Channels are the bridge between PyDM Widgets and the different Data Plugins provided.
Usually channels are specified in the following format:
protocol is a unique identifier for a given Data Plugin used with PyDM
channel address will vary depending on the data plugin. Every plugin
should document the expected address format for users.
Here are some examples:
ca means the Channel Access plugin and
MTEST:Float is the PV name in this case.
Another example is the Archiver Appliance plugin in which channels are specified as:
In which everything in the
channel address section is the same as what is sent
retrieval part of the Archiver as specified at the Retrieving data
using other tools section of the Archiver Appliance User Guide