looking for PG 615 user manual

Hi;
I need to make some changes in PLC program. I have SIMATIC S5 115U CPU 941 with 8k memory submodule (EPROM) in it. Also I have a new empty memory submodule, hand-hold programmer PG615U with operating sistem module inserted, but I don't have any manual instructions for it. I've searched in support.siemens... and all the web, but there is no manuals for PG615.
I've sucsessfully transfered program from PLC to my PC, made some corrections, but now I don't know is it possible (and, if it is, then how?) to transfer program from PC to PG615, or I have to transfer program from PLC directly to PG615 and then make corrections?
Is there anyone who can help me with this, please?

Hi Andrej,
I have a machine with a SIMATIC S5 100U. I am trying to read the program inside, but the step 5 sw does not work.

Somebody told me that a PG615 should be capable of Reading it.

If I send you the subrutine in the memory, could you read it? Could you also print the subrutine in pdf format and send it back to me?

Thanks