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Area: 351: Control technology           Index language:

Hide details for [<u>Section 351-41: Variables and signals</u>]Section 351-41: Variables and signals
351-41-01
variable quantity
351-41-02
actual value
351-41-03
desired value
351-41-04
deviation
351-41-05
vector of variables
351-41-06
input variable
351-41-07
output variable
351-41-08
state variable
351-41-09
state space
351-41-10
trajectory
351-41-11
continuous-value variable
351-41-12
discrete-value variable
351-41-13
quantize, verb
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binary variable
351-41-15
continuous-time variable
351-41-16
discrete-time variable
351-41-17
signal
351-41-18
information parameter
351-41-19
continuous-value signal
351-41-20
discrete-value signal
351-41-21
binary signal
351-41-22
continuous-time signal
351-41-23
discrete-time signal
351-41-24
analog signal
351-41-25
digital signal
351-41-26
sampled signal
351-41-27
white noise
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aliasing
Hide details for [<u>Section 351-42: General concepts</u>]Section 351-42: General concepts
351-42-01
state equation
351-42-02
output equation
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input matrix
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output matrix
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direct input-output matrix
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system matrix
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transition matrix
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system
351-42-09
structure
351-42-10
system parameter
351-42-11
linear system
351-42-12
linearize, verb
351-42-13
characteristic equation
351-42-14
time-invariant system
351-42-15
multivariable system
351-42-16
distributed-parameter system
351-42-17
minimal-phase system
351-42-18
all-pass system
351-42-19
control
351-42-20
stability
351-42-21
asymptotic stability
351-42-22
controllability
351-42-23
observability
351-42-24
action
351-42-25
interface
351-42-26
model
351-42-27
algorithm
351-42-28
redundancy
351-42-29
manual, adj
351-42-30
automatic, adj
351-42-31
degree of automation
351-42-32
automaton
351-42-33
process, <in control technology>
351-42-34
technical process
351-42-35
plant
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cybernetics
351-42-37
expert system
351-42-38
knowledge base
351-42-39
inference engine
Hide details for [<u>Section 351-43: Tasks/functions in control technology</u>]Section 351-43: Tasks/functions in control technology
351-43-01
measure, verb
351-43-02
count, verb
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monitor, verb
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indicate, verb
351-43-05
notify, verb
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alert, verb
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warn, verb
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alarm, verb
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record, verb
351-43-10
log, verb
351-43-11
archive, verb
351-43-12
manipulate, verb
351-43-13
evaluate, verb
351-43-14
optimize, verb
351-43-15
intervene, verb
351-43-16
safeguard, <equipment> verb
351-43-17
safeguard, <action> verb
351-43-18
lock, verb
351-43-19
structure, verb
351-43-20
configure, verb
351-43-21
parameterize, verb
351-43-22
automate, verb
351-43-23
acknowledge, verb
351-43-24
operate, verb
Hide details for [<u>Section 351-44: Structures of control systems</u>]Section 351-44: Structures of control systems
351-44-01
functional diagram
351-44-02
functional block
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action path
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action line
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direction of action
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summing point
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branching point
351-44-08
serial structure
351-44-09
parallel structure
351-44-10
loop structure
Hide details for [<u>Section 351-45: Behaviour and characteristics of transfer elements</u>]Section 351-45: Behaviour and characteristics of transfer elements
351-45-01
principle of superposition
351-45-02
principle of shifting
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transfer element
351-45-04
linear transfer element
351-45-05
time-invariant transfer element
351-45-06
distributed-parameter transfer element
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identification of a system
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transient behaviour
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time response
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steady state
351-45-11
characteristic curve
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operating point
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saturation
351-45-14
limitation
351-45-15
dead band
351-45-16
hysteresis
351-45-17
reset windup
351-45-18
damping
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damping ratio
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unit impulse
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unit-step function
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unit time ramp
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impulse function
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step function
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ramp function
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impulse response
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step response
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ramp response
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unit-impulse response
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unit-step response
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unit-ramp response
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time constant
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impulse-function sequence
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equivalent dead time
351-45-35
equivalent time constant
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step response time
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settling time
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overshoot
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transfer function
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Z-transfer function
351-45-41
frequency response
351-45-42
gain
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logarithmic gain
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gain response
351-45-45
phase angle
351-45-46
phase response
351-45-47
frequency response characteristic
351-45-48
corner angular frequency
351-45-49
frequency response locus
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describing function
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rational transfer element
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minimal-phase element
351-45-53
all-pass element
351-45-54
controlled system with self-regulation
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controlled system without self-regulation
Hide details for [<u>Section 351-46: Behaviour and characteristics of control systems</u>]Section 351-46: Behaviour and characteristics of control systems
351-46-01
control rise time
351-46-02
control settling time
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open-loop frequency response
351-46-04
gain crossover angular frequency
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phase margin
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phase crossover angular frequency
351-46-07
gain margin
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control factor
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Nichols plot
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root-locus plot
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phase plane analysis
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reference-variable response of the control system
