A new control product from Modicon is designed with an open architecture, allowing it, the company says, to fulfill many roles in a variety of automation strategies. Such strategies include: PC-based control, distributed-control systems, and stand-alone PLC systems. Called Momentum, the product consists of devices which interchangeably snap together to form different automation control elements. Flexibility is the system's strength, and Momentum is adaptable to all of today's open, popular field buses and networks as well as network and bus standards of the future. Modicon from Schneider Automation, Product Code 4300.