diff --git a/script/RFscan/phase_scan_caqtdm_dv2.py b/script/RFscan/phase_scan_caqtdm_dv2.py
index 0bd29e0..3c4c414 100644
--- a/script/RFscan/phase_scan_caqtdm_dv2.py
+++ b/script/RFscan/phase_scan_caqtdm_dv2.py
@@ -17,14 +17,14 @@ bpm_ch  = caget(prefix + ":DBPM")
 disp    = caget(bpm_ch + ":DISPERSION")
 energy0 = caget(bpm_ch + ":ENERGY")
 
-rf_phase_var =  ControlledVariable("Phase", prefix + ":SET-VSUM-PHASE-SIM", prefix + ":SET-VSUM-PHASE-SIM")
+rf_phase_var =  ControlledVariable("Phase", prefix + ":SET-VSUM-PHASE-SIM", prefix + ":GET-VSUM-PHASE-SIM")
 rf_phase_var.config.minValue   =-45.0
 rf_phase_var.config.maxValue   = 360.0
 rf_phase_var.config.resolution = 0.5
 rf_phase_var.initialize()
 
 rf_ampl_rbk  =  Channel(prefix + ":GET-VSUM-AMPLT-SIM", type = 'd', alias='Amplitude Readback')
-rf_ampl_rbk.write(1.0)
+rf_ampl_rbk.write(1)
 rf_power_rbk =  Channel(prefix + ":GET-KLY-POWER-SIM",  type = 'd', alias='Power Readback')
 bpm_x        =  Channel(bpm_ch + ":X1",                 type = 'd', alias='BPM-X')