Port classes/functions from FMX's profile collection repo

mxtools/fmx/bpm.py

@@ -0,0 +1,13 @@
+from ophyd import Device, EpicsSignal, EpicsSignalRO, Component as Cpt
+
+class Bpm(Device):
+    x = Cpt(EpicsSignalRO, 'PosX:MeanValue_RBV')
+    y = Cpt(EpicsSignalRO, 'PosY:MeanValue_RBV')
+    a = Cpt(EpicsSignalRO, 'Current1:MeanValue_RBV')
+    b = Cpt(EpicsSignalRO, 'Current2:MeanValue_RBV')
+    c = Cpt(EpicsSignalRO, 'Current3:MeanValue_RBV')
+    d = Cpt(EpicsSignalRO, 'Current4:MeanValue_RBV')
+    sum_x = Cpt(EpicsSignalRO, 'SumX:MeanValue_RBV')
+    sum_y = Cpt(EpicsSignalRO, 'SumY:MeanValue_RBV')
+    sum_all = Cpt(EpicsSignalRO, 'SumAll:MeanValue_RBV')
+    sum_all_precision = Cpt(EpicsSignal, 'SumAll:MeanValue_RBV.PREC')

mxtools/fmx/utility.py

@@ -0,0 +1,50 @@
+import socket
+
+from ophyd import Component as Cpt
+from ophyd import Device, EpicsSignal
+
+
+class BeamlineCalibrations(Device):
+    LoMagCal = Cpt(EpicsSignal, "LoMagCal}")
+    HiMagCal = Cpt(EpicsSignal, "HiMagCal}")
+
+
+class PuckSafety(Device):
+    On = Cpt(EpicsSignal, "On.PROC")
+    Off = Cpt(EpicsSignal, "Off.PROC")
+
+
+def blStrGet():
+    """
+    Return beamline string
+
+    blStr: 'AMX' or 'FMX'
+
+    Beamline is determined by querying hostname
+    """
+    hostStr = socket.gethostname()
+    if hostStr.startswith("xf17id2"):
+        blStr = "FMX"
+    elif hostStr.startswith("xf17id1"):
+        blStr = "AMX"
+    else:
+        print("Error - this code must be executed on one of the -ca1 machines")
+        blStr = -1
+
+    return blStr
+
+
+def get_energy(vdcm=None, hdcm=None):
+    """
+    Returns the current photon energy in eV derived from the DCM Bragg angle
+    """
+    blStr = blStrGet()
+    if blStr == -1:
+        return -1
+
+    if blStr == "AMX":
+        energy = vdcm.e.user_readback.get()
+    elif blStr == "FMX":
+        energy = hdcm.e.user_readback.get()
+
+    return energy