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What is the control theory of PLCs (programmable logic controller)?

PLCs fall in category of linear control or non linear control?

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closed as too broad by RoyC, JYelton, Scott Seidman, Oleg Mazurov, Simon B Aug 21 at 10:09

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  • \$\begingroup\$ Far too broad a question. \$\endgroup\$ – Chu Aug 20 at 13:36
  • \$\begingroup\$ "PLC" is just another name for "digital computer", so what do you think? \$\endgroup\$ – Dave Tweed Aug 20 at 13:36
  • \$\begingroup\$ They're programmable so you can use whatever theory you want. \$\endgroup\$ – Transistor Aug 20 at 13:58
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A programmable logic controller does what you tell it to. So you can make it implement a linear control rule, or you can make it implement a non-linear control rule.

By itself, a PLC isn't described by one control theory or another.

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