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Sequence Steps from a pulse Input

Created by: kraftwerk at: 1/9/2006 12:45 PM (2 Replies)

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1/9/2006 12:45 PM	Rate (0)
kraftwerk Posts: 9 Rating: (0)	Which is the best form of becoming sequential of n steps from a beaten entrance? Fellow creature to the functioning of the IC 4017? See the example below: Attachment CI 4017.JPG (1122 Downloads)
kraftwerk Posts: 9 Rating: (0)
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1/9/2006 7:05 PM	Rate (0)
Denilson Pegaia Platinum Member Joined: 9/23/2005 Last visit: 11/14/2024 Posts: 4352 Rating: (1452)	Hi, If you have few steps (8) you can use some like shift instructions in a manual implementation.
	Denilson Pegaia Siemens Industry Sector Technical Support
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1/9/2006 7:37 PM	Rate (0)
Thumper Posts: 62 Rating: (19)	Greetings, Take a look at the counter instruction. It has an on and off count. This makes it, for lack of a better description, a cam. Parallel feed the count/input pulse to as many counters as you need to duplicate your process. Set the parameters so that each counter is " one up " on the last. ie. Counter 1 on at 1 off at 2 Counter 2 on at 2 off at 3 Counter 3 on at 3 off at 4 etc. By pulsing them all together, you can get that waveform. We use that function to replace mechanical cam timers since we can set up the on and off time on the cam via the parameters.You can reset the whole group on the negative edge of the last count if you need to. Best Regards,
Thumper Posts: 62 Rating: (19)
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