe field
wiring practices.
Node - A Communications Connection on a network; an Excel 10 Controller is one node on the E-Bus network.
NV - Network Variable; an Excel 10 parameter that can be viewed or modified over the E-Bus network.
PC - An IBM compatible Personal Computer with 386 or higher processor and capable of running Microsoft® Windows™
Version 3.1.
Pot - Potentiometer. A variable resistance electronic component located on the T7770B,C Wall Module; used to allow useradjusted setpoints to be input into the Excel 10 Controller.
7

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

PWM - Pulse Width Modulated output; allows analog modulating control of equipment using a digital output on the controller.
RTD - Resistance Temperature Detector; refers to a type of temperature sensor whose resistance output changes according
to the temperature change of the sensing element.
RIO - Remote Input/Output Device. Provides auxiliary inputs and outputs for use with an Excel 10 Zone Manager and Excel
10 controllers.
Subnet - An E-Bus segment that is separated by a router from its Q7750A Zone Manager.
TOD - Time-Of-Day; the scheduling of Occupied and Unoccupied times of operation.
TPT - Twisted Pair Transceiver.
UV - Unit Ventilator Controller.
VA - Volt Amperes; a measure of electrical power output or consumption as applies to an ac device.
Vac - Voltage alternating current; ac voltage rather than dc voltage.
VAV - Variable Air Volume; Refers to either a type of air distribution system, or to the W7751 Excel 10 VAV Box Controller
that controls a single zone in a variable air volume delivery system.
VOC - Volatile Organic Compound; refers to a class of common pollutants sometimes found in buildings. Sources include
out-gassing of construction materials, production-line by-products, and general cleaning solvents. A VOC is
occasionally used as a measure of indoor air quality.
W7750 - The model number of the Excel 10 CVAHU Controllers (also see CVAHU).
W7751 - The model number of the Excel 10 VAV Box Controllers (also see VAV).
W7752 - The model number of the Excel 10 FCU Controllers (also see FCU).
W7753 - The model number of the Excel 10 UV Controllers (also see UV).
W7761 - The model number of the Excel 10 RIO Device (also see RIO).
Wall Module - The Excel 10 Space Temperature Sensor and other optional controller inputs are contained in the T7770 or
T7780 Wall Modules. See Application Step 5. Order Equipment for details on the various models of Wall Modules.
XBS - Excel Building Supervisor; a PC based tool for monitoring and changing parameters in C-Bus devices.

Construction
Controllers
The Excel 10 W7761A RIO Device is available in one model. It contains 4 resistive inputs that can be configured for either
20Kohm NTC or PT3000 sensors, 2 voltage or current inputs, 4 digital inputs and 8 Digital Outputs (Triacs) which may be
Discrete (maintained or momentary), Modulating (PWM) or Floating.
The W7761A consists of a single circuit board that is mounted in a sheet metal subbase and protected by a factory snap-on
cover. The device mounts with two screws (see Fig. 3 or 4). Using DIN rail adapters (see Fig. 5) they can also be snapped onto
standard EN 50 022 35 mm by 7.5 mm (1-3/8 in. by 5/16 in.) DIN rail. DIN rail is available through local suppliers. If using DIN
rail also purchase from Augat Inc. part number 2TK2D DIN rail (adapter) two each for every device (see Fig. 5). Wires are
attached to the screw terminal blocks on both sides of the device. Connection for operator access to the E-Bus is provided by
plugging the SLTA connector cable into the communications jack.
A channel in the cover allows the device status LED to be visible when the cover is in place. There are no field-serviceable
parts on the circuit board and, therefore, it is intended that the cover never be removed.
The W7761A can be mounted in any orientation. Ventilation openings were designed into the cover to allow proper heat
dissipation regardless of the mounting orientation. See Fig. 3 and 4.

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

W 7761A

31
DI - 4

EGND

30
G ND

NOT
USED

29
DI-3

NOT
USED

28
DI-2

AI-1
OHM

27
G ND

GND

26
D I- 1

AI-2
OHM

25
VAC 2 4

AI-3
OHM

2 4 23
VAC 2 4
COM

GND

OU T 1

AI-4
OHM

22
OU T 2

AI-5
V/mA

21 2 0
O UT 3

GND

O UT 4

AI-6
V/mA

11 1 2

19
OU T 5

18
OU T 6

22 V D C
O UT

17
O UT 7

EB U S

16
O UT 8

E BU S
J AC K

M 1 01 18

Fig. 3. Excel 10 W7761A Remote I/O Device.

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

2 -1 /8
(5 4 )

25
VA C 24

24 23
VA C 24
CO M

OU T 1

OU T 2

O UT 3

O UT 4

O UT 5

D I- 4

GND

D I- 3

D I-2

GND

D I- 1

EGND

NOT
USED

AI-1
OHM

GND

AI-2
OHM

AI-3
OHM

GND

AI-4
OHM

AI-5
V/mA

GND

AI-6
V/mA

22 VDC
O UT

O UT 6

OU T 7

E BU S

16
O UT 8

EB U S
J AC K

5 -5 /8
(1 43 )

3 -1 /1 6
(77 )

5 -3 /1 6 (1 3 2 )
6 (1 5 2 )

M 68 5 6

Fig. 4. W7761A construction in in. (mm).

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

2
3

M6857

Fig. 5. DIN rail adapters.
The input/output points are summarized in Table 2.
Table 2. List Of Available Points.
W7761A
Digital Outputs

8 Triac Outputs

Digital Inputs

Analog Inputs

6
(4 Resistive and 2
Voltage/Current Inputs)

DC Power

20 Vdc available to
power optional sensors
(50 mA max.)

Floating (Series 60) Heating or Cooling
Control
PWM Control

Heating or Cooling

Performance Specifications
Power:
24 Vac with a minimum of 20 Vac and a maximum of 30 Vac at either 50 or 60 Hz. The W7761A power consumption is 6 VA
maximum at 50 or 60 Hz. The W7761A is a NEC Class 2 rated device. This listing imposes limits on the amount of power the
product can consume or directly control to a total of 100 VA (U.S. only).
The individual Triac outputs incorporate an internal common connection with the input power transformer. The Triacs provide a
switched path from the hot side (R) of the transformer through the load to the common of the transformer. The W7761A Device
design must use the same power transformer for any loads connected to that device; see Fig. 19.
Each individual Triac is rated 500mA at 30 Vac maximum. Under all operating conditions, the maximum load/source power
budget for the W7761A Device is 100 VA.
11

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

CPU:
Motorola or Toshiba 3150 Neuron processor, containing three eight-bit CPU’s. Each Neuron has a unique 48-bit network
identification number.
Memory Capacity:
64K ROM/PROM (6K reserved for network operations, 58K usable for control algorithm code).
512 bytes EEPROM.
2K RAM.
Specified Space Temperature Sensing Range:
45 to 99°F (7 to 37°C) with an allowable control setpoint range from 50 to 90°F (10 to 32°C) when initiated from the network
and 55 to 85°F (13 to 29°C) when configured and connected to T7770 Wall Modules or T7780 DDWM.
Communications:
The W7761A Device uses a transformer-coupled communications port with differential Manchester-encoded data at 78 kilobits
per second (kbs). The transformer-coupled communications interface offers a much higher degree of common-mode noise
rejection while ensuring dc isolation.
Approved cable types for E-Bus communications wiring is Level IV 22 AWG (0.34 mm2) plenum or non-plenum rated
unshielded, twisted pair, solid conductor wire. For non-plenum areas, use Level IV 22 AWG (0.34 mm 2) such as U.S. part
AK3781 (one pair) or U.S. part AK3782 (two pair). In plenum areas, use plenum-rated Level IV, 22 AWG (0.34 mm2) such as
U.S. part AK3791 (one pair) or U.S. part AK3792 (two pair). (See Tables 6 and 8 for part numbers.) Contact Echelon Corp.
Technical Support for the recommended vendors of Echelon approved cables.
The Free Topology Transceiver (FTT) supports polarity insensitive free topology wiring. This frees the system installer from the
need to wire using a bus topology. Star, bus, mixed, and loop wiring are all supported by this architecture. The maximum E-Bus
length when using a combination of star, loop, and bus wiring (singly terminated) is 1640 ft (500m) with the maximum node-tonode length of 1312 ft (400m). In the event that the total wire length is exceeded, then a Q7740A 2-Way Repeater or a Q7740B
4-Way Repeater can be used to allow the number of devices to be spread out as well as increasing the length of wire over
which they communicate. The maximum number of repeaters per segment is one (on either side of the router). A Q7751A EBus Router can also be used to effectively double the maximum E-Bus length. The advantage of using the router is that it will
segregate traffic to a segment while when using the repeater, all traffic is repeated on each segment. When utilizing a doubly
terminated E-Bus structure, use a continuous daisy-chain with no stubs or taps from the main backbone, The maximum E-Bus
length is 4593 ft (1400m) with the maximum node-to-node length of 3773 ft (1150m).
FTT networks are very flexible and convenient to install and maintain, but it is imperative to carefully plan the network layout
and create and maintain accurate documentation. Unknown or inaccurate wire run lengths, node-to-node distances, node
counts, total wire length, and misplaced or missing terminators can cause poor network performance. Refer to E-Bus Wiring
Guidelines form, 74-2865 for complete description of network topology rules.
LonMark Functional Profile
W7761A Device supports the LonMark Preliminary Functional Profile for a Remote Input/Output Device.
Environmental:
Operating Temperature:
-40° to 150°F (-40° to 65.5°C).
Shipping Temperature:
-40° to 150°F (-40° to 65.5°C).
Relative Humidity:
5% to 95% noncondensing.
Vibration:
Rated V2 level compliant.
Inputs/Outputs:
The W7761A Unit supports the following hardware features:
• Four 20KNTC (1000 through 150,000 ohm) or PT3000 (250 through 12,000 ohm) resistive analog inputs.
• Two 0.2 to 10 VDC or 2 to 20 mA (user selectable) analog inputs.
• Four dry contact digital inputs.
• Eight 24 Vac Triac digital outputs (500 mA MAX).
• One 22 Vdc power supply for auxiliary devices with a maximum current of 50 mA.
Analog Inputs:
Space Temperature:
Type: RTD.
12

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Supported Sensors: T7770A,B,C,D sensor—(current feature that can be used with the RIO Device) and T7780
DDWM.
Discharge Air Temperature:
Type: RTD.
Supported Sensors: C7100A1015*, C7770A1006, C7031B1033, C7031C1031, C7031D1062, C7031J1050,
C7031K1017.
Outdoor Air Temperature:
Type: RTD.
Supported Sensors: C7170A1002.
Return Air Temperature:
Type: RTD.
Supported Sensors: C7100A1015*, C7770A1006, C7031B1033, C7031C1031, C7031D1062, C7031J1050,
C7031K1017.
Mixed Air Temperature:
Type: RTD.
Supported Sensors: C7100A1015*, C7770A1006, C7031B1033, C7031C1031, C7031D1062, C7031J1050,
C7031K1017.
*The PT3000 sensor is not recommended for floating control (real time - discharge or return configured as space sensor).
The PT3000 sensor is intended for monitoring or differential (staged) control.
Outdoor Air Humidity:
Type: Voltage/Current.
Supported Sensors: C7600B1000 and C7600B1018 (2 to 10V), C7600C1008 (4 to 20mA).
Return Air Humidity:
Type: Voltage/Current.
Supported Sensors: C7600B1000 and C7600B1018 (2 to 10V), C7600C1008 (4 to 20mA).
Outdoor Air Enthalpy:
Type: Current.
Supported Sensors: C7400A1004 (4 to 20mA).
Return Air Enthalpy:
Type: Current.
Supported Sensors: C7400A1004 (4 to 20mA).
Air Filter Differential Pressure:
Type: Voltage.
Supported Sensors: Third party 2 to 10V, 0 to 5 inw ( 0 to 1.25 kPa) differential pressure sensors.
Space CO2 Sensor:
Type: Voltage.
Supported Sensors: Third party 0 to 10V, 0 to 2000 ppm CO2 sensors.
Outdoor Air CO2 Sensor:
Type: Voltage.
Supported Sensors: Third party 0 to 10V, 0 to 2000 ppm CO 2 sensors.
Outdoor Air CO Sensor:
Type: Current.
Supported Sensors: Third party 4 to 20mA, 0 to 300 ppm CO sensor.
Monitor Sensor for network use:
Type: Voltage.
Supported Sensors: Third party 2 to 10V, 2 to 10 volts displayed.
Digital Inputs:
Dry-contact inputs are sensed using a 9 milliamp at 4.8 volts detection circuit. It is very important that the device used contains
high quality, noncorroding contacts with resistivity that does not degrade; that is, increase over time. Use noble metal (such as
gold or silver) or pimpled or sealed contacts to assure consistent, long-term operation.
Triac Outputs:
Triac Outputs on the RIO:
— Power ratings: 20 Vac to 30 Vac at 25 mA MIN to 500 mA MAX current for any voltage.
13

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

CAUTION
When any device is energized by a Triac, the device must be able to sink a minimum of 25 mA.
NOTE: Triacs sink current to the 24 Vac common (COM terminal on the W7761A); see Fig. 19 for wiring example.

IMPORTANT:
If non-Honeywell motors, actuators, or transducers are to be used with Excel 10 Controllers, Triac compatibility must
be verified (see previous NOTE).

Wall Modules
The T7770A,B,C,D Wall Module sensor—(current feature that can be used with the Excel 10 W7761A RIO Device). See Fig. 6.
KNOCKOUTS FOR EUROPEAN
APPLIC ATIONS

KNOCKOUTS FOR EUROPEAN
APPLIC ATIONS

65
5-1/16
(128)

60
55

29/32
(23)

3-5/32 (80)

5-1/16
(128)

1-1/4
(32)

3-5/32 (80)

2-3/8 (60)

2-3/8
(60)

1
E-BUS

STANDARD
UTILITY
CONDUIT
BOX (2 X 4)
M OUNTING
HOLES

T7770C

AL COM
GND

E-BUS

SENSOR
SENSOR

GND

SETPT
SETPT

SENSOR

BYPASS/FAN

FAN

BYPASS/FAN

LED
LED

SETPT

LED

BYPASS

W7752

1,2,3,4=on; 5=0ff

LED RETURN

1,3,5=on; 2,4=off 2,4=on; 1,3,5=off

DIP Switch S4 Settings:

XL600-XL20

STANDARD
UTILITY
CONDUIT
BOX (2 X 4)
M OUNTING
HOLES

W7753

T7770A1006

2-3/8
(60)

M15119

Fig. 6. T7770A,B,C,D (T7770A,C shown) construction in in. (mm), sensor—(current feature that can be used with RIO
Device).
14

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

The T7780 DDWM for the Excel 10 Controllers (see Product Names section) is shown in Fig. 7.
KNOCKOUTS FOR EUROPEAN
APPLICATIONS

5-1/16
(128)

1
(25)

3-5/32 (80)

2-3/8 (60)

2-3/8
(60)

STANDARD
UTILITY
CONDUIT
BOX (2 X 4)
MOUNTING
HOLES

M11391

Fig. 7. T7780 construction, subbase dimensions in in. (mm).

Configurations
Each W7761A device can control or monitor a variety of different types of mechanical equipment. The W7761A was not
intended to control staged or modulating heating/cooling coils, mixed air economizer dampers, or system fan/heat pump units.
The W7761A contains inputs and outputs, but no control software. All control that would be associated with the inputs and
outputs in the W7761A would be accomplished though the Excel Zone Manager and would not be suitable for VAV control,
temperature control, or any control function that would require less than a 30 second update rate.
It would be suitable to control miscellaneous exhaust or ventilation fans, lighting zones that are spread out through a building
which need to be linked to a start/stop time program through the Zone Manager or to enable freeze protection. The W7761A
device can be connected to outdoor air temperature and humidity sensors that can be used by other Excel 10 controllers on
the E-Bus or Excel 5000 controllers on the C-Bus through the Excel 10 Zone Manager. The W7761A can be used to monitor
Occupancy, Window, Dirty filter, Indoor air quality, and Smoke control sensors. This allows the controllers to use their physical
inputs for monitoring other elements such as return humidity, IAQ, etc. to achieve better control. The W7761A can be used to
15

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
average many space temperature sensors that are located in a zone that is controlled by the W7750 Constant Volume AHU
Controller.

Mixed-Output-Type Control
The W7761A Device can control mixed-output-types of applications such as PWM and staged control occurring simultaneously
with Series 60 Floating Control.

Occupancy Sensor
Excel 10 W7761A device can be connected to an occupancy sensor through a digital input. This is a device, such as a passive
infrared motion detector, that contains a dry contact (see following NOTE) closure to indicate whether or not people are present
in the space. The Excel 10 W7761A Device expects a contact closure to indicate the space is Occupied. See Fig. 18 in
Application Step 4, Prepare Wiring Diagrams, for details on wiring connections. This occupancy sensor can then be bound to
other Excel 10 controllers on the E-Bus or Excel 5000 controllers on the C-Bus through the Excel 10 Zone Manager. This
would allow the other Excel 10 controllers to use their physical inputs for monitoring other elements such as return humidity,
IAQ, etc. to achieve better control.
NOTE: The Excel 10 Controllers (W7750 CVAHU and W7761A RIO) have limited power available (only 9 mA at 4.8 volts) for
checking the digital inputs for contact closures. It is very important that the device used contains high quality,
noncorroding contacts with resistivity that does not degrade; that is, increase over time. Use noble metal (such as
gold or silver), pimpled or sealed contacts to assure consistent, long-term operation.
The recommended devices for use with the Excel 10 W7750 Controller and W7761A Device are the EL7628A1007 Ceiling
Mounted Infrared or the EL7680A1008 Wall Mounted Wide View Infrared Occupancy Sensors. If ultrasonic sensors are
required, the EL7611A1003 and the EL7612A1001 Occupancy Sensors are recommended. An EL76XX Power Supply/Control
Unit is required for use with these occupancy sensors. The EL7630A1003 can power up to four sensors, and is multi-tapped for
several line voltages. The EL7621A1002 can power three sensors and it connects to 120 Vac line voltage. The EL7621A1010
can also power three sensors but it connects to 277 Vac line voltage.

Window Open/Closed Digital Input
Excel 10 W7761A device can be connected to a window sensor to indicate whether a window in the space was opened. The
Excel 10 W7761A device can be connected to a dry contact (see the NOTE for the Occupancy Sensor and Fig. 18 in
Application Step 4. Prepare Wiring Diagrams, for details) or a set of contacts wired in series (for monitoring multiple windows)
to verify that the window(s) are closed. This window(s) sensor can then be bound to other Excel 10 controllers on the E-Bus or
Excel 5000 controllers on the C-Bus through the Excel 10 Zone Manager. The algorithm in the other Excel 10 controllers
expects a contact closure to indicate the window is closed. If an open window is detected, the algorithm in the other Excel 10
controllers changes the mode of operation to FREEZE_PROTECT, which shuts down the control functions, and watches for
low space temperature conditions. The freeze protection setpoint is 46.4°F (8°C), and the frost alarm occurs at 42.8°F (6°C).

