Correction: PLC providers

Siemens, AutomationDirect, ABB, and Omron should have been on the list of leading vendors in Product Research, November 2006, p. 72. The December Machine Control e-newsletter includes products from those companies. The leading PLC providers, according to the research are: Rockwell-Automation, Siemens, GE Fanuc, AutomationDirect, Schneider Electric, ABB, Omron Electronics, Opto 22, Mitsubishi Electric, Keyence, Eaton, Beckhoff Automation, Wago, Phoenix Contact (Entivity), Moeller Electric, and Baldor Electric. Read the article “Product Research: PLC Users Like What They Have” at www.controleng.com/archive .

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