DDC Online direct digital controls
KMC Controls - KMC BACnet  

System Architecture

Date Last Saved: 7/27/2010 1:21:58 PM

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
PC using BACstage or TotalControl Software
"Thin" Client Browser Internet Explorer iNetView required for concurrent users.
"Thick" Client Browser OWS with TotalControl software required.
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 NetSensor(s): Wall mounted operator interface device with sensor and auxiliary PC communication port. Has 9 function keys and 4 character display. Can be configured to allow status reading, change of setpoint, or on/off control.
Other thermostat types available (without communication ports)
Interface to BAS Networks Primary network uses BACnet/IP protocol and is comaptible with Ethernet/IP.
Compatible with the building's IT network? Yes.
Protocol(s) BACnet MS/TP
Cabling and Speeds Standard IP Cabling @76.8 kbps
Expansion Capability Information not provided.
Additional Information
Peer-to-Peer or Polling? Peer to Peer
Protocol(s) SubLAN Proprietary
Cabling and Speeds UTP @ 38.4 kbps
Expansion Capability N.A.
Additional Information
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) BAC-5050
Application The BAC-5050 is a multi-port router that performs IP assembling/disassembling (PAD) routing for up to four BACnet IP PAD networks
Classification Router
between
BACnet/IP
and
BACnet MS/TP
Additional Information
Model (Device) Application
Model (Device) BAC-A1616BC
Application BAC-A1616BC is a primary controller that also routes traffic between BACnet MS/TP and the BACnet/IP or BACnet over Ethernet networks.
Classification Primary Controller
between
BACnet/IP
and
BACnet MS/TP
Additional Information