In the online open source library at http://www.oscat.de/images/OSCATBasic/oscat_basic333_en.pdf 

you can find the "DELAY" FB that may be what you are looking for.

Bjs20111

How can you delay the output signal in relation to the input signal in STEP 7

I’m trying to find a solution to delay my output signal (REAL) in relation to my input signal (REAL). I see that V11 had a function block for this but I cannot find anything for V16 (Yes we’re still using V16). Attached is download link for V11.

https://support.industry.siemens.com/cs/document/48934720/how-can-you-delay-the-output-signal-in-relation-to-the-input-signal-in-step-7-(tia-portal)-v11-?dti=0&lc=en-WW

I have successfully used many of the oscat open source blocks.  Some require modification.  Some work in s7-1500's as is.  Some require minor adjustments to work in s7-1200/1500. Some could use customization to work better in s7-1200/1500 using instructions built into those PLCs.

If any given FB/FC has a dependency block, it is listed in the code you will import using "external source files" in the project tree.  Those need to be imported as well. If any of those blocks have dependencies, they also need importing.  When it comes to timing blocks, that's when you tend to see dependency blocks that might benefit from or require modification to work on s7-1200's since some SCL instructions are not available for the s7-1200.

Bjs20111

Yes I believe that will work, now I need to figure out how to access this library in TIA Portal. Do you know if OSCAT FB's work with s7-1200's?

Thanks in advance