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Programmable controllers : an engineer's guide
Parr, E. A
اطلاعات کتابشناختی
Programmable controllers : an engineer's guide
Author :
Parr, E. A
Publisher :
Newnes,
Pub. Year :
2003
Subjects :
Programmable controllers.
Call Number :
TJ 223 .P76 .P37 2003
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Contents
(5)
Preface
(11)
1 Computers and industrial control
(13)
1.1 Introduction
(13)
1.2 Types of control strategies
(13)
1.2.1 Monitoring subsystems
(14)
1.2.2 Sequencing subsystems
(14)
1.2.3 Closed loop control subsystems
(16)
1.2.4 Control devices
(17)
1.3 Enter the computer
(18)
1.3.1 Computer architectures
(19)
1.3.2 Machine code and assembly language programming
(23)
1.3.3 High level languages
(23)
1.3.4 Application programs
(26)
1.3.5 Requirements for industrial control
(26)
1.3.6 The programmable controller
(30)
1.4 Input/output connections
(33)
1.4.1 Input cards
(33)
1.4.2 Output connections
(34)
1.4.3 Input/output identification
(40)
1.5 Remote I/O
(41)
1.6 The advantages of PLC control
(43)
2 Programming techniques
(45)
2.1 Introduction
(45)
2.2 The program scan
(48)
2.3 Identification of input/output and bit addresses
(52)
2.3.1 Racks, cards and signals
(52)
2.3.2 Allen Bradley PLC-5
(53)
2.3.3 Siemens SIMATIC S5
(54)
2.3.4 CEGELEC GEM-80
(54)
2.3.5 ABB Master
(57)
2.3.6 Mitsubishi F2
(59)
2.3.7 Internal bit storage
(60)
2.4 Programming methods
(60)
2.4.1 Introduction
(60)
2.4.2 Ladder diagrams
(61)
2.4.3 Logic symbols
(64)
2.4.4 Statement list
(67)
2.5 Bit storage
(70)
2.6 Timers
(75)
2.7 Counters
(79)
2.8 Numerical applications
(84)
2.8.1 Numeric representations
(84)
2.8.2 Data movement
(87)
2.8.3 Data comparison
(89)
2.8.4 Arithmetical operations
(90)
2.9 Combinational and event-driven logic
(93)
2.9.1 Combinational logic
(93)
2.9.2 Event-driven logic
(98)
2.10 Micro PLCs
(107)
2.11 IEC 1131-3, towards a common standard
(111)
2.12 Programming software
(117)
2.13 Programming software tools
(121)
3 Programming style
(127)
3.1 Introduction
(127)
3.2 Software engineering
(128)
3.3 Top-down design
(130)
3.4 Program structure in various PLCs
(131)
3.5 Housekeeping and good software practice
(140)
3.6 Speeding up the PLC scan time
(147)
4 Analog signals, closed loop control and intelligent modules
(152)
4.1 Introduction
(152)
4.2 Common analog signals
(152)
4.2.1 Temperature
(152)
4.2.2 Pressure
(154)
4.2.3 Flow
(156)
4.2.4 Speed
(158)
4.2.5 Weighing systems
(158)
4.2.6 Level
(159)
4.2.7 Position
(160)
4.2.8 Output signals
(161)
4.3 Signals and standards
(161)
4.4 Analog interfacing
(163)
4.4.1 Resolution
(163)
4.4.2 Multiplexed inputs
(164)
4.4.3 Conversion times
(165)
4.4.4 Channel selection and conversion to engineering units
(168)
4.4.5 Analog input cards
(170)
4.4.6 Filtering
(172)
4.5 Analog output signals
(172)
4.6 Analog-related program functions
(175)
4.7 Closed loop control
(176)
4.7.1 Introduction to control theory
(176)
4.7.2 Stability and loop tuning
(179)
4.7.3 Closed loop control and PLCs
(180)
4.8 Specialist control processors
(184)
4.9 Bar codes
