4/2/2021 11:29 PM | |
Joined: 6/30/2019 Last visit: 1/28/2025 Posts: 3 Rating:
|
Dear colleagues, Please suggest an advice on an issue regarding the behaviour of the PWM output with variable Duty Cycle configured on a S7 1212C PLC. See attached pictures with the configuration Q0.4 integrated 20kHz PWM output mapped to QW1010. When measuring the output with the oscilloscope, setting a duty cycle of 50% we measure approximately the same value but, when approaching the limits (5% or 95%) the gap between the setpoint and the measurement is very high. For example for a 5% duty cycle setpoint we measure around 16%. See attached various measurements. Have you ever faced this issue? Any idea could help! Thank you! Best regards, Vlad Colesnic Attachmentpwm output issue.zip (290 Downloads) |
4/15/2021 7:29 AM | |
Joined: 6/19/2017 Last visit: 9/6/2024 Posts: 8175 Rating:
|
Closed cause question posted twice. The second thread with the subject S7 1212C PWM output Duty Cycle issue is published within the conference SIMATIC Technology. Jen_Moderator |
Follow us on