As technology continues to advance, building management systems (BMS) have become increasingly sophisticated, allowing for greater control, monitoring, and optimization of building operations.
One of the key features of any BMS system is the use of modules, which are individual components that work together to perform specific tasks.
These tasks can range from monitoring energy usage to controlling HVAC systems and even managing access control. Understanding the different modules in a BMS system is essential for building owners and facilities managers to operate and optimize their buildings effectively.
In this blog post, we will explore the various modules that make up a BMS system and the role each one plays in ensuring building efficiency and occupant comfort.
Firstly, let us know what the meaning of a BMS is.
A BMS is an abbreviation for Building Management System.
It will be used to integrate with, monitor, and/or control your project’s MEP systems’ equipment.
Examples of MEP equipment:
- Chiller
- Chilled Water Pump
- Air Handling Unit
- Fan Coil Unit
- VAV
- Fans
- Ring Main Unit or RMU
- Transformer
- Generator
- Main Distribution Boards
- UPS
- Water Heater
- Booster Pumps
- ACS System
- CCTV system
- Fire Alarm System
- Lighting Control System
What is the second level or middle level in the BMS System?
We can divide the levels of the BMS system into three levels.
This second level, or the middle level, is mainly about the automated management of the functional processes in the BMS system.
The most important component of this level is the BMS panels. These panels can include many items, but the modules are one of the most important items.
So, what is the module in the BMS system?
A module is a device responsible for receiving the signal from a controller and sending it to a field device. It can also receive a feedback signal from a field device and send it to the controller to analyze it. Based on that, it will take action.
Also, we can call it an expansion module because it will increase the number of I/O points to be monitored and controlled by the controller of the BMS panel.
What are the different types of modules in the BMS system?
We have three types of modules:
- Input modules, either it’s Analog modules or digital modules.
- Output modules, either it’s Analog modules or digital modules.
- Universal modules, we have three types of this module.
3.1. The first type is the Universal input module, which can deal with analog/digital inputs only. UI abbreviates this module.
Then beside it, the total number of inputs will be written.
3.2. The second type is the universal output module, which can deal with analog/digital outputs only. UO abbreviates this module.
Then beside it, the total number of outputs will be written.
3.3. The third type is a universal input-output module. This module can deal with all types of signals, whether it’s digital or analog, Input or output.
Any type of these modules will have an abbreviation letter for its type, plus the number of points that can be connected to the module.
Some Examples for better understanding:
16DI module means that this module can be connected to 16 points, and the type of all these points is digital input.
8UI module means that this module can be connected to 8 different points, and the variety of these points is digital input, analog input, or both.
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