diff --git a/script/crlogic.py b/script/crlogic.py
index eaea57b..dd7830a 100644
--- a/script/crlogic.py
+++ b/script/crlogic.py
@@ -1,11 +1,11 @@
-scan_start = 9.0
-scan_stop = 9.2
+scan_start = 9.2
+scan_stop = 9.0
 scan_step = 0.002
 passes = 1
 zigzag = False
 
 #setup_plotting(range = "auto")
-offset = bragg.readback.read() - bragg.read()
+offset = bragg.read() - bragg.readback.read()
 setup_plotting(range = [scan_start - offset, scan_stop - offset])
 
 scaler.stop()                            #caput("X10DA-ES-SCALER.CNT", 0)