diff --git a/miniDAS/test_io.py b/miniDAS/test_io.py
new file mode 100644
index 0000000..d92d261
--- /dev/null
+++ b/miniDAS/test_io.py
@@ -0,0 +1,16 @@
+import os
+import epics
+from epics import PV
+ 
+ 
+# Set the EPICS_CA_ADDR_LIST environment variable
+os.environ['EPICS_CA_ADDR_LIST'] = 'bl4b-dassrv1:5066'
+ 
+name='S1'
+X=PV('BL4B:Mot:s1:X:Gap.RBV')
+Xcen=PV('BL4B:Mot:s1:X:Center.RBV')
+Y=PV('BL4B:Mot:s1:Y:Gap.RBV')
+Ycen=PV('BL4B:Mot:s1:Y:Center.RBV')
+ 
+ 
+print(X.get())
\ No newline at end of file