ACFA01 series plug-in I/O modules are composed of coupler module, I/O function module, relay power module, common end module and end cover, among which the I/O function module is divided into digital, relay, analog, pulse output, encoder, temperature, communication and other types and points of function module, customers can match according to the site requirements, support mainstream EtherCAT, PROFINET, CC-Link, and other communication protocols, which are widely used in various bus applications.