More changes for v0.0.3 (#4)

enrich types and vif codes

---------

Co-authored-by: stankudrow <stankudrow@reply.no>

pymbus/exceptions.py

@@ -1,2 +1,6 @@
 class MBusError(Exception):
     """Meter-Bus Base Error."""
+
+
+class MBusLengthError(MBusError):
+    """Invalid length/size error."""

pymbus/telegrams/codes/value_info.py

@@ -60,30 +60,30 @@ def __init__(self, vif: VIF):
         self._range = 10**pwr
 
 
-class VolumeMassKilogramVIFCode(ValueInformationFieldCode):
-    CMASK = 0b0001_1000
+class VolumeMeterCubeVIFCode(ValueInformationFieldCode):
+    CMASK = 0b0001_0000
     EMASK = 0b0000_0111
-    DESC = "mass"
-    UNIT = "kg"
+    DESC = "volume"
+    UNIT = "m^3"
 
     def __init__(self, vif: VIF):
         super().__init__(vif)
 
         pwr = self._vif.byte & self.EMASK
-        self._range = 10 ** (pwr - 3)
+        self._range = 10 ** (pwr - 6)
 
 
-class VolumeMeterCubeVIFCode(ValueInformationFieldCode):
-    CMASK = 0b0001_0000
+class MassKilogramVIFCode(ValueInformationFieldCode):
+    CMASK = 0b0001_1000
     EMASK = 0b0000_0111
-    DESC = "volume"
-    UNIT = "m^3"
+    DESC = "mass"
+    UNIT = "kg"
 
     def __init__(self, vif: VIF):
         super().__init__(vif)
 
         pwr = self._vif.byte & self.EMASK
-        self._range = 10 ** (pwr - 6)
+        self._range = 10 ** (pwr - 3)
 
 
 class OnTimeVIFCode(ValueInformationFieldCode):
@@ -102,7 +102,7 @@ def __init__(self, vif: VIF):
             self.UNIT = "hour"
         if unit == 1:
             self.UNIT = "minute"
-        else:
+        if unit == 0:
             self.UNIT = "second"
 
 
@@ -123,13 +123,70 @@ def __init__(self, vif: VIF):
         self._range = 10 ** (pwr - 3)
 
 
+class PowerJoulePerHourVIFCode(ValueInformationFieldCode):
+    CMASK = 0b0011_0000
+    EMASK = 0b0000_0111
+    DESC = "power"
+    UNIT = "J/h"
+
+    def __init__(self, vif: VIF):
+        super().__init__(vif)
+
+        pwr = self._vif.byte & self.EMASK
+        self._range = 10 ** (pwr)
+
+
+class VolumeFlowCubicMeterPerHourVIFCode(ValueInformationFieldCode):
+    CMASK = 0b0011_1000
+    EMASK = 0b0000_0111
+    DESC = "volume flow"
+    UNIT = "m^3/h"
+
+    def __init__(self, vif: VIF):
+        super().__init__(vif)
+
+        pwr = self._vif.byte & self.EMASK
+        self._range = 10 ** (pwr - 6)
+
+
+class VolumeFlowCubicMeterPerMinuteVIFCode(ValueInformationFieldCode):
+    CMASK = 0b0100_0000
+    EMASK = 0b0000_0111
+    DESC = "volume flow"
+    UNIT = "m^3/min"
+
+    def __init__(self, vif: VIF):
+        super().__init__(vif)
+
+        pwr = self._vif.byte & self.EMASK
+        self._range = 10 ** (pwr - 7)
+
+
+class VolumeFlowCubicMeterPerSecondVIFCode(ValueInformationFieldCode):
+    CMASK = 0b0100_1000
+    EMASK = 0b0000_0111
+    DESC = "volume flow"
+    UNIT = "m^3/s"
+
+    def __init__(self, vif: VIF):
+        super().__init__(vif)
+
+        pwr = self._vif.byte & self.EMASK
+        self._range = 10 ** (pwr - 9)
+
+
 VIF_CODE_TYPES: list[ValueInformationFieldCode] = {
     EnergyWattHourVIFCode,
     EnergyJouleVIFCode,
     VolumeMeterCubeVIFCode,
-    VolumeMassKilogramVIFCode,
+    MassKilogramVIFCode,
+    OnTimeVIFCode,
     OperatingTimeVIFCode,
     PowerWattVIFCode,
+    PowerJoulePerHourVIFCode,
+    VolumeFlowCubicMeterPerHourVIFCode,
+    VolumeFlowCubicMeterPerMinuteVIFCode,
+    VolumeFlowCubicMeterPerSecondVIFCode,
 }