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Logo/HMI switch with graphic operation

8/26/2017 4:33 AM	Rate (0)
shauns Regular Member Joined: 5/21/2012 Last visit: 9/1/2024 Posts: 24 Rating: (0)	Hi I'm trying to achieve the following using a logo and KTP400, is it possible? I have 4 switches with graphics in the HMI which I would like to interlock. ie if I push switch 1 and it latches on, when I push switch 2, it turns on and switch 1 turns off. Can you change the switch position/indication form the logo to the HMI in both directions? Thanks Shaun

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8/26/2017 6:30 AM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 9/10/2025 Posts: 35940 Rating: (4500)	You must create four push buttons in WinCC. For each, you have to set a corresponding V-bit under the properties with "push button" and reset this V-bit with "button release". Example of Push Button 1: The V-bit 0.0 is set or reset by the HMI. The feedback to the HMI that the associated latch relay is set is then performed by the V bit 1.0. Attachment Push_buttons_(0BA8.Standard).zip (251 Downloads)

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This contribution was helpful to 2 thankful Users shauns DL110

8/26/2017 10:25 PM	Rate (0)
shauns Regular Member Joined: 5/21/2012 Last visit: 9/1/2024 Posts: 24 Rating: (0)	Hi Thanks! What would be the easiest way to drop the latch if you pushed the button that is already on? I have it working with a timer, press to turn on, press and hold to turn off. Just trying to find a simple way to do press on press off. Cheers Shaun

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