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Raising BACnet

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* Building Automation is Embracing IP Networks * Building Automation Network: Hierarchy We see three layers plus the Internet. Sensors and actuators at the bottom, ... – PowerPoint PPT presentation

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Title: Raising BACnet


1
Raising BACnet to the Next Level
2
Our Approach to Building Automation
We believe all building automation devices
including BACnet compliant devices should be
accessible from an IP Infrastructure.
3
Building Automation is Embracing IP Networks
4
Building Automation Network Hierarchy
We see three layers plus the Internet. Sensors
and actuators at the bottom, MS/TP and Modbus
fieldbuses in the middle, and Ethernet at the top.
5
Our Strategy Put Everything up on IP
  • Raising communication up to Ethernet is key to
    our strategy
  • Wireless would represent the next step
  • PoE may become the preferred method when
    powering BAS devices in the field
  • We produce automation products that attach to
    IPnetworks

With structured wiring, the prominent cabling is
CAT 5. Fieldbus wiring will become less
attractive.
6
Internet Connectivity
  • We can connect to the Internet with a Skorpion IP
    Router
  • Four-port LAN-side switch
  • WAN-side Ethernet port
  • WAN-side DHCP client
  • LAN-side DHCP server
  • Port Address Translation
  • Network Address Translation
  • Port Forwarding
  • Stateful Firewall
  • PPPoE protocol for DSL
  • Web page configuration

A router is needed to view BAS Remote web pages
from the Internet.
7
BAS Switch Plug Play Ethernet Switch
  • Five 10/100 Mbps Ethernet ports
  • Auto-negotiation and Auto-MDIX
  • Intended for shallow panels
  • 24 VAC/VDC powered
  • DIN-rail or panel mounting

LED indicators show link, activity and data rate.
8
Skorpion Plug Play Switch
  • Five 10/100 Mbps Ethernet ports
  • Auto-negotiation and Auto-MDIX
  • Minimal DIN-rail space requirement
  • 24 VAC/VDC powered
  • DIN-rail mounting

Single-mode or multimode fibre optic versions are
available.
9
Skorpion Managed Ethernet Switch
  • Eight 10/100 Mbps Ethernet ports
  • Auto-negotiation and Auto-MDIX
  • SNMP protocol
  • IGMP snooping with query
  • Virtual LAN (VLAN)
  • Quality of Service (QoS)
  • RSTP or RapidRingcable redundancy
  • Port mirroring, portsecurity rate limiting
  • Web page configuration
  • 24 VAC/VDC powered
  • DIN-rail mounting

Dual single-mode or multimode fibre optic
versions are available.
10
Skorpion PoE Injector
  • Can fully power one Powered Device (PD)
  • Mid-span Power Sourcing Equipment (PSE)
  • Isolated 15.4 W power output
  • IEEE 802.3af compliant
  • 24 VAC/VDC powered
  • DIN-rail mounting

This mid-span device will work with any 10/100
Mbps Ethernet switch.
11
BAS Router BACnet/IP to BACnet MS/TP
In order to communicate between BACnet/IP and
BACnet MS/TP a special router is needed. A
standard IP router will not do. That is why we
designed the BAS Router.
12
BAS Router BACnet/IP to BACnet MS/TP
  • 10/100 Mbps Ethernet port
  • MS/TP EIA-485 port
  • Opto-isolated EIA-485 transceiver
  • Serial baud rate up to 76.8 kbps
  • LED activity indicators on both ports
  • 24 VAC/VDC powered
  • DIN-rail mounted
  • Web page configuration

Provides the means for accessing BACnet MS/TP
devices from Ethernet.
13
BAS Portable Router
The same functionality as the BAS Router can be
gained in the BAS Portable Router which is
intended for connection to a laptop. It is
useful for troubleshooting and commissioning a
BACnet MS/TP network.
14
BAS Portable Router BACnet/IP to BACnet MS/TP
  • Same functionality as the BAS Router
  • Receives power from a USB port on a laptop
    computer
  • Ideal for tools that commission or troubleshoot
    BACnet networks

Although powered from USB, communication is
through Ethernet.
15
BAS Router Enhancements
  • Add BACnet/IP Broadcast Management Device (BBMD)
  • Allows BACnet/IP systems to cross IP routers
  • Receives Foreign Device Registration requests
  • Add support for BACnet/Ethernet to MS/TP routing
  • Companies such as Alerton could use Ethernet and
    not IP
  • This feature allows for a greater range of
    applications
  • Add support for BACnet/IP to BACnet/Ethernet
    routing
  • Supports companies like Alerton with their
    BACnet/Ethernet equipment
  • Called a one-arm router since only one RJ-45
    connector is used

16
BAS Remote Versatile Web Appliance
One capability of the BAS Remote is that it can
function as a Modbus master to attached Modbus
serial devices such as power meters and drives.
17
BAS Remote Versatile Web Appliance
  • BACnet/IP remote I/O
  • Modbus TCP remote I/O
  • Universal I/O points
  • Relay output points
  • Modbus TCP to ModbusSerial router
  • Modbus master to attachedModbus ASCII or RTU
    Slaves
  • 10/100 Mbps Ethernet port
  • Web page configuration

A 2-wire Modbus serial port provides access to a
wealth of Modbus I/O devices.
The BAS Remote I/O count can be increased by
adding expansion modules
18
BAS Remote Master Module
  • BACnet/IP compliant
  • B-ASC device profile
  • 6 universal I/O points
  • 2 relay outputs
  • 24 VDC loop supply
  • Modbus TCP Server
  • Modbus serial gateway
  • Expansion port
  • 24 VAC/VDC powered
  • DIN-rail mounted

