From e797a27e35f5f263d016fab4fe9f728864ee09e4 Mon Sep 17 00:00:00 2001
From: root <root@BALAZS-ASUS.localdomain>
Date: Mon, 24 Jul 2023 15:29:01 +0200
Subject: [PATCH] Added test for v5_EON_Hungary

---
 dsmr_parser/clients/socket_.py         |   2 +-
 dsmr_parser/obis_name_mapping.py       |   1 -
 dsmr_parser/obis_references.py         |   1 -
 dsmr_parser/telegram_specifications.py |   5 +-
 test/example_telegrams.py              |  52 +++++
 test/test_parse_v5_eon_hu.py           | 308 +++++++++++++++++++++++++
 6 files changed, 364 insertions(+), 5 deletions(-)
 create mode 100644 test/test_parse_v5_eon_hu.py

diff --git a/dsmr_parser/clients/socket_.py b/dsmr_parser/clients/socket_.py
index 127e849..8ee16fa 100644
--- a/dsmr_parser/clients/socket_.py
+++ b/dsmr_parser/clients/socket_.py
@@ -48,7 +48,7 @@ class SocketReader(object):
                     except UnicodeDecodeError:
                         # Some garbage came through the channel
                         # E.g.: Happens at EON_HUNGARY, but only once at the start of the socket.
-                        pass
+                        logger.error('Failed to parse telegram due to unicode decode error')
 
