12/27/2018 1:10 PM | |
Joined: 7/26/2018 Last visit: 10/28/2022 Posts: 18 Rating: (0) |
Hi, I have similar problem, so don't want to open new thread. I have push button physically installed, and i also want to change its value from HMI. I set button on HMI to press/release (SetBit when pressed and ResetBit when released). I want to make it with SR flops, but it isn't working correctly. Any idea? I'm trying to make it in LADDER. ------------------------------------------------------------------------------------------ |
Last edited by: CS Moderator at: 12/29/2018 1:16:42 PMNew subject after splitting |
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12/30/2018 3:16 PM | |
Joined: 11/16/2012 Last visit: 10/1/2024 Posts: 307 Rating: (52) |
A Pulse Relay is what you are looking for. You can use a Pulse Relay provided in the Library of general functions (LGF) for STEP 7 (TIA Portal) and S7-1200 / S7-1500. With an OR on the trigger input, you can connect your HMI button and your physical button to the PulseRelay and set your output. In your HMI configuration, you can use a Pushbutton with the Event "SetBitWhileKeyPressed". AttachmentPulseRelay-Physical_HMI.pdf (277 Downloads) |
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