LED indicators relate the state of the I/O points
while identifying Ethernet activity.
19
Universal I/O - Analog Inputs
  • Voltage
  • 0-10 VDC
  • 0-5 VDC
  • 1-5 VDC
  • 2-10 VDC
  • Current
  • 0-20 mA
  • 4-20 mA
  • Type II or III 10kO thermistor

The BAS Remote provides a 24VDC loop supply to
power transmitters.
20
Universal I/O - Analog Outputs
  • Voltage
  • 0-10 VDC
  • 0-5 VDC
  • 1-5 VDC
  • 2-10 VDC
  • Current
  • 0-20 mA
  • 4-20 mA

Motorized actuators are typically used to
position dampers. Position feedback is sensed
using an analog input on the BAS Remote.
Analog outputs source current to ground and
therefore no loop power supply is required. The
output burden can be as high as 750O.
21
Universal I/O Digital Inputs
  • Dry contact closure
  • Pulse inputs

Pulse input rates can be as high as 40 Hz. A
typical application is meter reading or flow rate
measurement. The BAS Remote will accumulate
counts or determine pulse rate.
22
Relay Contact Outputs
  • Two form C contacts
  • Contacts rated at 2 A and 30 VAC/VDC
  • Intended for Class 2 circuits

In order to switch higher loads or interface with
Class 1 circuits, interposing relays are
required. However, with a 2 A contact many loads
can be driven directly.
23
BAS Remote Power Requirements
  • 24 VAC/VDC
  • 10VA
  • Half-wave rectified power

Although half-wave rectified power is less
efficient, it allows for the sharing of power
with other equipment. Interfacing of equipment
is much easier since most equipment is not
isolated from their power source. With full-wave
rectified equipment, a dedicated transformer is
required.
24
Typical BAS Remote Wiring
25
Set-up is Accomplished Through Web Pages
26
Expanding I/O Points in the Field
In order to increase the I/O count without adding
another Ethernet drop, up to three expansion
modules can attach to one master module.
Communications between master and expansion is
done through a proprietary serial bus.
Master modules carry a BASR-8M part designation
while expansion modules are identified as BASR-8X.
27
BAS Remote Expansion for Additional I/O
  • Same I/O count as the master six universal I/O
    and two relay outputs
  • Instead of a MB Modbus serial gateway port there
    is an UP port that connects to the master
  • The DN port connects to and next downstream
    expansion module

28
The One-Cable Solution Power over Ethernet
Simply make a connection from a PoE compliant
Ethernet switch port to the Ethernet port on the
BAS Remote.
Both the BAS Remote and field devices can be
powered from the data cable.
Saves from purchasing proprietary BAS cabling and
the associated cost of installation. May gain
you points towards green certification.
29
BAS Remote PoE to Reduce Wiring
  • Same functionality as BAS Remote Master except
    no input power requirement!
  • Used to promote our One Cable Solution
  • Ideal when there is noconvenient source
    oflow-voltage power

Good for going Green!
The BAS Remote PoE can still provide 24 VDC power
for field devices using a single PoE connection.
30
BAS Remote Enhancements
  • Introduce control
  • Sub-metering application
  • Modbus-BACnet gateway
  • Web Services
  • Add more BACnet services

31
BAS Remote Introduce Control
  • As a remote I/O device the BAS Remote cannot make
    control decisions on its own. Control
    functionality can be gained by incorporating
    Sedona from Tridium.
  • Utilizes a graphical programming scheme similar
    to Niagara Framework
  • We are allowed to market the product as Niagara
    Ready after a certification process
  • Allows customers familiar with Niagara the
    ability to implement control loops within the BAS
    Remote
  • No additional programming tools needed if the
    system integrator already has Tridiums Workbench

With Sedona, the BAS Remote can communicate using
the SOX protocol with a JACE running Niagara
Framework.
32
Sedona Framework Graphical Programming
Tridiums Workbench can be used to program Sedona
running in the BAS Remote.
33
Building Controller Client Residing on Ethernet
You need a client such as a B-BC in the system
since the BAS Remote is only a server.
Fibre is recommended between buildings and copper
within buildings.
34
BAS Remote Sub-metering Application
  • Sub-metering will become an important application
    as owners bill individual tenants for energy
    usage
  • Two ways of handling power measurement
  • Pulse meters that provide a pulse per each unit
    of energy
  • Modbus interface where calculations only need to
    be read
  • Modify the BAS Remote to directly handle
    sub-metering
  • Incorporate the new BACnet object for meter
    reading
  • Allow the customer to scale the meter through a
    web page
  • Handle multiple pulse or Modbus meters
  • Provide retentive memory in the event of a power
    outage
  • Maintain profiles of common Modbus meters in
    memory

35
BAS Remote Modbus to BACnet Gateway
  • Currently the BAS Remote can function as a Modbus
    TCP to Modbus serial router
  • Add Modbus serial to BACnet gateway in order to
    allow Modbus register to BACnet object mapping
  • Configuration through web page or product
    selection menu
  • Allows Modbus devices to be seamlessly treated as
    BACnet objects such as BO, BI, AO and AI

36
BAS Remote Web Services
  • BACnet is great for those familiar with building
    automation systems but what about IT personnel?
  • Add web services functionality to the BAS Remote
    based upon BACnet/Web Services
  • Allows IT personnel to access BAS data using XML
  • Investigate a competing web services technology
    called oBIX

37
BAS Remote Add More BACnet Services
  • Add Foreign Device Registration which allows the
    BAS Remote to communicate through IP routers
  • Add Change-of-Value (COV) that will allow the BAS
    Remote to only report to a client any change in
    value of a point by more than a preset amount
  • Add Read-Property-Multiple (RPM) which allows for
    more efficient transfer of data

38
Our Products Are Green
39
  • Thank You

Visit our web site at http//www.ccontrols.com
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