Siemens SIMATIC ET 200S - Pulse stretching

1PosUniversal/Digital
7.6 Functions of the 1PosU
ET 200S Positioning
Operating Instructions, 05/2007, A5E00124871-04
325
Controlling the Drive
The drive is controlled using the 3 digital outputs of the 1PosU.
You can select the speed with the SPEED control bit (SPEED=0 is creep feed; SPEED=1 is
rapid feed). You can also change the speed during the run.
You can bring about a change in direction with the T
min
direction change parameter.
You can read the status of each output from the feedback interface (DO0, DO1 and DO2).
The function of the digital outputs depends on the control mode.
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Figure 7-7 Digital Outputs with Control Mode 0
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Figure 7-8 Digital Outputs with Control Mode 1