I set the digital miner over a known ore location and used the ore dictionary that is provided in the in-game menu (I think the default is "I"). The digital miner will consume power and show the number of ore available but does not pick any ore up and the number of ores present remains the same.

I tested this on single player and it worked right away. The digital miner is supposed to magically teleport the ores into its inventory and can also detect ores based on the parameters you set. You can set the radius up to 32 and from lowest point to build height.

If anyone can test this and verify if it works or not I will be thankful.