What is redundancy in control systems and why is it important?
<![CDATA[Redundancy in control systems refers to the practice of maintaining an additional piece of equipment, device, or software capable of performing the same functions as the original with the same level of reliability. Or put another way, that the failure of any component does not affect the operation and operability of all other components. Since this is a copy of the original, all specifications related to hardware or software must be the same. The redundancy of a good control system works by taking control in the event of failure of any component of the original system. It should also recover from the fault state automatically without human involvement, immediately starting a normal mode of operation. Also, the time from system failure to automatic control should be kept to a minimum. This is necessary and important because redundant systems are applied in industries where the occurrence of system failures is unacceptable due to critical processes.
Why is redundancy important for control systems?The primary goal of redundancy in a control system is to eliminate dependency on a single module while providing multiple options in the event of a failure. Redundancy in a control system decreases the consequences of a component failure. Makes resources available in the event of a problem. The importance of a redundant system is also increased in a variety of scenarios including: -Continuous processes -Irreversible processes -Long restart times
- Continuous Processes
- Irreversible processes
- Extended restart times
Key Considerations for System RedundanciesWhile there are many benefits to redundant systems, there are a few considerations that need to be addressed and taken into account. Depending on the system, there may be many considerations to make, but some are, of course, basic.
- Additional equipment
- Cost consideration
- Increased complexity
What could happen without redundancyThe industrial world is moving towards smart practices and solutions, which help identify and eliminate the causes of problems and breakdowns before they occur. Different strategies are being implemented, redundancy being one of them. Some of the consequences of not using redundancy can be product loss, increased system failures, and increased operating costs.
- Loss of Complete Products or Processes
- Increase in breakdowns
- Unavailability of spare parts
- Increased operating costs