Time-based IO basics
2.2 Time behavior of Time-based IO
High-precision input/output with Time-based IO
14
Function Manual, 11/2019, A5E33454822-AC
2.2
Time behavior of Time-based IO
2.2.1
Time behavior of standard technology
The time behavior of the inputs/outputs depends on the following factors for standard
technology:
●
CPU program (program structure)
●
Bus cycle times (fieldbus, backplane bus)
●
Cycle time of the I/O modules
●
Internal cycle time of sensors/actuators
A deterministic statement as to
●
when an input event (e.g., sensor signal) has taken place
●
when the output event has an effect on the input event (e.g., output switches)
will become inaccurate due to the time factors listed above.
Содержание SIMATIC ET 200AL
Страница 2: ......
Страница 143: ......
Страница 218: ......
Страница 250: ......
Страница 296: ......
Страница 337: ......
Страница 365: ......
Страница 392: ......
Страница 419: ......
Страница 451: ......
Страница 483: ......
Страница 597: ......
Страница 648: ......
Страница 702: ......
Страница 739: ......
Страница 781: ......
Страница 804: ......
Страница 828: ......
Страница 853: ......
Страница 880: ......
Страница 906: ......
Страница 996: ...Diagnostics ...
Страница 1121: ......
Страница 1565: ......