co⚡e: Sparkplug™ MQTT edge

CODESYS + MQTT + Sparkplug B = 'Plug & Play' IIoT

Brought to you by: hermsen, i-campbell

MIT License

Status: open

Owner: nobody

Labels: None

Updated: 2019-09-13

Created: 2019-09-13

Creator: aliazzz

Private: No

The 'A' and 'B' qualifiers differentiate payload encoding formats.
The following points show the similarities and differences between the two:

**Important note! Sparkplug A has been deprecated. **

Both A and B use the same topic format with a qualifier as the first token in the topic namespace to denote the payload encoding format
The message flow of both A and B is the same
The only difference is the payload encoding format.
Both formats are open source
Both are based on Google Protobuf definitions
Sparkplug A uses Eclipse Kura's payload definition found here: https://raw.githubusercontent.com/eclipse/kura/develop/kura/org.eclipse.kura.core.cloud/src/main/protobuf/kurapayload.proto
Sparkplug B uses an expanded definition allowing for more metadata found here: https://raw.githubusercontent.com/Cirrus-Link/Sparkplug/master/sparkplug_b/sparkplug_b.proto