PLC Exam Questions and 100% Verified Correct Answers

PLC Exam Questions and 100% Verified Correct Answers What are the major parts of a plc? - Correct Answer The CPU, I/O, power supply, and programming device Architecture - Correct Answer Refers to PLC hardware or software Open architecture - Correct Answer Allows the system to be connected easily to devices and programs made by other manufacturers Closed architecture - Correct Answer A system whose design is proprietary making it difficult to connect to other systems Fixed I/O - Correct Answer Small PLC that comes in one package with not separate removable units. The processor and I/O are packaged together Modular I/O - Correct Answer A PLC that is divided by compartments into which separate modules can be plugged Power supply - Correct Answer Provides DC power to all modules that plug into the rack CPU or processor - Correct Answer A microprocessor for implementing the logic and controlling the communications among the modules PLC scan cycle - Correct Answer Reads inputs -> executes program -> diagnostics & communication -> updates outputs I/O (Input/Output) system - Correct Answer Forms the interface by which field devices are connected to the controller. I/O (Input/Output) system - Correct Answer Forms the interface by which field devices are connected to the controller Programming device - Correct Answer Used to enter the desired program into the memory of the processor Personal computer