Epics Library Documentation

epics.get (*PV*[, timeout])

Calls ca_get to retrieve the value of a PV accessible by the host.


PV          [string] - The name of the PV to request.

timeout     [number] - Amount of seconds to search for pv before giving a timeout,
                       default is 1.0 (can be fractional).


Returns the value of the PV given or Nil if the PV cannot be reached.

epics.put (PV, value)

Calls ca_put to set the value of a PV accessible by the host.


PV          [string] - The name of the PV to request.

value       [varies] - The new value you want to set the PV to. The type of this
                       parameter should match with the dbtype of the PV requested.

epics.sleep (seconds)

Tells the epics thread running the lua script to sleep for a given time.


seconds     [number] - Amount of seconds to sleep for (can be fractional).

epics.pv (PV)

Returns a table representing a PV object. Index accesses can be used to retrive or
change record fields. These changes are completed through ca_get or ca_put.

PV          [string] - The name of the PV to request.