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ASIC/1-8655; ASIC/1-8755

Secondary Control Units
ASIC/1-8x55 Controllers
Date Last Saved: 11/2/2007 3:26:05 PM

Product Name(s): ASIC/1-8655; ASIC/1-8755
Product Description: The ASIC/1 controllers are preprogrammed specific application controllers. Different preprogrammed configurations may be selected for each controller to handle different control sequences.
Product Application(s): ASIC/1-8655 - Packaged Air Conditioning Units ASIC/1-8755 - Tracking VAV Controller
Point Quantity Characteristics
Analog Input (AI): N.A.
Digital Input (DI): N.A.
Universal Input (AI or DI): See Below 0-5 VDC, 10 bit, 0.1% full scale
3 kohm Thermistor
Analog Output (AO): See Below 0-10 VDC, 5mA, 8 bit
Digital Output (DO): See Below ASIC/1-8755:
Solid state switch, 24 VAC, 1 A
Form C Relays, 24 VAC, 5A
Universal Output (UO):
Control Unit Model #:AIDIUIDOAOUOOther
ASIC/1-8655 8 8 2
ASIC/1-8755 8 8
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 ASIC/1-8655 only
Integral Flow Sensor? ASIC/1-8755: YES
ASIC/1-8655: NO
Integral Damper Actuator? No
Can controller accept occupant override from thermostat? Yes
Can controller accept occupancy sensor input? Yes
Expander Boards
Network Ports, Protocol(s), and Speed(s) Supported
(Note: See 'Architecture' for network details)
(1) EIA-485 port with ASI proprietary protocol @ up to 19.2 kbps
External Communication Ports, Speeds and Access Devices (1) RJ-45 port for connection to WS-0x1 zone sensor
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 Controller has 8-position jack for RJ-45 cable to WS-0x1 Zone Thermostat. WS-0x1 has RJ-12 jack for connection of PDA or SINC/1-1030 which connects to a PC/Laptop.
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) Intel 8051 Family
Clock Type
Powered, battery-backed
Battery powered
Powered, no battery backing
Clock Synchronization Time based features can only be used when controller is connected to a network and can be synchronized by a time broadcast by the SINC/3-3000, ASIC/2 controller or PC.
Volatile Memory (RAM) Capacity Information not provided
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? No
Battery Type(s) None
Battery Life N.A.
Backup Battery Operating Time N.A.
Non-Volatile Memory Capacity (EEPROM/Flash)* ASIC/1-8755: EEPROM
ASIC/1-8655: 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? Two trends 96 bytes each 15 minute interval.
Trend 1 Zone Temperature (Default)
Trend 2 Supply Temperature (Typical)
What is the controllers role in trending? Data saved in non volatile memory.
Can controller be programmed to 'push' data to archive or are trends 'pulled' from controller? Information not provided.
When full, does controller automatically send up trend data, overwrite data, or stop logging data? Rolls over at end of day.
Programming Method(s) No user programming in necessary. A preprogrammed personality is selected depending on application.
Resident vs Non-Resident Program Execution Resident
Resident/Supervisory. This controller supervises the scheduling of other controllers.
Resident/Stand Alone. This controller contains its own schedule. Scheduled changes in setpoint can only occur when a time message is broadcast to the controller over the network.
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
Others Information not provided
Specific Pre-Programmed Algorithms Available
None (custom programming only)
None (not applicable)
Optimal Start/Optimal Stop
Peak Demand Limiting/Load Shedding (Setpoint Spread and Shed)
Economizer (enthalpy, dry-bulb, CO2, modulating/2-position, etc.) 8655 has dry-bulb modulating economizer with CO2 override.
Other Preprogrammed sequences are built in for different applications.
Additional Energy Management functions are resident at SI
Additional Programming Functions
DDC Loops (P, PI, PID) Pre-tuned PI algorithm
Automatic PID Tuning Feature No, controller comes pretuned and user can manually change Throttling Range.
Automatical-Dial Alarm Support No.
Does controller perform multiple retries and buffer/store alarm until connection is made? Controller sets alarm until it clears. The controller can be polled by the System controller which can send the alarm.
Are multiple destinations possible? N.A.
Upon controller power loss or hardware failure:
Are network communications affected? No. Skips off-line controller.
Is loss recognized on/by the network and alarm reported? Front end will typically report off-line if it does not receive a response.
DO and AO response?
Outputs fail to a user pre-specified position
Outputs fail to a normal (unpowered) position Outputs Off
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? Resumes normal operation.
Automatically reset/synchronize the clock? Accepts synchronize from SINC/3 or ASIC/2. Assumes Occupied if not synchronized.
Update all monitored functions? Trends continue.
Generate an alarm if backup battery is dead? N.A.
Upon network or communications failure does controller:
Continue to operate standalone? Continues to operate with internal schedule if time synchronized, otherwise it assumes occupied conditions and setpoints.
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? User interface can show off-line.
Additional Information (optional)
Self Test Diagnostics
Does controller have internal self-test diagnostics to check:
Processor failure? No
Internal hardware failure? No
Open/shortened sensor? Input Faults are set. If zone temperature is in fault the outputs are off.
Control Enclosure Optional Top Cover Kit
Power Supply Required Yes
Voltage 24 VAC +/- 15%
VA ASIC/1-8655: 12 VA (plus loads)
ASIC/1-8755: 6 VA (plus loads)
Surge Protection ASIC/1-8655: 2 A fuse
ASIC/1-8755: 1/2 A fuse
Underwriters Laboratories UL 916, Open Energy Management
FCC Meets FCC Requirements
CE Meets CE Requirements
LonMark Certified
No - but LonWorks compatible
Information not provided
BACnet (BTL) Certified
Not submitted for testing
Information not provided