102BTechnology instructions
9.3 Basic motion control
S7-1200 Programmable controller
System Manual, 11/2011, A5E02486680-05
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Note
The CPU calculates motion tasks in "slices" or segments of 10 ms. As one slice is being
executed, the next slice is waiting in the queue to be executed. If you interrupt the motion
task on an axis (by executing another new motion task for that axis), the new motion task
may not be executed for a maximum of 20 ms (the remainder of the current slice plus the
queued slice).
9.3.1
Configuration of the axis
STEP 7 provides the configuration tools, the commissioning tools, and the diagnostic tools
for the "Axis" technological object.
①
Drive
④
Commissioning
②
Technological object
⑤
Diagnostics
③
Configuration
Note
The PTO requires the internal functionality of a high-speed counter (HSC). This means the
corresponding high-speed counter cannot be used elsewhere.
The assignment between PTO and HSC is fixed. When PTO1 is activated, it will be
connected to HSC1. If PTO2 is activated, it will be connected to HSC2.
You cannot monitor the current value (for example, in ID 1000) when pulses are occurring.