st1 = Stream("st1", dispatcher)
st1.addScalar("B1","SIN-CVME-TIFGUN-EVR0:BUNCH-1-OK", 1, 0)
st1.addScalar("B2","SIN-CVME-TIFGUN-EVR0:BUNCH-2-OK", 1, 0)
add_device(st1, force = True)

st1.start(True)
try:    
    bscan (st1, 10, save=False)
finally:
    st1.close()