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Programmable Logic Controllers

ISBN: 9780028026619 | 0028026616
Edition: 2nd
Format: Hardcover
Publisher: McGraw-Hill Science/Engineering/Math
Pub. Date: 1/6/1997

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SummaryTable of Contents
This outstanding text for the first course in programmable logic controllers (PLCs) focuses on how PLCs work and gives students practical information about installing, programming, and maintaining PLC systems. It's not intended to replace manufacturer's or user's manuals, but rather complements and expands on the information contained in these materials. All topics are covered in small segments. Students systematically carry out a wide range of generic programming exercises and assignments.
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Prefaceviii
Chapter 1 Programmable Logic Controllers (PLCs): An Overview
2(16)
1-1 Programmable Logic Controllers
4(1)
1-2 Parts of a PLC
5(4)
1-3 Principles of Operation
9(3)
1-4 Modifying the Operation
12(1)
1-5 PLCs Versus Computers
13(1)
1-6 PLC size and Application
14(2)
Review Questions
16(1)
Problems
17(1)
Chapter 2 PLC Hardware Components
18(30)
2-1 The I/O Section
20(4)
2-2 Discrete I/O Modules
24(6)
2-3 Analog I/O Modules
30(1)
2-4 Special I/O Modules
31(1)
2-5 I/O Specifications
32(1)
2-6 The CPU
33(3)
2-7 Memory Design
36(1)
2-8 Memory Types
37(2)
2-9 Programming Devices
39(3)
2-10 Recording and Retrieving Data
42(1)
2-11 PLC Workstations
43(1)
Review Questions
44(3)
Problems
47(1)
Chapter 3 Number Systems and Codes
48(22)
3-1 Decimal System
50(1)
3-2 Binary System
50(2)
3-3 Negative Numbers
52(1)
3-4 Octal System
52(1)
3-5 Hexadecimal System
53(1)
3-6 BCD System
54(1)
3-7 Gray Code
55(1)
3-8 ASCII Code
56(1)
3-9 Encoding and Decoding
57(1)
3-10 Parity Bit
57(1)
3-11 Binary Arithmetic
58(8)
Review Questions
66(2)
Problems
68(2)
Chapter 4 Fundamentals of Logic
70(22)
4-1 The Binary Concept
72(1)
4-2 AND, OR, and NOT Functions
72(4)
4-3 Boolean Algebra
76(3)
4-4 Developing Circuits from Boolean Expressions
79(1)
4-5 Producing the Boolean Equation from a Given Circuit
79(1)
4-6 Hard-Wired Logic Versus Programmed Logic
80(6)
4-7 Programming Word-Level Logic Instructions
86(2)
Review Questions
88(1)
Problems
89(3)
Chapter 5 Basics of PLC Programming
92(28)
5-1 Processor Memory Organization
94(4)
5-2 Program Scan
98(3)
5-3 PLC Programming Languages
101(4)
5-4 Relay-Type Instructions
105(2)
5-5 Instruction Addressing
107(1)
5-6 Branch Instructions
108(4)
5-7 Internal Relay Instructions
112(1)
5-8 Programming EXAMINE IF CLOSED and EXAMINE IF OPEN Instructions
112(2)
5-9 Entering the Ladder Diagram
114(1)
5-10 Modes of Operation
115(1)
Review Questions
116(1)
Problems
117(3)
Chapter 6 Developing Fundamental PLC Wiring Diagrams and Ladder Logic Programs
120(44)
6-1 Electromagnetic Control Relays
122(1)
6-2 Contactors
123(2)
6-3 Motor Starters
125(1)
6-4 Manually Operated Switches
126(2)
6-5 Mechanically Operated Switches
128(2)
6-6 Transducers and Sensors
130(13)
6-7 Output Control Devices
143(2)
6-8 Seal-In Circuits
145(1)
