Siemens SIMATIC ET 200SP Manual page 16

Wave packet control
In case of wave packet control, the module connects the load voltage through to the load for
entire half or full waves starting at the zero crossing.
The wave packets to be output are calculated dynamically. Unlike with fixed wave packet
patterns, the changes of the output value are taken into consideration faster while ensuring
the absence of direct voltage in the output voltage at the same time. This allows for the
implementation of controllers with shorter dead times.
The process value hereby refers to the average switch-on duration over multiple alternating
voltage periods of the load voltage.
The graphics below show you how basic wave packet control for half waves or full waves
works.
Figure 2-3
Figure 2-4
DQ 4x24..230VAC/2A HF digital output module (6ES7132-6FD00-0CU0)
Manual, 02/2018, A5E42404845-AA
Principle of wave packet control - half waves
Principle of wave packet control - full waves
Product overview
2.2 Functions
15