PortBloque E is a specialized firewall that protects serial Modbus devices from Internet attacks. It combines firewall operation and Modbus TCP/UDP deep packet inspection (DPI) to block everything that’s unwanted or harmful. The simple web interface makes setup easy. Operators can control Modbus traffic by slave IDs and function codes, and block a command that repeats too soon. Additionally, operators can define a permissible range of slave registers and values to prevent malicious memory access. The integrated Modbus IP-serial converter offers the flexibility and convenience of Internet enabling serial devices.
- August 13, 2024
