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Distech Controls - Easycontrols  


Secondary Control Units
Date Last Saved: 5/27/2005 8:43:06 AM

Product Name(s): EC-ACC
Product Description: The Easycontrols EC-ACC controller is a microprocessor-based two-door access controller designed to control access applications. The EC-ACC controller uses the LONWORKS communication protocol and has hardware inputs and outputs for all the devices at an access point necessary to provide stand-alone and networked access control functionality.
Product Application(s): The EC-ACC controls and supervises directly–attached end devices for two local access points including: readers/keypads, readers’ visual indicators and audible buzzers, electric door locks, door position sensors, request to exit sensors, passage sensors, and an enclosure tamper sensor. Multiple controllers can be connected together to create a network of hundreds of doors.
Point Quantity Characteristics
Analog Input (AI): N/A
Digital Input (DI): 4 2x Door Sensor
2x Request-To-Exit
N/C or N/O - configurable
Universal Input (AI or DI): N/A
Analog Output (AO): N/A
Digital Output (DO): 2 2x Door strike control
N/C or N/O 2amp relay contacts
Universal Output (UO):
A/D Converter Resolution
8 bit
10 bit
12 bit
16 bit
D/A Converter Resolution
6 bit
8 bit
10 bit
No Analog Output
HOA switches provided on each output?
Note: These are also available as an add-on from 3rd party vendors.
Both AO and DO
DO Only
Indicating status LED on each output?
AO and DO
AO Only
DO Only
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 TP/FT-10a: 78 Kbps
External Communication Ports, Speeds and Access Devices Weigand, any bit format.
Additional Information (Optional)
Network Accessing Capabilities via Controller
Access controller only
Access controller plus additional controllers on network segment / LAN
Access all controllers on system
No access available on this controller
Controller Access Devices
Local Display Panel (controller-mounted)
Local Display Panel (zone-mounted)
Handheld Interface Device (proprietary device)
PDA (3rd-Party HID)
Zone-Based port (details below)
Zone-Based Interface Access None. But see the EC-Display V-2 Product detail. (Can interface with up to 250 variables)
Zone Interface Hardware
Zone-Mounted touchpad (thermostat or stand-alone display)
HID (proprietary device)
PDA (3rd party HID, with software)
*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.
Functions Available Through Field Interface**:View ParamsChange ParamsChange
O&M SupportTAB/Cx Support
Local Display Panel (controller-mounted)
Local Display Panel (zone-mounted)
Handheld Interface Device (proprietary device)
PDA (3rd-Party HID)
Zone-Based port (details below)
Microprocessor(s) Neuron
Clock Type
Powered, battery-backed
Battery powered
Powered, no battery backing
Clock Synchronization SNVT_time_stamp
Volatile Memory (RAM) Capacity 128 kB
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
Others User Database
Is Volatile Memory Supported By Battery? Yes
Battery Type(s) Lithium cell
Battery Life 3 years
Backup Battery Operating Time 90 days
Non-Volatile Memory Capacity (EEPROM/Flash)*
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? 2000 Events and messages
What is the controllers role in trending? Storing all activiting occuring at a door.
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? Percentage full triggers an upload - logging continues.
Programming Method(s) Card database is programmed via UI
Resident vs Non-Resident Program Execution
Resident/Supervisory. This controller supervises the scheduling of other controllers.
Resident/Stand Alone. This controller contains its own schedule.
Non-Resident. This controller is dependent upon another controller for its schedule.
None. This controller has no scheduling features.
Resident Energy Management
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
Controller is not typically used for energy management functions
Specific Pre-Programmed Algorithms Available
None (custom programming only)
None (not applicable)
Optimal Start/Optimal Stop
Peak Demand Limiting/Load Shedding
Economizer (enthalpy, dry-bulb, CO2, modulating/2-position, etc.)
Additional Energy Management functions are resident at SI
Additional Programming Functions
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? Yes
Are multiple destinations possible?
Upon controller power loss or hardware failure:
Are network communications affected? No
Is loss recognized on/by the network and alarm reported? Yes
DO and AO response?
Outputs fail to a user pre-specified position
Outputs fail to a normal (unpowered) position
Outputs fail to last position
Volatile memory functions?
Retained for life of backup battery
Upon restoration of power does the controller:
Auto-reboot without operator intervention? Yes
Automatically reset/synchronize the clock? Yes
Update all monitored functions? Yes
Generate an alarm if backup battery is dead? No
Upon network or communications failure does controller:
Continue to operate standalone? Yes
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? Yes
Does network store 'loss of communications' alarm with time of event? Yes
Additional Information (optional)
Self Test Diagnostics
Does controller have internal self-test diagnostics to check:
Processor failure? Yes
Internal hardware failure? Yes
Open/shortened sensor? Yes (Door sensor and Request-To-Exit sensor)
Others? Yes - card readers
Control Enclosure
Power Supply Required Yes
Voltage 24 VDC
Tolerance 21 to 28 VDC
VA with 1 reader 255m @ 24VDC
with 2 readers 400m @ 24VDC
Surge Protection
Underwriters Laboratories Yes
FCC Part 15 Class A
CE EMC Directive 89/336/EEC
LonMark Certified
No - but LonWorks compatible
Information not provided
BACnet (BTL) Certified
Not submitted for testing
Information not provided