6-9 Latching Relays
146(3)
6-10 Converting Relay Ladder Diagrams into PLC Ladder Programs
149(4)
6-11 Writing a Ladder Logic Diagram Directly from a Narrative Description
153(5)
Review Questions
158(2)
Problems
160(4)
Chapter 7 Programming Timers
164(32)
7-1 Mechanical Timing Relay
166(1)
7-2 Timer Instructions
167(3)
7-3 On-Delay Timer Instruction
170(6)
7-4 Off-Delay Timer Instruction
176(2)
7-5 Retentive Timer
178(4)
7-6 Cascading Timers
182(6)
Review Questions
188(1)
Problems
189(7)
Chapter 8 Programming Counters
196(32)
8-1 Counter Instructions
198(3)
8-2 Up-Counter
201(5)
8-3 Down-Counter
206(5)
8-4 Cascading Counters
211(3)
8-5 Incremental Encoder-Counter Applications
214(2)
8-6 Combining Counter and Timer Functions
216(4)
Review Questions
220(1)
Problems
221(7)
Chapter 9 Program Control Instructions
228(28)
9-1 Master Control and Zone Control Instructions
230(2)
9-2 Jump Instructions and Subroutines
232(7)
9-3 Immediate Input and Immediate Output Instructions
239(2)
9-4 Forcing External I/O Addresses
241(3)
9-5 Safety Circuitry
244(3)
9-6 Selectable Timed Interrupt
247(1)
9-7 Fault Routine
248(1)
9-8 Temporary End (TND) Instruction
249(1)
Review Questions
250(1)
Problems
251(5)
Chapter 10 Data Manipulation Instructions
256(42)
10-1 Data Manipulation
258(1)
10-2 Data Transfer Operations
259(12)
10-3 Data Compare Instructions
271(7)
10-4 Data Manipulation Programs
278(5)
10-5 Numerical Data I/O Interfaces
283(4)
10-6 Set-Point Control
287(5)
Review Questions
292(2)
Problems
294(4)
Chapter 11 Math Instructions
298(24)
11-1 Math Instructions
300(1)
11-2 Addition Instruction
300(1)
11-3 Subtraction Instruction
301(3)
11-4 Multiplication Instruction
304(2)
11-5 Division Instruction
306(4)
11-6 Other Word Level Math Instructions
310(1)
11-7 File Arithmetic Operations
311(3)
Review Questions
314(4)
Problems
318(4)
Chapter 12 Sequencer and Shift Register Instructions
322(28)
12-1 Mechanical Sequencers
324(1)
12-2 Sequencer Instructions
325(5)
12-3 Sequencer Programs
330(7)
12-4 Shift Registers
337(5)
12-5 Word Shift Registers
342(4)
Review Questions
346(1)
Problems
347(3)
Chapter 13 PLC Installation Practices, Editing, and Troubleshooting
350(24)
13-1 PLC Enclosures
352(1)
13-2 Electrical Noise
353(2)
13-3 Leaky Inputs and Outputs
355(1)
13-4 Grounding
356(1)
13-5 Voltage Variations and Surges
357(1)
13-6 Program Editing
358(1)
13-7 Programming and Monitoring
359(2)
13-8 Preventive Maintenance
361(1)
13-9 Troubleshooting
361(9)
Review Questions
370(1)
Problems
370(4)
Chapter 14 Process Control and Data Acquisition Systems
374(25)
14-1 Types of Processes
376(3)
14-2 Structure of Control Systems
379(4)
14-3 Controllers
383(7)
14-4 Data Acquisition Systems
390(8)
Review Questions
398(1)
Problems
399(1)
Chapter 15 Computer-Controlled Machines and Processes
399(28)
15-1 Computer Fundamentals
402(7)
15-2 Computer-Integrated Manufacturing
409(2)
15-3 Data Communications
411(4)
15-4 Computer Numerical Control (CNC)
415(4)
15-5 Robotics
419(5)
Review Questions
424(1)
Problems
425(2)
Glossary427(23)
Index450

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