(185)
4.10 High-speed counters
(190)
4.11 Intelligent modules
(190)
4.12 Installation notes
(191)
5 Distributed systems
(194)
5.1 Parallel and serial communications
(194)
5.2 Serial standards
(197)
5.2.1 Introduction
(197)
5.2.2 Synchronization
(197)
5.2.3 Character codes
(198)
5.2.4 Transmission rates
(198)
5.2.5 Modulation of digital signals
(201)
5.2.6 Standards and protocols
(203)
5.2.7 Error control
(208)
5.2.8 Point to point communication
(214)
5.3 Area networks
(217)
5.3.1 Introduction
(217)
5.3.2 Transmission lines
(217)
5.3.3 Network topologies
(219)
5.3.4 Network sharing
(221)
5.3.5 A communication hierarchy
(222)
5.4 The ISO/OSI model
(224)
5.5 Proprietary systems
(226)
5.5.1 Introduction
(226)
5.5.2 Allen Bradley Data Highway
(227)
5.5.3 Gem-80 Starnet, ESP and CORONET
(229)
5.5.4 Siemens SINEC
(230)
5.5.5 Ethernet
(230)
5.5.6 Towards standardization
(231)
5.5.7 Profibus
(235)
5.6 Safety and practical considerations
(236)
5.7 Fibre optics
(239)
6 The man–machine interface
6.1 Introduction
(244)
6.2 Simple digital control and indicators
(246)
6.3 Numerical outputs and inputs
(248)
6.3.1 Numerical outputs
(248)
6.3.2 Multiplexed outputs
(249)
6.3.3 Leading zero suppression
(252)
6.3.4 Numerical inputs
(252)
6.4 Alarm annunciation
(254)
6.5 Analog indication
(259)
6.6 Computer graphics
(262)
6.6.1 Introduction
(262)
6.6.2 The Allen Bradley Panelview
(266)
6.6.3 Pixel graphics; the CEGELEC Imagem
(268)
6.6.4 The Siemens Simatic HMI family
(277)
6.6.5 Practical considerations
(279)
6.6.6 Data entry
(282)
6.7 Message displays
(283)
6.8 SCADA packages
(283)
7 Industrial control with conventional computers
(288)
7.1 Introduction
(288)
7.2 Bus-based machines
(289)
7.2.1 Introduction
(289)
7.2.2 IEEE-488 parallel interface bus
(290)
7.2.3 Backplane bus systems
(293)
7.2.4 IBM PC clones
(294)
7.3 Programming for real time control
(297)
7.4 Soft PLCs
(304)
8 Practical aspects
(305)
8.1 Introduction
(305)
8.2 Safety
(305)
8.2.1 Introduction
(305)
8.2.2 Risk assessment
(306)
8.2.3 PLCs, computers and safety
(308)
8.2.4 Emergency stops
(320)
8.2.5 Guarding
(324)
8.2.6 Safety legislation
(326)
8.2.7 IEC 61508
(327)
8.3 Design criteria
(332)
8.4 Constructional notes
(334)
8.4.1 Power supplies
(334)
8.4.2 Equipment protection
(337)
8.5 Maintenance and fault finding
(343)
8.5.1 Introduction
(343)
8.5.2 Statistical representation of reliability
(344)
8.5.3 Maintenance philosophies
(347)
8.5.4 Designing for faults
(349)
8.5.5 Documentation
(351)
8.5.6 Training
(356)
8.5.7 Fault-finding aids, EDDI and FlMs
(360)
8.6 Electromagnetic compatibility (EMC) and CE marking
(366)
Table 8.7
(369)
8.7 Other programmable devices
(371)
9 Sample ladder logic
(374)
9.1 Introduction
(374)
9.2 One Shot
(376)
9.3 Toggle action
(377)
9.4 Alarm annunciator
(380)
9.5 First order filter
(382)
9.6 Level control
(385)
9.7 Linearization
(392)
9.8 Flow totalization
(397)
9.9 Scaling
(403)
9.10 Gray code conversion
(406)
9.11 BCD to Binary conversion
(410)
9.12 Binary to BCD conversion
(412)
9.13 A hydraulic system
(415)
Appendix Number systems
(428)
Index
(433)
