A gateway for Modbus TCP and Modbus ASCII/RTU

Features:
Supports 1 serial RS-232/422/485 serial ports
DIN rail or Panel mount 
Supports 10/100 Mbps Ethernet 
Supports LAN and WAN communications 
Management access password protected 
Supports up to 8 MODBUS TCP master to MODBUS RTU/ASCII; Queries from different masters are pipelined and handled independently without disrupt each other 
Supports MODBUS RTU/ASCII master to link up to 8 MODBUS TCP clients 
Supports inactive timeout to shutdown connection for allowing accepting next connection 
Supports loop back mode. Data is echoed back for easily testing the connection

Other Modbus Gateway series are also available:
MODport102:
supports 1-port RS232/422/485,
and 1-port RS232,
Serial Device Server
MODport111:
supports 1-port RS232/422/485
Serial Device Server
with 5 pin terminal block
MODport112:
supports 2-port RS422/485
Serial Device Server
MODport104:
supports 4-port RS232/422/485
Serial Device Server
MODport108:
supports 8-port RS232        
Serial Device Server