Programmable Controllers: Theory and Implementation
Programmable Controllers: Theory and Implementation
Programmable Controllers: Theory and Implementation
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Introduction to PLC Programming <strong>and</strong> <strong>Implementation</strong>—from relay logic to PLC logic26 (a)ModuleTypeRackI/O AddressGroupTerminalDescriptionInput0 0 0 Stop PB (wired NC)0 0 1 Forward PB (wired NO)0 0 2 Reverse PB (wired NO)0 0 3 Overload contactsInput0 0 4 Acknowledge OL/Reset PB• • •• • •• • •Output0 3 0 Motor starter M1 (FWD)0 3 1 Forward PL10 3 2 Motor starter M2 (REV)0 3 3 Reverse PL2(b)L1L2L1L2Stop000000 001 002 032030030MOL1Reverse030001Forward002000 001 002031030000 002 001 030032032031032Fwd PL1M2ROL2000 002 001033 Rev PL2033032Industrial Text & Video Company www.industrialtext.com 1-800-752-839869
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