PLCnext Engineer HMI Text Input LImit

PLCnext Engineer
1

I would like to offer a Text Input Dynamic for a screen that checks the operator input for limits. For example, if the operator must enter a percentage, they should be limited to 0-100%. If they enter a value outside that range, it is rejected.

I remember this on WebVisit, but cannot find it in PLCnext Engineer HMI.

2

Hello!
You have to verify accuracy of input on the plc-side.
As variant, use LIMIT() function
For instance
//Some FB intended to process HMI advanced functionality on the plc-side…
HMI_val := LIMIT(0, HMI_val, 100);

3

Hi,

I’ve added two ‚Action on Data‘ Dynamics on a Text Input.
With this the HMI can handle it without the need of the PLC.
Limit.png