Index: leahi_dialin/td/modules/treatment.py
===================================================================
diff -u -r08bfaacc0c7423ae525995a7e9152f36c65596b3 -r0ca34ba27790b8aeb6c368190cc770ca3f345184
--- leahi_dialin/td/modules/treatment.py	(.../treatment.py)	(revision 08bfaacc0c7423ae525995a7e9152f36c65596b3)
+++ leahi_dialin/td/modules/treatment.py	(.../treatment.py)	(revision 0ca34ba27790b8aeb6c368190cc770ca3f345184)
@@ -307,19 +307,20 @@
             message['message'][MsgFieldPositions.START_POS_FIELD_15:MsgFieldPositions.END_POS_FIELD_15]))[0]
         self.tmp_limit_window = struct.unpack('i', bytearray(
             message['message'][MsgFieldPositions.START_POS_FIELD_16:MsgFieldPositions.END_POS_FIELD_16]))[0]
-        self.dialysate_temp = struct.unpack('i', bytearray(
+        self.dialysate_temp = struct.unpack('f', bytearray(
             message['message'][MsgFieldPositions.START_POS_FIELD_17:MsgFieldPositions.END_POS_FIELD_17]))[0]
-        self.hep_dispense_rate = struct.unpack('i', bytearray(
+        self.hep_dispense_rate = struct.unpack('f', bytearray(
             message['message'][MsgFieldPositions.START_POS_FIELD_18:MsgFieldPositions.END_POS_FIELD_18]))[0]
-        self.hep_bolus_vol = struct.unpack('i', bytearray(
+        self.hep_bolus_vol = struct.unpack('f', bytearray(
             message['message'][MsgFieldPositions.START_POS_FIELD_19:MsgFieldPositions.END_POS_FIELD_19]))[0]
-        self.uf_vol = struct.unpack('i', bytearray(
+        self.uf_vol = struct.unpack('f', bytearray(
             message['message'][MsgFieldPositions.START_POS_FIELD_20:MsgFieldPositions.END_POS_FIELD_20]))[0]
 
         self.tx_param_req_timestamp = timestamp
 
-    def cmd_set_treatment_parameter(self, tx_param_value, tx_param_id: int = 0 ):
+    def cmd_set_treatment_parameter(self, tx_param_id: int = 0, tx_param_value = 0 ):
         """
+        Constructs and sends set treatment parameter command to the TD.
 
         Constraints:
             Must be logged into TD.