ZLAN5143D is a kind of RS485 to Ethernet Converter Modbus RTU TCP Gateway industrial serial to ethernet converter specially designed for industrial environment, which integrates serial port server, Modbus gateway, MQTT gateway, RS485 to JSON and other functions. It has an RS485 interface and a 10M/100M Ethernet interface. It uses guide-way type installation way, the volume is compact and installation is convenient. Terminal type power supply access, 9~24V wide voltage input. Because there is only RS485 interface, the RS232 interface which is not commonly used on industrial instruments is cancelled, which saves the cost and volume and has a higher cost performance ratio compared with ordinary products.   port TCP server, TCP client, UDP mode, UDP multicast. Support TCP server side function as TCP client. Support 30 TCP connections as a TCP server and 7 destination IP as a TCP client. 2)    The baud rate supports 1200~115200bps, data bits support 5~9 bits, and parity can be None, Odd, Even, Mark, Space. CTS/RTS hardware flow control and XON/XOFF soft flow control.   4)    Provide search, configure the device secondary development package DLL on PC. 5)    Support Web browser configuration, support DHCP dynamic access IP, DNS protocol connect domain name server address. 6)    Support remote search device, configure device parameter, device program upgrade on cloud. 7)    Support remote viewing of TCP connection status, serial port data sending and receiving status of devices through software. Virtual serial port supports data monitoring.