A
I have read the following in some article regarding the difference between redundancy and Fault tolerance.
"
The goal of Redundancy is, by using duplicated equipment, to improve the availability of station. Here primary will be active and secondary will be idle.
However the goal of Fault tolerance is, by using duplicated equipment, to improve the availability of station and also to Eliminate bad signals going to the field due to hardware failure. Here both the primary & secondary will be processing logic under normal conditions."
I would like to know for which industries/process applications, the fault tolerance concept is must for main control systems when compare to redundancy concept(I am aware that for ESD systems, Fault tolerance concept is better and is implemented in most of ESD systems).
Also which control system vendor has this fault tolerance concept implemented in their system/controllers? I have come across many vendors who uses redundancy concept in their controllers.
"
The goal of Redundancy is, by using duplicated equipment, to improve the availability of station. Here primary will be active and secondary will be idle.
However the goal of Fault tolerance is, by using duplicated equipment, to improve the availability of station and also to Eliminate bad signals going to the field due to hardware failure. Here both the primary & secondary will be processing logic under normal conditions."
I would like to know for which industries/process applications, the fault tolerance concept is must for main control systems when compare to redundancy concept(I am aware that for ESD systems, Fault tolerance concept is better and is implemented in most of ESD systems).
Also which control system vendor has this fault tolerance concept implemented in their system/controllers? I have come across many vendors who uses redundancy concept in their controllers.