Index: dialin/common/hd_defs.py
===================================================================
diff -u -rfe2ca5cbfaf3e516cf4f4c5b5db8014962687e32 -r061202ee879548ebbecdbbbfab85a63da1472ab2
--- dialin/common/hd_defs.py	(.../hd_defs.py)	(revision fe2ca5cbfaf3e516cf4f4c5b5db8014962687e32)
+++ dialin/common/hd_defs.py	(.../hd_defs.py)	(revision 061202ee879548ebbecdbbbfab85a63da1472ab2)
@@ -161,11 +161,12 @@
     SYRINGE_PUMP_INIT_STATE = 0                     # Syringe pump initialize state
     SYRINGE_PUMP_OFF_STATE = 1                      # Syringe pump off state
     SYRINGE_PUMP_RETRACT_STATE = 2                  # Syringe pump retract state
-    SYRINGE_PUMP_SEEK_STATE = 3                     # Syringe pump seek state
-    SYRINGE_PUMP_PRIME_STATE = 4                    # Syringe pump prime state
-    SYRINGE_PUMP_HEP_BOLUS_STATE = 5                # Syringe pump bolus state
-    SYRINGE_PUMP_HEP_CONTINUOUS_STATE = 6           # Syringe pump continuous state
-    SYRINGE_PUMP_CONFIG_FORCE_SENSOR_STATE = 7      # Syringe pump configure force sensor state
+    SYRINGE_PUMP_PRELOAD_STATE = 3                  # Syringe pump preload state
+    SYRINGE_PUMP_SEEK_STATE = 4                     # Syringe pump seek state
+    SYRINGE_PUMP_PRIME_STATE = 5                    # Syringe pump prime state
+    SYRINGE_PUMP_HEP_BOLUS_STATE = 6                # Syringe pump bolus state
+    SYRINGE_PUMP_HEP_CONTINUOUS_STATE = 7           # Syringe pump continuous state
+    SYRINGE_PUMP_CONFIG_FORCE_SENSOR_STATE = 8      # Syringe pump configure force sensor state
 
 
 # Syringe pump operations