Logo! CIM Communication Interface Module for Logo! 8 Modbus RTU Interface (RS232/485) 4-Port Switch, without 4G/LTE/GPS Engine, without Antennas, Web Configurator. The Logo! CIM communication module is an expansion unit for the Logo! 8 logic module and compactly combines multiple communication protocols in one device. Integrated into the housing is a 4-Port Switch for connecting additional devices via Ethernet. A Modbus RTU and TCP interface allows for the connection of corresponding sensors. Also integrated are a SIM card slot (4G/LTE) and an mPCIe slot for 4G/LTE module engines. This enables communication, for example, with the AWS Cloud, even when no LAN infrastructure is available. The NTP function and the GPS receiver, which can be expanded via mPCIe, are prerequisites for time synchronization and the collection of position data. When used with a 4G/LTE engine, IPv4 and IPv6 addressing is supported. To achieve full functionality, especially in mobile communications, the CIM module can be expanded with antennas and a 4G/LTE engine. Tested engines are available for the frequency ranges of different regions, allowing the module to be used almost globally. Details on the recommended antennas and LTE engines can be found in the CIM module manual.