caput("X10DA-ES-SCALER.CNT", 0)
caput("X10DA-ES-SCALER.G1", 0)
caput("X10DA-ES-SCALER.CONT", 0)
caput("X10DA-ES1:START-CSMPL", 1)
caput("X10DA-ES1:TOTAL-CYCLES", 5)
caput("X10DA-ES1:SMPL-BTN", 1)

bragg = CrlogicPositioner("bragg", "X10DA-OP-MO3:ROX", None)
i0 = CrlogicSensor("I0", "SCALER12", True)
i1 = CrlogicSensor("I1", "SCALER13", True)
i2 = CrlogicSensor("I2", "SCALER14", True)
ref = CrlogicSensor("ScalerRef", "SCALER15", True)

class AbsCalc(Readable):
    def read(self):        
        return math.log(math.fabs(i0.take()) /math.fabs(i1.take()))
abs_calc = AbsCalc()  

class ECalc(Readable):
    def read(self):        
        return 12.39842 / ( crystal.take() * math.sin( math.radians(bragg.take())) )        
e_calc = ECalc()

sensors = [crystal, i0, i1, i2, ref, abs_calc, e_calc]


bragg.initialize()      
bragg.move(12.3)

try:
    r1 = hscan(crlogic_config, bragg, sensors, 12.3, 12.6, 0.002, 1, False)
finally:    
    bragg.close()