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Excel 15 Building Manager.Part number: W7760A2011

Supervisory Interface Devices
Excel 15 Building Manager
Date Last Saved: 9/28/2004 1:33:08 PM

Product Name(s): Excel 15 Building Manager.Part number: W7760A2011
Product Description: The Excel 15 W7760A Building Manager is part of the Light Commercial Building Systems (LCBS) product line. It can be used to monitor and control Honeywell HVAC equipment in a distributed network. It performs energy management, scheduling, trending, and alarm handling functions. It can also perform PID control using on-board I/O and/or remote I/O devices.
Product Application(s): Each Excel 15 can support up to twenty devices, and up to four Excel 15's can coexist on a single network. The Excel 15 can be used with the following devices: Excel 15 Command Display (S7760A Excel 10 Constant Volume AHU controller (W7750A,B,C) Excel 10 Unit Ventilator Controller (W7753A) Excel 10 Remote Input/Output device (W7761A) Wall Modules (T77770A,D) Commercial Thermostat/Communicating Subbase (T7300F/Q7300H Series 2000) Serial Lontalk Adapter (SLTA) (Q7752A,B) Excel 10 FTT Repeater (Q7740A,B)
Point Quantity Characteristics
Analog Input (AI): N.A. N.A.
Digital Input (DI): N.A. N.A.
Universal Input (AI or DI): N.A. N.A.
Analog Output (AO): N.A. N.A.
Digital Output (DO): N.A. N.A.
Universal Output (UO): N.A. N.A.
Other: N.A. N.A.
A/D Converter Resolution
D/A Converter Resolution
HOA switches provided on each output?
Note: These are also available as an add-on from 3rd party vendors.
Indicating status LED on each output?
Integral Flow Sensor? N.A.
Integral Damper Actuator? N.A.
Can controller accept occupant override from thermostat? N.A.
Can controller accept occupancy sensor input? N.A.
Expander Boards N.A.
Network Ports, Protocol(s), and Speed(s) Supported
(Note: See 'Architecture' for network details)
LonTalk port to Honeywell E-Bus @ 78 Kbps
External Communication Ports, Speeds and Access Devices E-Bus network access jack for connection of laptop/PC to Excel 15 using serial LonTalk adapter (SLTA)
Additional Information (Optional) Modem interface possible through Comm port
Network Accessing Capabilities via Controller
Controller Access Devices
Zone-Based Interface Access N.A.
Zone Interface Hardware
*Note: This section covers the capabilities for accessing the controller or other parts of the network from the controller (i.e. 'bottom-up').
Standard access functionality is covered in the Architecture and Software sections.
**Does NOT include front-end OI functions. See vendor for specific functions available.
Clock Type
Powered, battery-backed
Battery powered
Powered, no battery backing
Other powered with 60 hour capacitor back-up
Clock Synchronization Real-time clock runs on either 50/60 Hz or it's internal crystal. The RTC tracks time of day, day of week, month, and year (including leap year) and synchronizes the time/date for all other network devices. Daylight savings time can be enabled/disabled.
Volatile Memory (RAM) Capacity 3072 bytes - for trend data50 events - for alarms
Volatile Memory (RAM) Uses
RAM use unrestricted
RAM use restricted as shown below
Information Not Provided
Program Execution / Calculation storage
Data / Trends / Alarms storage
Configuration / Parameter storage
Control Programming storage
Is Volatile Memory Supported By Battery? 6-hour capacitor is standard
Lithium battery is optional
Battery Type(s) Optional - lithium
Battery Life Information not provided
Backup Battery Operating Time
Non-Volatile Memory Capacity (EEPROM/Flash)* EPROM for operating system and application program.
Non-Volatile Memory Uses
Data / Trends / Alarms / Calculation Storage
Configuration / Parameter Storage
Control Programming Storage
Controller Operating System
Additional Information
* Items in NV memory are not lost upon power or battery failure. Other types of NV memory such as EPROM, NOVROM, etc. do not directly impact system performance.
Can trend data be stored in this controller? Yes
How many total trend values can be stored? Trending of up to 16 inputs with a maximum trend sample space of 3072 bytes. Each trend point includes: input point, sampling interval, type of trend (one-shot, periodic, delta, or continuous), and start/stop date/time. A runtime log is can also be maintained for up to 15 digital inputs or outputs.
What is the controllers role in trending? Information not provided
Can controller be programmed to 'push' data to archive or are trends 'pulled' from controller?
When full, does controller automatically send up trend data, overwrite data, or stop logging data? Information not provided
Programming Method(s) N.A.
Resident vs Non-Resident Program Execution N.A.
Resident Energy Management
Specific Pre-Programmed Algorithms Available
Additional Programming Functions N.A.
DDC Loops (P, PI, PID) N.A.
Automatic PID Tuning Feature N.A.
Automatical-Dial Alarm Support N.A.
Does controller perform multiple retries and buffer/store alarm until connection is made? N.A.
Are multiple destinations possible? N.A.
Upon controller power loss or hardware failure:
Are network communications affected? N.A.
Is loss recognized on/by the network and alarm reported? N.A.
DO and AO response?
Volatile memory functions?
Upon restoration of power does the controller:
Auto-reboot without operator intervention? N.A.
Automatically reset/synchronize the clock? N.A.
Update all monitored functions? N.A.
Generate an alarm if backup battery is dead? N.A.
Upon network or communications failure does controller:
Continue to operate standalone? N.A.
Operate with last global settings or user-specified value? N.A.
Do broken network segments continue to communicate within the remaining segment?
(Note: May depend on proper termination of segments for higher speed networks.)
Does network automatically reconfigure upon restoration? N.A.
Does network store 'loss of communications' alarm with time of event? N.A.
Additional Information (optional) N.A.
Self Test Diagnostics
Does controller have internal self-test diagnostics to check:
Processor failure? N.A.
Internal hardware failure? N.A.
Open/shortened sensor? N.A.
Others? N.A.
Control Enclosure N.A.
Power Supply Required
Voltage 20-30 Vac, 50/60 Hz
VA 20 VA
Surge Protection No
Underwriters Laboratories UL916 for Energy Management computing devices (Class II device)
FCC Part 15, Sub-Part J, Class A
CE Level A
LonMark Certified
No - but LonWorks compatible
Information not provided
BACnet (BTL) Certified
Not submitted for testing
Information not provided

