AS-i modules provide a simple connection between Rockwell PLCs and AS-i field devices

The AS-i modules provide an open fieldbus solution that is said to provide an easy connection between the PLC backplane and simple field I/O devices such as actuators, sensors, rotary encoders, analogue inputs and outputs, push buttons, and valve position sensors. The modules are suitable for multiple industrial automation applications, including conveyor control, packaging machines, process control valves, electrical distribution systems, airport carousels, elevators, bottling lines and food production lines.

 “One of the benefits of the AS-i modules is the simple and easy installation process due to the two push button design and integrated display,” explained George Kairys, global product manager at Molex.  “Ultimately, this speeds up the commissioning process so that downtime, whether it is planned or not, is minimised.”

The chassis mountable modules and can interface with signals coming from AS-i field devices, transfer that information to the PLC and send control information back to the AS-i actuator. They meet the new AS-i specification 3.0, making them compatible with legacy versions as well as the very latest AS-i products.  They also feature a fast AS-i cycle time, which is suitable for high-speed, machine control applications.   

The modules come bundled with cables and configuration software, and include diagnostics that help identify configuration errors and network faults, further reducing commissioning and downtime.