The fieldbus protocol ABB SPA-Bus was defined by ABB Stromberg as a simple, ASCII-based protocol for substation automation.

The ABB SPA-Bus protocol is used worldwide.

ABB SPA-Bus is a fieldbus protocol applied to substation automation Through a simple protocol design, protection devices can be integrated rapidly and at a low cost.
The messages are generally transmitted through serial connections.

COMPROTware:Testtool offers in this protocol:

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