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 | |
| 351-41-14 | | 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 | |
| 351-41-28 | | aliasing | |
Section 351-42: General concepts | |
| 351-42-01 | | state equation | |
| 351-42-02 | | output equation | |
| 351-42-03 | | input matrix | |
| 351-42-04 | | output matrix | |
| 351-42-05 | | direct input-output matrix | |
| 351-42-06 | | system matrix | |
| 351-42-07 | | transition matrix | |
| 351-42-08 | | 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 | |
| 351-42-36 | | cybernetics | |
| 351-42-37 | | expert system | |
| 351-42-38 | | knowledge base | |
| 351-42-39 | | inference engine | |
Section 351-43: Tasks/functions in control technology | |
| 351-43-01 | | measure, verb | |
| 351-43-02 | | count, verb | |
| 351-43-03 | | monitor, verb | |
| 351-43-04 | | indicate, verb | |
| 351-43-05 | | notify, verb | |
| 351-43-06 | | alert, verb | |
| 351-43-07 | | warn, verb | |
| 351-43-08 | | alarm, verb | |
| 351-43-09 | | 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 | |
Section 351-44: Structures of control systems | |
| 351-44-01 | | functional diagram | |
| 351-44-02 | | functional block | |
| 351-44-03 | | action path | |
| 351-44-04 | | action line | |
| 351-44-05 | | direction of action | |
| 351-44-06 | | summing point | |
| 351-44-07 | | branching point | |
| 351-44-08 | | serial structure | |
| 351-44-09 | | parallel structure | |
| 351-44-10 | | loop structure | |
Section 351-45: Behaviour and characteristics of transfer elements | |
| 351-45-01 | | principle of superposition | |
| 351-45-02 | | principle of shifting | |
| 351-45-03 | | transfer element | |
| 351-45-04 | | linear transfer element | |
| 351-45-05 | | time-invariant transfer element | |
| 351-45-06 | | distributed-parameter transfer element | |
| 351-45-07 | | identification of a system | |
| 351-45-08 | | transient behaviour | |
| 351-45-09 | | time response | |
| 351-45-10 | | steady state | |
| 351-45-11 | | characteristic curve | |
| 351-45-12 | | operating point | |
| 351-45-13 | | saturation | |
| 351-45-14 | | limitation | |
| 351-45-15 | | dead band | |
| 351-45-16 | | hysteresis | |
| 351-45-17 | | reset windup | |
| 351-45-18 | | damping | |
| 351-45-19 | | damping ratio | |
| 351-45-20 | | unit impulse | |
| 351-45-21 | | unit-step function | |
| 351-45-22 | | unit time ramp | |
| 351-45-23 | | impulse function | |
| 351-45-24 | | step function | |
| 351-45-25 | | ramp function | |
| 351-45-26 | | impulse response | |
| 351-45-27 | | step response | |
| 351-45-28 | | ramp response | |
| 351-45-29 | | unit-impulse response | |
| 351-45-30 | | unit-step response | |
| 351-45-31 | | unit-ramp response | |
| 351-45-32 | | time constant | |
| 351-45-33 | | impulse-function sequence | |
| 351-45-34 | | equivalent dead time | |
| 351-45-35 | | equivalent time constant | |
| 351-45-36 | | step response time | |
| 351-45-37 | | settling time | |
| 351-45-38 | | overshoot | |
| 351-45-39 | | transfer function | |
| 351-45-40 | | Z-transfer function | |
| 351-45-41 | | frequency response | |
| 351-45-42 | | gain | |
| 351-45-43 | | logarithmic gain | |
| 351-45-44 | | 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 | |
| 351-45-50 | | describing function | |
| 351-45-51 | | rational transfer element | |
| 351-45-52 | | minimal-phase element | |
| 351-45-53 | | all-pass element | |
| 351-45-54 | | controlled system with self-regulation | |
| 351-45-55 | | controlled system without self-regulation | |
Section 351-46: Behaviour and characteristics of control systems | |
| 351-46-01 | | control rise time | |
| 351-46-02 | | control settling time | |
| 351-46-03 | | open-loop frequency response | |
| 351-46-04 | | gain crossover angular frequency | |
| 351-46-05 | | phase margin | |
| 351-46-06 | | phase crossover angular frequency | |
| 351-46-07 | | gain margin | |
| 351-46-08 | | control factor | |
| 351-46-09 | | Nichols plot | |
| 351-46-10 | | root-locus plot | |
| 351-46-11 | | phase plane analysis | |
| 351-46-12 | | reference-variable response of the control system | |
| 351-46-13 | | disturbance response of the control system | |
| 351-46-14 | | hunting | |
Section 351-47: Types of control | |
| 351-47-01 | | closed-loop control | |
| 351-47-02 | | open-loop control | |
| 351-47-03 | | closed action path | |
