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Global Control Module (GCM) - 86000 Series

Supervisory Interface Devices
Global Control Module (GCM) - 86000 Series
Date Last Saved: 6/1/2007 2:30:41 PM

Product Name(s): Global Control Module (GCM) - 86000 Series
Product Description: The GCM is a supervisory interface device with network ports up to the primary IP-based network (Ethernet LAN) and to the secondary network ASD Bus supporting all Network 8000 controllers. It also has network ports to support an optional, proprietary Echelon-based primary network, an optional GCS Bus (for older controllers), and an LCM Bus (supporting LCMs if necessary). It also supports a modem and serial PC connection. Up to 31 GCMs can be supported on the primary network; up to 128 devices can be supported on the ASD Bus; and up to 31 LCMs can be supported on the LCM Bus.
Product Application(s): The GCM is required for communications and control functionality between all controllers on the peer-to-peer secondary network(s) by providing schedules, trending, data control, and global energy management and point sharing.
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)
Primary network ports (choice of one):

Ethernet LAN: Proprietary/IP @ 10 Mbps (peer-to-peer)

(Optional) Echelon LAN: Proprietary @ 1.25 Mbps (peer-to-peer). Does not use the LonTalk protocol.

Secondary network ports (any 2 available):

ASD Bus: Proprietary @ 19.2 kbps (peer-to-peer). Supports current secondary controllers.

LCM Bus: Proprietary @ 19.2 kbps (peer-to-peer). Supports LCMs if required, but rarely used.

Fiber optic interfaces are optional for any or all ports.
External Communication Ports, Speeds and Access Devices EIA-232 PC/modem/terminal configurable port operating up to 9.6 kbps.
Additional Information (Optional) Optional front panel alphanumeric display and keypad permit access to entire network from the GCM.
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) 80C88 @ 8 MHz
Clock Type
Powered, battery-backed
Battery powered
Powered, no battery backing
Clock Synchronization Information not provided
Volatile Memory (RAM) Capacity 86000 Series: 1.28 MB RAM
(84000 Series: 640 kB RAM)
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? Yes
Battery Type(s) Information not provided
Battery Life Information not provided
Backup Battery Operating Time Information not provided
Non-Volatile Memory Capacity (EEPROM/Flash)* 86000 Series: 1.28 MB EEPROM
(84000 Series: 640 kB EEPROM)
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? Trend value storage limited by RAM.
What is the controllers role in trending? The GCM gathers trend data from its controllers and stores it in RAM. At set intervals, data is sent by the SI to workstation for archival.
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? If GCM trend data buffer fills before being called by archive workstation, old data is overwritten
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 24 Vac
VA 30 VA
Surge Protection Provided
Underwriters Laboratories UL 916 (Energy Management)
UUKL 864 (Smoke Control)
CSA (LR 3782-139)
FCC Part 15, Sub-Part B, Class 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)

Uses Network 8000 Object Block programming. 'Object Blocks' are available for many common DDC control routines, and custom Object Blocks can be written and used in programming when required. Block parameters and values are left as template-based inputs by the user.


(See also 'Software' Form)

The GCM provides advanced scheduling options for it's connected controllers, including weekend, holiday, and exception day scheduling, and optimal start/stop.

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 No
Additional SI Functions Built-in functions for HVAC and lighting/electrical equipment peak demand limiting/shedding allow for time-of-day (TOD) demand setpoints, temperature-compensated demand shedding, variable TOD period definitions, and shed priority tables. Allows for "deviation from setpoint", "priority first-off/last-on" or "rotating first-off/first-on" shedding.

Automatic-Dial Alarm Support

(See also 'Software' Form)

Information not provided
Does SI perform multiple retries and buffer/store alarm until connection is made? Information not provided
Are multiple destinations possible? Information not provided
Upon SI power loss or hardware failure:
Is loss recognized on/by the network and alarm reported? Yes
Upon restoration of power does the SI:
Auto-reboot without operator intervention? Yes
Automatically reset/synchronize its clock? Information not provided
Automatically reset/synchronize its secondary network? Information not provided
Update all monitored functions? Yes
Generate an alarm if backup battery is dead? Information not provided
Control Enclosure Information not provided