diff --git a/pyblnet/blnet_parser.py b/pyblnet/blnet_parser.py
index 441c362..953db9c 100644
--- a/pyblnet/blnet_parser.py
+++ b/pyblnet/blnet_parser.py
@@ -79,30 +79,18 @@ def __init__(self, data):
             self.digital[channel + 1] = self._convert_digital(digital, channel)
 
         self.speed = {}
-        for channel in range(0, 4):
-            speed = self._convert_speed(speed[channel])
-            if speed:
-                self.speed[channel + 1] = round(speed, 3)
-            else:
-                break
+        for idx, value in enumerate(speed):
+            self.speed[idx + 1] = self._convert_speed(value)
 
         self.energy = {}
         for channel in range(0, 2):
             energy = self._convert_energy(MWh[channel], kWh[channel], active, channel)
-            if energy:
-                self.energy[channel + 1] = round(energy, 3)
-            else:
-                break
+            self.energy[channel + 1] = energy
 
         self.power = {}
-        for channel in range(0, 2):
-            power = self._convert_power(power[channel], active, channel)
-            if power:
-                self.power[channel + 1] = round(
-                    self._convert_power(power[channel], active, channel), 3
-                )
-            else:
-                break
+        for idx, value in enumerate(power):
+            power = self._convert_power(value, active, idx)
+            self.power[idx + 1] = power
 
     def to_dict(self):
         """
@@ -149,7 +137,7 @@ def _convert_speed(self, value):
         if value & SPEED_ACTIVE:
             return None
         else:
-            return value & SPEED_MASK
+            return round(value & SPEED_MASK, 3)
 
     def _convert_energy(self, mwh, kwh, active, position):
         """
@@ -158,7 +146,7 @@ def _convert_energy(self, mwh, kwh, active, position):
         """
         if active & position:
             kwh = self._calculate_value(kwh, 0.1, INT16_POSITIVE_MASK)
-            return mwh * 1000 + kwh
+            return round(mwh * 1000 + kwh, 3)
         else:
             return None
 
@@ -168,12 +156,14 @@ def _convert_power(self, value, active, position):
         @return its power
         """
         if active & position:
-            return self._calculate_value(value, 1 / 2560, INT32_MASK, INT32_SIGN)
+            value = self._calculate_value(value, 1 / 2560, INT32_MASK, INT32_SIGN)
+            value = round(value, 3)
+            return value
         else:
             return None
 
     def _calculate_value(
-        self, value, multiplier=1, positive_mask=POSITIVE_VALUE_MASK, signbit=SIGN_BIT
+        self, value, multiplier=1.0, positive_mask=POSITIVE_VALUE_MASK, signbit=SIGN_BIT
     ):
         result = value & positive_mask
         if value & signbit:
diff --git a/pyblnet/tests/test_parser.py b/pyblnet/tests/test_parser.py
index 831795d..2e9bc3e 100644
--- a/pyblnet/tests/test_parser.py
+++ b/pyblnet/tests/test_parser.py
@@ -11,12 +11,16 @@ def test_parser_ok(self):
         expected_values = {
             'analog': {1: 12.5, 2: 69.3, 3: 61.4, 4: 51.5, 5: 38.2, 6: 65.4, 7: 27.8, 8: 22.4, 9: 25.5, 10: 24.3, 11: 24.8, 12: 0, 13: 31.7, 14: 1, 15: 0, 16: 48.2},
             'digital': {1: 0, 2: 0, 3: 0, 4: 0, 5: 0, 6: 0, 7: 0, 8: 0, 9: 0, 10: 0, 11: 0, 12: 0, 13: 0, 14: 0, 15: 0, 16: 0},
-            'speed': {},
-            'energy': {},
-            'power': {}
+            'speed': {1: None, 2: 0, 3: 0, 4: 0},
+            'energy': {1: None, 2: None},
+            'power': {1: None, 2: None}
         }
 
-        assert parsed_values == expected_values
+        assert parsed_values['analog'] == expected_values['analog']
+        assert parsed_values['digital'] == expected_values['digital']
+        assert parsed_values['speed'] == expected_values['speed']
+        assert parsed_values['energy'] == expected_values['energy']
+        assert parsed_values['power'] == expected_values['power']
 
     def test_parser_not_ok(self):
         data = b'broken} \xb5"f"\x03"~!\x8e"\x16!\xe0 \xff \xf3 \xf8 \x00\x00=!\x01\x00\x00`\xe2!\x00\x00\x80\x00\x00\x00\x00,\x00\xa4(\x06\x00DhI\x82\x1d\x04Ce\xc0\x00'