PLC: Switches, Circuits, and Basic Functions--Addressing

Part 8 of the Switches, Circuits, and Basic Functions Series explores addressing, addressing schemes, and coding to properly configure and programmable logic controller.

  • Every brand addressing different

  • Even within brands models change

  • There is no common way of addressing

  • Addresses change form city to city

  • Inputs – outputs, timers counters, memory all have addressing from brand to brand.

  • Very important for connecting up operator interfaces.

  • CPU

  • Go over CPU’s and backplane

  • This is where commands are stored and executed

  • This is the main brain where all the action is

  • You have to write some code for this to work.

  • World revolves around the CPU

  • Also where we store Number and text items

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