New line in string

PLCnext Engineer
1

Hi Team, I have a text in the eHMI and would like to fill it with data from the PLC. Every event will be on a seperate line. Is there a way of adding a New Line (like \ , 16#0A etc) into the string that is converted to a new line character in the eHMI? Thanks in advance, Carel

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2

Hi, You can use the formatting option in the TO_STRING function to generate CR+LF characters, which you can concatenate to a STRING, something like in this answer: https://www.plcnext-community.net/en/discussions/how-to-insert-cr-lf-into-string.html

3

Hi Martin, That was it, thanks! Carel

4

Hello Martin,

I tried this solution with CR LF, and it shows the string with a new line, but then in the HMI I still have only one line.
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I tried as well the solution proposed in the other post but nothing, same problem, in the HMI i still have only one line
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As last I tried the simpe escape character \
or N but still the same as well.
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I’m using the latest PLCnext engineering 2023.0.1.
Do you have any idea why in the HMI i’ll always get only one line and cannot split or create a new line?

Thanks in advance
Marco

5

I’m using PLCnext Engineer 2023.0.

I created a new project for AXC F 1152 version 2022.0.
In the Main program, I created a STRING variable with the HMI attribute checked:
image.pngI set the STRING variable to a string with a line break:
image.pngI created a new HMI page and set it as the Startup page.
I added a Text box to the page, then added a Text dynamic to the object that is connected to the STRING variable in the instance of the Main program.
image.pngWhen I send the project to the target and open the HMI page, the string is displayed with the line break:
image.pngI hope this helps you to identify what you’re doing differently.

6

Found the bug, thanks Martin!