- June 23, 2023
- Posted by: editor
- Categories:
What is Distributed control system (DCS)?
A distributed control system (DCS) is a comprehensive control and automation framework that integrates a network of sensors, controllers, and interconnected computers strategically deployed throughout a plant or industrial facility.
The aim of using a distributed control system is to control industrial processes to increase safety parameters and make the process more error-free and cost-effective. A DCS uses an autonomous controller instead of a centralized controller, so there is no central operator supervisory control.
A DCS comprises elements like computers, sensors, and controllers. Each of them serves a different purpose, such as data collection, data storage, and process control.
What is an example of a Distributed Control System?
One example of a distributed control system is chemical plants. There the DCS is used for controlling different process variables such as temperature, pressure, flow rate, compositions, etc.
What are the differences between DCS vs SCADA?
While both SCADA and DCS are a compilation of softwares and hardware that are used for controlling systems remotely and adding to automation, they have some distinctions. Below are some of the major differences between the two.
| DCS | SCADA |
| DCS is process oriented | SCADA is data acquisition oriented |
| DCS is state driven | SCADA is event-driven |
| DCS can control thousands of process variables precisely and continuously | SCADA can monitor and operate a huge number of remote terminal units. |
| DCS is commonly used to handle operations on a single locale. | SCADA has flexibility to integrate with a wide range of third parties. |
| DCS is limited in compatibility with third parties. | SCADA has the flexibility to integrate with a wide range of third parties. |
| DCS has better safety parameters. | SCADA has better open communication architecture. |
What are the top DCS system companies?
Here are some top DCS system companies that operate globally (based on our extensive research, brand reputation, and services offered):
- iPAC Automation Pvt Ltd.
- ABB Ltd.
- Honeywell
- Siemens AG
- Emerson
- Yokogawa Electric
- Rockwell Automation (Allen Bradley)
- Valmet
- Schneider Electric