Wall Module Options
As previously discussed, there are five basic varieties of the T7770. There is one variety of the PT3000 sensor and the T7780
DDWM (see the Product Names and the Construction sections). The T7770A,B,C,D 20Kohm NTC sensor—(current feature
that can be used with the RIO Device) and one PT3000 sensor can be configured on any of the four resistive inputs. The
T7780 is an E-Bus node and would not be directly connected to the RIO Device.

Dirty Filter Monitor
The air filter in the air handler can be monitored by the W7761A RIO device and an alarm issued by the Zone Manager when
the filter media needs replacement. The two methods of monitoring the filter are:
1. Connecting a differential pressure switch to a digital input on the W7761A.
2. Wiring a 2-to-10V differential pressure sensor to a voltage input on the W7761A. If the analog input sensor is used, its
measured value 0 to 5 inw (0 to 1.25 kPa) is compared to a user-selectable setpoint. The comparison is done in the
Zone Manager —valid range: 0 to 5 inw (0 to 1.25 kPa), and the Dirty Filter alarm is issued when the pressure drop
across the filter exceeds the setpoint.

Indoor Air Quality (IAQ)
The Excel 10 W7761A device can monitor IAQ using one of two different methods of detecting poor air quality. The first is with
an IAQ switch device connected to a digital input on the W7761A, where a contact closure indicates poor air quality, and an
alarm can be issued by the Zone Manager. The device can detect poor air quality using any desired measure such as CO2,
VOC, CO, etc. The second method, is through an analog input that connects to a CO2 sensor (0 to 10V). The measured value
of CO2 from this sensor (0 to 2000 ppm) is compared to a user-selectable setpoint (the comparison is done in the Zone
Manager —valid range: 0 to 2000 ppm), and an IAQ alarm can be issued when the CO2 level exceeds the setpoint. The IAQ
sensor that is connected to the W7750 RIO, can be bound to other W7750 CVAHU Excel 10 controllers on the E-Bus.

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

APPLICATION STEPS
Overview
The seven application steps shown in Table 3 are planning considerations for engineering an Excel 10 W7761 Remote
Input/Output Device. These steps are guidelines intended to aid understanding of the product I/O options, bus arrangement
choices and the Excel 10 W7761A Devices role in the overall EXCEL 5000® System architecture.
Table 3 . Application Steps.
Step No.

Description

Plan The System

Determine Other Bus Devices Required

Lay Out Communication and Power Wiring

Prepare Wiring Diagrams

Order Equipment

Configure Devices

Troubleshooting

Step 1. Plan The System
Plan the use of the W7761A Devices according to the job requirements. Determine the location, functionality and sensor or
actuator usage. Verify the sales estimate of the number of W7761A Devices and the number and type of output actuators and
other required accessories.
When planning the system layout, consider potential expansion possibilities to allow for future growth. Planning is very
important to be prepared for adding HVAC systems and controllers in future projects.
T7770A,B,C,D Wall Modules (sensor—current feature that can be used with the RIO Device)can be installed as either
hardwired I/O-only devices or additional wiring can be run to them (for the E-Bus network ) to allow a CARE/E-Vision operator
terminal to have access to the E-Bus. The application engineer needs to determine how many wall modules or other input
sensors are required. This information is required during installation to ensure that the proper number and type of wires are
pulled to the wall modules, and the building operators are informed about where they can plug in to the E-Bus network with a
portable operator terminal (see Fig. 8 through 10).

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The FTT communication loop, (E-Bus) between controllers is a free topology wiring scheme that supports star, loop, and/or bus
wiring. Refer to the E-Bus Wiring Guidelines form, 74-2865 for complete description of network topology rules. See Application
Step 3. Lay Out Communications and Power Wiring, for more information on bus wiring layout, and see Fig. 16 through 19 in
Application Step 4. Prepare Wiring Diagrams, for wiring details.
The application engineer must review the Direct Digital Control (DDC) job requirements. This includes the Sequences of
Operation for the Excel 10 controllers, and for the system as a whole. Usually there are variables that must be passed between
the W7750 (CVAHU), Q7750A Zone Manager, W7761 (RIO), and other Excel 10 controller(s), or central plant controller(s) that
are required for optimum system-wide operation. Typical examples are the TOD Occ/Unocc signal, the outdoor air
temperature, demand limit control signal, and smoke control mode signal.

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
It is important to understand these interrelationships early in the job engineering process to ensure implementing when
configuring the controllers. (See Application Step 6. Configure Devices, for information on the various Excel 10 parameters and
on Excel 10 point mapping.)

Step 2. Determine Other Bus Devices Required
A maximum of 62 nodes can communicate on a single E-Bus segment. Each W7761A (RIO), W7750 (CVAHU), W7751 (VAV)
Controller or T7780 Wall Module constitutes one node. If more nodes are required, a Q7751A Router is necessary. Using a
router allows up to 125 nodes, divided between two E-Bus segments. The router accounts for two of these nodes (one node on
each side of the router); a Q7750A Excel 10 Zone Manager takes one node and two nodes are available for operator terminal
nodes, leaving 120 nodes available for Excel 10 Controllers and T7780 Wall Modules. All 120 controllers and T7780 Wall
Modules are able to talk to each other through the router. A Q7750A Excel 10 Zone Manager is required to connect the E-Bus
to the standard EXCEL 5000® System C-Bus. Each Excel 10 Zone Manager can support no more than 120 Excel 10
Controllers and T7780 Wall Modules. This limit is set in the Excel 10 Zone Manager database as an absolute maximum.
Each E-Bus segment is set up with two unused nodes to allow for a CARE/E-Vision or Hand Held Tool (HHT) to be connected
to the E-Bus. Multiple CARE/E-Vision or HHT terminals can be connected to the bus at the same time. Table 4 summarizes the
E-Bus segment configuration rules.
Table 4 . E-Bus Configuration Rules And Device Node Numbers.
One E-Bus Segment Example

Maximum Number of Nodes Equals 62

One Q7750A Excel 10 Zone Manager 1 node
Port for operator terminal access (CARE/E-Vision or HHT) 1 node
Maximum number of Excel 10s and T7780s 60 nodes (Only T7780 Wall Modules are E-Bus nodes)
Total 62 nodes
Two E-Bus Segments Example Maximum Number of Nodes Equals 125
One Q7750A Excel 10 Zone Manager 1 node
One Q7751A Router 2 nodes (1 in each Bus Segment)
Ports for operator terminal access (two CARE/E-Vision or HHT 2 nodes (1 in each Bus Segment)
terminals)
Maximum number of Excel 10s and T7780s in segment number 60 nodes (Only T7780 Wall Modules are E-Bus nodes)
one
Maximum number of Excel 10s and T7780s in segment number 60 nodes (Only T7780 Wall Modules are E-Bus nodes)
two
Total 125 nodes
Refer to the E-Bus Wiring Guidelines form, 74-2865 for complete description of network topology rules and the maximum wire
length limitations. If longer runs are required, a Q7740A 2-way or Q7740B 4-way repeater can be added to extend the length of
the E-Bus. A Q7751A Router can be added to partition the system into two segments and effectively double the length of the
E-Bus. Only one router is allowed with each Excel 10 Zone Manager and each network segment can have a maximum of 1
repeater. In addition, all E-Bus segments require the installation of a Bus Termination Module for a singly terminated E-Bus or
two Bus Termination Modules for a doubly terminated E-Bus. For more details on E-Bus termination, refer to the E-Bus Wiring
Guidelines form, 74-2865, or see Application Step 3. Lay Out Communications and Power Wiring, and the E-Bus Termination
Module subsection in Application Step 4.

Step 3. Lay Out Communications and Power Wiring
E-Bus Layout
The communications bus, E-Bus, is a 78-kilobit serial link that uses transformer isolation and differential Manchester encoding.
Approved cable types for E-Bus communications wiring is Level IV 22 AWG (0.34 mm2) plenum or non-plenum rated
unshielded, twisted pair, solid conductor wire. For nonplenum areas, use Level IV 22 AWG (0.34 mm2), such as U.S. part
AK3781 (one pair) or U.S. part AK3782 (two pair). In plenum areas, use plenum-rated Level IV, 22 AWG (0.34 mm2) such as
U.S. part AK3791 (one pair) or U.S. part AK3792 (two pair). See Tables 9 and 10 for part numbers. Contact Echelon Corp.
Technical Support for the recommended vendors of Echelon approved cables. The FTT communications bus, E-Bus,
supports a polarity insensitive, free topology wiring scheme that supports star, loop, and/or bus wiring.
E-Bus networks can be configured in a variety of ways, so refer to the E-Bus Wiring Guidelines form, 74-2865 for a complete
description of network topology rules and Table 4. Fig. 9 and 10 depict two typical E-Bus network topologies; one as a singly
terminated bus segment that has 60 nodes or less, and one showing a doubly terminated segment. The bus configuration is
set up using the Network Manager tool from within CARE (see the CARE User’s Manual form, 74-5587 or Excel E-Vision
User’s Guide form, 74-2588).

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
NOTE: For wiring details see the E-Bus Termination Module subsection in Step 4. For wall module wiring, US part AK3782
(non-plenum) or US part AK3792 (plenum) can be used. These cables contain two twisted pairs (one for the run down
to the wall module, and one for the run back up to the controller) for ease of installation.

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74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
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NOTE: See the E-Bus Termination Module section for wiring details.

IMPORTANT
Notes on communications wiring:
• All field wiring must conform to local codes and ordinances.
• Approved cable types for E-Bus communications wiring is Level IV 22 AWG (0.34 mm2) plenum or non-plenum
rated unshielded, twisted pair, solid conductor wire. For nonplenum areas, use Level IV 22 AWG (0.34 mm 2), such
as U.S. part AK3781 (one pair) or U.S. part AK3782 (two pair). In plenum areas, use plenum-rated Level IV, 22
AWG (0.34 mm2) such as U.S. part AK3791 (one pair) or U.S. part AK3792 (two pair). See Tables 9 and 10 for part
numbers. Contact Echelon Corp. Technical Support for the recommended vendors of Echelon approved
cables.
• Unswitched 24 Vac power wiring can be run in the same conduit as the E-Bus cable.
• Do not use different wire types or gauges on the same E-Bus segment. The step change in line impedance
characteristics causes unpredictable reflections on the bus. When using different types is unavoidable, use a
Q7751A Router at the junction.
• In noisy (high EMI) environments, avoid wire runs parallel to noisy power cables, or lines containing lighting
dimmer switches, and keep at least 3 in. (76 mm) of separation between noisy lines and the E-Bus cable.
• Make sure that neither of the E-Bus wires is grounded.

Power Wiring
A power budget must be calculated for each Excel 10 W7761 Device to determine the required transformer size for proper
operation. A power budget is simply the summing of the maximum power draw ratings (in VA) of all the devices to be controlled
by an Excel 10 W7761 Device. This includes the device itself, the equipment actuators (ML6161, or other motors) and various
contactors and transducers, as appropriate, for the Excel 10 configuration.
Power Budget Calculation Example
The following is an example power budget calculation for a typical W7761A Excel 10 Device.
Device
VA
Information Obtained from the
Excel 10 W7761
6.0 VA
W7761
Device
Specification Data
20

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
ML6161
Damper Actuator

2.2 VA

R8242A
Contactor for fan

21.0 VA

TRADELINE®
Catalog
TRADELINE®
Catalog in-rush rating

M6410A Steam
0.7 VA
TRADELINE®
Heating Coil Valve
Catalog, 0.32A at 24 Vac
TOTAL: 29.9 VA
The Excel 10 System example requires 29.9 VA of peak power; therefore, a 40 VA AT72D Transformer is able to provide
ample power for this device and its accessories. Alternatively, a 75 VA AT88A Transformer could be used to power two Excel
10 Systems of this type, or a 100 VA AT92A Transformer could be used to power three of these controllers and meet NEC
Class 2 restrictions (no greater than 100 VA). See Fig. 12 through 14 for illustrations of power wiring details. See Table 5 for
VA ratings of various devices.
Table 5 . VA Ratings For Transformer Sizing.
Device

Description

W7761A

Excel 10 W7761 Device

6.0

ML6161A/B

Damper Actuator, 35 lb-in.

2.2

R8242A

Contactor

21.0

R6410A

Valve Actuator

0.7

MMC325

Pneumatic Transducer

5.0

ML684

Versadrive Valve Actuator

12.0

ML6464

Damper Actuator, 66 lb-in.

3.0

ML6474

Damper Actuator, 132 lb-in.

3.0

ML6185

Damper Actuator SR 50 lb-in. 12.0

For contactors and similar devices, the in-rush power ratings should be used as the worst case values when performing power
budget calculations. Also, the application engineer must consider the possible combinations of simultaneously energized
outputs and calculate the VA ratings accordingly. The worst case, that uses the largest possible VA load, should be determined
when sizing the transformer.
Line Loss
Excel 10 Controllers must receive a minimum supply voltage of 20 Vac. If long power or output wire runs are required, a
voltage drop due to Ohms Law (I x R) line loss must be considered. This line loss can result in a significant increase in total
power required and thereby affect transformer sizing. The following example is an I x R line-loss calculation for a 200 ft (61m)
run from the transformer to a W7761 Device drawing 37 VA using 18 AWG (1.0 mm2) wire.
The formula is:
Loss = [length of round-trip wire run (ft)] x [resistance in wire (ohms per ft)] x [current in wire (amperes)]
From specification data:
18 AWG twisted pair wire has 6.52 ohms per 1000 feet.
Loss = [(200 ft) x (2 - round-trip) x (6.52/1000 ohms per ft)] x [(37 VA)/(24V)] = 4.02 volts
This means that four volts are going to be lost between the transformer and the device; therefore, to assure the device receives
at least 20 volts, the transformer must output more than 24 volts. Because all transformer output voltage levels depend on the
size of the connected load, a larger transformer outputs a higher voltage than a smaller one for a given load. Fig. 11 shows this
voltage load dependence.
In the preceding I x R loss example, even though the device load is only 37 VA, a standard 40 VA transformer is not sufficient
due to the line loss. From Fig. 11, a 40 VA transformer is just under 100 percent loaded (for the 37 VA device) and, therefore,
has a secondary voltage of 22.9 volts. (Use the lower edge of the shaded zone in Fig. 11 that represents the worst case
conditions.) When the I x R loss of four volts is subtracted, only 18.9 volts reaches the device, which is not enough voltage for
proper operation.
In this situation, the engineer basically has three alternatives:
1. Use a larger transformer; for example, if an 80 VA model is used, see Fig. 11, an output of 24.4 volts minus the four volt
line loss supplies 20.4V to the device. Although acceptable, the four-volt line-loss in this example is higher than
recommended. See the following IMPORTANT.
2. Use heavier gauge wire for the power run. 14 AWG (2.0 mm2) wire has a resistance of 2.57 ohms per 1000 ft which,
using the preceding formula, gives a line-loss of only 1.58 volts (compared with 4.02 volts). This would allow a 40 VA
transformer to be used. 14 AWG (2.0 mm2) wire is the recommended wire size for 24 Vac wiring.
3. Locate the transformer closer to the device, thereby reducing the length of the wire run, and the line loss.
The issue of line-loss is also important in the case of the output wiring connected to the Triac digital outputs. The same formula
and method are used. The rule to remember is to keep all power and output wire runs as short as practical. When necessary,
use heavier gauge wire, a bigger transformer, or install the transformer closer to the device.

IMPORTANT
21

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EXCEL 10 W7761A INPUT/OUTPUT DEVICE
No installation should be designed where the line loss is greater than two volts to allow for nominal operation if the
primary voltage drops to 102 Vac (120 Vac minus 15 percent).
To meet the National Electrical Manufacturers Association (NEMA) standards, a transformer must stay within the NEMA limits.
The chart in Fig. 11 shows the required limits at various loads.
With 100 percent load, the transformer secondary must supply between 23 and 25 volts to meet the NEMA standard. When a
purchased transformer meets the NEMA standard DC20-1986, the transformer voltage-regulating ability can be considered
reliable. Compliance with the NEMA standard is voluntary.
The following Honeywell transformers meet this NEMA standard:
Transformer Type
VA Rating
AT20A
20
AT40A
40
AT72D
40
AT87A
50
AK3310 Assembly
100
27
26
25

SECONDARY VOLTAGE

24
23
22
21
20
19
18
17
16
15
14
0

100
% OF LOAD

200

150
M993

Fig. 11. NEMA class 2 transformer voltage output limits.
Attach earth ground to W7761 Device terminal 1. See Fig. 12, 13 and 14, 16 through 20.
TRIAC`
COMMON
TRIAC LINES`
TO ACTUATORS`
AND CONTACTORS

TRANSFORMER

W7761A
CONNECT POWER TO `
TERMINALS 24 AND 25
25 24

EARTH`
GROUND

M10089

Fig. 12. Power wiring details for one Excel 10 per transformer.

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
TRANSFORMER

120/240 VAC

24 VAC
W7761A

W7761A

25 24

W7761A

25 24

EARTH`
GROUND

M10090

Fig. 13. Power wiring details for two or more Excel 10s per transformer.

IMPORTANT
If the W7761A Device is used on Heating and Cooling Equipment (UL 1995 US only) devices and the transformer
primary power is more than 150 volts, connect the transformer secondary to earth ground, see Fig. 14.
LINE VOLTAGE`
GREATER`
THAN 150 VAC
24 VAC
W7761A
TRANSFORMER

EARTH`
GROUND

EARTH`
GROUND
1`

IF THE W7761 CONTROLLER IS USED IN UL 1995 EQUIPMENT AND `
THE PRIMARY POWER IS MORE THAN 150 VOLTS, GROUND ONE `
SIDE OF TRANSFORMER SECONDARY.
M10088

Fig. 14. Transformer power wiring details for one Excel 10 used in UL 1995 equipment (U.S. only).

