PSRT — Industrial WAN telemetry protocol and server

PSRT is a real-time publish/subscribe protocol and server designed for reliable data exchange between distributed industrial systems over wide-area networks.

It provides predictable latency and stable operation even on slow or unstable links, supports large payloads and large signal counts, and allows sites to reconnect and resynchronize safely after interruptions.

The server includes authenticated and encrypted communication (TLS), detailed connection diagnostics and scalable subscription handling suitable for multi-site telemetry aggregation.

PSRT protocol identifier is registered with IANA.