Index: simulator/plugins/PostTreatment/loader.py
===================================================================
diff -u -ra1d61285efe44dfa5bddcfca2a61d69e5841ee6c -rae63fbc76b4638ffdcdaad7b69648beeee3340c3
--- simulator/plugins/PostTreatment/loader.py	(.../loader.py)	(revision a1d61285efe44dfa5bddcfca2a61d69e5841ee6c)
+++ simulator/plugins/PostTreatment/loader.py	(.../loader.py)	(revision ae63fbc76b4638ffdcdaad7b69648beeee3340c3)
@@ -12,7 +12,7 @@
 from dialin.ui.hd_simulator import HDSimulator
 from dialin.ui.hd_simulator import RequestRejectReasons
 
-from dialin.utils.conversions import integer_to_bytearray, float_to_bytearray
+from dialin.utils.conversions import unsigned_to_bytearray, float_to_bytearray
 
 # plugin specific
 # -- None --
@@ -165,19 +165,19 @@
         """
         parameters = [
             # column 1
-            integer_to_bytearray(int(self.leBloodFlowRate.text())),
-            integer_to_bytearray(int(self.leDialysateFlowRate.text())),
-            integer_to_bytearray(int(self.leTreatmentDuration.text())),
-            integer_to_bytearray(int(self.leActualTreatmentDuration.text())),
-            integer_to_bytearray(int(self.leAcidConcentrateType.text())),
-            integer_to_bytearray(int(self.leBicarbonateConcentrateType.text())),
-            integer_to_bytearray(int(self.lePotassiumConcentration.text())),
-            integer_to_bytearray(int(self.leCalciumConcentration.text())),
-            integer_to_bytearray(int(self.leBicarbonateConcentration.text())),
-            integer_to_bytearray(int(self.leSodiumConcentration.text())),
+            unsigned_to_bytearray(int(self.leBloodFlowRate.text())),
+            unsigned_to_bytearray(int(self.leDialysateFlowRate.text())),
+            unsigned_to_bytearray(int(self.leTreatmentDuration.text())),
+            unsigned_to_bytearray(int(self.leActualTreatmentDuration.text())),
+            unsigned_to_bytearray(int(self.leAcidConcentrateType.text())),
+            unsigned_to_bytearray(int(self.leBicarbonateConcentrateType.text())),
+            unsigned_to_bytearray(int(self.lePotassiumConcentration.text())),
+            unsigned_to_bytearray(int(self.leCalciumConcentration.text())),
+            unsigned_to_bytearray(int(self.leBicarbonateConcentration.text())),
+            unsigned_to_bytearray(int(self.leSodiumConcentration.text())),
             float_to_bytearray(float(self.leDialysateTemperature.text())),
-            integer_to_bytearray(int(self.leDialyzerType.text())),
-            integer_to_bytearray(int(self.leTreatmentDateTime.text())),
+            unsigned_to_bytearray(int(self.leDialyzerType.text())),
+            unsigned_to_bytearray(int(self.leTreatmentDateTime.text())),
             float_to_bytearray(float(self.leAverageBloodFlow.text())),
             float_to_bytearray(float(self.leAverageDialysateFlow.text())),
             float_to_bytearray(float(self.leDialysateVolumeUsed.text())),
@@ -187,18 +187,18 @@
             float_to_bytearray(float(self.leActualUFVolume.text())),
             float_to_bytearray(float(self.leTargetUFRate.text())),
             float_to_bytearray(float(self.leActualUFRate.text())),
-            integer_to_bytearray(int(self.leSalineBolusVolume.text())),
-            integer_to_bytearray(int(self.leHeparinType.text())),
-            integer_to_bytearray(int(self.leHeparinConcentration.text())),
+            unsigned_to_bytearray(int(self.leSalineBolusVolume.text())),
+            unsigned_to_bytearray(int(self.leHeparinType.text())),
+            unsigned_to_bytearray(int(self.leHeparinConcentration.text())),
             float_to_bytearray(float(self.leHeparinBolusVolume.text())),
             float_to_bytearray(float(self.leHeparinDispenseRate.text())),
-            integer_to_bytearray(int(self.leHeparinPreStop.text())),
+            unsigned_to_bytearray(int(self.leHeparinPreStop.text())),
             float_to_bytearray(float(self.leHeparinDeliveredVolume.text())),
             float_to_bytearray(float(self.leAverageArterialPressure.text())),
             float_to_bytearray(float(self.leAverageVenousPressure.text())),
-            integer_to_bytearray(int(self.leEndTreatmentEarlyAlarm.text())),
-            integer_to_bytearray(int(self.leDeviceID.text())),
-            integer_to_bytearray(int(self.leWaterSampleTestResult.text()))
+            unsigned_to_bytearray(int(self.leEndTreatmentEarlyAlarm.text())),
+            unsigned_to_bytearray(int(self.leDeviceID.text())),
+            unsigned_to_bytearray(int(self.leWaterSampleTestResult.text()))
         ]
 
         self.hd_simulator.cmd_send_post_treatment_log_response(True, 0, parameters)
@@ -212,19 +212,19 @@
         """
         parameters = [
             # column 1
-            integer_to_bytearray(0),
-            integer_to_bytearray(0),
-            integer_to_bytearray(0),
-            integer_to_bytearray(0),
-            integer_to_bytearray(0),
-            integer_to_bytearray(0),
-            integer_to_bytearray(0),
-            integer_to_bytearray(0),
-            integer_to_bytearray(0),
-            integer_to_bytearray(0),
+            unsigned_to_bytearray(0),
+            unsigned_to_bytearray(0),
+            unsigned_to_bytearray(0),
+            unsigned_to_bytearray(0),
+            unsigned_to_bytearray(0),
+            unsigned_to_bytearray(0),
+            unsigned_to_bytearray(0),
+            unsigned_to_bytearray(0),
+            unsigned_to_bytearray(0),
+            unsigned_to_bytearray(0),
             float_to_bytearray(0),
-            integer_to_bytearray(0),
-            integer_to_bytearray(0),
+            unsigned_to_bytearray(0),
+            unsigned_to_bytearray(0),
             float_to_bytearray(0),
             float_to_bytearray(0),
             float_to_bytearray(0),
@@ -234,18 +234,18 @@
             float_to_bytearray(0),
             float_to_bytearray(0),
             float_to_bytearray(0),
-            integer_to_bytearray(0),
-            integer_to_bytearray(0),
-            integer_to_bytearray(0),
+            unsigned_to_bytearray(0),
+            unsigned_to_bytearray(0),
+            unsigned_to_bytearray(0),
             float_to_bytearray(0),
             float_to_bytearray(0),
-            integer_to_bytearray(0),
+            unsigned_to_bytearray(0),
             float_to_bytearray(0),
             float_to_bytearray(0),
             float_to_bytearray(0),
-            integer_to_bytearray(0),
-            integer_to_bytearray(0),
-            integer_to_bytearray(0)
+            unsigned_to_bytearray(0),
+            unsigned_to_bytearray(0),
+            unsigned_to_bytearray(0)
         ]
         reason = self.spnReasonTxLog.value()
         self.hd_simulator.cmd_send_post_treatment_log_response(False, reason, parameters)