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PLC Exam Questions and Practice Guide by S. Magidi is a document available to read on EtoBox.

What is PLC Exam Questions and Practice Guide about?

A PLC has an internal architecture designed to withstand industrial environments, while a PC is designed for general computing. A PLC performs a self-check at startup to ensure proper operation. The ladder logic diagram shown has an error - if used, the circuit would always be energized since rungs are not properly arranged. Some PLCs clear memory when the battery is removed to erase any programmed logic. END

Author

S. Magidi

Language

EN