Control specialist Festo has released an I/O box for data interchange between electrical and pneumatic controller levels that is compatible with all fieldbus protocols and also with customer-specific installation standards.
A successful communicator at all levels; the CPX modular electrical terminal presents a truly professional image as an electrical peripheral device for valve terminals. Compatible with all commonly used fieldbus protocols and capable of being adapted to customer-specific connection concepts, it simplifies communication between sensors, valve terminals and the electrical controller level.
Depending on the system concept involved, CPX can be combined either with MIDI/MAXI valve terminals to provide a high degree of modularity for harsh environments or with CPA valve terminals subject to normal mechanical stresses, to provide optimum triggering of actuators. The open design of CPX, with its ability to fit quickly and easily into all kinds of applications, makes costly special designs unnecessary.
Installation is simple, thanks to the optimised design principle. The CPX has a physically separate connection panel and electrical section. This separation of the connector block, electronics module and manifold block allows permanent wiring while still permitting fast replacement of the electronics module and thus more efficient rectification of faults.
Early detection of faults prevents downtime. With its diagnostics and preventive maintenance function, the CPX terminal helps enhance machine availability. It supports module- and channel-specific diagnosis, such as undervoltage detection for outputs and valves, short-circuit detection for sensors and valves and open-load detection of missing valve coils. The diagnostics capability of the CPX is combined with a memory facility that allows the CPX to store the causes of the most recent 40 faults, with data on the start and end of these. This makes it much easier to carry out fast faultfinding in electrical installations.
The CPX can be used in conjunction with Festo's CP installation system to create distributed structures consisting of valve terminals, the CPX itself and actuators and thus achieve faster cycle times. A particularly practical benefit is the small amount of wiring work required - an important factor for users in the food industry and process automation.
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