As control system professionals, it is in our interest to ensure our measurement and control systems are secure from unauthorized…
As digital technology finds greater application in industrial measurement and control systems, these systems become subject to digital vulnerabilities. Cyber-security,…
The Mean time between failures (MTBF) of any system dependent upon certain critical components may be extended by duplicating those…
As an example of a split-ranged system with opposite valve failure modes, consider the following temperature control system supplying either…
How does a Redundant Controller comes in line when the Main Controller fails in the distributed control system (DCS)? The…
Override control strategies are a source of much confusion for people who first learning the concept. Perhaps the most fundamental…
Let us discuss a steam-heated reactor control system with a cascade strategy, where the temperature controller drives a setpoint signal…
The direction of action for a loop controller – either direct or reverse – at first seems like a very…
An “override” control strategy involves a selection between two or more controller output signals, where only one controller at a…
In the broadest sense, a “selector” control strategy is where one signal is selected from multiple signals in a system…
