Siemens S7-1200 System Manual page 506

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9.3 Motion control

Example 1 - If the parameterized velocity is reached and maintained

The task is started with a positive edge at the input parameter "JogForward" or "JogBackward".

While the task is active, the output parameter "Busy" indicates the value TRUE.

When the parameterized velocity is reached, the output parameter "InVelocity" changes to TRUE.

When the input parameter "JogForward" or "JogBackward" is reset to the value FALSE, the axis motion ends. The axis

starts to decelerate. As a result, the axis no longer moves at constant velocity and the output parameter "InVelocity"

changes its status to FALSE.

If the axis has come to a standstill, the motion control task is complete and the output parameter "Busy" changes its

value to FALSE.

System Manual, 03/2014, A5E02486680-AG

S7-1200 Programmable controller