knob    = Channel("SARUN20-MCRX080:I-SET")
sensor1 = Channel("SINEG01-DICT215:B1_CHARGE")
sensor2 = Channel("S10DI01-DICT025:B1_CHARGE")

start = -1.0
stop  =  1.0
nstep = 10
lat   = 0.5 

r = lscan(knob, (sensor1, sensor2), start, stop, nstep, lat)

plot(r.getReadable(0), name = 'plotname', xdata = r.getReadable(1))