Siemens SIMATIC S7-1500 System Manual page 130

Drive controller
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Examples
Base frequency: 1 kHz → Base period: 1 ms
1111 0000 0000 0000 1111 0000 0000 0000
Time period: 500 µs; 375 µs LOW; 125 µs HIGH
Figure 7-25
Pulse width modulation
Base frequency: 1 kHz
1111 1111 1111 1111 0000 0000 0000 0000
Time period: 1 ms; 500 µs LOW; 500 µs HIGH
1111 1111 0000 0000 0000 0000 0000 0000
Time period: 1 ms; 750 µs LOW; 250 µs HIGH
1111 0000 1111 0000 1111 0000 1111 0000
Time period: 250 µs; 125 µs LOW; 125 µs HIGH
Base frequency: 2 kHz
1010 1010 1010 1010 1010 1010 1010 1010
Time period: 31.25 µs; 15.625 µs LOW; 15.625 µs HIGH
SIMATIC Drive Controller
System Manual, 11/2019, A5E46600094-AA
7.9 Configuration of digital inputs/outputs (X142)
Configuring
129

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