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disturbance response of the control system
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hunting
Hide details for [<u>Section 351-47: Types of control</u>]Section 351-47: Types of control
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closed-loop control
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open-loop control
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closed action path
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closed action
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open action path
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open action
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forward path
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feedback path
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disturbance feedforward control
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reference-variable feedforward control
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control loop
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control chain
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continuous feedback control
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multi-position control
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sampling control
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sampling period
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fixed set-point control
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time scheduled closed-loop control
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follow-up control
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programmed control
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hardwired programmed logic control
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storage-programmable logic control
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non-clocked control
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clocked control
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cascade control
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secondary control
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ratio control
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state-feedback control
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output-feedback control
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distributed feedback control
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observer
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observer-based control
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model-based control
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modal control
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multivariable control
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integrity of a multiloop control system
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decoupling
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centralized control
351-47-39
decentralized control
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hierarchical control
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optimal control
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adaptive control
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parameter identification
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parameter sensitivity
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robust control
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disturbance estimation
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prediction
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limiting control
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alternative control
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split-range control
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switching control
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computer control
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time-shared control
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position algorithm
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velocity algorithm
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fuzzy control
351-47-57
membership function
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rule-based control
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sequential control
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process-oriented sequential control
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time-oriented sequential control
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reset circuit
351-47-63
pole assignment
Hide details for [<u>Section 351-48: Variables and signals in control systems</u>]Section 351-48: Variables and signals in control systems
351-48-01
controlled variable
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reference variable
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feedback variable
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control difference variable
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steady-state control difference variable
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controller output variable
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manipulated variable
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disturbance variable
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command variable
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final controlled variable
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measuring range
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measuring span
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range of the controlled variable
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range of the reference variable
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range of the final controlled variable
351-48-16
range of the manipulated variable
351-48-17
manipulating time
351-48-18
range of the disturbance variable
Hide details for [<u>Section 351-49: Functional units in control systems</u>]Section 351-49: Functional units in control systems
351-49-01
controlled system
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controlling system
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comparing element
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controlling element
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measuring element in control technology
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control system
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actuator
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final controlling element
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final controlling equipment
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reference-variable generating element
351-49-11
controller for closed-loop control
Hide details for [<u>Section 351-50: Characteristics of functional units in control systems</u>]Section 351-50: Characteristics of functional units in control systems
351-50-01
lag element
351-50-02
first-order lag element
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second-order lag element
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lead-lag element
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proportional element
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proportional action coefficient
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proportional band of a controlling element
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integral element
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integral action coefficient
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integral action time
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proportional plus integral element
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reset time
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derivative element
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derivative action coefficient
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derivative action time
