Siemens SIMATIC ET 200S Operating Instructions Manual page 266

2PULSE
5.3 Modes and Functions
Pulse Diagram
Figure 5-6 Pulse-Width Modulation Output Sequence
Canceling the Output Sequence
Deleting the software enable (SW_ENABLE=0) during the on-delay or the pulse output
cancels the output sequence, and STS_ENABLE and the DO digital output are canceled.
You will then have to restart the output sequence.
Truth Table
Software enable Hardware enable
SW_ENABLE (digital input DI)
1 0→1
0→1 Not used
0 Any status
1 0
1 1
1 Not used
0→1 0
0→1: Positive edge
266
Digital output DO
0, if on-delay >0
1, if on-delay =0
0, if on-delay >0
1, if on-delay =0
0
Previous status remains
Previous status remains
Previous status remains
0
STS_ENABLE
0→1
0→1
0
0
Technological Functions
Operating Instructions, 02/2007, A5E00124867-05
Output
sequence
Start
Start
Cancel
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