Proven and trusted in thousands of Modbus applications. Operating Modes: Virtual Com, Serial Tunnel, TCP Server, TCP Client, UDP, Modbus Gateway Serial port (RS232/RS485/RS422) and Ethernet port (10/100 Mbit) Connect up to 32 Modbus RTU slaves per port. Dual redundant Ethernet support with recovery time< 10ms Configurable by Web-based and Windows utility Available in 1,4,8,16 Serial ports.