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Biestable with one only button in TIA PORTAL

Created by: Jose Antonio at: 10/18/2014 8:46 PM (5 Replies)

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10/18/2014 8:46 PM	Rate (0)
Jose Antonio Posts: 16 Rating: (0)	Hi guys, I've a FB to do a biestable to change a signal with a only button. I mean if I push the button the signal goes to 1 and in the next pushing the button the signal must go to 0, but it doesn't work, the signal is flashing or changing while I remain pushing the button, what can be happing? Attachment FB biestable.JPG (226 Downloads)
Jose Antonio Posts: 16 Rating: (0)
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10/18/2014 8:47 PM	Rate (0)
Jose Antonio Posts: 16 Rating: (0)	I'm sorry. I have more pictures... Attachment call biestable.JPG (232 Downloads)
Jose Antonio Posts: 16 Rating: (0)
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10/18/2014 8:48 PM	Rate (0)
Jose Antonio Posts: 16 Rating: (0)	And the last one. Thanks in advance for your help Attachment parameters.JPG (188 Downloads)
Jose Antonio Posts: 16 Rating: (0)
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10/18/2014 9:23 PM	Rate (0)
0_Einstein Diamond Expert Joined: 7/7/2010 Last visit: 1/24/2025 Posts: 15558 Rating: (2468)	Jose Antonio Hi guys, I've a FB to do a biestable to change a signal with a only button. I mean if I push the button the signal goes to 1 and in the next pushing the button the signal must go to 0, but it doesn't work, the signal is flashing or changing while I remain pushing the button, what can be happing? You might consider using a simple counting algorithm. First scan sets count to zero. Each button press adds one to a count. If button count is one turn on output. If button count is two set count to zero. If button count is zero turn off output. This method works on all plc platforms. There are more Siemens specific ways to do it but this is easy to use and troubleshoot.
	science guy
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10/19/2014 9:47 AM	Rate (0)
fritz Diamond Member Joined: 10/7/2005 Last visit: 1/24/2025 Posts: 3032 Rating: (1059)	Hello Jose Antonio as an alternative to huggy_d1's advice, consider the advice in thepost how to use only one push button to on/off the output.
	Cheers fritz The advice and opinion given in this thread is that of the author and does not necessarily reflect the views of I S Systems Pty Limited. To find out how I S Systems can help you with your automation needs please visit www.issystems.com.au.
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This contribution was helpful to 1 thankful Users 0_Einstein

10/19/2014 4:32 PM	Rate (0)
Jose Antonio Posts: 16 Rating: (0)	Hi guys! Thanks for yours quick answers. I'll have a look to your answers
Jose Antonio Posts: 16 Rating: (0)
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