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proportional plus derivative element
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rate time
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derivative action gain
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proportional plus integral plus derivative element
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multi-position element
351-50-21
two-position element
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on-off element
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three-position element
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switching value
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differential gap
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neutral zone
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limit monitor
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sampling element
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holding element
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dead time
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dead-time element
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adding element
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multiplying element
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dividing element
351-50-35
function generator
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square-root element
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squaring element
351-50-38
absolute-value element
351-50-39
sign element
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storage element
Hide details for [<u>Section 351-51: Variables and signals in switching systems</u>]Section 351-51: Variables and signals in switching systems
351-51-01
checkback signal
351-51-02
enabling signal
351-51-03
interlock signal
351-51-04
command in a function chart
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stored command
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conditional command
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delayed command
351-51-08
time-limited command
351-51-09
waiting time
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check time
Hide details for [<u>Section 351-52: Functional units in switching systems</u>]Section 351-52: Functional units in switching systems
351-52-01
switching system
351-52-02
switching element
351-52-03
combinatorial circuit
351-52-04
sequential circuit
351-52-05
binary-logic element
351-52-06
bistable element
351-52-07
dynamic input in switching systems
351-52-08
triggered bistable element
351-52-09
monostable multivibrator
351-52-10
binary delay element
351-52-11
register
351-52-12
counter
Hide details for [<u>Section 351-53: Characteristics of functional units in switching systems</u>]Section 351-53: Characteristics of functional units in switching systems
351-53-01
switching function
351-53-02
state transition table
351-53-03
transition function
351-53-04
output function
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switching table
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state graph
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Boolean operation
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function chart for sequential control
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step
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transition
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transition condition
351-53-12
sequence chain
351-53-13
beginning of sequence selection
351-53-14
end of sequence selection
351-53-15
beginning of simultaneous sequences
351-53-16
end of simultaneous sequences
Hide details for [<u>Section 351-54: Process computer systems</u>]Section 351-54: Process computer systems
351-54-01
process computer system
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compact process computer system
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distributed process computer system
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redundant process computer system
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process interface
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real-time capability
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interrupt capability
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restart capability
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real-time operating system
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process monitoring system
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process peripherals
351-54-12
analog output unit
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digital output unit
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analog input unit
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digital input unit
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timer
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interrupt input unit
351-54-18
interrupt reaction time
351-54-19
input transfer rate
351-54-20
output transfer rate
Hide details for [<u>Section 351-55: Control hierarchies</u>]Section 351-55: Control hierarchies
351-55-01
operating mode
351-55-02
manual operation
351-55-03
automatic operation
351-55-04
semi-automatic operation
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step-setting operation
351-55-06
time program
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priority
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control structure
351-55-09
centralized control structure
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decentralized control structure
351-55-11
hierarchical control structure
351-55-12
control level
351-55-13
individual control level
351-55-14
group control level
351-55-15
plant control level
351-55-16
process control function
Hide details for [<u>Section 351-56: Specific units in control technology</u>]Section 351-56: Specific units in control technology
351-56-01
item under consideration
351-56-02
functional unit
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physical unit
351-56-04
signal generator
351-56-05
filter element
351-56-06
adjuster
351-56-07
control device
351-56-08
time scheduler
351-56-09
clock generator
351-56-10
bus
351-56-11
ring
351-56-12
star
351-56-13
mesh
351-56-14
protocol
351-56-15
linking element
351-56-16
actuating drive
351-56-17
positioner
351-56-18
indicating element
351-56-19
output element
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decoupled output
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conditions of operation, pl
351-56-22
active fault in control equipment
351-56-23
passive fault in control equipment
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control equipment
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programmable controller
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sensing element
351-56-27
transducing element
351-56-28
measuring transducer
351-56-29
measuring transmitter
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transformer
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barrier
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amplifier
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operational amplifier
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magnetic amplifier
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converter
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analog-to-digital converter
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digital-to-analog converter
351-56-38
serial-to-parallel converter
351-56-39
parallel-to-serial converter
Hide details for [<u>Section 351-57: Safety aspects in control technology</u>]Section 351-57: Safety aspects in control technology
351-57-01
hazard
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harm
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risk
351-57-04
tolerable risk
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safety
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functional safety
351-57-07
security


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