Introduction to Industrial Automation

Index 

◾

 

427

Broadband cable, 363

Buchholz device, 108, 109

Bus topology, industrial networks of PLCs, 359, 359f

Buttons, as input devices, 205

C

Cables, electromagnetic shielding of, PLC installation, 

251–252, 252f

Calorimetric flow switch, 57–58

Cam timers, 67–69

CAN (controller area network), 364n

Canceling ability, machine with, 98–100

Capacitive level switches, 53–54

Capacitive proximity switches, 40, 42, 43

Carrier sense multiple access with collision detection 

(CSMA/CD) protocol, 360–361, 361f

Cascade ladder diagram language (ladder), 198, 198f

Central processing unit (CPU), PLC, 225–233, 226f

communication operations, 226

EEPROM, 232

EPROM, 231

executable program, 225

I/O operations, 226

I/Os and other internal elements, 232–233, 233f

logical and arithmetic operations, 226

memory organization, 227–231, 228f, 230f

memory types, 231–232

microprocessor, 225–226, 227f

address bus, 226, 226f

components, 226–227, 227f

data bus, 226, 226f

operating system, 225–226

operations, 226

RAM, 231

reading, writing, and special handling operations, 226

ROM, 231

Chain latch, 93, 94f

Chamber furnace, heat treatment process in, 396–397, 

397f

Changeover contact, defined, 33, 34

Changeover two-way contact, 30

Channels, defined, 74

Chemical cleaning process, of metallic objects, 392–393, 

393f

Chemical process automation in reactor, 143–145

Circuit(s)

automation, see Automation circuits

breakers, 71

for electro-pneumatic automation, 175–178

oscillating, 54

power, 10–11, 26

Classical industrial automation system, 194–195, 196f

vs. PLC, 194–195, 196f

Classical state diagrams, 121–124

Closed-loop control system, stepper motor control 

module, 224, 224f

Coaxial cable, as data transmission media, 362–363

Coils of electro-pneumatic valves, 211

Cold junction, defined, 60

Color-based separation, of plastic balls, 399, 401f

Command(s)

operation of two machines with

common automatic, 90

common manual, 89–90

separate automatic, 89–90

separate manual, 90

principle of, 81–82

Common terminal, defined, 33

Communication modules, PLC, 225

Communication networks, 356; see also Industrial 

networks, of PLCs

Communication processor (CP), 225

Communication protocols, industrial networks of PLCs, 

359–360

carrier sense multiple access with collision detection 

(CSMA/CD) protocol, 360–361, 361f

Master/Slave protocol, 360, 360f

token passing method of access, 361–362, 362f

Communication task, of PLCs, 365–367, 366f

Communication units (CPs), 236

Compact form PLC, 200, 201f

Comparison instructions, PLC programming, 291, 291f

Complementary instructions, PLC programming, 

290–292, 290f, 291f

Component-based state diagram, 135–137, 139–140

Compression tank, defined, 161

Compressors, pneumatic, 161

Computer-based industrial control, automation and, 

13–18

Computer integrated manufacturing (CIM) model, 16, 

17f, 18

Conductive liquids, electronic level switches for, 52–53

Controller area network (CAN), 364n

Control(s)

machine operation, from multiple positions, 107, 

108f

panel, for operating n machines, 91

of power transformer, operation, 108–109, 110f

Control system, industrial, 1–6

circuits, 11

computer-based, automation and, 13–18

process

automation and, 6–8

hardware components for, see Hardware 

components

Control valves, pressurized air flow, 167–174

directional valves, 167–168, 169f, 169t, 170f, 171t

electrical actuation, 170, 172–173

manual actuation, 168, 170, 172f

mechanical actuation, 170, 172f

pneumatic actuation, 174

Converters, as input devices, 205

Conveyor arrangement for objects shorting, 181–183

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428