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Circon - 300 Series  

MAC-300-STA Multi-Application Controller for Scheduling, Trending and Alarming

Supervisory Interface Devices
Date Last Saved: 4/30/2004 8:50:37 AM

Product Name(s): MAC-300-STA Multi-Application Controller for Scheduling, Trending and Alarming
Product Description: The Circon MAC-300-STA comes complete with multiple scheduling functional blocks that support structured, enumerated, and integer network variable types, and a battery backed real-time clock suited for interoperable multi-vendor LonWorks networks. Combined with the scheduling capabilities, the MAC-300-STA comes with trending and alarming functional blocks to monitor building conditions. Integration with Douglas Lighting Controls' LonWorks-based programmable lighting relay panels is achieved through the MAC-300-STA's innovative scene transmitter functional block that monitors the state of the lighting schedules and buffers the scene events using one network variable. The MAC-300-STA functional blocks are configured using Circon LNS® plug-ins that include a device viewer; data upload services are provided when used in conjunction with Circon's Visual Integrator 3 software . With Visual Integrator and the MAC-300-STA, a complete operator workstation system for managing scheduling, trending and alarming can be created functionally integrating any LonWorks device into the facilities management system.
Product Application(s): Scheduling, trending, and alarming for Multi-Vendor LonWorks® Networks
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)
(1)Echelon Free Topology Transceiver (FTT-10A)78kbps
External Communication Ports, Speeds and Access Devices
Additional Information (Optional)
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.
Microprocessor(s) Neuron 3150 10 MHz
Clock Type
Powered, battery-backed
Battery powered
Powered, no battery backing
Clock Synchronization Information Not Provided
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? Information Not Provided
Battery Type(s) Information Not Provided
Battery Life Information Not Provided
Backup Battery Operating Time Information Not Provided
Non-Volatile Memory Capacity (EEPROM/Flash)* Information Not Provided
Non-Volatile Memory Uses
Data / Trends / Alarms / Calculation Storage
Configuration / Parameter Storage
Control Programming Storage
Controller Operating System
Other Information Not Provided
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, up to 10 individual trend logs can be configured (10 different sets of trend values)
How many total trend values can be stored? 300 allocated by user over the configured trend logs
What is the controllers role in trending? Controller holds the trend configuration (point to trend, sample interval, criteria for sample, and performs sampling accordingly, recording data in trend log.
The MAC-300-STA is designed to provide trending for other devices on network that do not have trending capability, via netowrk variable binding.
Can controller be programmed to 'push' data to archive or are trends 'pulled' from controller? Pulled from controller by trend log viewer plug-in and by Circon's HMI Visual Integrator 3.
When full, does controller automatically send up trend data, overwrite data, or stop logging data? Overwrite oldest data
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 External transformer required
Voltage 24 VAC, 50-60 Hz or 24 VDC
Surge Protection
Underwriters Laboratories UL 916 certification for Energy Management Equipment
FCC Part 15, Class B of the FCC rules for Radio Frequency Devices
CE Information Not Provided
LonMark Certified
No - but LonWorks compatible
Information not provided
BACnet (BTL) Certified
Not submitted for testing
Information not provided
Other CSA 22.2 #205-M1983, #950-M89

Programming Method(s)

(See also 'Software' Form)

Uses a template-based form of programming. Configuration performed on laptop/PC running LNS network management tool and the device-specific configuration LNS plug-in supplied by Circon


(See also 'Software' Form)

12 configurable schedule blocks with enumerated, structured and integer-based network variable types allow scheduling of a variety LonWorks devices

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 None
Additional SI Functions

Automatic-Dial Alarm Support

(See also 'Software' Form)

Yes, in conjunction with Circon SMC-300 Site Management Controller
Does SI perform multiple retries and buffer/store alarm until connection is made? Yes. Controller monitors up to 10 points for configurable alarm conditions. Configuration performed by LNS plug-in software.
Are multiple destinations possible? Yes, in conjunction with Circon SMC-300 Site Management Controller which can be configured.
Upon SI power loss or hardware failure:
Is loss recognized on/by the network and alarm reported? Information Not Provided
Upon restoration of power does the SI:
Auto-reboot without operator intervention? Yes
Automatically reset/synchronize its clock? Yes
Automatically reset/synchronize its secondary network? Yes
Update all monitored functions? Yes
Generate an alarm if backup battery is dead?
Control Enclosure Metal (5.6" X 5.75" X 1")