MECT444Programmable language controller 2. Design a PLC program and prepare a typical I/O connection diagram and ladder logic program that willcorrectly execute the hardwired control circuit shown below.L1L2FWDStopREVРВ ЗPB1PB 2R-1OLPL1F-2F-1PL2R-2Assume: PB1 pushbutton used is an NC type. PB2 and PB3 are each wired using one set of NO contacts. OLcontact is hardwired.3. Three motors (M1, M2 and M3) will be run in a system. Two start (NO) and one stop (NC) button will be usedto operate the system. When the first start button is pressed, the first motor (M1) and the second motor (M2) willstart to run, but when the first start button is released the first motor (M1) will stop and the second motor (M2)will continue to run. When the second start button is pressed, the third motor (M3) will start to run, but even ifthe second start button is pressed before the second motor (M2) is running, the third motor (M3) will not be ableto start. The system will be stopped at any time with the stop button.Design a PLC ladder logic program that willcorrectly execute the operation of the three motors.4. Write the PLC ladder program of the periodic operation of a motor (M) that can rotate in right-left directionsaccording to the criteria given below. The engine starts with the Start button (NO), and stops at any time with theStop button (NC).(Turn right 5 seconds, stop 3 seconds, turn left 5 seconds and stop 3 seconds)

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2. Design a PLC program and prepare a typical I/O connection diagram and ladder logic program that will correctly execute the hardwired control circuit shown below. L1 L2 FWD Stop REV PB 3 PB1 PB 2 R-1 OL elo PL1 F-2 F-1

2. Design a PLC program and prepare a typical I/O connection diagram and ladder logic program that will correctly execute the hardwired control circuit shown below. L1 L2 FWD Stop REV PB 3 PB1 PB 2 R-1 OL elo PL1 F-2 F-1

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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