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| 1/19/2022 4:58 PM | |
Joined: 1/19/2022 Last visit: 2/21/2022 Posts: 1 Rating:
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What do I need to do in my PLC code in order to change a value on the HMI screen and have it save? I'm wanting to change the value of a parameter on the screen and then save that value so it's set as the default until it's changed on screen again. I also don't know what events to use in order to link the numpad to changing the value of what's selected and then being able to save that value or cancel the edit |
| 1/21/2022 7:02 PM | |
Joined: 1/27/2009 Last visit: 3/19/2025 Posts: 172 Rating:
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Hi, Your question is a little bit unclear. Could you clarify it?
Are you going to change the value in the PLC or you are going to change that value on the HMi? Where do you want to store it? Could you upload some screenshots of what you are doing and what you would like to achive? |
Last edited by: @rturas at: 01/21/2022 19:04:26The only thing necessary for the triumph of evil is for good men to do nothing |
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| 1/24/2022 6:13 PM | |
Joined: 7/5/2013 Last visit: 4/17/2025 Posts: 3147 Rating:
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Hi kcgrade, you have to set the PLC tags "retain". Then the PLC keeps the values even when power off. Regards, Frink |
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Pi is exactly three! |
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| 10/22/2024 7:05 AM | |
Joined: 6/2/2024 Last visit: 12/4/2024 Posts: 1 Rating:
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Did you finally get help on this ? I am facing the same situation where by when you adit on the HMI and try to save it does not instead it retains the default values that are on the program .Kindly help if anyone has a way out of this one . |
| 10/30/2024 9:07 PM | |
Joined: 11/12/2008 Last visit: 3/29/2025 Posts: 221 Rating:
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Also I could not understand you, but accually when we need any event in value changing we use Cahnge value of tag, and can assign script for your actions. you can use DO While or DO Until. hope it's clear |
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HASSAN.S POJAILA |
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