Siemens SIMOCODE pro Operating Manual page 271

Example - Pulse width modulator
A load will be switched on and off with a duration of 60 minutes, dependent on a measured
value (e.g., temperature).
● If the measured value exceeds a maximum value of 50°°C (323 K), the load will be
switched on permanently, and if it falls below 20°°C (293 K), it will be switched off
permanently.
● If the measured value falls within the range between the minimum and maximum value,
the On duration will be proportional to the measured value.
● Duration: 60 min (3600 s)
● Lower limit: 20°C (293 K)
● Hi limit: 50°C (323 K).
● At 20°C (293 K): OFF
● At 30°C (303 K): 20 min ON and 40 min OFF
● At 40°C (313 K): 40 min ON and 20 min OFF
● At 50°C (323 K): ON.
SIMOCODE pro - Parameterize
Operating Manual, 04/2017, A5E40507630002A/RS-AA/001
Parameters
4.8 Logic modules
271