7146 supports one RS232/485/422 to WIFI, can be as a STA or AP mode. There is no Ethernet interface (RJ45 is for future extended use). Support Modbus TCP to RTU, support sending heartbeat packets, registering packages and transcoding scripts. Advanced Software Function The 4 in ZLAN7146 means it supports advanced software function, including: 1) Support Modbus gateway function, support Modbus RTU to Modbus TCP. Can support storage Modbus, and can automatically collect the equipment data. Also can support non-storage Modbus gateway. 2) Support for multiple hosts: the network port allows multiple computers to access the same serial port device at the same time in ask-answer query mode. 3) Support for custom heartbeat and registration package features: easy to do communication with the cloud and device identification. 4) Support function of needing password authentication when TCP establish connection to ensure connection security. 5) Support "transcoding" function, which can realize the translation of protocols for specific devices and allow different devices to connect to the unified software platform. 6) The data submission and sending function in HTTP mode is supported, and the cloud can directly use HTTP GET instructions to interact with the serial port data of the device.