Use this page if you wish to use the TLS client and/or server function of the FP‑I4C unit.
TLS client/server is a protocol that encrypts communication in a network. It can be used to ensure secure data transfer when using vulnerable protocols such as Modbus or MEWTOCOL.
Enable the TLS client function and make the communication settings.
The TLS client uses either the public key authentication method or the client authentication method to connect to a TLS server. The TLS client provides a TCP server (non-TLS server) that listens to a port. Any TCP client (e.g. Modbus, MEWTOCOL) can connect to this TCP server and request data from the TLS client.
Enable the TLS server function and make the communication settings.
The TLS server uses either the public key authentication method or the client authentication method to verify the identity of a TLS client. The TLS server provides a TCP client (non-TLS client) that can connect to any TCP server (e.g. Modbus, MEWTOCOL) and receive requests from a TLS client via the TLS server.