straton Runtime cycle

The straton Runtime cycle consists of:

Calc. time: Time for data exchange, calculation, save calculated values, read and write modified values, idle time.
Cycle time: Complete cycle time determined by system latency.
System latency: Response time of the system.

These values can be displayed in the straton user interface. Use the shortcut ALT+S or SHIFT+ALT+A.

Property	Description
Binding exchange	Reading of the Binding values which are published in the network and which were configured by the application (if they were configured).
I/O exchange	Data exchange between the I/O drivers (except Modbus slave/server) and the I/O boards (if they were configured).
Application execution	Execution of the programs.
Digital sampling trace	Execution of the digital sampling (if it was configured).
Events	Sending of the events (Binding or `straton32.exe` driver of zenon) (if they were configured).
Forced values	Reading of the forced values of zenon from the straton Workbench (online debugging) and data exchange of the Modbus slave/server (if they were configured).
Sleep	Wait the remaining time until the cycle time is over. When cycle setting is As fast as possible (free run), the time is always 1 ms. The Sleep time is used in order to execute tasks of the operation system and of other windows applications.

Time allocation PLC and Windows

With the help of the slider in the straton Runtime user interface, you can determine how much time is reserved for the PLC and for Windows. The value displayed in the bar graph always refers to the ratio set in the slide control.