Programmable Controllers: Theory and Implementation

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Introduction to PLC Programming and Implementation—from relay logic to PLC logicL1L2PB1PS1TMR13 secTMR1FS1TS1SOL1CR1TMR1CR1LS1SOL2CR2CR1TMR22 secCR3TMR2PS2CR3SOL3Figure 7. Circuit for problem 25.26 Given that the stop push button will be wired as normally open, use the circuit inFigure 8 to:(a) assign the I/O addresses(b) draw the I/O connection diagramL1ForStop Rev R M1FAll OLsL2M1For PL1FM2RM2Rev PL2Figure 8. Circuit for problem 26.Industrial Text & Video Company www.industrialtext.com 1-800-752-839860
Introduction to PLC Programming and Implementation—from relay logic to PLC logic27 Circle the locations where timer traps will be used in the PLC implementation of thecircuit in Figure 9.L1123StopTR1StartTR1TR1S1TR1M1L2OL4M1TR1S156S1S2S2Figure 9. Circuit for problem 27.28 Figure 10 shows a variable speed drive that is manually controlled by an operatorstation. What input field devices are required for the PLC implementation of thisstation?SpeedPotentiometerTB-112Adjust+12 VTo Speed RegulatorForward34ForwardCommon (Controller)Reverse5ReverseChassisGround6CR1StartRun7CR1StopOLJog8Spare115VACOLOL9SpareField10DriveFigure 10. Variable speed drive.Industrial Text & Video Company www.industrialtext.com 1-800-752-839861
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Programmable Controllers: Workbook/
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Programmable Controllers: Theory and Implementation

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