Siemens S7-200PLC serial port to Ethernet adapter. Used to connect S7-200PLC to Ethernet or Internet through RS485 programming interface without changing the existing communication protocol and software; Support up to 96 master stations (computer, touch panel, PLC master, etc.); Real-time monitoring of PLC; Remote control and maintenance of PLC through the Internet; Industrial grade design; Network interface-serial port isolated; Working temperature: -40-+85C; DIN35 standard lead rail mounting.