I assume you mean gen_scheme, right?
Also, the directions in DW scheme generated by gen_scheme are unit normalised – I assume you mean that they need to be scaled for use on the a Siemens system? If so, the post suggested by @ThijsDhollander is spot on. If you follow the links, you’ll find a quick script to convert the output of gen_scheme to Siemens format with the appropriate scaling buried somewhere in this post.