As ABB 800xA control system communication interface, CI867K01/AK01 can be used to connect an AC 800M controller to external Ethernet devices using Modbus TCP protocol. CI867K01/AK01 expansion unit contains the CEX-Bus logic, a communication unit and a DC/DC converter that supplies appropriate voltages from the +24 V supply via the CEX-Bus. The Ethernet cable must be connected to the main...