| 351-47-04 | | closed action | |
| 351-47-05 | | open action path | |
| 351-47-06 | | open action | |
| 351-47-07 | | forward path | |
| 351-47-08 | | feedback path | |
| 351-47-09 | | disturbance feedforward control | |
| 351-47-10 | | reference-variable feedforward control | |
| 351-47-11 | | control loop | |
| 351-47-12 | | control chain | |
| 351-47-13 | | continuous feedback control | |
| 351-47-14 | | multi-position control | |
| 351-47-15 | | sampling control | |
| 351-47-16 | | sampling period | |
| 351-47-17 | | fixed set-point control | |
| 351-47-18 | | time scheduled closed-loop control | |
| 351-47-19 | | follow-up control | |
| 351-47-20 | | programmed control | |
| 351-47-21 | | hardwired programmed logic control | |
| 351-47-22 | | storage-programmable logic control | |
| 351-47-23 | | non-clocked control | |
| 351-47-24 | | clocked control | |
| 351-47-25 | | cascade control | |
| 351-47-26 | | secondary control | |
| 351-47-27 | | ratio control | |
| 351-47-28 | | state-feedback control | |
| 351-47-29 | | output-feedback control | |
| 351-47-30 | | distributed feedback control | |
| 351-47-31 | | observer | |
| 351-47-32 | | observer-based control | |
| 351-47-33 | | model-based control | |
| 351-47-34 | | modal control | |
| 351-47-35 | | multivariable control | |
| 351-47-36 | | integrity of a multiloop control system | |
| 351-47-37 | | decoupling | |
| 351-47-38 | | centralized control | |
| 351-47-39 | | decentralized control | |
| 351-47-40 | | hierarchical control | |
| 351-47-41 | | optimal control | |
| 351-47-42 | | adaptive control | |
| 351-47-43 | | parameter identification | |
| 351-47-44 | | parameter sensitivity | |
| 351-47-45 | | robust control | |
| 351-47-46 | | disturbance estimation | |
| 351-47-47 | | prediction | |
| 351-47-48 | | limiting control | |
| 351-47-49 | | alternative control | |
| 351-47-50 | | split-range control | |
| 351-47-51 | | switching control | |
| 351-47-52 | | computer control | |
| 351-47-53 | | time-shared control | |
| 351-47-54 | | position algorithm | |
| 351-47-55 | | velocity algorithm | |
| 351-47-56 | | fuzzy control | |
| 351-47-57 | | membership function | |
| 351-47-58 | | rule-based control | |
| 351-47-59 | | sequential control | |
| 351-47-60 | | process-oriented sequential control | |
| 351-47-61 | | time-oriented sequential control | |
| 351-47-62 | | reset circuit | |
| 351-47-63 | | pole assignment | |
Section 351-48: Variables and signals in control systems | |
| 351-48-01 | | controlled variable | |
| 351-48-02 | | reference variable | |
| 351-48-03 | | feedback variable | |
| 351-48-04 | | control difference variable | |
| 351-48-05 | | steady-state control difference variable | |
| 351-48-06 | | controller output variable | |
| 351-48-07 | | manipulated variable | |
| 351-48-08 | | disturbance variable | |
| 351-48-09 | | command variable | |
| 351-48-10 | | final controlled variable | |
| 351-48-11 | | measuring range | |
| 351-48-12 | | measuring span | |
| 351-48-13 | | range of the controlled variable | |
| 351-48-14 | | range of the reference variable | |
| 351-48-15 | | 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 | |
Section 351-49: Functional units in control systems | |
| 351-49-01 | | controlled system | |
| 351-49-02 | | controlling system | |
| 351-49-03 | | comparing element | |
| 351-49-04 | | controlling element | |
| 351-49-05 | | measuring element in control technology | |
| 351-49-06 | | control system | |
| 351-49-07 | | actuator | |
| 351-49-08 | | final controlling element | |
| 351-49-09 | | final controlling equipment | |
| 351-49-10 | | reference-variable generating element | |
| 351-49-11 | | controller for closed-loop control | |
Section 351-50: Characteristics of functional units in control systems | |
| 351-50-01 | | lag element | |
| 351-50-02 | | first-order lag element | |
| 351-50-03 | | second-order lag element | |
| 351-50-04 | | lead-lag element | |
| 351-50-05 | | proportional element | |
| 351-50-06 | | proportional action coefficient | |
| 351-50-07 | | proportional band of a controlling element | |
| 351-50-08 | | integral element | |
| 351-50-09 | | integral action coefficient | |
| 351-50-10 | | integral action time | |
| 351-50-11 | | proportional plus integral element | |
| 351-50-12 | | reset time | |
