Rockwell Automation Inc. has acquired a British software company to improve its offerings to its customers. Rockwell (NYSE: ROK) announced the acquisition of Reading, England-based Emulate3D Monday, but did not disclose financial details. Emulate3D is a software development and sales management company that produces technology that allows companies to virtually test machine and system designs before committing to final designs. "We are excited about the opportunities that Emulate3D's software...