LONDON -- Invensys PLC (ISYS.LN), a maker of rail signaling and industrial automation systems, is evaluating options including a sale after Emerson Electric Co. (EMR) expressed interest in buying some or all of the company, Bloomberg reported Wednesday, citing people familiar with the situation. The news agency quoted one of the people as saying Emerson is mainly interested in Invensys's Foxboro unit, which makes meters and control systems, and not the British company's rail unit, although Emerson could consider a deal for the whole of Invensys to get control of Foxboro. Invensys hasn't received a firm offer from Emerson, Bloomberg said. Advisers to Invensys have spoken to companies including Siemens AG (SI) and General Electric Co. (GE) about a sale of some or all of its businesses since Emerson's approach, Bloomberg cited the people familiar with the situation as saying. At 1516 GMT, Invensys shares were up 25.5% at 251.5 pence. By Steve McGrath, Dow Jones Newswires; 44-20-7842-9284; steve.mcgrath@dowjones.com; Twitter: @SteveMcGrath1
