Building Management System BMS Introduction

1. What is BMS ?
• Provides a single sea for Monitoring and
Control of various parameters in a
building for all utilities, integration with
Fire & life safety systems, to offer
precision control, automation, safety
lockouts, energy savings and advanced
information management systems to
enable take corrective actions – pre and
post the events

2. How do we achieve this ?
• Place intelligent Systems at various locations
in a building
• Capture important and critical parameters
• Measure and gather field data through
intelligent field devices and sensors etc.,
• Process the applications through DDC
technology
• Analyze current performance and take
corrective actions

3. Why do we need BMS ?
• Every piece of equipment in a building today
is highly intelligent
• Complex algorithms to be processed
• Multiple buildings and a single seat of access
• Energy Costs are increasing
• Occupants want faster, quality and timely
response
• Building functions keep changing
• Buildings are an asset to the owner
• Safer and healthier place for occupants

4. BACNET / TCP / IP Dedicated LAN
Router
Lighting
Access Control
HVAC
Utility Metering
Other Services
CCTV
Typical Floor
Router
Lighting
HVAC
Utility Metering
CCTV
HV Switch Room
HV Switch gears
Diesel
Generator
Fire Panel
Excavation
Warning
System
IBMS
Workstation
LCD
Monitors Primary & Secondary Server Web Server
Firewall
Internet
Integrated BMS Architecture

5. Benefits
• Precision control
• Automatic operations
• Safety Interlock
• Energy savings
• Better Maintenance management
• Good Information Systems

6. Sub-systems of BAS
• Energy management systems
– HVAC
– Electrical
– Lighting
– Misc utilities like hydrant, water systems
• Fire, life safety systems
– Fire detection systems
– Access control systems
– CCTV systems
– Perimeter protection systems

7. What is a typical application in BMS?
• HVAC
• Monitor and control high side equipment including chiller through
integration on Modbus /Bacnet for trending of parameters
• Monitoring and control of Pumps and other associated equipment
for High side
• Monitoring and control of AHUs, VFDs, IAQ parameters
• Monitoring of CO levels in basement
• Integration of precision air conditioner for server
room/switch/hub/IDF rooms

8. Control Loop
• The process of controlling an HVAC
system involves three steps. These
steps include first measuring data,
then processing the data with other
information and finally causing a
control action. These three functions
make up what is known as a control
loop
• achieved through Direct Digital
Controllers

9. PROTOCOLS used in BMS
BACnet
ModBus
LonWorks

10. Gateway
A device that translates one set of
communication rules to another. It
connects networks that use different
protocols, allowing them to pass data to
each other. A gateway is sometimes called
an “integrator” or “bridge.”

11. Integration
Combines several functional systems into
one (for example: security, metering,
lighting, HVAC, and fire-alarm systems).
Signals from these systems travel over the
same digital network, and they can be
controlled from the same workstation
using uniform commands and graphics.

12. CONTROL FUNDAMENTALS