Building blocks

go-cotp

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

Install

go get github.com/otfabric/go-cotp

IEC 61850 / MMS: The data model and communication standard for substation automation, carried over MMS on TCP port 102.
Siemens S7: Classic S7 communication with Siemens PLCs, for reading and writing data blocks, inputs, outputs and markers.

The README on GitHub has the full feature list, examples and changelog.

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

go get github.com/otfabric/go-iec61850

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

go get github.com/otfabric/go-mms

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

go get github.com/otfabric/go-s7comm

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

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

TPKT framing for RFC 1006 and RFC 2126 transport profiles.

go get github.com/otfabric/go-tpkt

MMS and IEC 61850 adapter images for libiec61850 and IEC61850bean.

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