Index: dialin/common/dg_defs.py
===================================================================
diff -u -r26c7b6057f11680681e0a25399b5e5be9b92818d -r61fe0fcb4e609fd96382a7401d65c62de42007b3
--- dialin/common/dg_defs.py	(.../dg_defs.py)	(revision 26c7b6057f11680681e0a25399b5e5be9b92818d)
+++ dialin/common/dg_defs.py	(.../dg_defs.py)	(revision 61fe0fcb4e609fd96382a7401d65c62de42007b3)
@@ -32,7 +32,8 @@
     DG_MODE_CHEM = 10                   # Chemical Disinfect mode
     DG_MODE_CHFL = 11                   # Chemical Disinfect Flush mode
     DG_MODE_HCOL = 12                   # Heat Disinfect Active Cool mode
-    DG_MODE_NLEG = 13                   # Not legal - an illegal mode transition occurred
+    DG_MODE_ROPS = 13                   # RO Permeate Sample mode
+    DG_MODE_NLEG = 14                   # Not legal - an illegal mode transition occurred
     NUM_OF_DG_MODES = 14                # Number of DG operation modes
 
 
@@ -276,7 +277,7 @@
 
 
 @unique
-class DGROPermeateSampleSates(DialinEnum):
+class DGROPermeateSampleStates(DialinEnum):
     DG_RO_PERM_SAMPLE_STATE_START = 0
     DG_RO_PERM_SAMPLE_STATE_DRAIN_R1 = 1
     DG_RO_PERM_SAMPLE_STATE_DRAIN_R2 = 2
Index: tests/dg_tests.py
===================================================================
diff -u -r9ff38465c87974ff92d99ece044c413141f9d3b7 -r61fe0fcb4e609fd96382a7401d65c62de42007b3
--- tests/dg_tests.py	(.../dg_tests.py)	(revision 9ff38465c87974ff92d99ece044c413141f9d3b7)
+++ tests/dg_tests.py	(.../dg_tests.py)	(revision 61fe0fcb4e609fd96382a7401d65c62de42007b3)
@@ -48,7 +48,7 @@
 from dialin.hd.valves import HDValves
 from dialin.hd.voltages import HDMonitoredVoltages
 from dialin.hd.pretreatment import PreTreatmentRsrvrState
-from dialin.common.dg_defs import DGFlushStates, DGHeatDisinfectActiveCoolStates, DGROPermeateSampleSates
+from dialin.common.dg_defs import DGFlushStates, DGHeatDisinfectActiveCoolStates, DGROPermeateSampleStates
 from dialin.dg.ro_permeate_sample import ROPermeateDispenseMsgStatus
 from dialin.common.test_config_defs import DGTestConfigOptions, HDTestConfigOptions
 from time import sleep
@@ -130,7 +130,7 @@
 
 
 def get_ro_permeate_sample_mode_info():
-    state = DGROPermeateSampleSates(dg.ro_permeate_sample.ro_permeate_sample_state).name
+    state = DGROPermeateSampleStates(dg.ro_permeate_sample.ro_permeate_sample_state).name
     overall_elapsed_time = dg.ro_permeate_sample.overall_elapsed_time
     state_elapsed_time = dg.ro_permeate_sample.state_elapsed_time