IMPORTANT
Notes on power wiring:
• All field wiring must conform to local codes and ordinances.
• To maintain NEC Class 2 and UL ratings, the installation must use transformers of 100 VA or less capacity.
• For multiple controllers operating from a single transformer, the same side of the transformer secondary must be
connected to the same input terminal in each device and the ground terminals (1 on the W7761A) must be
connected to a verified earth ground for each device in the group. See Fig. 13. (Device configurations are not
necessarily limited to three devices per transformer.)
• For the W7761A Device (which has Triac outputs), all output devices must be powered from the same transformer
as the one powering the Excel 10 W7761A Device.
• Use the heaviest gauge wire available, up to 14 AWG (2.0 mm2) with a minimum of 18 AWG (1.0 mm2) for all
power and earth ground connections.
• To minimize EMI noise, do not run Triac output wires in the same conduit as the input wires or the E-Bus
communications loop.
• Unswitched 24 Vac power wiring can be run in the same conduit as the E-Bus cable.
23

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
• Make earth ground connections with the shortest possible wire run using 14 AWG (2.0 mm2) wire. A good earth
ground is essential for W7761A operation. Ideally, connect the earth ground to the ground bus at a motor control
center or circuit breaker panel. However, if the nearest ideal earth ground is inaccessible, consider an alternate
source for earth ground. Metal water pipe is generally a good ground, but do not use sprinkler pipe if prohibited by
local codes. Attention must be given when duct work, conduit, or rebar are to be considered as ground sources. It
is the responsibility of the installer to assure that these structures are tied back to a known earth ground.

Step 4. Prepare Wiring Diagrams
General Considerations
The purpose of this step is to assist the application engineer in developing job drawings to meet job specifications. Wiring
details are included for the W7761A device the T7770A,B,C,D wall module (sensor—current feature that can be used with the
RIO Device) and the T7780 DDWM. The drawings detail I/O, power, and communication bus wiring connections.
NOTE: For field wiring, when two or more wires are to be attached to the same connector block terminal, be sure to twist
them together. Deviation from this rule can result in improper electrical contact. See Fig. 15.
The connector block terminals on the W7761A and on the T7770 accept 14 through 22 AWG (2.0 to 0.34 mm2) wire. Table 6
lists wiring types, sizes, and length restrictions for Excel 10 products.
Table 6 . Field Wiring Reference Table.
Recommended
Wire
Minimum Wire
Function Size AWG (mm2)

Specification
or
Requirement

Construction

Vendor Wire Type

Maximum Length
ft (m)

E-Bus
(Plenum)

22 AWG
(0.34 mm2)

Twisted pair solid conductor, Level IV 140°F Honeywell
Refer to E-Bus
nonshielded or Echelon
(60°C) rating
AK3791 (one twisted pair) Wiring Guidelines
approved shielded cable.
AK3792 (two twisted pairs) for maximum
length

E-Bus
(NonPlenum)

22 AWG
(0.34 mm2)

Twisted pair solid conductor, Level IV 140°F Honeywell
Refer to E-Bus
nonshielded or Echelon
(60°C) rating
AK3781 (one twisted pair) Wiring Guidelines
approved shielded cable.
AK3782 (two twisted pairs) for maximum
length

Input
Wiring
Sensors
Contacts

Multiconductor (usually five- 140°F (60°C)
18 to 22 AWG
(1.0 to 0.34 mm2) wire cable bundle). For runs rating
>200 ft (61m) in noisy EMI
areas, use shielded cable.

Output
Wiring
Actuators
Relays

14 AWG (2.0
mm2)
(18 AWG (1.0
mm2) acceptable
for short runs)

Any pair nonshielded (use
heavier wire for longer
runs).

Power
Wiring

14 AWG
(2.0 mm2)

Any pair nonshielded (use
heavier wire for longer
runs).

Standard thermostat wire

1000 ft (305m)
for 18 AWG
200 ft (61m)
for 22 AWG

NEC Class 2
140°F (60°C)
rating

Honeywell
AK3702 (18 AWG)
AK3712 (16 AWG)
AK3754 (14 AWG)
or equivalent

Limited by line-loss
effects on power
consumption.
(See Line Loss
subsection.)

NEC Class 2
140°F (60°C)
rating

Honeywell
AK3754 (14 AWG)
twisted pair
AK3909 (14 AWG) single
conductor or equivalent

Limited by line-loss
effects on power
consumption.
(See Line Loss
subsection.)

W7761A Devices
Fig. 16 through 20 illustrate W7761A Device wiring for various configurations. Connections to the wall module terminals (4
through 6) and the communications terminals (14 and 15) are made at terminal blocks. Connection for access to the E-Bus is
provided by plugging the connector into the communications jack.
NOTE: If an Excel 10 W7761A Device or Zone Manager is not connected to a good earth ground, the device internal transient
protection circuitry is compromised and the function of protecting the device from noise and power line spikes cannot
be fulfilled. This can result in a damaged circuit board and require replacing the device.

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

TWO 14 AWG`
(2.0 MM2 ) WIRES

3/8`
(10)

STRIP 3/8 IN. (10 MM) FROM WIRES `
TO BE ATTACHED AT ONE TERMINAL.

2. TWIST WIRES TOGETHER `
WITH PLIERS (A MINIMUM `
OF THREE TURNS).

3. CUT TWISTED END OF WIRES TO 3/16 IN. (5 MM) `
BEFORE INSERTING INTO TERMINAL AND TIGHTENING`
SCREW. THEN PULL ON EACH WIRE IN ALL TERMINALS`
TO CHECK FOR GOOD MECHANICAL CONNECTION.
M10086

Fig. 15. Attaching two or more wires at terminal blocks.
See Table 7 for a description of the W7761A terminals.
Table 7 . W7761A I/O Description.
Terminal
Number

Terminal

Description

OUT 8

Digital Output 8

OUT 7

Digital Output 7

OUT 6

Digital Output 6

OUT 5

Digital Output 5

OUT 4

Digital Output 4

OUT 3

Digital Output 3

OUT 2

Digital Output 2

OUT 1

Digital Output 1

+24Vac (H)

Power for the device

COM (N)

Return for power to device

E-Bus

Echelon® communications screw terminals

E-Bus

Echelon® communications screw terminals

DI -4

Digital Input 4

DGND

Digital Ground

DI -3

Digital Input 3

DI -2

Digital Input 2

DGND

Digital Ground

DI -1

Digital Input 1

22 VDC out

22 Vdc power supply for auxiliary devices with a maximum current of 50 mA.

AI-6

Analog Input 6 voltage or current

AGND

Analog ground

AI-5

Analog Input 5 voltage or current

AI-4

Analog Input 4 resistance

AGND

Analog ground

AI -3

Analog Input 3 resistance

AI-2

Analog Input 2 resistance
25

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

GROUND

Analog ground

AI-1

Analog Input 1 resistance

Not Used

Earth Ground

EGND

See Fig. 20 to wire a pneumatic transducer to a W7761A.

C7770A AIR
TEMPERATURE SENSOR

+
24 VAC

16
OUT 8

DI-1

OUT 7

GND

AI-4 OHM

AI-5 V/mA

GND

AI-6 V/mA

22 VDC OUT

E-BUS
JACK

AI-3 OHM

AI-1 OHM

GND

NOT USED

AI-2 OHM

NOT USED

OUT 6

DI-2

E GND

TRIAC EQUIVALENT CIRCUIT

W7761A
REMOTE I/O
DEVICE

OUT 5

DI-3

OUT 3

DI-4

OUT 4

OUT 2

OUT 1

24 VAC

24 VAC COM

GND

E-BUS

2
1

E-BUS

2
JACK FOR
E-BUS
NETWORK
ACCESS

E-BUS

GND

E-BUS

SENSOR

9 8 7 6 5 4 3 2 1

T7770A
WALL
MODULE
1

EARTH GROUND WIRE LENGTH SHOULD BE HELD TO A MINIMUM.
USE THE HEAVIEST GAUGE WIRE AVAILABLE, UP TO 14 AWG (2.O MM2)
WITH A MINIMUM OF 18 AWG (1.O MM2), FOR EARTH GROUND WIRE.

TO ASSURE PROPER ELECTRICAL CONTACT, WIRES MUST BE TWISTED
TOGETHER BEFORE INSERTION INTO THE TERMINAL BLOCK.
M15276

Fig. 16. Typical T7770A and C7770A wiring diagram. (For note 2, refer to Fig. 15.)

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

+
24 VA C

O UT 7

O UT 8

O UT 6

O UT 5

O UT 1

E-BUS

11 12

E-BUS
JACK

22 VDC OUT

GROUND

AI-6 V/ mA

AI-5 V /mA

GROUND

AI-4 OHM

AI-3 OHM

GR O U N D

AI-2 OHM

AI- 1 OHM

EARTH
G ROUND
1

TRI AC EQUIV AL ENT CIRCUIT

W 7 761 A
RE M O T E I/O
DE V IC E

NOT
US ED

O UT 3

O UT 4

O UT 2

25
24 VAC

26
DI-1

27
GROUND

28
DI-2

29
DI-3

30
G ROUND

DI-4

24 VA C COM

2
E-B
C7600C

+
S

C7400A

Humidity
(4 to 20mA)
1

+
S

Enthalpy
(4 to 20mA)

EARTH G ROUND WIRE LENGTH SHOULD BE HE LD TO A MINIMUM.
USE THE HEA VIE ST GAUG E WIR E A VAI LAB LE, UP TO 14 A WG (2.O MM 2 )
WITH A MINIMUM OF 18 A WG (1.O MM2 ), F OR EAR TH GROUND WIRE .
TO ASSURE PROP ER ELECTRICA L CONTACT, WIRES MUS T BE TWIS TED
TOG ETHER BEFO RE INS ERTI ON INTO THE TERMINAL B LOCK.

Fig. 17. Typical Humidity and Enthalpy (4 to 20mA) sensor wiring diagram. (For note 2, refer to Fig. 15.)

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

WINDOW
CONTACT
(CONTACT
CLOSED =
WINDOW
CLOSED)

OCCUPANCY
SENSOR
(CONTACT
CLOSED =
OCCUPIED)

+
-

DI-1

OUT 7

GND

AI-4 OHM

AI-5 V/mA

GND

AI-6 V/mA

22 VDC OUT

E-BUS

E-BUS
JACK

AI-3 OHM

AI-1 OHM

GND

NOT USED

AI-2 OHM

NOT USED

OUT 8

DI-2

E GND

TRIAC EQUIVALENT CIRCUIT

W7761A
REMOTE I/O
DEVICE

OUT 6

DI-3

OUT 5

DI-4

OUT 4

OUT 3

OUT 2

OUT 1

24 VAC

24 VAC COM

GND

24 VAC

2
1

E-BUS

EARTH GROUND WIRE LENGTH SHOULD BE HELD TO A MINIMUM.
USE THE HEAVIEST GAUGE WIRE AVAILABLE, UP TO 14 AWG (2.O MM2)
WITH A MINIMUM OF 18 AWG (1.O MM2), FOR EARTH GROUND WIRE.

TO ASSURE PROPER ELECTRICAL CONTACT, WIRES MUST BE TWISTED
TOGETHER BEFORE INSERTION INTO THE TERMINAL BLOCK.
M15277

Fig. 18. Typical Window and Occupancy sensor wiring diagram. (For note 2, refer to Fig. 15.)

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
PWM
VALVE ACTUATOR

24 (H)

24 (N)

PWM
(H 24 VAC)

PWM OUTPUT
FROM CNTRL

ML7984B

LINE POWER
W

+
-

FAN

24 VAC

DI-1

17
OUT 7

GND

16
OUT 8

DI-2

OUT 6

DI-3

OUT 5

DI-4

OUT 4

OUT 3

OUT 2

OUT 1

24 VAC

24 VAC COM

GND

CONTACTOR (24 VAC)

E GND

NOT USED

AI-1 OHM

GND

AI-2 OHM

AI-3 OHM

GND

AI-4 OHM

AI-5 V/mA

GND

AI-6 V/mA

22 VDC OUT

E-BUS

E-BUS
JACK

TRIAC EQUIVALENT CIRCUIT

W7761A
REMOTE I/O
DEVICE

2
1

E-BUS

EARTH GROUND WIRE LENGTH SHOULD BE HELD TO A MINIMUM.
USE THE HEAVIEST GAUGE WIRE AVAILABLE, UP TO 14 AWG (2.O MM2)
WITH A MINIMUM OF 18 AWG (1.O MM2), FOR EARTH GROUND WIRE.

TO ASSURE PROPER ELECTRICAL CONTACT, WIRES MUST BE TWISTED
TOGETHER BEFORE INSERTION INTO THE TERMINAL BLOCK.
M15279

Fig. 19. Typical PWM Valve Actuator and miscellaneous fan control to W7761A. (For note 2, refer to Fig. 15.)

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

MMC325 PNEUMATIC
TRANSDUCER

DECREASE

INCREASE

24 (N)

24 (H)

24 (N)

24 (H)

M
4
B

PNEUMATIC
VALVE

+
-

DI-1

17
OUT 7

GND

AI-4 OHM

AI-5 V/mA

GND

AI-6 V/mA

22 VDC OUT

E-BUS

E-BUS
JACK

AI-3 OHM

AI-1 OHM

GND

NOT USED

AI-2 OHM

NOT USED

OUT 8

DI-2

E GND

TRIAC EQUIVALENT CIRCUIT

W7761A
REMOTE I/O
DEVICE

OUT 6

DI-3

OUT 5

DI-4

OUT 4

OUT 3

OUT 2

OUT 1

24 VAC

24 VAC COM

GND

24 VAC

REVERSE WIRES (INCREASE/DECREASE) TO REVERSE ACTION
(DIRECT/REVERSE).

MAKE SURE ALL TRANSFORMER/POWER WIRING IS AS SHOWN:
REVERSING TERMINATIONS WILL RESULT IN EQUIPMENT MALFUNCTION.

OPTIONAL 24 VAC WIRING TO NEXT CONTROLLER.

USE 1/4 IN (6 MM) PNEUMATIC TUBING. MINIMUM BRANCH LINE MUST BE
6 FT. (1.8M) OR LONGER.

EARTH GROUND WIRE LENGTH SHOULD BE HELD TO A MINIMUM.
USE THE HEAVIEST GAUGE WIRE AVAILABLE, UP TO 14 AWG (2.O MM2)
WITH A MINIMUM OF 18 AWG (1.O MM2), FOR EARTH GROUND WIRE.
M15278

Fig. 20. Typical Pneumatic transducer (Series 60 - Floating) to W7761A.

E-Bus Termination Module
One E-Bus Termination Module, part number 209541B is required for a single terminated E-Bus or two E-Bus Termination
Module, part number 209541B for a double terminated E-Bus (see Fig. 21). Refer to the E-Bus Wiring Guidelines form, 742865 for termination module placement rules.

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
W7753A

W7753A

1415

BROWN

W7753A

1415

ORANGE
PART NO. 209541B
TERMINATION
MODULE

PART NO. 209541B
TERMINATION
MODULE

BROWN

ORANGE

M12690

Fig. 21. Typical E-Bus termination module wiring diagrams (place a wire nut on each remaining wire that is not
connected to a controller or device).
See Fig. 22 for E-Bus termination wiring options.

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

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Fig. 22. E-Bus termination wiring options.

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

Step 5. Order Equipment
After compiling a bill of materials through completion of the previous application steps, refer to Table 8 for ordering information.
Contact Honeywell for information about Controllers and Wall Modules with no logo.
Table 8. Excel 10 W7761A Device Ordering Information.
Part Number

Product Description

Comments

Excel 10 W7761A
W7761A2002

Remote Input/Output Device

W7750A1007

Constant Volume AHU Controller (W7750A)

—

W7750B1005

Constant Volume AHU Controller (W7750B)

—

Excel 10 W7750 Controllers:

T7770 Wall Modules:
T7770A1006

Sensor with Honeywell Logo (Not used with RIO)

Used with Excel 5000 and Excel 10 Controllers

T7770A1014

Sensor with No Logo (Not used with RIO)

Used with Excel 5000 and Excel 10 Controllers

T7770A2004

Sensor with Network Jack and Honeywell Logo

Used with Excel 5000 and Excel 10 Controllers

T7770A2012

Sensor with Network Jack and No Logo

Used with Excel 5000 and Excel 10 Controllers

T7770B1004

Sensor with Setpoint and Network Jack, Honeywell Degrees F Absolute. Sensor—(current feature
Logo
that can be used with the RIO Device).

T7770B1046

Sensor with Setpoint and Network Jack, Honeywell Relative Setpoint. Sensor—(current feature
Logo
that can be used with the RIO Device).

T7770B1012

Sensor with Setpoint and Network Jack, No Logo

T7770B1020

Sensor with Setpoint and Network Jack, Honeywell Degrees C Absolute. Sensor—(current feature
Logo
that can be used with the RIO Device).

T7770B1053

Sensor with Setpoint and Network Jack, No Logo

Relative Setpoint. Sensor—(current feature
that can be used with the RIO Device).

T7770B1038

Sensor with Setpoint and Network Jack, No Logo

Degrees C Absolute. Sensor—(current feature
that can be used with the RIO Device).

T7770C1002

Sensor with Setpoint, Bypass/LED and Network
Jack, Honeywell Logo

Degrees F Absolute. Sensor—(current feature
that can be used with the RIO Device).

T7770C1044

Sensor with Setpoint, Bypass/LED and Network
Jack, Honeywell Logo

Relative Setpoint. Sensor—(current feature
that can be used with the RIO Device).

T7770C1010

Sensor with Setpoint, Bypass/LED and Network
Jack, No Logo

Degrees F Absolute. Sensor—(current feature
that can be used with the RIO Device).

T7770C1028

Sensor with Setpoint, Bypass/LED and Network
Jack, Honeywell Logo

Degrees C Absolute. Sensor—(current feature
that can be used with the RIO Device).

T7770C1051

Sensor with Setpoint, Bypass/LED and Network
Jack, No Logo

Relative Setpoint. Sensor—(current feature
that can be used with the RIO Device).

T7770C1036

Sensor with Setpoint, Bypass/LED and Network
Jack, No Logo

Degrees C Absolute. Sensor—(current feature
that can be used with the RIO Device).

T7770D1000

Sensor with Bypass/LED and Network Jack,
Honeywell Logo

Degrees F Absolute. Sensor—(current feature
that can be used with the RIO Device).

T7770D1018

Sensor with Bypass/LED and Network Jack, No
Logo

Degrees C Absolute. Sensor—(current feature
that can be used with the RIO Device).

T7780A1004

Sensor, Digital Display Wall Module with Network
Jack, Honeywell Logo

Degrees F Absolute (default)

T7780A1012

Sensor, Digital Display Wall Module with Network
Jack, No Logo

Degrees F Absolute (default)

Degrees F Absolute. Sensor—(current feature
that can be used with the RIO Device).

Sensors:
C7770A1006

Air Temperature Sensor. 20 Kohm NTC
nonlinearized

Duct-mounted sensor that functions as a
primary and/or secondary sensor.
(continued)

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EXCEL 10 W7761A INPUT/OUTPUT DEVICE

Part Number

Table 8. Excel 10 W7761A Device Ordering Information (Continued).
Product Description
Comments
Sensors (Continued):

C7031J1050

Averaging Discharge/Return Air Temperature
Sensor. 20 Kohm NTC

Duct element cord length 12 ft. (3.7m)

C7031B1033

Discharge Air or Hot Water Temperature Sensor.
20 Kohm NTC

Use 112622AA Immersion Well

C7031C1031

Duct Discharge/Return Air Sensor. 20 Kohm

18 in. (457mm) insertion length.

