At best, the use of the Ethernet at the device or I/O level is in the “early adopter” stage, with the level of rhetoric vastly exceeding the amount of real-world shipments, according to a new study from ARC Advisory Group (Dedham, MA).
New PC840 servo drives series from Pacific Scientific (Rockford, IL) use SERCOS interface for closed-loop, real-time distributed control. The SERCOS chip ensures each drive receives update commands, such as positioning, velocity, or torque, from the controller as fast as every 500 microseconds.
All Sato’s (Sunnyvale, CA) industrial printers use plug-in interface cards for maximum flexibility. They can be easily changed in the field in a matter of seconds to accommodate any common host interface, including USB, Ethernet, and IEEE 1284 company says.
The Sanyo Denki SMS-10 stand-alone controller and PV-series servo system offer tightly coupled motion and logic control in an extremely compact package that the supplier claims is the world’s smallest motion control system with SERCOS.
The Interbus Inline product family from Phoenix Contact (Harrisburg, PA) can be used in central control cabinets or distributed terminal boxes. Interbus can integrate signal conditioning and full network communications into small, modular housings.
End users responsible for implementing factory automation systems and their suppliers may find beneficial a study titled “Distributed Intelligence Architecture for the Factory of the Future.” From ARC Advisory Group (Dedham, MA), the study analyzes, compares, and forecasts the future of the PLC in the age of distributed control to help guide users in systems design, and to help suppliers plan new products based on end-user needs.