Programmable Controllers: Theory and Implementation

Introduction to PLC Programming and Implementation—from relay logic to PLC logicLS14SS3PS1CR10CR10CR10SS4SOL7S4LS15Figure 5. Circuit for problem 20.23 Explain why the hardwired circuit in Figure 6 must be reconfigured when it istranslated into a PLC ladder diagram.1L1LS1CR1L2SOL1SEL1SOL223PB1CR14PB2PB3M1Figure 6. Circuit for problem 23.24 Program _____________________ is the process of translating logic or relay contactdiagrams into PLC ladder form.25 Assuming that inputs use addresses 000–027, outputs use addresses 030–047,internals start at address 100 8, timers start at address 200 8, and an internal outputis used to trap the instantaneous timer contacts, use the circuit shown in Figure 7to:(a) assign the internal addresses(b) assign the I/O addresses(c) draw the I/O connection diagramIndustrial Text & Video Company www.industrialtext.com 1-800-752-839859