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workaround when magnet setpoint = readback

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This commit is contained in:
Xiaoqiang Wang 2023-05-17 13:08:08 +02:00
parent c8c642c8bc
commit c5b5b64356
1 changed files with 8 additions and 0 deletions
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8
ophyd_devices/epics/devices/X07MADevices.py
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@ -278,6 +278,14 @@ class X07MAMagnetAxis(PVPositioner):
super().__init__(prefix, name=name, **kwargs) super().__init__(prefix, name=name, **kwargs)
self.readback.name = self.name self.readback.name = self.name
def _setup_move(self, position):
# If the setpoint is close to the current readback, the controller will not do anything,
# and the done value will not change. So we simply say is done.
if abs(position - self.readback.get()) < max(0.004, position * 0.0025):
self._done_moving(success=True, time=time.ctime(), value=position)
else:
super()._setup_move(position)
# x = Cpt(MagnetAxis, "", axis_id="X", ps_prefix="X07MA-PC-PS2:", name="x") # x = Cpt(MagnetAxis, "", axis_id="X", ps_prefix="X07MA-PC-PS2:", name="x")
# z = Cpt(MagnetAxis, "", axis_id="Z", ps_prefix="X07MA-PC-PS1:", name="z") # z = Cpt(MagnetAxis, "", axis_id="Z", ps_prefix="X07MA-PC-PS1:", name="z")