Description
GE IS200PMCIH1ABA Analogue Input Cards
The same programme running in the main PLC of the GE IS200PMCIH1ABA is also in standby, but not started. In addition, there is no communication cable connected to it. Therefore, it can be considered as a standby PLC, waiting to be put into operation in case the main PLC fails. As long as you need a backup system when the primary system fails. Remember, immediately put the primary system back into operation and either repair it or replace it. Once the primary system is back up and running again, when the backup system fails, the primary system will take over again and the cycle repeats.
Now, when the primary PLC fails, the operator will shut down the system, connect the cable to the standby PLC and power it up. The standby PLC will now control the process. This system is called cold standby. When there is a sudden interruption, it takes a long time for the system to return to normal operation. Therefore, a cold standby system is useful where the process is non-critical and some downtime is tolerable.
The GE IS200PMCIH1ABA will immediately become the master and take over the process. It happens in microseconds. This process is called hot standby. It’s a redundancy method that runs an identical backup system that continually bounces data back up to super-fast speeds; therefore, in the event of a system failure, both sites have the same data and can still provide optimal quality when the primary system is restored.
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