DDC Online direct digital controls
Honeywell - WEBs-AX  

System Architecture

Date Last Saved: 3/5/2012 9:05:14 AM

This section distinguishes between Operator Interfaces and Field Interfaces to the BAS. The Operator Interface refers to the main 'front-end' method for accessing and operating the BAS. The Field Interfaces typically access the BAS from the controller-level and have limited functionality, and may include HID, LDP, and ZBI as described below. This section describes the devices only; OI functionality is generally covered in the Software, while Field Interface functionality is detailed further in the individual Controllers
Operator Interfaces (OI)
Dedicated Operator Workstation (OWS)
Dedicated PC(s) with proprietary workstation software
Honeywell WEBStation is a server that provides scheduling, trending, graphic display, alarm management, time management, archiving, and information management.
"Thin" Client Browser Honeywell WEBPro is a tool that enables web-enabled building management systems.
"Thick" Client Browser N.A.
Product Application(s): N.A.
Handheld Interface Devices (HID)
PDA-Based N.A.
Proprietary N.A.
Local Display Panel (LDP) N.A.
Zone Based Interfaces (ZBI)
Thermostat with communication port to access local controller/network Information not provided
Other thermostat types available (without communication ports)
Interface to BAS Networks Each primary controller communicates over the building IT/Ethernet network @ 10/100 MB. Information can be sent over the LonTalk protocol or TCP/IP.
Compatible with the building's IT network? Yes
Protocol(s) LonTalk
Cabling and Speeds twisted pair @ 78.6 kbps
Expansion Capability Information not provided
Additional Information
Peer-to-Peer or Polling? N.A.
Protocol(s) N.A.
Cabling and Speeds N.A.
Expansion Capability N.A.
Additional Information N.A.
Includes a listing of available Gateways, Routers and other devices that provide additional communications flexibility into and out of the BAS. Repeaters, bridges, standard modems and the like are typically not included here. Note: If in use by the BAS, the Internet/building IT Network is extremely open and non-proprietary. If a vendor uses the IT Network, CI devices such as IP routers and hubs can be purchased from third parties.
Model (Device) Application
Model (Device) BANnet IP Client Driver Controller
Application Communication Interface
Classification Gateway
between
IT network
and
BACnet IP
Additional Information
Model (Device) Application
Model (Device) BACnet MS/TP Driver
Application Communication Interface
Classification Gateway
between
IT network
and
BACnet MS/TP
Additional Information
Model (Device) Application
Model (Device) Modbus RTU Driver
Application Communication Interface
Classification Gateway
between
IT network
and
Modbus network
Additional Information
Model (Device) Application
Model (Device) LonTalk Driver
Application Communication Interface
Classification Gateway
between
IT network
and
LonTalk network
Additional Information
Model (Device) Application
Model (Device) ModBus TCP Driver
Application Communication Interface
Classification Gateway
between
IT network
and
Modbus Network
Additional Information