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Building Management
System
An Overview to BMS
2 File Number
What is BMS?
- A micro-processor based system which centralizes and simplifies…
controllingmonitoring operation and…management
…of heating, air-conditioning, ventilation & other building services to achieve…
» safe and comfortable working environment» energy saving & efficient operation» at reduced time & cost
3 File Number
BMS provides…
Comfortable & safe environmentfor your building
by controlling…..
Air Handling UnitsFan Coil UnitsChillersPumpsBoilersVFD’s
and many more…..
4 File Number
Components of BMS
- Centralized WorkStation ComputerWith powerful user-friendly software.Used for everyday building operation.
- Field devicesTemperature, Humidity, Pressure sensorsValves, Actuators
- DDC ControllersMicro-processor basedPre-configured / Freely programmableControls the HVAC equipment of the building
5 File Number
LOG-IN
BMS Features….
• Man / Machine Interface- interact with the connected
technical building equipment.- user friendly - for operators…- engineers….- and building managers
• System Security- To prevent unauthorized use - Password protection- Operator specific access- Operator log summary
6 File Number
BMS Features….
• User-friendly data presentation- co-ordination of the flow of
information through the system by implementing customized graphics.
- floor plans of the building- graphical representation of the
equipment.
• Alarm Management- the presentation in the sequence of
importance and time of..potentially dangerous situations process value deviations
- guiding the operator to take appropriate action through..
audible and visual indicationsEmail, SMS
- alarm summaryTime, date, priority and description
7 File Number
BMS Features….
• Reporting- present customized subsets of
data- actual or historical state - export as a word or excel
document or..- to a printer.
• Data Logging- The automatic gathering and
storage of data from the field equipment for later analysis and reporting
- Dynamically or historical- Customized charts and graphs- Tabular reports
8 File Number
BMS Features….
• Time Scheduling- time-based start/stop of the
equipment- saves energy cost and efficient
operation- effective for lighting, occupancy
control- can be as daily, weekly, for holidays
or events
• Event recording- automatic logging of…
operator activities and commandsprocesses related to connected devicesworkstations and printers.
9 File Number
BMS Features….
• Remote connectivity- provide remote access to
the system with full functionality through..
local area networkdial-upinternet via web browser
10 File Number
BMS Benefits….
• Improved indoor environment quality- Comfortable living and working
environment – domestic or commercial
- Better temperature and humidity control
- Good air quality
• Faster response to ..- occupant needs- end-user complaints- trouble conditions
11 File Number
BMS Benefits….
• Maintenance Savings.- efficient control gives less wear and
strain of mechanical equipment.- provides longer life- runtime monitoring alerts timely
maintenance of equipment- avoids expensive failures
• Energy Savings- eliminates unnecessary system
operation.- accurate energy usage information - helps you to take steps to reduce
energy consumption like…Optimum-StartNight-PurgingTime-Scheduling
12 File Number
BMS Benefits….
Consolidated facility control…- One point centralized operation- Simpler operation - Reduces time and resources
• Reduced operator training - on-screen instructions- user-friendly graphic displays- simpler operation programmed for
routine and repetitive operation
13 File Number
BMS Benefits….
• Improved management reporting- Provides valuable real-time data- Creates reports, charts…- Critical information immediately sent
to printers, emailed - or sent via SMS
• Timely and effective control- alerts your employees when your
facility is not operating correctly- reduce troubleshooting and down
time.- Remote access connectivity without
site visits.
14 File Number
BMS Benefits….
• Performance Benchmarking- Facilitates the overall system
performance measurement- Comparison with set benchmarks
15 File Number
Almost all applications in building automation are based on a common functionality
I/O functions(field devices)
Processingfunctions
Managementfunctions
Operatorfunctions PagingHelpOperation
Set point rangeCalculationy = f(x)
Closed loop ctrl.
Recording Supervision
Networking
Alarming
Operat.hours
0 0 0 9 7 8 h
Backup power control
CountingCharacteristics
Measuring
J
Time programTechn. alarm
MaintenanceEngineering
Interlocks
Peak dem. limit
kWh
s
0 0 2 9 7 3 8
Safety alarm
Data analyses
Man. operation
Positioning
M
Reporting
+ -
Signaling Switching
M
Documentation