Despite the rise in the markets this year, there are still great value stocks to be found.It's a good idea to buy stocks that have solid upside potential and limited downside. And I think automation technology company Emerson Electric (EMR 1.25%), water products company Pentair (PNR 1.95%), and industrial conglomerate 3M (MMM 1.34%) are ideal candidates in this regard. Here's why.Emerson Electric is an outstanding value stockManagement's decision to focus the company on automation and adjacent markets like ...