Tango shutter is_closed property could be smarter
Isabelle Kieffer wants to use
is_closed property of Tango shutters but find it to be limited because Tango shutter can have more states than
CLOSED to indicate the shutter is actually closed.
For instance when the door of the hutch is open, the shutter is obviously closed but
is_closed returns False.
FrontEnd Example on ID21 during a MDT:
CYRIL : fe._control Out : DeviceProxy(acs.esrf.fr:10000/fe/master/id21,139998361132560) CYRIL : fe._control.state() Out : tango._tango.DevState.STANDBY CYRIL : fe.is_closed Out : False CYRIL : fe.is_open Out : False