Add a PMAC device (#254)

src/dodal/beamlines/i24.py

@@ -7,6 +7,7 @@
 from dodal.devices.i24.dual_backlight import DualBacklight
 from dodal.devices.i24.I24_detector_motion import DetectorMotion
 from dodal.devices.i24.i24_vgonio import VGonio
+from dodal.devices.i24.pmac import PMAC
 from dodal.devices.oav.oav_detector import OAV, OAVConfigParams
 from dodal.devices.zebra import Zebra
 from dodal.log import set_beamline
@@ -76,6 +77,21 @@ def set_params(eiger: EigerDetector):
     )
 
 
+def pmac(wait_for_connection: bool = True, fake_with_ophyd_sim: bool = False) -> PMAC:
+    """Get the i24 PMAC device, instantiate it if it hasn't already been.
+    If this is called when already instantiated in i24, it will return the existing object.
+    """
+    # prefix not BL but ME14E
+    return device_instantiation(
+        PMAC,
+        "pmac",
+        "ME14E-MO-CHIP-01:",
+        wait_for_connection,
+        fake_with_ophyd_sim,
+        bl_prefix=False,
+    )
+
+
 @skip_device(lambda: BL == "s24")
 def oav(wait_for_connection: bool = True, fake_with_ophyd_sim: bool = False) -> OAV:
     """Get the i24 OAV device, instantiate it if it hasn't already been.

src/dodal/devices/i24/pmac.py

@@ -0,0 +1,11 @@
+from ophyd import Component as Cpt
+from ophyd import (
+    Device,
+    EpicsSignal,
+)
+
+
+class PMAC(Device):
+    """Device to control the chip stage on I24."""
+
+    pmac_string: EpicsSignal = Cpt(EpicsSignal, "PMAC_STRING")