Index: HemodialysisDevice.py
===================================================================
diff -u -r64e64e45f1fe18efa87a7e4f3379db48f50d0daf -r3212865df6217fe18df05654a518d3821b340747
--- HemodialysisDevice.py	(.../HemodialysisDevice.py)	(revision 64e64e45f1fe18efa87a7e4f3379db48f50d0daf)
+++ HemodialysisDevice.py	(.../HemodialysisDevice.py)	(revision 3212865df6217fe18df05654a518d3821b340747)
@@ -157,11 +157,11 @@
 
             rst = self.outer_instance.integer2ByteArray(reset)
             sta = self.outer_instance.integer2ByteArray(state)
-            cargo = rst + sta
+            payload = rst + sta
 
             message = DenaliMessage.buildMessage(channel_id=0x400,
                                                  message_id=0x8002,
-                                                 payload=cargo)
+                                                 payload=payload)
 
             print("override off button")
 
@@ -194,11 +194,11 @@
 
             rst = self.outer_instance.integer2ByteArray(reset)
             sta = self.outer_instance.integer2ByteArray(state)
-            cargo = rst + sta
+            payload = rst + sta
 
             message = DenaliMessage.buildMessage(channel_id=0x400,
                                                  message_id=0x8003,
-                                                 payload=cargo)
+                                                 payload=payload)
 
             print("override stop button")
 
@@ -250,11 +250,11 @@
             rst = self.outer_instance.integer2ByteArray(reset)
             sta = self.outer_instance.integer2ByteArray(state)
             tsk = self.outer_instance.integer2ByteArray(task)
-            cargo = rst + sta + tsk
+            payload = rst + sta + tsk
 
             message = DenaliMessage.buildMessage(channel_id=0x400,
                                                  message_id=0x8005,
-                                                 payload=cargo)
+                                                 payload=payload)
 
             print("override watchdog task check-in state")
 
@@ -306,11 +306,11 @@
             rst = self.outer_instance.integer2ByteArray(reset)
             sta = self.outer_instance.integer2ByteArray(state)
             alm = self.outer_instance.integer2ByteArray(alarm)
-            cargo = rst + sta + alm
+            payload = rst + sta + alm
 
             message = DenaliMessage.buildMessage(channel_id=0x400,
                                                  message_id=0x8006,
-                                                 payload=cargo)
+                                                 payload=payload)
 
             print("override alarm state")
 
@@ -344,11 +344,11 @@
             rst = self.outer_instance.integer2ByteArray(reset)
             ms = self.outer_instance.integer2ByteArray(time_ms)
             alm = self.outer_instance.integer2ByteArray(alarm)
-            cargo = rst + ms + alm
+            payload = rst + ms + alm
 
             message = DenaliMessage.buildMessage(channel_id=0x400,
                                                  message_id=0x8007,
-                                                 payload=cargo)
+                                                 payload=payload)
 
             print("override alarm time since activated")
 
@@ -389,11 +389,11 @@
             """
             rst = self.outer_instance.integer2ByteArray(reset)
             pat = self.outer_instance.integer2ByteArray(pattern)
-            cargo = rst + pat
+            payload = rst + pat
 
             message = DenaliMessage.buildMessage(channel_id=0x400,
                                                  message_id=0x8004,
-                                                 payload=cargo)
+                                                 payload=payload)
 
             print("override alarm lamp pattern")
 
@@ -477,11 +477,11 @@
 
             rst = self.outer_instance.integer2ByteArray(reset)
             flo = self.outer_instance.integer2ByteArray(flow)
-            cargo = rst + flo
+            payload = rst + flo
 
             message = DenaliMessage.buildMessage(channel_id=0x400,
                                                  message_id=0x8008,
-                                                 payload=cargo)
+                                                 payload=payload)
 
             print("override blood flow set point")
 
@@ -514,11 +514,11 @@
 
             rst = self.outer_instance.integer2ByteArray(reset)
             flo = self.outer_instance.integer2ByteArray(flow)
-            cargo = rst + flo
+            payload = rst + flo
 
             message = DenaliMessage.buildMessage(channel_id=0x400,
                                                  message_id=0x8009,
-                                                 payload=cargo)
+                                                 payload=payload)
 
             print("override measured blood flow")
 
@@ -555,11 +555,11 @@
 
             rst = self.outer_instance.integer2ByteArray(reset)
             spd = self.outer_instance.integer2ByteArray(speed)
-            cargo = rst + spd
+            payload = rst + spd
 
             message = DenaliMessage.buildMessage(channel_id=0x400,
                                                  message_id=0x800A,
-                                                 payload=cargo)
+                                                 payload=payload)
 
             print("override measured blood pump speed")
 
@@ -592,11 +592,11 @@
 
             rst = self.outer_instance.integer2ByteArray(reset)
             cur = self.outer_instance.integer2ByteArray(curr)
-            cargo = rst + cur
+            payload = rst + cur
 
             message = DenaliMessage.buildMessage(channel_id=0x400,
                                                  message_id=0x800B,
-                                                 payload=cargo)
+                                                 payload=payload)
 
             print("override measured blood pump motor current")
 
@@ -629,11 +629,11 @@
 
             rst = self.outer_instance.integer2ByteArray(reset)
             mis = self.outer_instance.integer2ByteArray(ms)
-            cargo = rst + mis
+            payload = rst + mis
 
             message = DenaliMessage.buildMessage(channel_id=0x400,
                                                  message_id=0x800C,
-                                                 payload=cargo)
+                                                 payload=payload)
 
             print("override blood flow broadcast interval")