Data Architecture

  • PyDM widgets are data-source agnostic, and communicate with the PyDM Application through Qt signals and slots.

  • The PyDM application routes data between the widgets and data source plugins.

  • A data source plugin speaks to a particular source of data (EPICS, HTTP, modbus, databases, etc).

  • This system makes it possible to mix-and-match different data sources within the same display, using the same widget set.

PyDM Data Plugin Architecture