C7031D1062

Hot or chilled Water Temperature Sensor. 20 Kohm
NTC

C7031K1017

Hot or chilled Water Temperature Sensor. 20 Kohm
NTC

Strap-on

C7100A1015

Averaging Discharge/Return Air Temperature
Sensor. PT3000

13 in. (330mm) insertion length.

C7170A1002

Outdoor Air Temperature Sensor. PT3000

—

Echelon® Based Components and Parts:
Q7750A1003

Excel 10 Zone Manager

Free Topology Tranceiver (FTT)

Q7751A2002

Router

(FTT)

Q7752A2001

Serial Interface

(FTT)

Q7740A1008

Excel 10 2-Way Repeater

Used to extend the length of the E-Bus.
Contains built in termination modules.

Q7740B1006

Excel 10 4-Way Repeater

Used to extend the length of the E-Bus.
Contains built in termination modules.

XD 505A

Standard C-Bus Communications Submodule

—

XD 508

C-Bus Communications Submodule (1 megabit baud
rate)

—

209541B

Termination Module

One or two required per E-Bus segment

205979

Operator Terminal Cable for E-Bus

Serial interface to wall module or controller

Accessories:
EL7680A1008

Wall Mounted Wide View Infrared Occupancy
Sensor

—

EL7628A1007

Ceiling Mounted Infrared Occupancy Sensor

—

EL7611A1003,
EL7612A1001

Ultrasonic Occupancy Sensors

EL7630A1003,
EL7621A1002,
EL7621A1010

Power Supply/Control Units for Occupancy sensors

C7400A1004

Solid State Enthalpy Sensor (4 to 20 mA)

For outdoor and return air enthalpy

C7600B1000

Solid State Humidity Sensor (2 to 10 V)

For outdoor and return air humidity

C7600C1008

Solid State Humidity Sensor (4 to 20 mA)

For outdoor and return air humidity

C7600C1018

Solid State Humidity Sensor (2 to 10 V)

For outdoor and return air humidity

MMC325-010,
MMC325-020

Pneumatic Retrofit Transducers.
Use to control Pneumatic reheat valves
Select pressure range: (010) 0 to 10 psi (68.97 kPa)
or (020) 0 to 20 psi (137.93 kPa).

MMCA530

DIN rail adapter for MMC325 Transducers

—

MMCA540

Metal enclosure for MMC325 Transducers

—

ML7984B3000

Valve Actuator Pulse Width Modulation (PWM)

ML6161B1000

Damper Actuator Series 60

M6410A

Valve Actuator Series 60

Use with V5812/V5813 Valves

ML684A1025

Versadrive Valve Actuator with linkage, Series 60

Use with V5011 and V5013 Valves

ML6464A1009

Direct Coupled Actuator, 66 lb-in., Series 60

—
—

Use with V5011 or V5013 F and G Valves
—

—
(continued)

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EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table 8. Excel 10 W7761A Device Ordering Information (Continued).
Part Number

Product Description

Comments

Accessories (Continued):
ML6474A1008

Direct Coupled Actuator, 132 lb-in. torque, Series 60

—

ML6185A1000

Direct Coupled Actuator, 50 lb-in. spring return

EL7680A1008

Wall Mounted Wide View Infrared Occupancy Sensor

—

EL7628A1007

Ceiling Mounted Infrared Occupancy Sensor

—

EL7611A1003,
EL7612A1001

Ultrasonic Occupancy Sensors

EL7630A1003,
EL7621A1002,
EL7621A1010

Power Supply/Control Units for Occupancy sensors

C7400A1004

Solid State Enthalpy Sensor (4 to 20 mA)

For outdoor and return air enthalpy

C7600B1000

Solid State Humidity Sensor (2 to 10 V)

For outdoor and return air humidity

C7600C1008

Solid State Humidity Sensor (4 to 20 mA)

For outdoor and return air humidity

C7600C1018

Solid State Humidity Sensor (2 to 10 V)

For outdoor and return air humidity

MMC325-010,
MMC325-020

Pneumatic Retrofit Transducers.
Select pressure range: (010) 0 to 10 psi (68.97 kPa)
or (020) 0 to 20 psi (137.93 kPa).

Use to control Pneumatic reheat valves

MMCA530

DIN rail adapter for MMC325 Transducers

Series 60

—
—

—

MMCA540

Metal enclosure for MMC325 Transducers

ML7984B3000

Valve Actuator Pulse Width Modulation (PWM)

ML6161B1000

Damper Actuator Series 60

M6410A

Valve Actuator Series 60

Use with V5812/V5813 Valves

ML684A1025

Versadrive Valve Actuator with linkage, Series 60

Use with V5011 and V5013 Valves

ML6464A1009

Direct Coupled Actuator, 66 lb-in., Series 60

—

ML6474A1008

Direct Coupled Actuator, 132 lb-in. torque, Series 60

—

ML6185A1000

Direct Coupled Actuator, 50 lb-in. spring return

Series 60

V5812A

Two-way terminal unit water valve; 0.19, 0.29, 0.47,
0.74, 1.2, and 1.9 Cv 1/2 in. npt (13 mm) or
2.9 and 4.9 Cv 3/4 in. npt (19 mm)

Use with M6410 Valve Actuator. Close-off
rating for 0.19 to 1.9 Cv is 65 psi; for 2.9
and 4.9, Cv is 45 psi. (Coefficient of
volume or capacity index Cv = gallons per
minute divided by the square root of the
pressure drop across the valve.)

V5813A

Three-way mixing terminal unit hot water valve; 0.19,
0.29, 0.47, 0.74, 1.2, and 1.9 Cv 1/2 in. npt (13 mm)
or 2.9 and 4.9 Cv 3/4 in. npt (19 mm)
Contactor, 24 Vac coil, DPDT

Use with M6410 Valve Actuator. Close-off
rating 0.19 to 0.74 Cv is 55 psi; 1.2, and
1.9 Cv is 22 psi; 2.9 and 4.9 Cv is 26 psi.
—

R8242A

—

AT72D, AT88A, AK3310, etc. Transformers
EN 50 022

—
Use with V5011 or V5013 F and G Valves

—

DIN rail 35 mm by 7.5 mm (1-3/8 in. by 5/16 in.)

Obtain locally: A controller requires 5 in.

—

Augat Inc. part number 2TK2D DIN rail (adapter)

Purchase from Augat Inc. two DIN rail
adapters for each controller

—

Serial Interface Cable, male DB-9 to female DB-9 or
female DB-25.

Obtain locally from any computer
hardware vendor.

Cabling
Honeywell AK3791 (one
twisted pair) AK3792 (two
twisted pairs)

E-Bus (plenum): 22 AWG (0.34 mm2) twisted pair
solid conductor, nonshielded or Echelon approved
cable.

Honeywell AK3781 (one
twisted pair) AK3782 (two
twisted pairs)

E-Bus (nonplenum): 22 AWG (0.34 mm2) twisted pair Level IV 140°F (60°C) rating
solid conductor, nonshielded or Echelon approved
cable.

Honeywell AK3725

Inputs: 18 AWG (1.0 mm2) five wire cable bundle

Level IV 140°F (60°C) rating

Standard thermostat wire
(continued)

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EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table 8. Excel 10 W7761A Device Ordering Information (Continued).
Part Number

Product Description

Comments

Cabling (Continued):
Honeywell AK3752
(typical or equivalent)

Outputs/Power: 14 to 18 AWG (2.0 to 1.0 mm2)

NEC Class 2 140°F (60°C) rating

Honeywell AK3702
(typical or equivalent)

18 AWG (1.0 mm2) twisted pair

Non-plenum

Honeywell AK3712
(typical or equivalent)

16 AWG (1.3 mm2) twisted pair

Non-plenum

Honeywell AK3754
(typical or equivalent)

14 AWG (2.0 mm2) two conductor

Non-plenum

Step 6. Configure Devices
Excel E-Vision PC Software is used to configure W7761A Devices to match their intended application. The E-Vision User
Guide form, 74-2588 provides details for operating the PC software.

Step 7. Troubleshooting
Troubleshooting Excel 10 Controllers and Wall Modules
In addition to the following information, refer to the Installation Instructions and Checkout and Test manual for each product.
See the Applicable Literature section for form numbers.

Temperature Sensor and Setpoint Potentiometer Resistance Ranges
The T7770 Wall Module or the C7770A Air Temperature Sensor has the following specified calibration points, which are plotted
in Fig. 23:
Temperature (°F)
Resistance Value (ohms)
99
11,520
85
16,301
70
24,039
55
36,280
45
48,000
80K

RESISTANCE (OHMS)

70K
60K
50K
40K
30K
20K OHM AT
77oF (25oC)

20K
10K

30
0

50
10

70
20

90
30

TEMPERATURE (DEGREES)

100

110 oF
oC
40
M5874A

Fig. 23. Temperature sensor resistance plots.

Alarms
When an Excel 10 has an alarm condition, it reports it to the central node on the E-Bus (typically, the Excel 10 Zone Manager).
See Table 9. Information contained in an alarm message is:
• Subnet Number:
E-Bus subnet that contains the Excel 10 node that has the alarm condition. Subnet 1 is on the Zone Manager side of the
router; Subnet 2 is on the other side.
• Node Number:
Excel 10 node that has the alarm condition (see Network Status).
• Alarm Type:
Specific alarm being issued. An Excel 10 can provide the alarm types listed in Table 9.
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EXCEL 10 W7761A INPUT/OUTPUT DEVICE

Table 9. Excel 10 Alarms.
Alarm type
number

Name of alarm or error bit

Meaning of alarm code or error bit

RETURN_TO_NORMAL

128U

Return to no alarm after being in an alarm condition. This code is added
numerically to another alarm code to indicate that the alarm condition has
returned to normal.

ALARM_NOTIFY_DISABLED

255U

The alarm reporting has been turned off by the DestManMode. No more
alarms are reported via nvoAlarm until DestManMode turns on alarm repor
or upon application restart.

NO_ALARM

No alarms presently detected.

INPUT_NV_FAILURE

One or more NV inputs have failed in receiving an update within their spec
FAILURE_DETECT_TIME.

NODE_DISABLED

The control algorithm has stopped because the RIO device is in
DISABLED_MODE, MANUAL, or FACTORY_TEST mode. No more alarms
reported when the device is in the DISABLED_MODE. Alarms continue to
reported if the device is in the MANUAL or FACTORY_TEST mode. The
control is shut down and disabled until power is cycled or the node is reset
See note 1 below.

SENSOR_FAILURE

One or more sensors have failed.

NOTE: The node can be reset by switching the node to MANUAL and then to the normal operating mode.
Also, the Excel 10 variables, AlarmLogX where X is 1 through 5, that store the last five alarms to occur in the device, are
available. These points can be viewed through XBS or E-Vision.

Broadcasting the Service Message
The Service Message allows a device on the E-Bus to be positively identified. The Service Message contains the device ID
number and, therefore, can be used to confirm the physical location of a particular Excel 10 in a building.
There are two methods of broadcasting the Service Message from an Excel 10 W7761A Device. One uses a hardware service
pin button on the side of the device (see Fig. 24). The other involves using the PC Configuration tool, as follows.
The commissioning tool is used to perform the ID Assignment task (see the E-Vision User’s Guide form, 74-2588).
SERVICE
PIN
BUTTON

M10094

Fig. 24. Location of the Service Pin Button.

W7761A Device Status LED
The LED on the front and center of a W7761A Device provides a visual indication of the status of the device. See Fig. 25.
When the W7761A receives power, the LED should appear in one of the following allowable states (see Table 10):

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EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table 10. LED States.
Alarm Condition
None

1.
2.
3.
4.

Hardware or
Service LED Blink Rate
Software Failure
(Cycles per second)
None

Any alarm condition None

Don't Care

steady ON or OFF

Failed

Off—no power to the processor.
Continuously On—processor is in initialized state.
Slow Blink—controlling, normal state.
Fast Blink—when the Excel 10 has an alarm condition.
W7750

31
D 14

EARTH
`
GROUN D

30 29 28
27 26 25
24 23 22

GROU ND

LED

D13

BYPASS

D1 2

SENSOR

GROUN
D

GROUND

D1 1

SET PT

24 VAC

A1 1 R

C OM

GROUND

OUT 1

A1 2 R

OU T 2

A13 `
V/mA

21 20 19
18 17

OUT 3

GROU ND

OUT 4

A14V/mA

OU T 5

2 2 VD C`
OUT

OUT 6

OU T 7

16
OUT 8

EBUS

11 12 13
14 15

STATUS`
LED
M10095

Fig. 25. LED location on W7761A.

T7780 DDWM Bypass Pushbutton
See Fig. 26 for the T7780 DDWM bypass pushbutton location (occupied or unoccupied). The T7780 DDWM has two methods
for generating its neuron ID, shorting two pads or winking.
1. Pressing the bypass pushbutton whenever a Carat (∇) on the bottom of the LCD display is flashing (Menu Selection
Mode).
2. Pressing the bypass pushbutton when the T7780A DDWM is in wink mode (LCD display shows WINK when E-Vision
sends a Service Message out on the E-Bus).
When the space covered by the T7780 DDWM is in Occupied mode, the sun symbol is shown on the left side of the LCD
display. When the space is in Standby mode, the half-sun symbol is shown. When the space is in Unoccupied mode, the moon
symbol is shown.

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EXCEL 10 W7761A INPUT/OUTPUT DEVICE

T7780A

BYPASS
PUSHBUTTON

M11616

Fig. 26. Bypass pushbutton location on T7780 DDWM.

APPENDICES
Appendix A. Using E-Vision to Commission a W7761 Device.
CARE/E-Vision must be used to configure the W7761 device. The inputs and outputs will be configured through the application
selection menu (see E-Vision user guide form, 74-2588). The RIO does not contain control loops for directly controlling the
digital outputs, therefore the Zone Manager or some other device has to be bound to the outputs to perform the control
function. Refer to the CARE User’s Manual form, 74-5587 to add Control Strategy, Switching Logic, or Time Programs for
control of the RIO digital outputs. Refer to the E-Vision user guide (form, 74-2588 for the RIO commissioning procedure and
updating/downloading of the Zone Manager files.
NOTE: The RIO device does not synchronize the floating digital outputs. This function (position is synchronized whenever an
endpoint is reached (full open or full close).and when the elapsed time since the last synchronization is 24 hours)
must be done by the controlling device (such as the Zone Manager).

SENSOR CALIBRATION
The resistive temperature sensors and voltage/current inputs can all be calibrated. The wall module setpoint potentiometer is
not supported on the W7761A. Perform the sensor calibration by adding an offset value (either positive or negative) to the
sensed value using E-Vision menus (see E-Vision user guide form, 74-2588).
When calibrating voltage/current sensors on the W7761A, the offset amount entered by the user is in volts, regardless of the
inputs actual engineering units. See Appendix E for information on how to derive the proper voltage value to enter as an offset
during calibration.

CUSTOM MAPPING
The RIO default CARE plant contains all available points that are supported on the RIO device. If the RIO plant was
customized by deleting unused points, then the Custom mapping feature will have to be used to add points back into the plant
so that they can be used or monitored by other devices. The following procedures will describe the Custom mapping process
for adding analog/digital inputs and digital outputs.
ADDING ANALOG INPUTS - ENTHALPY (4 to 20 mA)
To add an enthalpy (outdoor or return air) sensor to an RIO plant, the user must add a software point (pseudo analog) that can
be mapped to the actual hardware input through the Custom Mapping function of E-Vision. The following procedure will instruct
the user on adding the pseudo analog and using the Custom Mapping function. This allows the enthalpy input to be used with
other Excel 10 controllers (referenced) on the E-Bus, used in Zone Manager control strategy or switching logic, or be used with
Excel 5000 controllers on the C-Bus.
1. With CARE running, open an existing RIO plant. The user can go into either switching logic or control strategy to add the
pseudo analog point. If the user does not have an existing control loop through control strategy, use switching logic to
add the pseudo point, otherwise a control loop will have to be created along with unnecessary RACL to add the point.
39

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EXCEL 10 W7761A INPUT/OUTPUT DEVICE

7.
8.

