المصدر: كتاب: Basics of PLCs في منتدى : قسم تبادل الخبرات الهندسية Basics of PLCs Table of Contents Introduction ..............................................................................2 PLCs .........................................................................................4 Number Systems ......................................................................8 Terminology ............................................................................ 14 Basic Requirements ................................................................23 S7-200 Micro PLCs .................................................................28 Connecting External Devices ..................................................39 Programming a PLC ................................................................41 Discrete Inputs/Outputs .........................................................49 Analog Inputs and Outputs .....................................................61 Timers .....................................................................................64 Counters ................................................................................. 71 High-Speed Instructions .........................................................75 Specialized Expansion Modules .............................................78 Review Answers .....................................................................84 Final Exam ..............................................................................85 حمل اجزاء من المرفقات بالتوفيق
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