I 2nd Damorim's thought to download the Profis software, it is pretty easy to use and will automatically check whether your edge distance to concrete is acceptable. Also, note the following:
1) Profis allows you to input a steel base plate, if that's the scenario at hand, more for context than any other reason. It doesn't actually perform any stress checks on the base plate or check the steel edge distances.
2) Sometimes it is beneficial to try decreasing your anchor size if you're running into concrete edge distance issues, as larger diameter anchors require more edge distance per Hilti. This is especially helpful in a scenario where the check on the steel strength is showing a value many times greater than the required strength.
3) Note that you can select the applicable version of ACI 318 via pull-down menu. As an FYI, mine seems to open on ACI 318-08 by default, despite being the most recent version of the program.