This procedure will use switching logic to add the pseudo analog point. With the RIO plant having the focus, go into
switching logic. Select the Software Points menu item and then Pseudo Analog. The Create/Select Software Point
dialog box will be displayed. Type in a New point name for the enthalpy sensor (such as OaEnthaply) and click on the OK
button. The new point that was just created will be added to the screen as the header point for switching logic table and
also added to the Point List . Select the Cancel button to exit the Create/Select Software Point dialog box. Exit
switching logic by selecting the File menu item and Exit. CARE will display the Delete Unused Software Points list box.
Click the Cancel button to continue.
Go into the Data Point Editor (Controller/Edit/Data Point Editor) and under Point select the pseudo analog point that was
just created and click the OK button. Select the drop down list for the Engineering Unit and scroll through the list until the
mA (mA matches the engineering unit of the RIO input) engineering units are displayed. Select the mA engineering unit
that is shown with one decimal place (number 66) and click the OK button to save the selection. Cancel the User
Address list box and select File/Exit to exit out of the Data Point Editor.
Translate the Zone Manager and Export the Zone Manager files to E-Vision by selecting the Project and Export to EVision menu items. Type in the name of the Zone Manager Export file when the Export Zone Manager dialog box is
displayed. Select the project and the Zone manager within that project that is being exported and click the Export button.
Exit CARE and Start E-Vision. Select the E-Vision project to open and the CARE Export Filename created above. Once
the project is open, select the RIO device that the enthalpy sensor is connected to and go into the Application Selection
screen (offline) by selecting the Controller, then the Application Selection menu items. From the Inputs tab of the
Application Selection dialog box, add Oa_Enthalpy to either analog input 5 or 6 and select the OK button to save the
selection.
Select the Controller menu item and then Import from CARE to import the Zone Manager files with the new pseudo
analog point. If this function has already been performed before, the user will be prompted with the message CARE
Export File has already been imported, do you want to import again?. Select Yes to continue with the Import. When the
import is finished, E-Vision displays the message CARE Export File has been imported. Select OK to continue.
Select the Network menu item and then Map C-Bus Points. Select RIO1 as the Controller Type from the Map C-Bus
Points dialog box. Under Unmapped CARE, select the name of the RIO device that the enthalpy sensor was added to in
CARE. Under Unmapped Excel 10, select the name of the RIO device that the actual enthalpy sensor was added to
(both names should be the same). Next, select the Custom button and the Custom Mapping CARE Points dialog box will
be displayed. Select the OaEnthalpy point under CARE Points and CurrentAI under Excel 10. CurrentAI is the user
address in the RIO device that contains the actual sensor value for the OaEnthalpy (C7400A1004, 4 to 20 mA device).
Select the Map button to add the OaEnthalpy point to the list of Mapped Points. Click on the Close button to exit the
Custom Mapping CARE Points dialog box. Click on the Close button to exit the Map C-Bus Points dialog box.
To use the OaEnthalpy custom mapped point with other Excel 10 controllers on the E-Bus, select the Network menu item
and Refer Excel 10 Points. Select the RIO device name as the Source Excel 10 and then scroll down the list of Excel 10
Points: until you reach CurrentAI and select it. Select an Excel 10 controller from the Destination Excel 10 list. For
example if the user had selected a CVAHU controller from the Destination Excel 10 list, the user would select from the
Excel 10 Points list as the destination point and then click on the Add button to add the point association (Binding)
between the RIO and CVAHU controllers. If DestOaEnth is already being used in an association, then the message At
Least one of the output network variables is in an existing connection and E-Vision will not allow this association to be
added. In order to add this association, the user has to remove any other associations with the DestOaEnth point. Select
the Close button to exit out of the Refer Excel 10 Points dialog box. Any controllers involved in the new association or
change in an existing association will require commissioning.
Select the Controller menu item and the Update Zone Manager Files. E-Vision will add the custom mapping information
to the Zone Manager files. When the Update Zone Manager Files function is done, commission any controllers that need
to be commissioned, then close the E-Vision project and exit out of E-Vision.
Start CARE and open the Zone Manager that was just updated through the Update Zone Manager Files function and
start XI584 by selecting the Controller, Tools and XI584 menu items. Once XI584 is started, select the Utilities and File
Transfer menu items and select CARE Import. Select the project and the Zone Manager that was just updated and select
Import and click OK on the Select Target Controller dialog box. When the CARE Import is complete, close the CARE
Import dialog box. If this is the initial loading of the Zone Manager, then it will have to be reset and the CPU address set
by the XI581 Emulation function (Applications, XI581 Emulation menu). Select the Utilities, File Transfer menu items and
select Download. The Download dialog box will be displayed. Check the All selection and click the Controller button.
When the Select Controller/Subsystem dialog box is displayed, make sure that the correct CPU address or name is high
lighted and select the OK button. Click the Download button and click Yes to the message Replace updated application
part in controller (CPU address or Controller name). When the download is complete, exit out of the Download dialog
box. From the XI584 main menu, select the Data, Access by User Address menu items. Type OaEnthalpy in the Search
For User Address and click the Search button. When the OaEnthalpy point displays in the User Addresses list, click on
the point and select the Attributes button. XI584 will now display the value of the enthalpy sensor connected to the RIO
device. This point can now be used in the Zone Manager control strategy or switching logic. This point can be used in
other Excel 5000 (C-Bus) controllers by assigning a global analog point in the destination controller with the user address
name of OaEnthalpy. Refer to the CARE User’s Manual form, 74-5587 for information on creating global points in Excel
5000 controllers.

ADDING OTHER VOLTAGE/CURRENT SENSORS
See Table A-1 for the supported Voltage/Current analog input sensors that can be connected to the RIO Device. The user
must add a software point (pseudo analog - in RIO CARE Plant) that can be mapped to the actual hardware input (RIO Plant)
through the Custom Mapping function of E-Vision. The procedure described previously for adding an enthalpy ( 4 to 20 mA)
sensor should be followed and instructs the user on adding the pseudo analog point in the RIO CARE Plant and using the
40

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EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Custom Mapping function. From there it can be used with other Excel 10 controllers (referenced) on the E-Bus, that are used in
the Zone Manager control strategy or switching logic, or are used with Excel 5000 controllers on the C-Bus.
Table A-1. Supported Voltage And Current Input Sensors.
E-Vision Enumerated Name in the Input
Application Selection Tab

RIO Network Variable that contains the
Hardware Input Value

RA_Hum_C7600C

Humidity1 or Humidity2

OA_Hum_C7600C

Humidity1 or Humidity2

Filter_Diff_Pres

Pressure1 or Pressure2

RA_Hum_C7600B

Humidity1 or Humidity2

OA_Hum_C7600B

Humidity1 or Humidity2

RA_Enthalpy

CurrentAI

OA_Enthalpy

CurrentAI

Space_CO2

CO2Level

Voltage_Monitor

VoltageAI

ADDING DIGITAL INPUTS
See Table A-2 for the supported Digital input types that can be connected to the RIO Device. The user must add a software
point (pseudo digital nstate - in RIO CARE Plant) that can be mapped to the actual hardware input (RIO Plant) through the
Custom Mapping function of E-Vision. The procedure described previously for adding an enthalpy ( 4 to 20 mA) sensor should
be followed. The user will add a Pseudo Digital nstate point () in step one instead of the Pseudo Analog to the RIO CARE
Plant and then use the Custom Mapping function. From there it can be used with other Excel 10 controllers (referenced) on the
E-Bus, that are used in Zone Manager control strategy or switching logic, or are used with Excel 5000 controllers on the C-Bus.
Table A-2. Supported Digital Input Types.
E-Vision Enumerated Name in the Input
Application Selection Tab

RIO Network Variable that contains the
Hardware Input Value

Digital Input 1:
Active_Short / Active_Open

SrcDigIn1Sts

Digital Input 2:
Active_Short / Active_Open

SrcDigIn2Sts

Digital Input 3:
Active_Short / Active_Open

SrcDigIn3Sts

Digital Input 4:
Active_Short / Active_Open

SrcDigIn4Sts

ADDING DIGITAL OUTPUTS
See Table A-3 for the supported digital output types that can be connected to the RIO Device.
The user must add a software point (pseudo analog) that can be mapped to the actual hardware output through the Custom
Mapping function of E-Vision. The following procedure will instruct the user on adding the pseudo analog and using the Custom
Mapping function so that the Digital Output can be used in the Zone Manager control strategy or switching logic, or be used
with Excel 5000 controllers on the C-Bus.
1. With CARE running, open an existing RIO plant. The user can go into either switching logic or control strategy to add the
pseudo analog point. If the user does not have an existing control loop through control strategy, use switching logic to
add the pseudo point, otherwise a control loop will have to be created along with unnecessary RACL to add the point.
This procedure will use switching logic to add the pseudo analog point. With the RIO plant having the focus, go into
switching logic. Select the Software Points menu item and then Pseudo Analog. The Create/Select Software Point
dialog box will be displayed. Type in a New point name for the Digital Output (such as MiscExhFan) and click on the OK
button. The new point that was just created will be added to the screen as the header point for switching logic table and
also added to the Point list. Select the Cancel button to exit the Create/Select Software Point dialog box. Exit
switching logic by selecting the File menu item and Exit. CARE will display the Delete Unused Software Points list box.
Click the Cancel button to continue.
2. Go into the Data Point Editor (Controller/Edit/Data Point Editor) and under Point select the pseudo analog point that was
just created and the OK button. Select the drop down list for the Engineering Unit and scroll through the list until the Pct
engineering units are displayed. Select the Pct engineering unit that is shown with one decimal place (number 55) and
the OK button to save the selection. Cancel the User Address list box and select File/Exit to exit out of the Data Point
Editor.
3. Translate the Zone Manager and Export the Zone Manager files to E-Vision by selecting the Project and Export to EVision menu items. Type in the name of the Zone Manager Export file when the Export Zone Manager dialog box is
41

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EXCEL 10 W7761A INPUT/OUTPUT DEVICE

6.
7.
8.

displayed. Select the project and the Zone manager within that project that is being exported and the Export button. Exit
CARE and Start E-Vision. Select the E-Vision project to open and the CARE Export Filename created previously. Once
the project is open, select the RIO device that the Digital Output is connected to and go into the Application Selection
screen (offline) by selecting the Controller, Application Selection menu items. From the Outputs tab of the Application
Selection dialog box, select the first Unused_DigOutput and scroll up until Discrete1 is displayed and select it. Select the
OK button to save the selection.
Select the Controller menu item and then Import from CARE to import the Zone Manager files with the new pseudo
analog point. If this function has already been performed before, the user will be prompted with the message CARE
Export File has already been imported, do you want to import again?. Select Yes to continue with the Import. When the
import is finished, E-Vision displays the message CARE Export File has been imported. Select OK to continue.
Select the Network menu item and then Map C-Bus Points. Select RIO1 as the Controller Type from the Map C-Bus
Points dialog box. Under Unmapped CARE, select the name of the RIO device that the Digital Output was added to in
CARE. Under Unmapped Excel 10, select the name of the RIO device that the actual Digital Output was added to (both
names should be the same). Next, select the Custom button and the Custom Mapping CARE Points dialog box will be
displayed. Select the MiscExhFan point under CARE Points and DigOut1Cmd under Excel 10. Select the Map button to
add the MiscExhFan point to the list of Mapped Points. Click on the Close button to exit the Custom Mapping CARE
Points dialog box. Click on the Close button to exit the Map C-Bus Points dialog box.
Re-commission the RIO device that had the custom mapping done.
Select the Controller menu item and the Update Zone Manager Files. E-Vision will add the custom mapping information
to the Zone Manager files. When the Update Zone Manager Files function is done, close the E-Vision project and exit out
of E-Vision.
Start CARE and open the Zone Manager that was just updated through the Update Zone Manager Files function and
start XI584 by selecting the Controller, Tools and XI584 menu items. Once XI584 is started, select the Utilities, File
Transfer menu items and select CARE Import. Select the project and the Zone Manager that was just updated and select
Import and click OK on the Select Target Controller dialog box. When the CARE Import is complete, close the CARE
Import dialog box. If this is the initial loading of the Zone Manager, then it will have to be reset and the CPU address set
by the XI581 Emulation function (Applications, XI581 Emulation menu). Select the Utilities, File Transfer menu items and
select Download. The Download dialog box will be displayed. Check the All selection and click the Controller button.
When the Select Controller/Subsystem dialog box is displayed, make sure that the correct CPU address or name is
highlighted and select the OK button. Click the Download button and Yes to the message Replace updated application
part in controller (CPU address or Controller name). When the download is complete, exit out of the Download dialog
box. From the XI584 main menu, select the Data, Access by User Address menu items. Type MiscExhFan in the Search
For User Address and click on the Search button. When the MiscExhFan point displays in the User Addresses list, click
on the point and select the Attributes button. XI584 will now display the value of the Digital Output connected to the RIO
device. To command the MiscExhFan to the On mode, put the point in the Manual mode and enter a value of 1.0 or
greater. To command the MiscExhFan to the Off mode, put the point in the Manual mode and enter a value of 0.0. This
point can now be used in the Zone Manager control strategy or switching logic and Time Programs. This point can be
used in other Excel 5000 controllers (C-Bus) by assigning a global analog point in the destination controller with the user
address name of MiscExhFan. Refer to the CARE User’s Manual form, 74-5587 for information on creating global points
in Excel 5000 controllers.
Table A-3. Supported Digital Output Types.
E-Vision Enumerated Name in the Output
Application Selection Tab

RIO Network Variable that contains the
Hardware Output Value

Float1_Open through Float8_Open (Series 60 requires two outputs assigned. Float1_Open
must be assigned before Float1_Close)

DigOut1Cmd through DigOut8Cmd

Float1_Close through Float8_Close (Series 60
- requires two outputs assigned. Float1_Open
must be assigned before Float1_Close)

DigOut1Cmd through DigOut8Cmd

Discrete1 through Discrete8 (Maintained On/Off
outputs)

DigOut1Cmd through DigOut8Cmd

Modulate1 through Modulate8 (PWM outputs)

DigOut1Cmd through DigOut8Cmd

Appendix B. Sequences of Operation.
Common Operations
The Excel 10 W7761A Device contains inputs and outputs, but no control software. All control that would be associated with
the inputs and outputs in the W7761A would be accomplished though the Excel Zone Manager and would not be suitable for
VAV control, temperature control, or any control function that would require less than a 30 second update rate. The analog and
digital sensors could be shared or bound to other Excel 10 controllers on the E-Bus or Excel 5000 controllers on the C-Bus
through the Excel 10 Zone Manager. This would allow the other Excel 10 controllers to use their physical inputs for monitoring
other elements such as return humidity, IAQ, etc. to achieve better control.
Room Temperature Sensor (RmTemp)
42

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EXCEL 10 W7761A INPUT/OUTPUT DEVICE
The T7770A,B,C,D wall module is the room space temperature sensor—(current feature that can be used with the RIO
Device). When it is configured, it provides the temperature input that can be shared with the W7750 or W7751 controllers. If
there are multiple space sensors in a area controlled by one W7750 CVAHU, then the space temperatures can be wired into
the W7761A controller and mapped to the Zone Manager. The Zone Manager can average all of the space temperatures and
then have that value can be bound to the W7750 controlling that area.
Window Sensor (StatusWndw)
The digital input for a window contact can be wired into the W7761A device and then bound to a W7750 CVAHU to disable its
temperature control algorithm if someone has opened a window or door in the room or area that the W7750 is serving. When a
window is detected to be Open (digital input contacts Open equals window open), the normal temperature control is disabled,
and the W7750 Controller enters the Freeze Protect mode. Freeze Protect mode sets the space setpoint to 50 °F (10°C) and
brings on the fan and heat if the space temperature falls below this setpoint. Normal temperature control resumes on window
closure.
Dirty Filter Monitor
The air filter in the air handler can be monitored by a digital input in the W7761A and an alarm issued by the Zone Manager
when the filter media needs replacement. The two methods of monitoring the filter are:
1. A differential pressure switch whose contacts are connected to a digital input on the W7761A and;
2. A 2 to 10V differential pressure sensor wired to a voltage input on the W7761A. If the analog input sensor is used, its
measured value 0 to 5 inw (0 to 1.25 kPa) is compared to a user-selectable setpoint in the Zone Manager, the
comparison is done in the Zone Manager - valid range: 0 to 5 inw (0 to 1.25 kPa), and the Dirty Filter alarm is issued by
the Zone Manager when the pressure drop across the filter exceeds the setpoint.
Series 60 Modulating Control
Series 60 Control is also commonly referred to as Floating Control. The Excel 10 W7761A Device can drive Series 60 type
actuators to control a modulating damper or valve actuator. The W7761A device contains no control software, so these outputs
would have to be bound to either the Zone Manager or other Excel 10 controllers. When floating control is used, the full-stroke
motor drive time of the actuator must be entered into the configuration parameter DO1FlSpeed (for output 1), DO2FlSpeed (for
output 2). When Floating control is configured, two digital outputs are required, so the user has to change the configuration
parameter for the appropriate digital outputs.
Pulse Width Modulating (PWM) Control
The Excel 10 W7761A device can drive a PWM-type actuator to control a modulating actuator. The W7761A device contains
no control software, so these outputs would have to be bound to either the Zone Manager or other Excel 10 controllers. PWM
control positions the actuator based on the length, in seconds, of the pulse from the digital output. The controller outputs a
pulse whose length consists of two parts, a minimum and a maximum. The minimum pulse time represents the analog value of
zero percent (also indicates a signal presence) and the maximum pulse length that represents an analog value of 100 percent.
If the analog value is greater than zero percent, an additional time is added to the minimum pulse time. The length of time
added is directly proportional to the magnitude of the analog value. If PWM control is used, the configuration parameters for
the PWM operation must be specified. These parameters are DO1PWMPeriod and PWMZeroScale, and PWMFullScale.
Example: To find the pulse width of a valve actuator (for example stroke mid position - 50 percent) with the PWMZeroScale =
0.1 seconds, PWMFullScale = 25.5 seconds, and the PWMPeriod = 25.6 seconds. There are 256 increments available, so the
number of increments required for 50 percent would be (0.5 X 256) or 128. The time for each increment for this industry
standard pulse time is 0.1 seconds. The pulse width is the minimum time (0.1 second) + the number of increments (128 times
the seconds added 0.1) = 12.9 seconds. The W7750B Controller would command the valve output on for 12.9 seconds every
25.6 seconds to maintain the valve position at 50 percent.
Indoor Air Quality (IAQ) Override
The Excel 10 W7761A Device can monitor an IAQ sensor and that input can be bound to a W7750 CVAHU Controller that
supports an IAQ override feature, that upon detection of poor air quality in the space, allows the economizer dampers to be
opened above the standard minimum position setting to a value set in EconIAQPos (parameter located in W7750). Two
different methods of detecting poor air quality are supported, The first is by using an IAQ switch device connected to a digital
input on the W7761A Device, where a contact closure indicates poor air quality. This digital input would then be bound to the
W7750 Controller that is serving the area being monitored and would initiate the IAQ override mode. The second is through an
analog input that connects to a CO2 Sensor (0 to 10V). The measured value of CO2 from this sensor (0 to 2000 ppm) is
mapped into the Zone Manager where it is compared to a setpoint (parameter located in the Zone Manager). When the CO2
level is higher than the setpoint, the Zone Manager can initiate an IAQ alarm. A pseudo digital point in the Zone Manager can
be bound to the W7750 CVAHU Controller which can initiate the IAQ override mode.

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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)
Measured Item

Description

Standard International Units (SI)

Abbreviation

Description

Abbreviation

Temperature

Degrees Fahrenheit

Degrees Celsius

Relative
Temperature

Delta Degrees Fahrenheit

DDF

Degrees Kelvin

Relative Humidity

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
of Air

kiloJoules/kilogram

kJ/kg

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
relationship with a C-Bus User Address.
Direct
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
parameters that are set in the Application Selection dialog boxes in E-Vision.
Hardware
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.
44

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EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table C1. Input/Output Points (Left).

User Address

NvName

Engineering Units:
English (Metric) or
States plus Range

Field Name

Digital
State
or
Value
of
State

Default

AI1RType

ncirioIoSelect

ResistiveIn0

DA_Temp_PT3000
OA_Temp_PT3000
RA_Temp_PT3000
Custom_PT3000
DA_Temp_20KNTC
RA_Temp_20KNTC
Space_Temp_T7770
Custom_20KNTC
Unused_Res_AI

AI2RType

ncirioIoSelect

ResistiveIn1

See AI1RType Eng. Units/States
column for selections

Unused_Res_AI

AI3RType

ncirioIoSelect

ResistiveIn2

See AI1RType Eng. Units/States
column for selections

Unused_Res_AI

AI4RType

ncirioIoSelect

ResistiveIn3

See AI1RType Eng. Units/States
column for selections

Unused_Res_AI

AI5VType

ncirioIoSelect

VoltageIn0

RA_Hum_C7600C
OA_Hum_C7600C
Filter_Diff_Pres
RA_Hum_C7600B
OA_Hum_C7600B
RA_Enthalpy
OA_Enthalpy
Space_CO2
Voltage_Monitor
Unused_Volt_AI

AI6VType

ncirioIoSelect

VoltageIn1

See AI5VType Eng. Units/States
column for selections

0
1
2
3
4
5
6
7
255

0
1
2
3
4
5
6
7
8
255

Unused_Res_AI

Unused_Volt_AI

(continued)

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table C1. Input/Output Points (Right).
Share (SH), Map (MA), Direct Access (DA)
E-Vision (EV): Calibrate (C), Monitor (M),
Parameter (P), Schematic (S)
Hardware Configuration (HW),
Manual Point (MN), Test (TS)
SH

Comments

AI1RType specifies which logical sensor is assigned to which physical analog input
sensor channel according to the enumerated list shown in the Eng. Units/States
column.