Programming Method(s)

(See also 'Software' Form)

Programmed using template-based Excel LonSpec software.


(See also 'Software' Form)

8 different schedules (including holidays) can be defined with up to six occupied/unoccupied periods per schedule.

Energy Management

SI-resident energy management functions/algorithms calculated and performed by this SI. One or more of these choices may be selected. 'No' indicates that it is not available.

Energy management algorithms for this controller can be custom programmed.
Pre-programmed/built-in algorithms available, and are fully editable using custom programming.
Pre-programmed/built-in with limited editing via template-based programming.
SI is not typically used for energy management functions

Specific, pre-programmed algorithms available.

'No' indicates that it is not available.

None (custom programming only)
None (not applicable)
Optimal Start/Optimal Stop
Peak Demand Limiting/Load Shedding
Additional Energy Management functions resident at individual controllers
Hardware I/O Points The Excel 15 has:
8 AI's (0-10 Vdc, 0-20 mA, PT3000, or 20K NTC)

2 AO's (4-20 mA)

4 DI's (On/off, maintained or momentary counter or pulse meter)

8 DO's (24 VAC triacs).

21 Vdc sensor power supply (70mA).
Additional SI Functions Information not provided

Automatic-Dial Alarm Support

(See also 'Software' Form)

Available from controller
Does SI perform multiple retries and buffer/store alarm until connection is made? Information not provided
Are multiple destinations possible? OWS Only
Upon SI power loss or hardware failure:
Is loss recognized on/by the network and alarm reported? No, but unit has built-in feature whereby it can dial out (up to 3 phone numbers) on periodic basis to indicate normal operation.
Upon restoration of power does the SI:
Auto-reboot without operator intervention? Information not provided
Automatically reset/synchronize its clock? Information not provided
Automatically reset/synchronize its secondary network? Information not provided
Update all monitored functions? Information not provided
Generate an alarm if backup battery is dead? No
Control Enclosure Subbase and snap-on cover/electronics