I assume that SS0 looks good in Designer when you turn status On in your ladder, or put SS0 in a Data View. Make sure it is formatted like you want/need there first.
If that's true, you need to make sure you have the right driver in C-more. It needs to be the Do-more driver, which should understand the SS data block (e.g. SS0, SS19, etc.). It should work whether SS0 contains "1.234E-4" or "Hello, world!".
Let us know
1. you see the right text in Designer
and/or
2. you can see "Hello, world" (or any SS string) in C-more