Protocols and Vendors

Protocols and Vendors

0xSCADA speaks the real field protocols and integrates the major PLC vendor stacks, so it can sit in front of existing industrial equipment rather than requiring a greenfield deployment.

Industrial protocols

Protocol docs live in docs/protocols/:

Protocol	Role	Doc
OPC-UA	Server + client; the day-one integration surface for most modern equipment	docs/vendor/opcua-driver.md
Modbus TCP	Server + driver (read/write coils & registers)	docs/protocols/modbus-driver.md
DNP3	Outstation	docs/protocols/dnp3-outstation.md
IEC 61850 GOOSE	Subscriber	docs/protocols/iec61850-goose.md
MQTT Sparkplug B	Edge/pub-sub bridge	docs/protocols/sparkplug-b.md

Security posture: protocol servers are network-facing on an ICS, so they are held to a fail-closed standard — safe bind defaults, authentication/authorization in front of any write/actuation path, and bounded input handling. New protocol work is reviewed with an attacker's mindset (see QE Methodology). If you're contributing a protocol server, default the bind to loopback/explicit host (not 0.0.0.0), gate writes behind auth, and cap connections/PDU sizes.

Vendor adapters

Multi-vendor PLC support, with adapter and integration docs in docs/vendor/:

• Rockwell (L5X / AOI)
• Siemens (SCL / TIA XML)
• ABB
• Schneider
• GE

Adapters translate between the platform's neutral model and each vendor's code/format, and can generate vendor PLC code from ISA-88-style blueprints. General guidance: docs/vendor-adapter-guide.md.

Edge integration

The vendor docs also cover edge deployment patterns — containerized edge, edge-gateway integration, identity hardening, audit traceability, and metrics visibility. Start at docs/vendor/architecture-onboarding.md.

AVEVA Optix

Extensive integration documentation for the AVEVA Optix HMI platform lives under docs/optix/ (12 docs).

Compliance mappings

Because these protocols run in regulated environments, the platform ships compliance mappings — IEC 62443, NIST CSF, and 21 CFR Part 11 — under docs/compliance/.