The complex control functions of PLCs
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Can PLCs, in addition to single-loop control, implement complex controls such as cascade control and segmented control?
Do small PLCs like the S7-200 lack capabilities for complex control? Are there any requirements for the hardware configuration of a PLC to achieve complex control? Could you specify the exact requirements?
Whether it is a simple circuit or a complex one, it depends on the number of circuits involved; this places demands on the CPU’s processing capabilities, whether it is an S7200 or a 300. Therefore, it is necessary to check the number of circuits that the CPU can handle.
Well, a single-loop system is rather limited; a more complex system is certainly possible, but it’s hard to say whether it can be controlled properly.