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Oldskuler

Password box in HMI

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Hi,
I wanted to protect some info on my HMI using Password Box, but I can't figure out how do I choose password?

I tried to use Compare Strings in ladder, but I can not compare tag that I used for Password Box, because second element in Compare Strings block can not be constant value (in my case correct password, which must be constant number). Can someone give me some tips about this?

Thank you in advance.
Cheers!

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