i want to create a password for button how to create the password
i tried to create a input field as string and in the property ref iam not able to keep the variable here we are using the abb800xa v5.0
can you please help me how to create pg2 expression variable to store the operator entry .
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What you're trying to do is fundamentaly a BAD idea. Your "password" will provide no security AT ALL because it will be known be everyone in the plant about 30 seconds after you walk out of the door. All it will do is make it take 2 or 3 seconds longer to press the button.
For proper security of roles, privileges, graphics access, write access to tuning parameters etc, read the relevent sections of the 800xA Security Manuals and implement write protections in the AC800M controller code along with appropriate user roles.
To store strings ( or anything else ) you can either write them to a controller variable or to a property defined in a "General Properties" aspect. General Properties work exactly the same as controller variables, except the are only stored in the Aspect System - not in a controller. String exchange between the Graphics and the AC800M controllers is quite slow so you will find a General Properties aspect works better.