AI2RType: Refer to the description for AI1RType.

AI3RType: Refer to the description for AI1RType.

AI4RType: Refer to the description for AI1RType.

AI5VType specifies which logical voltage or current sensor is assigned to which
physical analog input sensor channel according to the enumerated list that is
shown in the Eng. Units/States column.

AI6VType: Refer to the description for AI5VType.

(continued)

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table C1. Input/Output Points (Left Continued).

User Address

NvName

Field Name

Engineering Units:
English (Metric) or
States plus Range

Digital
State
or
Value
of
State

Default

DestOut1Cmd

nviRemoteCmd(0)

percent
-163 to 163

DestOut2Cmd

nviRemoteCmd(1)

percent -163 to 163

DestOut3Cmd

nviRemoteCmd(2)

percent -163 to 163

DestOut4Cmd

nviRemoteCmd(3)

percent -163 to 163

DestOut5Cmd

nviRemoteCmd(4)

percent -163 to 163

DestOut6Cmd

nviRemoteCmd(5)

percent -163 to 163

DestOut7Cmd

nviRemoteCmd(6)

percent -163 to 163

DestOut8Cmd

nviRemoteCmd(7)

percent -163 to 163

DI1Sel1Type

ncirioIoSelect

DigitalIn0S1

Active_Short
Active_Open
Unused_DigInput

DI2Sel1Type

ncirioIoSelect

DigitalIn1S1

See DI1Sel1Type Eng.
Units/States column for
selections.

0
1
255

Unused_DigInput

(continued)

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table C1. Input/Output Points (Right Continued).
Share (SH), Map (MA), Direct Access (DA)
E-Vision (EV): Calibrate (C), Monitor (M),
Parameter (P), Schematic (S)
Hardware Configuration (HW),
Manual Point (MN), Test (TS)
SH

Comments

DestOut1Cmd: DestOut1Cmd through DestOut8Cmd corresponds to DO1 through
DO8. Refer to the Eng. Units/States column for DO1Type for the enumerated
values that can be assigned to any output channels.
Note that a selection of FLOAT means that the two DO channels are used for
output. RIO assumes that the tool makes the proper assignment of enumerated
values to DO1 through DO8 and also takes the responsibility to avoid assignment
of multiple or overlapping commands on the same output channels. An example of
the relationship between nviRemoteCmd and ncirioIoSelect is discribed below:
RIO is receiving a command to DestOut4Cmd. This can be mapped as one of the
three output types (Discrete, Modulate, Float_Open, or Float_Close) by DO3Type.
If the user selects an enumerated value of Discrete2 for DO3Type, this value would
be stored in (DO2). Then the DestOut4Cmd will command DO2.

DestOut2Cmd: Refer to the description for DestOut1Cmd.

DestOut3Cmd: Refer to the description for DestOut1Cmd.

DestOut4Cmd: Refer to the description for DestOut1Cmd.

DestOut5Cmd: Refer to the description for DestOut1Cmd.

DestOut6Cmd: Refer to the description for DestOut1Cmd.

DestOut7Cmd: Refer to the description for DestOut1Cmd.

DestOut8Cmd: Refer to the description for DestOut1Cmd.

DI1Sel1Type specifies the sensor type and function connected to DigitalIn0S1
through DigitalIn3S1. The valid enumerated list of logical digital states for
DigitalIn0S1 is listed in the Eng. Units/States column.

DI2Sel1Type: Refer to the description for DI1Sel1Type.

(continued)

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table C1. Input/Output Points (Left Continued).

User Address

NvName

Field Name

Engineering Units:
English (Metric) or
States plus Range

Digital
State
or
Value
of
State

Default

DI3Sel1Type

ncirioIoSelect

DigitalIn2S1

See DI1Sel1Type Eng. Units/States
column for selections.

Unused_DigInput

DI4Sel1Type

ncirioIoSelect

DigitalIn3S1

See DI1Sel1Type Eng. Units/States
column for selections.

Unused_DigInput

DI1Sel2Type

ncirioIoSelect

DigitalIn0S2

Momentary
Maintained
Unused_DigInput

DI2Sel2Type

ncirioIoSelect

DigitalIn1S2

See DI1Sel2Type Eng. Units/States
column for selections.

Maintained

DI3Sel2Type

ncirioIoSelect

DigitalIn2S2

See DI1Sel2Type Eng. Units/States
column for selections.

Maintained

DI4Sel2Type

ncirioIoSelect

DigitalIn3S2

See DI1Sel2Type Eng. Units/States
column for selections.

Maintained

DO1Type

ncirioIoSelect

DigitalOut0

Discrete1
Discrete2
Discrete3
Discrete4
Discrete5
Discrete6
Discrete7
Discrete8
Modulate1
Modulate2
Modulate3
Modulate4
Modulate5
Modulate6
Modulate7
Modulate8
Float1_Open
Float2_Open
Float3_Open
Float4_Open
Float5_Open
Float6_Open
Float7_Open
Float8_Open
Float1_Close
Float2_Close
Float3_Close
Float4_Close
Float5_Close
Float6_Close
Float7_Close
Float8_Close
Unused_DigOutput

0
1
255

0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
255

Maintained

Unused_DigOutput

74-2699

Comments

DI3Sel1Type: Refer to the description for DI1Sel1Type.

DI4Sel1Type: Refer to the description for DI1Sel1Type.

DI1Sel2Type specifies the sensor type and function connected to DigitalIn0S2
through DigitalIn3S2. The valid enumerated list of logical digital states for
DI1Sel2Type is listed in the Eng. Units/States column.

DI2Sel2Type: Refer to the description for DI1Sel2Type.

DI3Sel2Type: Refer to the description for DI1Sel2Type.

DI4Sel2Type: Refer to the description for DI1Sel2Type.

DO1Type specifies which logical digital output function is assigned to the digital
physical output according to the enumerated list that is shown in the Eng.
Units/States column.

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table C1. Input/Output Points (Left Continued).

User Address

NvName

Engineering Units:
English (Metric) or
States plus Range

Field Name

Digital
State
or
Value
of
State

Default

DO2Type

ncirioIoSelect

DigitalOut1

Refer to the Eng. Units/States
column for DO1Type for selections
available.

Unused_DigOutput

DO3Type

ncirioIoSelect

DigitalOut2

Refer to the Eng. Units/States
column for DO1Type for selections
available.

Unused_DigOutput

DO4Type

ncirioIoSelect

DigitalOut3

Refer to the Eng. Units/States
column for DO1Type for selections
available.

Unused_DigOutput

DO5Type

ncirioIoSelect

DigitalOut4

Refer to the Eng. Units/States
column for DO1Type for selections
available.

Unused_DigOutput

DO6Type

ncirioIoSelect

DigitalOut5

Refer to the Eng. Units/States
column for DO1Type for selections
available.

Unused_DigOutput

DO7Type

ncirioIoSelect

DigitalOut6

Refer to the Eng. Units/States
column for DO1Type for selections
available.

Unused_DigOutput

DO8Type

ncirioIoSelect

DigitalOut7

Refer to the Eng. Units/States
column for DO1Type for selections
available.

Unused_DigOutput

FiftySixtyHz

nciIoSelect

FiftySixtyHz

Sixty
Fifty

SrcCO2Level

nvoRemoteCO2

PPM
0 to 65535

SrcCurrentAI

nvoRemoteCurrent

milliamps
-20.0 to 200.0

SrcDigIn1Sts

nvoRemoteDigIn(0)

DI1Value

0 to 255

nvoRemoteDigIn(0)

DI1State

ST_OFF
ST_LOW
ST_MED
ST_HIGH
ST_ON
ST_NUL

0
1

0
1
2
3
4
255

Sixty

ST_NUL

(continued)

74-2699

Comments

DO2Type:
Refer to the description for DO1Type.

DO3Type:
Refer to the description for DO1Type.

DO4Type:
Refer to the description for DO1Type.

DO5Type:
Refer to the description for DO1Type.

DO6Type:
Refer to the description for DO1Type.

DO7Type:
Refer to the description for DO1Type.

DO8Type:
Refer to the description for DO1Type.

FiftySixtyHz specifies the power supply frequency. Correctly selecting FiftySixtyHz
decreases the noise picked up by analog sensor wiring from the power supply.
When FiftySixtyHz is 1, the power supply frequency is Fifty Hz and when
FiftySixtyHz is 0, the power supply frequency is Sixty Hz.

SrcCO2Level is an output network variable corresponding to the voltage or current
input channel (AI5 or AI6) if the selection for a CO2 sensor was made via
ncirioIoSelect.

SrcCurrentAI is an output network variable corresponding to the voltage or current
input channel (AI5 or AI6) if the selection for a current sensor was made via
ncirioIoSelect.
SrcDigIn1Sts: There are four digital input channels (DI1 through DI4). If any of the
four channels are configured, the corresponding output network variable will be
updated with the value whose data type is SNVT_switch.

DI1State: There are four digital input channels (DI1 through DI4). If any of the four
channels are configured, the corresponding output network variable will be updated
with the value whose data type is SNVT_switch. Refer to the enumerated list that is
shown in the Eng. Units/States column.

(continued)

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table C1. Input/Output Points (Left Continued).

User Address
SrcDigIn2Sts

SrcDigIn3Sts

SrcDigIn4Sts

NvName

Engineering Units:
English (Metric) or
States plus Range

Field Name

Digital
State
or
Value
of
State

Default

nvoRemoteDigIn(1)

DI2Value

0 to 255

nvoRemoteDigIn(1)

DI2State

Refer to the DI1State enumerated list
shown in the Eng. Units/States column.

ST_NUL

nvoRemoteDigIn(2)

DI3Value

0 to 255

nvoRemoteDigIn(2)

DI3State

Refer to the DI1State enumerated list
shown in the Eng. Units/States column.

ST_NUL

nvoRemoteDigIn(3)

DI4Value

0 to 255

nvoRemoteDigIn(3)

DI4State

Refer to the DI1State enumerated list
shown in the Eng. Units/States column.

ST_NUL

SrcHumidAI5

nvoRemoteHum(0)

percent
-163 to 163

SrcHumidAI6

nvoRemoteHum(1)

percent
-163 to 163

SrcPressAI5

nvoRemotePres(0)

inw -131.5 to 131.5
kPa (-32.768 to 32.767)

SrcPressAI6

nvoRemotePres(1)

inw -131.5 to 131.5
kPa (-32.768 to 32.767)

SrcTempAI1

nvoRemoteTemp(0)

degrees F -40 to 240
degrees C (-40 to 116)

SrcTempAI2

nvoRemoteTemp(1)

degrees F -40 to 240
degrees C (-40 to 116)

SrcTempAI3

nvoRemoteTemp(2)

degrees F -40 to 240
degrees C (-40 to 116)

SrcTempAI4

nvoRemoteTemp(3)

degrees F -40 to 240
degrees C (-40 to 116)

SrcVoltageAI

nvoRemoteVolt

Volts
0.0 to 10.5

)

74-2699

Comments
SrcDigIn2Sts: Refer to the description for SrcDigIn1Sts.

DI2State:
Refer to the description for DI1State.

DI3State:
Refer to the description for DI1State.

DI4State:
Refer to the description for DI1State.

SrcHumidAI5 is an output network variable corresponding to the voltage or current
input channel (AI5) if the selection for humidity sensor was made via ncirioIoSelect
for AI5.

SrcHumidAI6 is an output network variable corresponding to the voltage or current
input channel (AI6) if the selection for humidity sensor was made via ncirioIoSelect
for AI6.

SrcPressAI5 is an output network variable corresponding to the voltage or current
input channel (AI5) if the selection for a pressure sensor was made via
ncirioIoSelect for AI5.

SrcPressAI6 is an output network variable corresponding to the voltage or current
input channel (AI6) if the selection for a pressure sensor was made via
ncirioIoSelect for AI6.

SrcTempAI1 is an output network variable corresponding to the analog input
channel (AI1). This NV will contain AI1 temperature value with the OffsetCal1AI1
applied to it.

SrcTempAI2 is an output network variable corresponding to the analog input
channel (AI2). This NV will contain AI2 temperature value with the OffsetCal1AI2
applied to it.

SrcTempAI3 is an output network variable corresponding to the analog input
channel (AI3). This NV will contain AI3 temperature value with the OffsetCal1AI3
applied to it.

SrcTempAI4 is an output network variable corresponding to the analog input
channel (AI4). This NV will contain AI4 temperature value with the OffsetCal1AI4
applied to it.

SrcVoltageAI is an output network variable corresponding to the voltage or current
input channel (AI5 or AI6) if the selection for a voltage sensor was made via
ncirioIoSelect.

SrcDigIn3Sts: Refer to the description for SrcDigIn1Sts above.

SrcDigIn4Sts: Refer to the description for SrcDigIn1Sts above.

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table C2. Control Parameters (Left).

User Address

NvName
nviInUse

Field Name
InUseNumber

Engineering Units:
English (Metric) or
States plus Range
0 to 65534

Digital
State
or
Value
of
State

Default
0xFFFF

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table C2. Control Parameters (Right).
Share (SH), Map (MA), Direct Access (DA)
E-Vision (EV): Calibrate (C), Monitor (M),
Parameter (P), Schematic (S)
Hardware Configuration (HW),
Manual Point (MN), Test (TS)
SH

Comments
nviInUse is used by a management node to indicate to all other management
nodes that it is logged on, to the Excel 10 node and that they should not try to
interact with any of the Excel 10s network variables. Before the management node
reads or writes any network variables, the management node checks nviInUse for
a zero value meaning no other management nodes are already logged on and that
a management node may log on, to the node. Then the management node writes a
number, 1 through 65534, to nviInUse and periodically writes the same value to
indicate that the management node is still logged on. If there are no writes made to
nviInUse for approximately 60 seconds, then the Excel 10 resets nviInUse to zero
to automatically log off the management node. Before interacting with any network
variables, the management node verifies that the nviInUse has not changed. The
management node logs off by writing 0 to nviInUse.
During power up, an application restart, or return to on-line from off-line, the Excel
10 sets nviInUse to 65535 to indicate to the management node that it has returned
to on-line.

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table C3. Status Points (Left).

User Address

NvName

Engineering Units:
English (Metric) or
States plus Range

Field Name

Digital
State
or
Value
of
State

Default

AlarmNode

nvoAlarm

node

0 to 127

AlarmSubnet

nvoAlarm

subnet

1 to 255

AlarmType

nvoAlarm

type
0 to 255

NO_ALARM
INPUT_NV_FAILURE
NODE_DISABLED
SENSOR_FAILURE
rINPUT_NV_FAILURE
rNODE_DISABLED
rSENSOR_FAILURE
ALARM_NOTIFY_DISABLED

AlarmTypeLog0

nvoAlarmLog

type0

Refer to the AlarmType
enumerated list shown in the
Eng. Units/States column.

NO_ALARM

AlarmTypeLog1

nvoAlarmLog

type1

Refer to the AlarmType
enumerated list shown in the
Eng. Units/States column.

NO_ALARM

AlarmTypeLog2

nvoAlarmLog

type2

Refer to the AlarmType
enumerated list shown in the
Eng. Units/States column.

NO_ALARM

AlarmTypeLog3

nvoAlarmLog

type3

Refer to the AlarmType
enumerated list shown in the
Eng. Units/States column.

NO_ALARM

AlarmTypeLog4

nvoAlarmLog

type4

Refer to the AlarmType
enumerated list shown in the
Eng. Units/States column.

NO_ALARM

Errorbyte1

nvoError

error_bit(0)
Byte Offset = 0
Bit Offset = 0
ResSensor1Error(AI1)

FALSE
TRUE

0
1
2
3
129
130
131
255

0
1

NO_ALARM

FALSE

(continued)

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table C3. Status Points (Right).
Share (SH), Map (MA), Direct Access (DA)
E-Vision (EV): Calibrate (C), Monitor (M),
Parameter (P), Schematic (S)
Hardware Configuration (HW),
Manual Point (MN), Test (TS)
SH

Comments
AlarmNode: is the LonWorks node number (in domain entry 1 of the nodes domain
table) assigned to the node.
AlarmSubnet: is the LonWorks subnet number (in domain entry 1 of the nodes
domain table) to which the node is assigned.
AlarmType: is the alarm type being issued. When an alarm condition is no longer
TRUE, type is set to the sum of the alarm conditions numeric value and the
RETURN_TO_NORMAL numeric value. The type also is recorded in
AlarmTypeLog0 through AlarmTypeLog4. When a new alarm is detected, just the
corresponding numeric value for the alarm is reported. Refer to table 9 (Excel 10
Alarms) in the System Engineering Guide for all the error conditions that may be
reported.

AlarmTypeLog0 (0, 1, 2, 3, 129, 130, 131, 255)
A supervisory node may poll the AlarmTypeLog output for a short alarm history. The
last five alarm reports sent via nvoAlarm are reported via AlarmTypeLog. When
ALARM_NOTIFY_DISABLED is entered into the log, further alarms or return to
normals are not entered into the log, until alarm reporting is again enabled. If
nvoAlarm is bound and not being acknowledged, the last alarm report entered into
the AlarmTypeLog is the one that was not acknowledged.
See nvoAlarm and for related subjects.
type ( n ) specifies the alarm that was issued via nvoAlarm. See nvoAlarm for the
alarm types used in AlarmTypeLog. The newest alarm is reported in type( 0 ) and
the oldest is reported in type( 4 ). When a new entry is made to the log, the oldest
entry is lost.

AlarmTypeLog1:
Refer to the description for AlarmTypeLog0.

AlarmTypeLog2:
Refer to the description for AlarmTypeLog0.

AlarmTypeLog3:
Refer to the description for AlarmTypeLog0.

AlarmTypeLog4:
Refer to the description for AlarmTypeLog0.

