How does a redundant controller comes in line when the main
controller fails??
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Answer Posted / janani murugesan
As my point of view , here we have two controllers, one is working controller, another one is standby controller. the standby controller is called as the redundant controller. the redundant controller also have a capacity like working controller. actually here we feed the logic to DCS for when the working controller will be failure, the standby controller automatically will be started. so here we put standby controller into auto mode in DCS. so when the working controller is trip or any cable damage or other failure, the redundant (standby) controller is automatically in line.
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