Timer Variables (Current & Keypad Entry)

[ohaldi]

I'm new to ladder logic and I have a question about Timers.

I have a variable 4 (Timer T10) who should count down a predefined time.

If I set this variable type to Current then the IHM show me the time.

If I set it to preset then I can change the time with the keyboard but the IHM do only show the value.

But the count down do not work anymore.

Question: How can I use this same variable as input for the keyboard and should show the count down on the display?

I'm not using the same IHM for the input and the count down.

Many thanks in advance for any help.

Regards

Otto

[Jenkins]

I'm new to ladder logic and I have a question about Timers.

I have a variable 4 (Timer T10) who should count down a predefined time.

If I set this variable type to Current then the IHM show me the time.

If I set it to preset then I can change the time with the keyboard but the IHM do only show the value.

But the count down do not work anymore.

Question: How can I use this same variable as input for the keyboard and should show the count down on the display?

I'm not using the same IHM for the input and the count down.

Many thanks in advance for any help.

Regards

Otto

Make 2 displays that essentially look the same but one is current and one is preset with the keypad entry forced. For example, screen shows the current value, pressing Enter jumps to a similiar screen but the variable is the preset and once entry is completed jump back to display with current value.