Description
OP362-LD/-5200 Cold Backup Mode Operation
When the OP362-LD/-5200 is operated in the cold backup mode, the cold backup system does not run, and it cuts into the backup system only after self-diagnostics detects a fault in the operating system. For PLCs, the scope of the redundancy system is mainly the CPU, the storage unit, the power supply system, and the communication system, and redundancy of the input and output units, etc. is included only when the reliability requirements are very high.
Degraded operation of OP362-LD/-5200 is a design that includes manual operation. Examples include the design of emergency stops, and the design of start-stop and restart functions for critical equipment. In this way, in the event of a failure, degraded operation can be used, i.e., manual start-stop operation of some or all of the equipment to avoid damage to the equipment or injury to personnel. In addition, the design can also be considered from full-automatic to semi-automatic, up to manual operation.