| 351-50-13 | | derivative element | |
| 351-50-14 | | derivative action coefficient | |
| 351-50-15 | | derivative action time | |
| 351-50-16 | | proportional plus derivative element | |
| 351-50-17 | | rate time | |
| 351-50-18 | | derivative action gain | |
| 351-50-19 | | proportional plus integral plus derivative element | |
| 351-50-20 | | multi-position element | |
| 351-50-21 | | two-position element | |
| 351-50-22 | | on-off element | |
| 351-50-23 | | three-position element | |
| 351-50-24 | | switching value | |
| 351-50-25 | | differential gap | |
| 351-50-26 | | neutral zone | |
| 351-50-27 | | limit monitor | |
| 351-50-28 | | sampling element | |
| 351-50-29 | | holding element | |
| 351-50-30 | | dead time | |
| 351-50-31 | | dead-time element | |
| 351-50-32 | | adding element | |
| 351-50-33 | | multiplying element | |
| 351-50-34 | | dividing element | |
| 351-50-35 | | function generator | |
| 351-50-36 | | square-root element | |
| 351-50-37 | | squaring element | |
| 351-50-38 | | absolute-value element | |
| 351-50-39 | | sign element | |
| 351-50-40 | | storage element | |
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 | |
| 351-51-05 | | stored command | |
| 351-51-06 | | conditional command | |
| 351-51-07 | | delayed command | |
| 351-51-08 | | time-limited command | |
| 351-51-09 | | waiting time | |
| 351-51-10 | | check time | |
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 | |
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 | |
| 351-53-05 | | switching table | |
| 351-53-06 | | state graph | |
| 351-53-07 | | Boolean operation | |
| 351-53-08 | | function chart for sequential control | |
| 351-53-09 | | step | |
| 351-53-10 | | transition | |
| 351-53-11 | | 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 | |
Section 351-54: Process computer systems | |
| 351-54-01 | | process computer system | |
| 351-54-02 | | compact process computer system | |
| 351-54-03 | | distributed process computer system | |
| 351-54-04 | | redundant process computer system | |
| 351-54-05 | | process interface | |
| 351-54-06 | | real-time capability | |
| 351-54-07 | | interrupt capability | |
| 351-54-08 | | restart capability | |
| 351-54-09 | | real-time operating system | |
| 351-54-10 | | process monitoring system | |
| 351-54-11 | | process peripherals | |
| 351-54-12 | | analog output unit | |
| 351-54-13 | | digital output unit | |
| 351-54-14 | | analog input unit | |
| 351-54-15 | | digital input unit | |
| 351-54-16 | | timer | |
| 351-54-17 | | interrupt input unit | |
| 351-54-18 | | interrupt reaction time | |
| 351-54-19 | | input transfer rate | |
| 351-54-20 | | output transfer rate | |
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 | |
| 351-55-05 | | step-setting operation | |
| 351-55-06 | | time program | |
| 351-55-07 | | priority | |
| 351-55-08 | | control structure | |
| 351-55-09 | | centralized control structure | |
| 351-55-10 | | 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 | |
Section 351-56: Specific units in control technology | |
| 351-56-01 | | item under consideration | |
| 351-56-02 | | functional unit | |
| 351-56-03 | | 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 | |
| 351-56-20 | | decoupled output | |
| 351-56-21 | | conditions of operation, pl | |
| 351-56-22 | | active fault in control equipment | |
| 351-56-23 | | passive fault in control equipment | |
| 351-56-24 | | control equipment | |
| 351-56-25 | | programmable controller | |
| 351-56-26 | | sensing element | |
| 351-56-27 | | transducing element | |
| 351-56-28 | | measuring transducer | |
| 351-56-29 | | measuring transmitter | |
| 351-56-30 | | transformer | |
| 351-56-31 | | barrier | |
| 351-56-32 | | amplifier | |
| 351-56-33 | | operational amplifier | |
| 351-56-34 | | magnetic amplifier | |
| 351-56-35 | | converter | |
| 351-56-36 | | analog-to-digital converter | |
| 351-56-37 | | digital-to-analog converter | |
| 351-56-38 | | serial-to-parallel converter | |
| 351-56-39 | | parallel-to-serial converter | |
Section 351-57: Safety aspects in control technology | |
| 351-57-01 | | hazard | |
| 351-57-02 | | harm | |
| 351-57-03 | | risk | |
| 351-57-04 | | tolerable risk | |
| 351-57-05 | | safety | |
| 351-57-06 | | functional safety | |
| 351-57-07 | | security | |
| |