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LOGO! Siemens - Alternating Opening and Closing of Two Valves

Created by: AutoGen_08e47 at: 5/13/2025 1:56 PM (7 Replies)

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5/13/2025 1:56 PM	Rate (0)
AutoGen_08e47 Joined: 5/8/2025 Last visit: 5/22/2025 Posts: 10 Rating: (0)	Hello everyone, I'm working on a project with LOGO! Siemens where I want to alternately open and close two valves in a fixed time cycle, for example, every 5 seconds. I would also like to add a start and stop button to control the cycle. Does anyone have an idea how I can program this in LOGO! or would someone be willing to do this for me? Thanks in advance!

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5/13/2025 2:03 PM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 9/10/2025 Posts: 35947 Rating: (4500)	I'd actually like to help you. But you always assume that complete programs will be created for you. That way, you'll never learn to program yourself. PS: Are you giving me another bad ranking?

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5/13/2025 2:07 PM	Rate (0)
AutoGen_08e47 Joined: 5/8/2025 Last visit: 5/22/2025 Posts: 10 Rating: (0)	Can you help me then,

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5/13/2025 2:12 PM	Rate (2)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 9/10/2025 Posts: 35947 Rating: (4500)

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This contribution was helpful to 1 thankful Users Moderator_Lan

5/13/2025 4:06 PM	Rate (0)
AutoGen_08e47 Joined: 5/8/2025 Last visit: 5/22/2025 Posts: 10 Rating: (0)	Hi, thanks in advance for helping me, but when I simulate, Q1 and Q2 turn on at the same time, which is not the intention. It should be 5s Q1 and then 5s Q2. What am I doing wrong? Thanks a lot

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5/13/2025 4:13 PM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 9/10/2025 Posts: 35947 Rating: (4500)	You have forgot the negation an the input of B004.

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5/13/2025 4:54 PM	Rate (1)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 9/10/2025 Posts: 35947 Rating: (4500)	How to negate an input connector see attached screen video. Attachment How to negate an input connector.avi (185 Downloads)

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5/13/2025 5:37 PM	Rate (0)
AutoGen_08e47 Joined: 5/8/2025 Last visit: 5/22/2025 Posts: 10 Rating: (0)	It worked! Thank you so much for your help and the clear video. If I have other projects, can I send you for help?

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