The EP3744 EtherCAT Box A is a compact, all-in-one solution for monitoring and controlling compressed air. The IP 67-rated module combines compressed air measurement, EtherCAT connectivity and digital I/Os for use directly in the process, outside of electrical cabinets. In addition to six digital inputs and two digital outputs, the EP3744 EtherCAT Box has four pressure inputs with integrated 6-mm fittings. The pressure is measured as the difference to the fifth pressure connection, which is fed via a hose into a protective housing for IP 67 conformity. The measured data are provided in the form of 16-bit values which are transmitted in an electrically isolated manner to the controller. The measuring range is 0 to 1 bar (15 psi), with a resolution of 1 mbar per digit. — Beckhoff Automation GmbH, Verl, Germany