https://github.com/pascaldekloe/part5

IEC 60870-5 — transmission protocols
https://github.com/pascaldekloe/part5

iec101 iec104 iec60870 rs232 rs485 scada serial-communication

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IEC 60870-5 — transmission protocols

• Host: GitHub
• URL: https://github.com/pascaldekloe/part5
• Owner: pascaldekloe
• License: other
• Created: 2017-09-29T15:53:29.000Z (about 7 years ago)
• Default Branch: master
• Last Pushed: 2024-08-11T15:48:20.000Z (3 months ago)
• Last Synced: 2024-10-20T09:14:05.558Z (24 days ago)
• Topics: iec101, iec104, iec60870, rs232, rs485, scada, serial-communication
• Language: Go
• Homepage:
• Size: 365 KB
• Stars: 52
• Watchers: 11
• Forks: 16
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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# Part 5 With The Go Programming Language

The International Electrotechnical Commission standard 870 part 5 (IEC 870-5) is

a set of transmission procedures intended for SCADA systems. The publication got

reissued with a designation in the 60000 series as of the year 1997. Refer to

IEC 60870-5-101 for serial communication, and IEC 60870-5-104 for the TCP-based

evolution. The two are commonly abbreviated as IEC 101 and IEC 104 respectively.

The project consists of a Go library and a command-line tool called iecat(8).

This is free and unencumbered software released into the

[public domain](http://creativecommons.org/publicdomain/zero/1.0).

📢 Call for testing! Help on issue #5 needed. 🚧

## Definitions

At its essence, part 5 formalizes reliable means to exchange measurements and

commands. Commands are used by controlling stations to cause a change of state

in operational equipment.

Controlling stations are called *primary* and the controlled stations are called

*secondary*. With *unbalanced* transmission one station is primary and the other

is secodary, a.k.a. master/slave, and with *balanced* transmission stations can

both act as primary and as secondory, a.k.a. peer to peer.

Every *information object address* resides in a *common address*. Primaries may

acquire the information present in a common address with an

[interrogation command](http://godoc.org/github.com/pascaldekloe/part5#Command.Inro).

For example, command `iecat -host station1.example.com -inro 42` interrogates

the host address on common address 42.

## iecat(1)

The command prints inbound data units on the standard output. It should read

commands from the standard input for outbound submission, once implemented.

Run `go install github.com/pascaldekloe/part5/cmd/iecat@latest` to build the

command into the bin directory of `go env GOPATH`.