diff --git a/script/phase_scan_dv.py b/script/phase_scan_dv.py
index ed9f5be..f4315e1 100644
--- a/script/phase_scan_dv.py
+++ b/script/phase_scan_dv.py
@@ -3,18 +3,19 @@ Parameters:
 prefix
 """
 
-prefix = "MINSB03-RSYS"
+prefix = "MINSB03-RSYS"            # SINEG01-RSYS
 start = -175.0
 stop = 180.0
 step = 5.0
 
 
 
-rf_phase_setpoint = Channel(prefix + ":SET-VSUM-PHASE")
-rf_phase_readback = Channel(prefix + ":GET-VSUM-PHASE")
-rf_ampl_readback = Channel(prefix + ":GET-VSUM-AMPLT")
+rf_phase_setpoint = ao1            # Channel(prefix + ":SET-VSUM-PHASE")
+rf_phase_readback = ai1            # Channel(prefix + ":GET-VSUM-PHASE")
+rf_ampl_readback = ai2             # Channel(prefix + ":GET-VSUM-AMPLT")
+bpm_q = sim                        # SINEG01-DBPM340:Q1, SINEG01-DWCM170:Q_B1
 
-r = lscan(rf_phase_setpoint, [rf_phase_readback, rf_ampl_readback, sim], start, stop, step , latency=0.5)
+r = lscan(rf_phase_setpoint, [rf_phase_readback, rf_ampl_readback, bpm_x], start, stop, step , latency=0.5)
 
 plot(r.getReadable(2), xdata = r.getReadable(0), title = "data")