EET 231 U2 Exam Latest Updated Questions and Answers 100% Correct; ECPI University

EET 231 U2 Exam Latest Updated Questions and Answers 100% Correct; ECPI University EET 231 U2 Exam Latest Updated Questions and Answers 100% Correct; ECPI University If your PLC does not have enough input connections to handle the process you are using you need to scale back the process to divide the process between two PLCs to modify the output module to accept inputs to install an expansion module Solenoids, Contactors and Lamps are usually connected to Input Modules CPU modules Communication Modules Output Modules Question 3 4 / 4 pts Programmable Logic controllers uses relays to store the value of the input signals. True False The is the most commonly used programming device for a PLC hand-held programmer PLC keyboard interface USB thumb drive personal computer The type of memory that can be read from but not written to is called: RAM ROM Flash Relay If you wanted to know when the input bits on two different discrete inputs were on you would use the logic instruction And Or XOR NAND The main output symbol for a PLC Ladder Logic is the Control Relay Switch Coil Vacuum Tube What are the four main parts of a PLC? Input, Output, CPU and Power I/O, Communications, Processing and Memory Memory, Hardware, Software and Control Relays, Switches, Motors and CPU Most PLCs use what digital voltage for their input and output rails 5 VDC 110 VAC 24 VDC 48 VAC Which of the following would be considered an input device? fluid fill valve physical limit switch Emergency status light DC Motor The component that monitors inputs and makes decisions for the PLC is the: CPU module Communication module Input Module Memory Module PLCs were invented by Rockwell Corporation True False IF you are using a current sinking DC input module: Current flows out of the input module Current flows into the input module Current alternates into and out of the module none of the above The main part of a PLC that controls what the PLC does is the microprocessor True False The input interface module: allows the user to input a program connects the CPU to signals from the process memory allows the CPU to input messages from the PLC touch screen provides inputs from the field sensors and switches The main input symbol for a PLC Ladder Logic is the Control Relay Switch Coil Vacuum Tube In general, addressing elements include: processor, memory and communications circuitry type, slot, word and bit rack, slot, and connection input/output, voltage level, analog/digital All PLCs are powered using a three phase power source. True False PLCs are used in industrial applications because? They are mandated by the Automation Manufacturing Regulatory Agency They are immune to earthquakes They are ruggedized to withstand industrial environments They are cheaper than relay logic Which of the following functions primarily as an input device Motor Valve Light Pressure Sensor Scan time refers to The time it takes for the PLC to read a bar code The time it takes for the PLC to scan the input field devices The time it takes for the PLC program to execute to completion The time it takes for the PLC to scan the input modules, execute the program once and update the output modules. What does PLC stand for? Physical Logic Connector Process Loading Controls Programmable Logic Controller Programmable Linking Connector Which of the following is a task that a PLC is NOT capable of performing? Timing Counting Directly switching large motors Comparing All field devices must be powered using the PLC supplied power. True False Ladder logic was based on what type of solid state logic? Relay Logic Switching Logic Discrete Logic Controllor Logic Quiz Score: 100 out of 100