Project catalog

go-bacnet

BACnet/IP client: discovery, properties, COV and alarms, routed networks and foreign-device registration.

go-iec104

IEC 60870-5-104 controlling and controlled station, with the full APCI state machine and redundancy groups.

go-iec61850

IEC 61850 client and server with logical nodes, reports, controls and SCL as first-class Go types.

go-mms

MMS (ISO 9506) client and server, the transport underneath IEC 61850.

go-modbus

Modbus client and server: TCP, RTU, ASCII, TLS and UDP, typed register codecs, pooling and retries.

go-opcua

OPC UA client and server: secure channels, subscriptions, events, methods and historical access.

go-s7comm

Siemens S7 client: read and write DBs, inputs, outputs and markers, discovery and SZL diagnostics.

go-sunspec

SunSpec over Modbus: discovers 112 built-in models and decodes typed, scaled values. Includes the sunspecctl CLI.

bacnetctl

Discover BACnet devices, list point lists, read, write at priority, monitor COV and inspect alarms.

iec104ctl

Interrogate, monitor and command IEC 104 stations, transfer files, or simulate an RTU from YAML.

iec61850ctl

Browse IED data models, read and write, operate controls, subscribe to reports and parse SCL.

modbus-simulator

Deterministic, stateful Modbus TCP device simulator driven by JSON fixtures, for integration tests.

modbusctl

Identify, fingerprint, scan, poll, decode and write Modbus devices. Record to MCAP and replay as a simulator.

opcuactl

Discover, browse, read, write, call methods, monitor, read history and export from OPC UA servers.

s7commctl

Siemens S7 command-line client for ISO-on-TCP (port 102).

go-cotp

COTP TP0 transport service over RFC 1006, plus a full X.224 TPDU codec.

go-serial

Cross-platform serial ports for RS-232 and RS-485, with a Modbus RTU preset.

go-tpkt

TPKT framing for RFC 1006 and RFC 2126 transport profiles.

go-otfp

OT protocol fingerprinting from transport framing and handshake behaviour, without application-layer requests.

bacnet-interop

BACnet/IP reference devices: BACnet Stack, BACpypes3, BACnet4J, System.IO.BACnet and Worldiety.

iec104-interop

IEC 104 reference stations: lib60870, OpenMUC j60870 and wendy512.

mms-interop

MMS and IEC 61850 adapter images for libiec61850 and IEC61850bean.

modbus-interop

Modbus TCP reference stacks: libmodbus, PyModbus, digitalpetri, NModbus and tokio-modbus.

opcua-interop

OPC UA reference clients and servers based on open62541 and Eclipse Milo.

snap7-interop

Fixture-driven Snap7 servers (native and pure Python) for testing S7 clients.