Password: Keypad Entry

Note ♦

SB 250, Keypad Entry within Limits, turns ON when a password is correctly entered; SB 251, Keypad entry exceeds limits, turns ON when a password is incorrect. You can use the status of these bits, for example, to provide a jump condition to another Display. When either of these SBs turns ON, the index number of the active variable is stored in SI 249.

 

1. Select Password from the Numeric menu, and drag your cursor across the screen to create the Password field.

2. Click Link to assign either a Constant value or DW. Note that selecting DW also enables you to set the number of asterisks shown in the Password field.

 

Note ♦

Standard Vision division: When an HMI keypad entry variable is active, and the Enter key is pressed on the controller keypad, SB 30 Variables Locked turns ON. This can be used as a Jump condition.

The Password field is a touch-screen button. When the user touches it, the virtual keypad appears, enabling the user to enter the password.

1. Select Password from the Numeric menu, and drag your cursor across the screen to create the Password button.

2. Assign Display text to be shown within the button. If you leave this blank, asterisks will be shown in the button by default.

3. Click Link to assign either a Constant value or DW.

4. Assign an MB to Legal Entry; this MB will turn ON when the correct password is entered. You can use this to jump to another Display.

 

 

Note that you can limit the number of attempts by using SI 45 Numeric Key Entry Out of Limit - Counter of Attempts (Enhanced) to jump to another Display.