PLC TEST 1 REVIEW 100% ACCURATE  

Identify the main function of a power supply module. - ANSWERIts supplies DC power to other modules. What is a programmable logic controller (PLC)? - ANSWERA PLC IS A specialized computer used to control machines and process. Identify the main function of a programmable device. - ANSWERIt is used to enter the desired program into the memory of the processor. Identify the main function of I/O modules. - ANSWERThey form the interface by which field devices are connected to the controller. Identify the standard programming language used with PLCs. - ANSWERRLL (Relay Ladder Logic) Identify the main function of processor module (CPU). - ANSWERIt accepts input data from sensing devices, executes the stored user program from memory, and sends appropriate output commands to control devices. What do the individual symbols represent with reference to the process control PLC ladder logic diagram in the given figure? - ANSWERInstructions What field device is the number O/1 in the given figure identified with? - ANSWERMotor