I have some basic problems with strings.
In old program for S200 (first page in attachment) I used STR_CPY instruction, and then I called VB address on my panel.
In S7-1200 transition manual I found that STR_CPY is replaced with S_CONV with string as input and output. But when I choose String as Input I don't have choice in drop down menu to choose String as output.
Another thing, how can I call string Data type on my KP 300 panel, so when M6.0 is true, on my panel should be written STOPED.

kijo

I have some basic problems with strings.
In old program for S200 (first page in attachment) I used STR_CPY instruction, and then I called VB address on my panel.
In S7-1200 transition manual I found that STR_CPY is replaced with S_CONV with string as input and output. But when I choose String as Input I don't have choice in drop down menu to choose String as output.
Another thing, how can I call string Data type on my KP 300 panel, so when M6.0 is true, on my panel should be written STOPED.

 I think the command you want is s_move.  s_conv converts to another format, s_move just moves a string to another string.

Regarding the text field, depending what you really want to do, create a text list with the values you want to display, for example running and stopped.  Then use a symbolic I/O field to reference the text list based on a your m6.0 bit.  You can also make a longer list and use an integer to call the text entry.  

S_MOVE instruction doesn't help me.

In attachment you can find logic of old program, depending on conditions 6 different strings are written on same location. And then I call that address on my screen. I need instruction that replace  Simatic Step 7 STR_CPY instruction  the best.

Is there anyone who can help me with this problem.

I think this isn't such a big problem for more experience users. And I suppose that this is a  program logic that is common in use.

Thank you in advance for helping.