ResSensor1Error(AI1): The nvoError is a polled output containing a list of the current
errors detected by the node. A search for error conditions in the node is made
periodically. A diagnostic tool may poll nvoError for all of the current errors. nvoError
uses one bit for each possible error condition. nvoError contains all the detected
current errors even though they may be suppressed for reporting by nvoAlarm.
There is a correspondence between the error conditions and alarm types. nvoError
includes sensor failure errors and input network variable failure detect errors. Any
sensor failure errors result in a SENSOR_FAILURE alarm. Failure to receive any
bound network variable periodically results in an INPUT_NV_FAILURE alarm.
nvoError tells which sensor(s) or network variable(s) have failed. See nvoAlarm,
AlarmTypeLog for related subjects.

(continued)

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table C3. Status Points (Left Continued).

User Address

NvName

Engineering Units:
English (Metric) or
States plus Range

Field Name

Digital
State
or
Value
of
State

Default

Errorbyte2

nvoError

error_bit(0)
Byte Offset = 0
Bit Offset = 1
ResSensor2Error(AI2)

FALSE
TRUE

0
1

FALSE

Errorbyte3

nvoError

error_bit(0)
Byte Offset = 0
Bit Offset = 2
ResSensor3Error(AI3)

FALSE
TRUE

0
1

FALSE

Errorbyte4

nvoError

error_bit(0)
Byte Offset = 0
Bit Offset = 3
ResSensor4Error(AI4)

FALSE
TRUE

0
1

FALSE

BugFixVer

nroPgmVer

BugVer

nroPgmVer

NodeType

RIO1

MajorVer

nroPgmVer

MajorVer

MinorVer

nroPgmVer

MinorVer

nroPgmVer

NodeType

nvoStatus

CommFailure

FALSE
TRUE

0
1

FALSE

nvoStatus

disabled

FALSE
TRUE

0
1

FALSE

nvoStatus

ElectricalFault

FALSE
TRUE

0
1

FALSE

nvoStatus

FailSelfTest

FALSE
TRUE

0
1

FALSE

nvoStatus

FeedbackFailure

FALSE
TRUE

0
1

FALSE

nvoStatus

InAlarm

FALSE
TRUE

0
1

FALSE

nvoStatus

InvalidId

FALSE
TRUE

0
1

FALSE

nvoStatus

InvalidRequest

FALSE
TRUE

0
1

FALSE

(continued)

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table C3. Status Points (Right Continued).
Share (SH), Map (MA), Direct Access (DA)
E-Vision (EV): Calibrate (C), Monitor (M),
Parameter (P), Schematic (S)
Hardware Configuration (HW),
Manual Point (MN), Test (TS)
SH

Comments

ResSensor2Error(AI2): Refer to the description of ResSensor1Error(AI1).

ResSensor3Error(AI3): Refer to the description of ResSensor1Error(AI1).

ResSensor4Error(AI4): Refer to the description of ResSensor1Error(AI1).

Software version.
A four byte ASCII string indicating the type of node (model).

Software version.

Software version.
The NodeType is a numeric identifier that is stored in EPROM that identifies the
Excel 10 node type. Whenever a new software version or upgrade is issued, this is
reflected in nroPgmVer which typically is read by a network management node to
identify the node type. The contents of nroPgmVer contain compatible model type
information and is fixed at the time when the node software is compiled.
CommFailure:
This field is not supported and is set to 0 (FALSE).
disabled: disabled reports 1 if nvoIO mode is set to DISABLED_MODE or
FACTORY_TEST mode. Otherwise disabled is set to 0.
ElectricalFault:
This field is not supported and is set to 0 (FALSE).
FailSelfTest:
This field is not supported and is set to 0 (FALSE).
FeedbackFailure:
This field is not supported and is set to 0 (FALSE).
InAlarm: If there are currently any active alarms reported by InAlarm, or InAlarm is
set to AlarmNotifyDisabled, then InAlarm is set to True, if not InAlarm is set to False.
InvalidId: If object_id is not a valid object, invalid_id is set to 1 (TRUE) otherwise it is
set to 0 (FALSE).
InvalidRequest: If object_request is not a valid request for the object addressed,
InvalidRequest is set to 1 (TRUE) otherwise it is set to 0 (FALSE).

(continued)

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table C3. Status Points (Left Continued).

User Address

NvName

Engineering Units:
English (Metric) or
States plus Range

Field Name

Digital
State
or
Value
of
State

Default

nvoStatus

InOverride

FALSE
TRUE

0
1

FALSE

nvoStatus

LockedOut

FALSE
TRUE

0
1

FALSE

nvoStatus

ManualControl

FALSE
TRUE

0
1

FALSE

nvoStatus

MechanicalFault

FALSE
TRUE

0
1

FALSE

nvoStatus

ObjectId

0 TO 65535

nvoStatus

OpenCircuit

FALSE
TRUE

0
1

FALSE

nvoStatus

OutOfLlimits

FALSE
TRUE

0
1

FALSE

nvoStatus

OutOfService

FALSE
TRUE

0
1

FALSE

nvoStatus

OverRange

FALSE
TRUE

0
1

FALSE

nvoStatus

SelfTestInProgress

FALSE
TRUE

0
1

FALSE

nvoStatus

UnableToMeasure

FALSE
TRUE

0
1

FALSE

nvoStatus

UnderRange

FALSE
TRUE

0
1

FALSE

74-2699

Comments
InOverride:
This field is not supported and is set to 0 (FALSE).
LockedOut:
This field is not supported and is set to 0 (FALSE).
ManualControl:
This field is not supported and is set to 0 (FALSE).
MechanicalFault:
This field is not supported and is set to 0 (FALSE).
ObjectId: is set to the current value of nviRequest.object_id
OpenCircuit:
This field is not supported and is set to 0 (FALSE).
OutOfLlimits:
This field is not supported and is set to 0 (FALSE).
OutOfService:
This field is not supported and is set to 0 (FALSE).
OverRange:
This field is not supported and is set to 0 (FALSE).
SelfTestInProgress:
This field is not supported and is set to 0 (FALSE).
UnableToMeasure:
This field is not supported and is set to 0 (FALSE).
UnderRange:
This field is not supported and is set to 0 (FALSE).

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table C4. Configuration Parameters (Left).

User Address

NvName

Field Name

Engineering Units:
English (Metric) or
States plus Range
0 to 255

Digital
State
or
Value
of
State

Default

nciApplVer

ApplicationType

nciDeviceName

DeviceName

nciApplVer

Time1Jan70

seconds

nciApplVer

VersionNumber

0 to 255

AILowLimit

nciEUConvrtRes

LowerLimitS7

degrees F -40 to 240
degrees C (-40 to 116)

AIOutputRHigh

nciEUConvrtRes

OutputResHighS7

degrees F -40 to 240
degrees C (-40 to 116)

AIOutputRLow

nciEUConvrtRes

OutputResLowS7

degrees F -40 to 240
degrees C (-40 to 116)

AIResHigh

nciEUConvrtRes

ResHigh

Ohms
10 to 150000

AIResLow

nciEUConvrtRes

ResLow

Ohms
10 to 150000

ASCII Blanks

(continued)

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table C4. Configuration Parameters (Right).
Share (SH), Map (MA), Direct Access (DA)
E-Vision (EV): Calibrate (C), Monitor (M),
Parameter (P), Schematic (S)
Hardware Configuration (HW),
Manual Point (MN), Test (TS)
SH

Comments
ApplicationType identifies the current application number of the Excel 10.
nciDeviceName is an 18 character field used to identify the node uniquely as one
object at the site or project. The contents of the nciDeviceName is maintained by a
management node. If nciDeviceName is all ASCII blanks, it is considered
unconfigured.
The time stamp of the last change to the Excel 10 application configuration. Time
meets the ANSI C time stamp requirement specifying the number of seconds
elapsed since midnight (0:00:00), January 1, 1970. It is represented in the Intel
Format.
VersionNumber identifies the version number of the Excel 10 application.

AILowLimit: This is the low limit value or the lowest value that will be displayed for
this sensor. This value must be between the AIOutputRLow and AIOutputRHigh and
lower than the value specified for AIUpperLimit.

AIOutputRHigh: This is the equivalent temperature degrees F (degrees C) value for
the resistance entered for AIResHigh. Using the resistance example for AIResHigh
of 48,000 ohms, you would enter the equivalent temperature of 45.0 degrees F (7.2
degrees C) for the AIOutputRHigh value.

AIOutputRLow: This is the equivalent temperature degrees F (degrees C) value for
the resistance entered for AIResLow. Using the resistance example for AIResLow of
11,520 ohms, you would enter the equivalent temperature of 99.0 degrees F (37.2
degrees C) for the AIOutputRLow value.

AIResHigh: This is the highest resistance value of the user specified range for a
custom resistive input as selected through E-Vision in the input Tab of the
Application selection screen. The user can select between a PT3000
(Custom_PT3000) or a 20 Kohm NTC (Custom_20 Kohm NTC) sensor. This value is
specified in ohms with LSB in 10 Ohms. This means that if your high resistance
value for a 20 Kohm NTC sensor was 48,000 ohms, 45.0 degrees F (7.2 degrees C),
the value that would be entered for AIResHigh would be 4800 (the resistance value
divided by ten).

AIResLow: This is the lowest resistance value of the user specified range for a
custom resistive input as selected through E-Vision in the input Tab of the
Application selection screen. The user can select between a PT3000
(Custom_PT3000) or a 20 Kohm NTC (Custom_20 Kohm NTC) sensor. This value is
specified in ohms with LSB in 10 Ohms. This means that if the low resistance value
for a 20 Kohm NTC sensor was 11,520 ohms, 99.0 degrees F (37.2 degrees C), the
value that would be entered for AIResLow would be 1152 (the resistance value
divided by ten).

(continued)

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table C4. Configuration Parameters (Left Continued).

User Address

NvName

Field Name

Engineering Units:
English (Metric) or
States plus Range

Digital
State
or
Value
of
State

Default

AIUpperLimit

nciEUConvrtRes

UpperLimitS7

degrees F -40 to 240
degrees C (-40 to 116)

DeltaC

nciDelta

deltacurrent

mA
0 to 256

DeltaCO2

nciDelta

deltaCO2

PPM 0 to 2000

DeltaH

nciDelta

deltahum

percent 0 to 163

DeltaP

nciDelta

deltapres

inw 0 to 32
kPa (0 to 7.97)

DeltaT1

nciDelta

deltatemp(0)

degrees F 0 to 256
degrees C (0 to 124)

DeltaT2

nciDelta

deltatemp(1)

degrees F 0 to 256
degrees C (0 to 124)

DeltaT3

nciDelta

deltatemp(2)

degrees F 0 to 256
degrees C (0 to 124)

DeltaT4

nciDelta

deltatemp(3)

degrees F 0 to 256
degrees C (0 to 124)

DeltaV

nciDelta

deltaVolt

0 to 10.5 volts

DO1FlSpeed

nciFloatConfig

DO0

seconds
0 to 900

DO2FlSpeed

nciFloatConfig

DO1

seconds
0 to 900

DO3FlSpeed

nciFloatConfig

DO2

seconds
0 to 900

DO4FlSpeed

nciFloatConfig

DO3

seconds
0 to 900

(continued)

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table C4. Configuration Parameters (Right Continued).
Share (SH), Map (MA), Direct Access (DA)
E-Vision (EV): Calibrate (C), Monitor (M),
Parameter (P), Schematic (S)
Hardware Configuration (HW),
Manual Point (MN), Test (TS)
SH

Comments

AIUpperLimit: This is the high limit value or the highest value that will be displayed
for this sensor. This value must be between the AIOutputRLow and AIOutputRHigh
and higher than the value specified for AILowLimit.

DeltaC: The default value of delta for all RIO sensor types is set to zero. With this
default value, the RIO will send the sensor values at the fastest rate of 2 seconds
update rate. However, if the user desires to reduce the network traffic or not receive
the noisy sensor values, a delta value can be specified. This value will force the RIO
to transmit the sensor value when the current value exceeds the last sent value by
the delta amount. RIO will also send the sensor value whenever the time of update
exceeds nciRioSendT. RIO will send the sensor value at the rate of nciRioSendT
regardless of delta change.

DeltaCO2: Refer to the description for DeltaC.

DeltaH: Refer to the description for DeltaC.

DeltaP: Refer to the description for DeltaC.

DeltaT1: Refer to the description for DeltaC.

DeltaT2: Refer to the description for DeltaC.

DeltaT3: Refer to the description for DeltaC.

DeltaT4: Refer to the description for DeltaC.

DeltaV: Refer to the description for DeltaC.

DO1FlSpeed is how long it takes for the actuator motor to move one cycle of travel
from closed to open. This value would be required if DO1Type were configured to
either Float_Open or Float_Close.

DO2FlSpeed is how long it takes for the actuator motor to move one cycle of travel
from closed to open. This value would be required if DO2Type were configured to
either Float_Open or Float_Close.

DO3FlSpeed is how long it takes for the actuator motor to move one cycle of travel
from closed to open. This value would be required if DO3Type were configured to
either Float_Open or Float_Close.

DO4FlSpeed is how long it takes for the actuator motor to move one cycle of travel
from closed to open. This value would be required if DO4Type were configured to
either Float_Open or Float_Close.

(continued)

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table C4. Configuration Parameters (Left Continued).

User Address

NvName

Engineering Units:
English (Metric) or
States plus Range

Field Name

Digital
State
or
Value
of
State

Default

DO5FlSpeed

nciFloatConfig

DO4

seconds
0 to 900

DO6FlSpeed

nciFloatConfig

DO5

seconds
0 to 900

DO7FlSpeed

nciFloatConfig

DO6

seconds
0 to 900

DO8FlSpeed

nciFloatConfig

DO7

seconds
0 to 900

DO1PWMPeriod

nciPWMConfig1

DO0.si_period_pwm

seconds
0.0 to 3000

25.6

DO1PWMZero

nciPWMConfig1

DO0.si_pnct_time

seconds 0.0 to 3000

0.1

DO1PWMFull

nciPWMConfig1

DO0.si_delta_time

seconds 0.0 to 3000

25.5

DO2PWMPeriod

nciPWMConfig1

DO1.si_period_pwm

seconds 0.0 to 3000

25.6

DO2PWMZero

nciPWMConfig1

DO1.si_pnct_time

seconds 0.0 to 3000

0.1

DO2PWMFull

nciPWMConfig1

DO1.si_delta_time

seconds 0.0 to 3000

25.5

DO3PWMPeriod

nciPWMConfig1

DO2.si_period_pwm

seconds 0.0 to 3000

25.6

DO3PWMZero

nciPWMConfig1

DO2.si_pnct_time

seconds 0.0 to 3000

0.1

DO3PWMFull

nciPWMConfig1

DO2.si_delta_time

seconds 0.0 to 3000

25.5

DO4PWMPeriod

nciPWMConfig1

DO3.si_period_pwm

seconds 0.0 to 3000

25.6

DO4PWMZero

nciPWMConfig1

DO3.si_pnct_time

seconds 0.0 to 3000

0.1

DO4PWMFull

nciPWMConfig1

DO3.si_delta_time

seconds 0.0 to 3000

25.5

DO5PWMPeriod

nciPWMConfig2

DO4.si_period_pwm

seconds 0.0 to 3000

25.6

DO5PWMZero

nciPWMConfig2

DO4.si_pnct_time

seconds 0.0 to 3000

0.1

DO5PWMFull

nciPWMConfig2

DO4.si_delta_time

seconds 0.0 to 3000

25.5

(continued)

74-2699

Comments

DO5FlSpeed is how long it takes for the actuator motor to move one cycle of travel
from closed to open. This value would be required if DO5Type were configured to
either Float_Open or Float_Close.

DO6FlSpeed is how long it takes for the actuator motor to move one cycle of travel
from closed to open. This value would be required if DO6Type were configured to
either Float_Open or Float_Close.

DO7FlSpeed is how long it takes for the actuator motor to move one cycle of travel
from closed to open. This value would be required if DO7Type were configured to
either Float_Open or Float_Close.

DO8FlSpeed is how long it takes for the actuator motor to move one cycle of travel
from closed to open. This value would be required if DO8Type were configured to
either Float_Open or Float_Close.

DO1PWMPeriod is a intermittent voltage pulse whose width varies in proportion to
the desired actuator position. The PWM signal has three parameters that have to be
configured in order for the output to function correctly. The period, is the overall pulse
lenegth in seconds. The percent_time (signal presence) is the zero percent position
of the actuator output. The actuator requires this signal (pulse width) sent once every
period, so that it knows that it is still connected to the controller and where the zero
position starts. The variable width (delta_time) portion is incremented in proportion to
the signal percentage. There are 255 increments available (for example 0.1 second).
Thus, the pulse width will be the minimum width (percent_time) plus the number of
increments (delta_time/ 255). The smallest time that can be used with the RIO
controller is 0.1 second. An example stroke at mid position is: 0.1 second
(percent_time) + 128 x 0.1 (255/0.5 - 50 percent position) = 12.9 seconds. The period
would equal the percent_time plus the delta_time (for example 0.1 seconds) + 255 x
0.1 seconds = 25.6 seconds.

DO1PWMZero: Refer to the description for DO1PWMPeriod.

DO1PWMFull: Refer to the description for DO1PWMPeriod.

DO2PWMPeriod: Refer to the description for DO1PWMPeriod.

DO2PWMZero: Refer to the description for DO1PWMPeriod.

DO2PWMFull: Refer to the description for DO1PWMPeriod.

DO3PWMPeriod: Refer to the description for DO1PWMPeriod.

DO3PWMZero: Refer to the description for DO1PWMPeriod.

DO3PWMFull: Refer to the description for DO1PWMPeriod.

DO4PWMPeriod: Refer to the description for DO1PWMPeriod.

DO4PWMZero: Refer to the description for DO1PWMPeriod.

DO4PWMFull: Refer to the description for DO1PWMPeriod.

DO5PWMPeriod: Refer to the description for DO1PWMPeriod.

DO5PWMZero: Refer to the description for DO1PWMPeriod.

DO5PWMFull: Refer to the description for DO1PWMPeriod.

(continued)

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table C4. Configuration Parameters (Left Continued).

User Address
DO6PWMPeriod

NvName
nciPWMConfig2

Engineering Units:
English (Metric) or
States plus Range

Field Name
DO5.si_period_pwm

Digital
State
or
Value
of
State

seconds 0.0 to 3000

Default
25.6

DO6PWMZero

nciPWMConfig2

DO5.si_pnct_time

seconds 0.0 to 3000

0.1

DO6PWMFull

nciPWMConfig2

DO5.si_delta_time

seconds 0.0 to 3000

25.6

DO7PWMPeriod

nciPWMConfig2

DO6.si_period_pwm

seconds 0.0 to 3000

25.6

DO7PWMZero

nciPWMConfig2

DO6.si_pnct_time

seconds 0.0 to 3000

0.1

DO7PWMFull

nciPWMConfig2

DO6.si_delta_time

seconds 0.0 to 3000

25.5

DO8PWMPeriod

nciPWMConfig2

DO7.si_period_pwm

seconds 0.0 to 3000

25.6

DO8PWMZero

nciPWMConfig2

DO7.si_pnct_time

seconds 0.0 to 3000

0.1

DO8PWMFull

nciPWMConfig2

DO7.si_delta_time

seconds 0.0 to 3000

25.5

Table C4. Configuration Parameters (Right Continued).
Share (SH), Map (MA), Direct Access (DA)
E-Vision (EV): Calibrate (C), Monitor (M),
Parameter (P), Schematic (S)
Hardware Configuration (HW),
Manual Point (MN), Test (TS)
SH

Comments

DO6PWMPeriod: Refer to the description for DO1PWMPeriod.

