The NAE is a component of the Metasys® system extended architecture. In terms of the BACnet protocol, the NAE is both an operator workstation and a building controller.

As an operator workstation, the NAE can monitor and supervise a network of BACnet devices. An operator views the data on a Web browser that is logged on to the Web-enabled user interface of the NAE. As a building controller, other BACnet devices on the network can read and write to the BACnet objects within the NAE.

The Metasys Network Control Engine (NCE) is an IP connected device that combines the network supervisory capabilities of a BACnet Building Controller with the control capabilities of a sophisticated BACnet Application Specific Controller including (I/O)point connectivity and adaptive, self tuning direct digital control.

All NCE models provide access to the Web based Metasys User Interface (UI). The NCE provides connectivity to and supervisory control of up to 32 BACnet MS/TP, LonWorks, or N2 protocol field controllers. An integral display and/or modem are available.

The FX16 is designed for commercial Heating, Ventilating, Air Conditioning, and Refrigeration (HVACR) applications, such as chillers, rooftop units, packaged air conditioning units, air handling units, and close control units, as well as small distributed control systems with terminal units. Models are available with an integral user display. The controller has 27 physical inputs and outputs and supports a wide range of temperature sensors and actuating devices. Up to 64 additional physical inputs and outputs can be added using XT/XP expansion modules. The FX16 can manage a distributed control application with up to 16 slave FX controllers. The FX16 Master Controller communicates via BACnet MS/TP and is fully programmable, using the FX Tools software package.

The FX14 is designed for commercial Heating, Ventilating, Air Conditioning, and Refrigeration (HVACR) applications such as multi-compressor and scroll compressors, close control units, unit ventilators and packaged air handling units. Parameters in the control application can be displayed and modified from the optional integral user display The controller has 29 physical inputs and outputs and supports a wide range of temperature sensors and actuating devices. The FX14 Field Controller communicates via BACnet MS/TP and is fully programmable, using the FX Tools software package.

The FX07 is a terminal unit controller, designed for commercial Heating, Ventilating, Air Conditioning, and Refrigeration (HVACR) applications such as small refrigeration compressors, close control units, roof-top air handlers, fan coil units, unit ventilators, and chilled or heated ceiling beam installations. Models are available for 24VAC or 230VAC power supply. The controller has 17 physical inputs and outputs and supports a wide range of temperature sensors and actuating devices. The FX07 has an optional integral user display with a set of graphic status icons used in the most common HVACR applications. The FX07 Field Controller communicates via BACnet MS/TP and is fully programmable, using the FX Tools software package.

The Field Equipment Controller (FEC) is a programmable digital controller that communicates via BACnet® Master-Slave/Token-Passing (MS/TP) protocol. The controllers featured in this family are the 10-point FEC1610 and the 17-point FEC2610. A full range of FEC models combined with the Input/Output Module (IOM) models can be applied to a wide variety of building applications ranging from simple fan coil or heat pump control, to advanced central plant management.

The Input/Output Module (IOM) serves two functions in the Metasys system: as point expansion modules for Field Equipment Controllers (FECs) and as point multiplexors for supervisory engines. They communicate via BACnet® Master-Slave/Token-Passing (MS/TP) protocol IOMs work as point multiplexors or on as control point expansion modules. As point multiplexors, IOMs allow an Network Automation Engine (NAE) to monitor and control supervisory points directly. As point expansion modules, the IOMs expand the point count of FECs.

The VMA1600 is a programmable digital controller that communicates via BACnet Master-Slave/Token-Passing (MS/TP) Protocol. All VMAs include a pressure sensor and actuator in a single pre-wired unit. The VMA1600 connects easily to NS Series Network BACnet Sensors for zone temperature sensing. The VMA1600 Series controllers can be configured for both single and dual duct VAV applications.

The TEC2600 Series Network Thermostat Controllers combine a thermostat, controller and temperature sensor into one device. They provide control of two- and four-pipe fan coil equipment, cabinet unit heaters, perimeter heating / cooling, and zoning. There are options for one- to three-speeds of fan control, dehumidification capability and offer additional application flexibility by providing advanced control signals Š proportional 0 to 10 VDC, on/off, or floating.

The TEC2600 Series Network Thermostat Controllers combine a thermostat, controller and temperature sensor into one device. They can be used with rooftop units (with and without economizers), heat pumps and single- and multi-stage heating/cooling equipment.

The NS Series Network Sensors are electronic zone sensors designed to function with any field control device that utilizes BACnet MS/TP communications, including Johnson Controls Metasys system extended architecture field control devices. Network sensor models monitor room temperature and discharge air temperature. Options for room temperature include monitoring of room humidity, local room temperature setpoint adjustment, zone fan speed control and other variables. Power requirements as well as network communications can be found in the documentation located at www.johnsoncontrols.com/metasys .