AJS Technology, Inc. Since 1986

AJS1 Graphic Controller

The AJS1 Graphic Controller is a stand-alone, embedded, fanless, diskless, very cost effective, web-based graphical interface for commercial and residential building automation control systems. Multiple protocols are supported including LonWorks, ModBus/485, ModBus/TCP, BACnet/IP and BACnet MS/TP.

No special software or dedicated PC is needed as all programming is accomplished using an ordinary browser.  In addition, there are no complicated or restrictive licensing requirements.  No artificial point or user quantity limitations are imposed.

Typical Applications, both Commercial and Residential:

• Fan systems: single duct, dual duct, VAVs, PIUs, exhaust, etc.

• Packaged roof top units: interface to integrated controls (Modbus, BACnet and Lonworks)

• Central plant: chillers, cooling towers, heat pumps, boilers, staging, thermal storage, etc.

• Radiant heating cooling: mixing valves, variable speed injection pumps, slab and space temperature control, condensation prevention

• Snow melt applications, domestic heat priority control

• Solar controls (production, storage, usage, freeze-protection, energy totalization, etc.)

• Lighting (built-in astronomical timeclock for outdoor lighting - no photocell needed)

• Utility consumption: electrical, water, natural gas, thermal (BTUs)

• Irrigation

• Leak monitoring

• Generator monitoring and exercising

   

  Features:

• Animated graphics with user defined links to provide seamless navigation throughout system.

• Supports alerts sent as email or cell phone text message.

• Internally maintained schedules with sunrise/sunset and stagger offsets.

• Trend collection, display and export.

• Runtime accumulation with email notification.

• Alarm condition monitoring with email notification.

• Calculated point values (average, min, max, etc).

• Simple line programming for controlling equipment.

• Database of up to 100 users and 100 user groups.

• Multiple simultaneous users.

• Activity log for tracking important user actions.

• Template system for quickly cloning points, graphics, devices or entire networks.

• Support for OEM templates that include all points, graphics, schedules, etc. for any device.

• Flexible point addressing system allows access to most proprietary structures, bit fields and objects.

• Calculations may be performed on data points when read and/or written (e.g. Deg. F to Deg. C or scaling).

• Support for custom OEM plug-in software device modules for more complex data access.

• Built-in webserver uses the widely supported Adobe Flash graphics system.

• Support for up to 2,000 tree nodes which can be any combination of points, graphics, trends, etc. There are no hard limits on individual nodes.
   (Practical limits on control points will depend on communication speed and network bandwidth used.)
  

Typical Graphics

Any of the I/O devices shown above can also be programmed to run stand-alone (i.e. PID control loops and custom control sequences).

 Note that any standard Modbus controller, electrical or mechanical metering device, thermostat, PLC, etc., may be interfaced to the Modbus channel.

The above devices are shown as typical and have been successfully interfaced to the AJS1 Graphic Controller.
 
BACnet and Lonworks devices are also supported.

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