Automation
What is Hot Standby?
Definition
A redundancy configuration where a backup system runs continuously and takes over instantly if the primary system fails. Hot standby is used in critical PLC and communication systems where even brief downtime is unacceptable.
Related Terms
Redundancy
The duplication of critical components or systems to ensure continued operation ...
Fail-Safe
A design principle ensuring that equipment defaults to a safe condition when a f...
UPS (Uninterruptible Power Supply)
A device that provides backup power during mains outages using stored battery en...
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