DO6PWMZero: Refer to the description for DO1PWMPeriod.

DO6PWMFull: Refer to the description for DO1PWMPeriod.

DO7PWMPeriod: Refer to the description for DO1PWMPeriod.

DO7PWMZero: Refer to the description for DO1PWMPeriod.

DO7PWMFull: Refer to the description for DO1PWMPeriod.

DO8PWMPeriod: Refer to the description for DO1PWMPeriod.

DO8PWMZero: Refer to the description for DO1PWMPeriod.

DO8PWMFull: Refer to the description for DO1PWMPeriod.

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table C5. Direct Access And Special Points (Left).

User Address
DestManMode

NvName

Engineering Units:
English (Metric) or
States plus Range

Field Name

nviManualMode

MODE_ENABLE
MODE_DISABLE
MODE_MANUAL
SUPPRESS_ALARMS
UNSUPPRESS_ALARMS

Digital
State
or
Value
of
State
0
1
2
3
4

Default
MODE_ENABLE

Table C5. Direct Access And Special Points (Right).
Share (SH), Map (MA), Direct Access (DA)
E-Vision (EV): Calibrate (C), Monitor (M),
Parameter (P), Schematic (S)
Hardware Configuration (HW),
Manual Point (MN), Test (TS)
SH

MA
X

DA
X

EV
MP

Comments
DestManMode: is an input which is used to manually set the physical outputs.
DestManMode remains unchanged until another mode has been commanded or an
application restart has been performed. The valid enumerated values are:
MODE_ENABLE enables the node so that the RIO controls the physical outputs as
the normal mode. MODE_ENABLE is the default state after power is restored or an
application restart occurs. If the mode was MANUAL and DestManMode is set to
MODE_ENABLE, the node then goes through application restart.
MODE_DISABLED sets the node into the DISABLED mode. The alarm
NODE_DISABLED is initiated, 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. The alarm
NODE_DISABLED is initiated, and the physical outputs are controlled manually as
commanded by DestManMode. The nodes configuration variables and
DestManMode 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 AlarmType to be set to ALARM_NOTIFY_DISABLED,
and AlarmTypeLog to no longer record alarms. If alarms are suppressed,
UNSUPPRESS_ALARMS causes AlarmType and AlarmTypeLog to be returned to
reporting alarms. See nvoAlarm for more details. All unspecified values are the same
as MODE_ENABLE.

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

Appendix D. Q7750A Excel 10
Zone Manager Point Estimating Guide.
Memory size approximation is shown below: (all sizes in bytes)
When memory size is less than 110,000 bytes, the size is OK.
When memory size is between 110,000 and 128,000 bytes, the application may be too large. The user must expect to reduce
the application complexity, reduce the number of attached Excel 10s or distribute the Excel 10s over more than one Zone
Manager.
When memory size is greater than 128,000, the size is too large. The application size must be reduced as described above.

Approximate Memory Size Estimating Procedure.
1. Determine the number of points per controller required at the Central (for example, XBS).
NOTE: All remaining points that are not mapped can be accessed through the Direct Access feature.
2. Calculate the number of Excel 10 Zone Manager program points that are used in control logic and in the switching table.
3. Estimate the program complexity of the Zone Manager (one of three levels).
a. No time programs, control logic, or switching tables.
b. 10K of control logic (one time program, five switching tables, and five control loops).
c. 20K of control logic (multiple time programs, ten switching tables, and ten control loops).
Use Fig. D-1 to determine the number of Excel 10s that can be connected to the Zone Manager.
NOTE: More than 60 Excel 10s requires a Router.
4. Repeat for each Q7750A Excel 10 Zone Manager in a project.
(A) NO TIME PROGRAM,
NO CONTROL LOOPS,
NO SWITCHING TABLES.

920
900

900

895

(B) 10K CONTROL PROGRAM
(I.E., 1 TIME PROGRAM,
5 CONTROL LOOPS,
5 SWITCHING TABLES.)

800

NUMBER OF
C-BUS POINTS
(EXCEL 10
MAPPED
POINTS
PLUS ZONE
MANAGER
POINTS)

800

765
740
700

700
(C) 20K CONTROL PROGRAM
(I.E., MULTIPLE TIME PROGRAMS,
10 CONTROL LOOPS,
10 SWITCHING TABLES.)

NUMBER OF
C-BUS POINTS
(EXCEL 10
MAPPED
POINTS
PLUS ZONE
MANAGER
POINTS)

610
600

600

585
20
(OR LESS)

120

(ADD ROUTER)
M8729

NUMBER OF EXCEL 10s

Fig. D-1. Point capacity estimate for Zone Manager.
The exact equation for calculating memory size follows:
Memory size = 21,780
+ 4096 (in case of a time program).
+ CARE Control Program.
+ 14 x time points x Excel 10 units.
+ 50 x Excel 10 units.
+ map complexity x Excel 10 units x mapped points.
+ 57 x C-Bus points.
+ 7488 x Excel 10 types.
Where:
Time points = number of switch points in time program per Excel 10.
Excel 10 units = number of attached Excel 10s.
C-Bus points = including mapped points and others; for example, remote points.
Mapped points = number of mapped points per Excel 10,
including One-to-Many and Many-to-One
mechanism.
Excel 10 types = number of different Excel 10 types (currently three)
Map complexity =
20 = using One-to-Many and not using
points with read/write.
30 = average.
45 = many points with read/write ability.
71

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EXCEL 10 W7761A INPUT/OUTPUT DEVICE

Appendix E. Sensor Data for Calibration.
Resistance Sensors.
Sensor Type:
C7100A1015, (and C7170A1002).
Sensor Use:
Discharge air, Outdoor air.
Table E-1 lists the points for Sensor Resistance versus Temperature. Fig. E-1 shows the graph of these points.
Table E-1. Sensor Resistance Versus Temperature.
°F (°C)

Resistance Ohms

-40 (-40)

2916.08

-30 (-34.5)

2964.68

-20 (-28.9)

3013.28

-10 (-23.3)

3061.88

0 (-17.8)

3110.48

10 (-12.2)

3159.08

20 (-6.7)

3207.68

30 (-1.1)

3256.28

40 (4.4)

3304.88

50 (10)

3353.48

60 (15.6)

3402.08

70 (21.1)

3450.68

80 (26.7)

3499.28

90 (32.2)

3547.88

100 (37.8)

3596.48

110 (43.4)

3645.08

120 (49)

3693.68

SENSOR RESISTANCE VERSUS TEMPERATURE

OHMS

3750
3700
3650
3600
3550
3500
3450
3400
3350
3300
3250
3200
3150
3100
3050
3000
2950
2900
°F -40 -30 -20 -10
°C

10 20

30 40

50 60 70

80 90 100 110 120

-34.5
-23.3
-12.2
-1.1
10
21.1
32.2
43.4
-40
-28.9
-17.8
-6.7
4.4
15.6
26.7
37.8
49
M11959

Fig. E-1. Graph of Sensor Resistance versus Temperature.
Sensor Type:
C7031B1033, C7031C1031, C7031D1062, C7031F1018, C7031J1050, C7031K1017.
Sensor Use:
Return Air, Discharge Air Temperature.
72

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Table E-2 lists the points for Sensor Resistance versus Temperature. Fig. E-2 shows the graph of these points.
Table E-2. Sensor Resistance Versus Temperature.
°F (°C)

Resistance Ohms

30 (-1.1)

1956.79

35 (1.7)

1935.79

40 (4.4)

1914.79

45 (7.2)

1893.79

50 (10)

1872.79

55 (12.8)

1851.79

60 (15.6)

1830.79

65 (18.3)

1809.79

70 (21.1)

1788.79

75 (23.9)

1767.79

80 (26.7)

1746.79

85 (29.4)

1725.79

90 (32.2)

1704.78

95 (35)

1683.78

100 (37.8)

1662.78

105 (40.6)

1641.78

110 (43.3)

1620.78

115 (46.1)

1599.78

120 (48.9)

1578.78
SENSOR RESISTANCE VERSUS TEMPERATURE
2000
1950
1900
OHMS

1850
1800
1750
1700
1650
1600
1550
1500
°F 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
°C

1.7
-1.1

7.2
4.4

12.8
18.3
23.9
29.4
35
40.6
46.1
43.3 48.9
15.6
21.1
26.7
32.2
37.8
M11960

Fig. E-2. Graph of Sensor Resistance versus Temperature.
Sensor Type:
T7770A,B,C,D sensor—(current feature that can be used with the RIO Device) and C7770A.
Sensor Use:
Space Temperature and Discharge/Return Air Temperature.
Table E-3 lists the points for Sensor Resistance versus Temperature. Fig. E-3 shows the graph of these points.
Table E-3 Sensor Resistance Versus Temperature.
°F (°C)

Resistance Ohms

40 (4.4)

9961.09

45 (7.2)

9700.90

50 (10)

9440.72

55 (12.8)

9180.53

60 (15.6)

8920.35
73

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

65 (18.3)

8660.16

70 (21.1)

8399.98

75 (23.9)

8139.79

80 (26.7)

7879.61

85 (29.4)

7619.42

90 (32.2)

7359.24

95 (35)

7099.06

100 (37.8)

6838.87
80K

RESISTANCE (OHMS)

70K
60K
50K
40K
30K
20K OHM AT
77oF (25oC)

20K
10K

30
0

50
10

70
20

90
30

TEMPERATURE (DEGREES)

100

110 oF
oC
40
M5874A

Fig. E-3. Graph of Sensor Resistance versus Temperature.

Voltage/Current Sensors.
Sensor Type:
C7600B1000 (Decorative Wall Mount) and C7600C1018 2 to 10V.
Sensor Use:
Humidity.
Table E-4 lists the points for Sensor Voltage versus Humidity. Fig. E-4 shows the graph of these points.
Table E-4. Sensor Voltage Versus Humidity.
Humidity Percentage

Sensor Voltage

2.67

3.08

3.48

3.88

4.28

4.68

5.08

5.48

5.88

6.28

6.69

7.09

7.49

7.89

8.29
74

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

8.69

9.09
SENSOR VOLTAGE VERSUS HUMIDITY PERCENTAGE

VOLTS

10.00
9.50
9.00
8.50
8.00
7.50
7.00
6.50
6.00
5.50
5.00
4.50
4.00
3.50
3.00
2.50
10 15

25 30

40 45 50 55
PERCENTAGE

85 90
M11610

Fig. E-4. Graph of Sensor Voltage versus Humidity.
Sensor Type:
C7600C1008 (4 to 20 mA).
Sensor Use:
Humidity.
Table E-5 lists the points for Sensor Current versus Humidity. Fig. E-5 shows the graph of these points.
Table E-5. Sensor Current Versus Humidity.
Humidity Percentage

Sensor Current

5.6

6.4

7.2

8.0

8.8

9.6

10.4

11.2

12.0

12.8

13.6

14.4

15.2

16.0

16.8

17.6

18.4

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
20

RH (%)

I (mA)

10
20
30
40
50
60
70
80
90

5.6
7.2
8.8
10.4
12.0
13.6
15.2
16.8
18.4

CURRENT IN MILLIAMPS

18
16
14
12
10
8
6
4
0

90 100

HUMIDITY IN PERCENT RELATIVE HUMIDITY

M3131B

Fig. 5. C7600C output current vs. humidity.
Sensor Type:
C7400A1004.
Sensor Use:
Enthalpy.
Table E-6 lists the points for Sensor Current versus Enthalpy (volts). Fig. E-6 shows the graph of these points.
Table E-6. Sensor Current Versus Enthalpy (Volts).
Enthalpy (volts)

Sensor Current (mA)

1.25

1.49

1.74

1.99

2.24

2.49

2.74

2.99

3.24

3.49

3.74

3.98

4.23

4.48

4.73

4.98

ENTHALPY (VOLTS)

SENSOR CURRENT VERSUS ENTHALPY (VOLTS)
5.00
4.75
4.50
4.25
4.00
3.75
3.50
3.25
3.00
2.75
2.50
2.25
2.00
1.75
1.50
1.25
1.00
4

11 12 13 14
(MA)

M11607

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

Fig. E-6. Graph of Sensor Current versus Enthalpy (volts).
See Fig. E-7 for a partial psychometric chart for the a C7400A Solid State Enthalpy Sensor.

85
90
95 100 105 110
(29) (32) (35) (38) (41) (43)

80
(27)

(%
)
ITY

HU
RE
LA
TIV
E

65
(18)

10
0
90

70
(21)

LP
Y—
28 BT
U

PE
R

PO
U

75
(24)

EN
TH
A

MID

AI
R

73 (23)
70 (21)
67 (19)
63 (17)

34 D D

A
B
C
D

CONTROL CONTROL POINT
CURVE
APPROX. °F (°C)
AT 50% RH

60
(16)

16
14

50
(10)

45
(7)

55
(13) B

40
(4)

35
(2)

1
B A
D C

35
(2)

40
(4)

45
(7)

50
(10)

55
60
65
70
75
80
85
90
95 100 105 110
(13) (16) (18) (21) (24) (27) (29) (32) (35) (38) (41) (43)

APPROXIMATE DRY BULB TEMPERATURE—°F (°C)
1

M11160

HIGH LIMIT CURVE FOR W6210D,W7210D.

Fig. E-7. Partial psychometric chart for a C7400A Solid State Enthalpy Sensor.
See Fig. E-8 for a C7400A Solid State Enthalpy Sensor output current versus relative humidity.
C7400A OUTPUT CURRENT

100
90

70
A
4m
A
6m
A
8m
mA
10
mA
12
mA
14
mA
16
mA
18
mA
20

PERCENT RH

60
50

D = 17 MA
C = 15.5 MA
B = 13.5 MA
A = 11 MA

40
30
20
10
40
(4)

50
(10)

60
(16)

D C

B
70
(21)

A
80
(27)

TEMPERATURE °F (°C)

90
(32)

100
(38)
M11605

Fig. E-8. C7400A Solid State Enthalpy Sensor output current vs. relative humidity.
77

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE
Sensor Type:
T7242 or equivalent.
Sensor Use:
CO2 concentration.
Table E-9 lists the points for Sensor Voltage versus CO2 concentration. Fig. E-9 shows the graph of these points.
Table E-9. Sensor Voltage Versus CO2 Concentration.
CO2 Concentration PPM

Sensor Voltage

0.00

100

0.50

200

1.00

300

1.50

400

2.00

500

2.50

600

3.00

700

3.50

800

4.00

900

4.50

1000

5.00

1100

5.50

1200

6.00

1300

6.50

1400

7.00

1500

7.50

1600

8.00

1700

8.50

1800

9.00

1900

9.50

2000

10.00
SENSOR VOLTAGE VERSUS CO2 CONCENTRATION
10
9
8
VOLTS

7
6
5
4
3
2
1
0

100
300
500
700
900 1100 1300 1500 1700 1900
200
400
600
800 1000 1200 1400 1600 1800 2000
M11611
PPM

Fig. E-9. Graph of Sensor Voltage versus CO2 concentration.
Sensor Type:
Third party (2 to 20V).
Sensor Use:
Monitor voltage.
Table E-10 lists the points for Sensor Voltage versus input Voltage to A/D. Fig. E-10 shows the graph of these points.
Table E-10. Sensor Voltage Versus Input Voltage To A/D.
78

74-2699

EXCEL 10 W7761A INPUT/OUTPUT DEVICE

Voltage to A/D

Sensor Voltage

0.00

0.50

0.25

1.00

0.50

1.50

0.75

2.00

1.00

2.50

1.25

3.00

1.50

3.50

1.75

4.00

2.00

4.50

2.25

5.00

2.50

5.50

2.75

6.00

3.00

6.50

3.25

7.00

3.50

7.50

3.75

8.00

4.00

8.50

4.25

9.00

4.50

9.50

4.75

10.00

5.00
SENSOR VOLTAGE VERSUS INPUT VOLTAGE TO A/D
5.00
4.50
4.00
A/D VOLTS

3.50
3.00
2.50
2.00
1.50
1.00
0.50
0

100

200

300

400

600
500
VOLTS

700

800

900

1000

M11612

Fig. E-10. Graph of Sensor Voltage versus input Voltage to A/D.
Sensor Type:
Third party.
Sensor Use:
Sensor Voltage (Vdc)/Pressure Inw (kPa) 2 to 10V, 0 to 5 inw (0 to 1.25 kPa).
Table E-11 lists the points for Sensor Voltage (Vdc) versus Pressure (Inw). Fig. E-11 shows the graph of these points.
Table E-11. Sensor Voltage (Vdc) Versus Pressure (Inw).
Pressure Inw (kPa)

Sensor Voltage (Vdc)

0.00 (0.00)

2.00

0.50.(0.13)

2.80

1.00 (0.25)

3.60

1.50 (0.37)

4.40

2.00 (0.5)

5.20

2.50 (0.62)

6.00
79

74-2699

3.00 (0.75)

6.80

3.50 (0.87)

7.60

4.00 (1.00)

8.40

4.50 (1.12)

9.20

5.00 (1.25)

10.00
SENSOR VOLTAGE VERSUS PRESSURE
10.00
9.00
8.00
VOLTS (VDC)

7.00
6.00
5.00
4.00
3.00
2.00
Inw 0
kPa 0

0.50
0.13

1.00
0.25

1.50
0.37

2.00
0.5

2.50
0.62

3.00
0.75

3.50
0.87

4.00
1.0

4.50
1.12

5.00
1.25

M11963

Fig. E-11. Graph of Sensor Voltage (Vdc) versus Pressure (Inw).

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Source Exif Data:
File Type : PDF
File Type Extension : pdf
MIME Type : application/pdf
PDF Version : 1.2
Linearized : Yes
Create Date : 1998:11:10 16:31:03
Producer : Acrobat Distiller 3.0 for Windows
Title : W7761A
Subject : Modul oddalonych we / wy, XL10, system
Author : Honeywell
Keywords : sterownik, Excel 10, oddalone, opis systemu
Modify Date : 1999:05:12 12:28:04
Page Count : 80

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Honeywell W7761A Users Manual

W7761A to the manual 045b5723-ded5-4957-9473-7bd010c1b4a2

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