                 for telegram in self.telegram_buffer.get_all():
                     try:
diff --git a/dsmr_parser/obis_name_mapping.py b/dsmr_parser/obis_name_mapping.py
index fe89f7f..95f1016 100644
--- a/dsmr_parser/obis_name_mapping.py
+++ b/dsmr_parser/obis_name_mapping.py
@@ -97,7 +97,6 @@ EN = {
     obis.EON_HU_ELECTRICITY_DELIVERED_TARIFF_4: 'EON_HU_ELECTRICITY_DELIVERED_TARIFF_4',
     obis.EON_HU_ELECTRICITY_USED_TARIFF_3: 'EON_HU_ELECTRICITY_USED_TARIFF_3',
     obis.EON_HU_ELECTRICITY_USED_TARIFF_4: 'EON_HU_ELECTRICITY_USED_TARIFF_4',
-    obis.EON_HU_CIRCUIT_BREAKER_STATUS: 'EON_HU_CIRCUIT_BREAKER_STATUS',
     obis.EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q1: 'EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q1',
     obis.EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q2: 'EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q2',
     obis.EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q3: 'EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q3',
diff --git a/dsmr_parser/obis_references.py b/dsmr_parser/obis_references.py
index 826a457..920e39e 100644
--- a/dsmr_parser/obis_references.py
+++ b/dsmr_parser/obis_references.py
@@ -128,7 +128,6 @@ EON_HU_ELECTRICITY_USED_TARIFF_3 = r'^\d-\d:1\.8\.3.+?\r\n'
 EON_HU_ELECTRICITY_USED_TARIFF_4 = r'^\d-\d:1\.8\.4.+?\r\n'
 EON_HU_ELECTRICITY_DELIVERED_TARIFF_3 = r'^\d-\d:2\.8\.3.+?\r\n'
 EON_HU_ELECTRICITY_DELIVERED_TARIFF_4 = r'^\d-\d:2\.8\.4.+?\r\n'
-EON_HU_CIRCUIT_BREAKER_STATUS = r'^\d-\d:96\.50\.68.+?\r\n'
 EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q1 = r'^\d-\d:5\.8\.0.+?\r\n'
 EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q2 = r'^\d-\d:6\.8\.0.+?\r\n'
 EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q3 = r'^\d-\d:7\.8\.0.+?\r\n'
diff --git a/dsmr_parser/telegram_specifications.py b/dsmr_parser/telegram_specifications.py
index a9ff997..a5030a4 100644
--- a/dsmr_parser/telegram_specifications.py
+++ b/dsmr_parser/telegram_specifications.py
@@ -343,13 +343,14 @@ ISKRA_IE = {
 EON_HUNGARY = {
 	# Revision: 2023.02.10
 	# Based on V5
+	# Reference: https://www.eon.hu/content/dam/eon/eon-hungary/documents/Lakossagi/aram/muszaki-ugyek/p1_port%20felhaszn_interfesz_taj_%2020230210.pdf
     'checksum_support': True,
     'objects': {
         obis.P1_MESSAGE_TIMESTAMP: CosemParser(ValueParser(timestamp)),
         obis.LUXEMBOURG_EQUIPMENT_IDENTIFIER: CosemParser(ValueParser(str)), # "COSEM logical equipment name"
         obis.EQUIPMENT_IDENTIFIER_GAS: CosemParser(ValueParser(str)), # This obis is already defined, so it is not possible to "rename" it to "EQUIPMENT_SERIAL_NUMBER"
         obis.ELECTRICITY_ACTIVE_TARIFF: CosemParser(ValueParser(str)),
-        obis.EON_HU_CIRCUIT_BREAKER_STATUS: CosemParser(ValueParser(str)), # Does not show up always
+        obis.ACTUAL_SWITCH_POSITION: CosemParser(ValueParser(str)), # This seems to be wrong in documentation, it's not 0-0:96.50.68, but 0-0:96.3.10
         obis.ACTUAL_TRESHOLD_ELECTRICITY: CosemParser(ValueParser(Decimal)), # This obis is already duplicated, so it will show up as "BELGIUM_MAX_POWER_PER_PHASE"
         obis.ELECTRICITY_IMPORTED_TOTAL: CosemParser(ValueParser(Decimal)),
         obis.ELECTRICITY_USED_TARIFF_1: CosemParser(ValueParser(Decimal)),
@@ -382,7 +383,7 @@ EON_HUNGARY = {
         obis.CURRENT_ELECTRICITY_USAGE: CosemParser(ValueParser(Decimal)),
         obis.CURRENT_ELECTRICITY_DELIVERY: CosemParser(ValueParser(Decimal)),
         obis.EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q1: CosemParser(ValueParser(Decimal)),
-        obis.EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q3: CosemParser(ValueParser(Decimal)),
+        obis.EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q2: CosemParser(ValueParser(Decimal)),
         obis.EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q3: CosemParser(ValueParser(Decimal)),
         obis.EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q4: CosemParser(ValueParser(Decimal)),
         obis.EON_HU_MAX_POWER_ON_L1: CosemParser(ValueParser(Decimal)),
diff --git a/test/example_telegrams.py b/test/example_telegrams.py
index d59ce83..55a3dae 100644
--- a/test/example_telegrams.py
+++ b/test/example_telegrams.py
@@ -311,3 +311,55 @@ TELEGRAM_ISKRA_IE = (
     '0-1:96.1.1()\r\n'
     '!AD3B\r\n'
 )
+
+# V5 telegram of EON in Hungary
+TELEGRAM_V5_EON_HU = (
+    '/SAG5SAG-METER\r\n'
+    '\r\n'
+    '0-0:1.0.0(230724150730S)\r\n'
+    '0-0:42.0.0(53414733303832323030303032313630)\r\n'
+    '0-0:96.1.0(383930303832323030303032313630)\r\n'
+    '0-0:96.14.0(0001)\r\n'
+    '0-0:96.3.10(1)\r\n'
+    '0-0:17.0.0(90.000*kW)\r\n'
+    '1-0:1.8.0(000173.640*kWh)\r\n'
+    '1-0:1.8.1(000047.719*kWh)\r\n'
+    '1-0:1.8.2(000125.921*kWh)\r\n'
+    '1-0:1.8.3(000000.000*kWh)\r\n'
+    '1-0:1.8.4(000000.000*kWh)\r\n'
+    '1-0:2.8.0(000627.177*kWh)\r\n'
+    '1-0:2.8.1(000401.829*kWh)\r\n'
+    '1-0:2.8.2(000225.348*kWh)\r\n'
+    '1-0:2.8.3(000000.000*kWh)\r\n'
+    '1-0:2.8.4(000000.000*kWh)\r\n'
+    '1-0:3.8.0(000000.123*kvarh)\r\n'
+    '1-0:4.8.0(000303.131*kvarh)\r\n'
+    '1-0:5.8.0(000000.668*kvarh)\r\n'
+    '1-0:6.8.0(000000.071*kvarh)\r\n'
+    '1-0:7.8.0(000160.487*kvarh)\r\n'
+    '1-0:8.8.0(000143.346*kvarh)\r\n'
+    '1-0:15.8.0(000800.817*kWh)\r\n'
+    '1-0:32.7.0(240.4*V)\r\n'
+    '1-0:52.7.0(239.1*V)\r\n'
+    '1-0:72.7.0(241.2*V)\r\n'
+    '1-0:31.7.0(003*A)\r\n'
+    '1-0:51.7.0(004*A)\r\n'
+    '1-0:71.7.0(003*A)\r\n'
+    '1-0:13.7.0(4.556)\r\n'
+    '1-0:33.7.0(4.591)\r\n'
+    '1-0:53.7.0(4.542)\r\n'
+    '1-0:73.7.0(4.552)\r\n'
+    '1-0:14.7.0(50.00*Hz)\r\n'
+    '1-0:1.7.0(00.000*kW)\r\n'
+    '1-0:2.7.0(02.601*kW)\r\n'
+    '1-0:5.7.0(00.000*kvar)\r\n'
+    '1-0:6.7.0(00.000*kvar)\r\n'
+    '1-0:7.7.0(00.504*kvar)\r\n'
+    '1-0:8.7.0(00.000*kvar)\r\n'
+    '1-0:31.4.0(200.00*A)\r\n'
+    '1-0:51.4.0(200.00*A)\r\n'
+    '1-0:71.4.0(200.00*A)\r\n'
+    '0-0:98.1.0(230701000000S)(000040.777*kWh)(000008.950*kWh)(000031.827*kWh)(000142.250*kWh)(000111.164*kWh)(000031.086*kWh)(000000.030*kvarh)(000073.988*kvarh)(000000.205*kvarh)(000000.048*kvarh)(000039.199*kvarh)(000035.020*kvarh)(000183.027*kWh)(03.564*kW)(02.156*kW)(03.564*kW)(04.104*kW)(04.104*kW)(03.400*kW)\r\n'
+    '0-0:96.13.0()\r\n'
+    '!99DA\r\n'
+)
\ No newline at end of file
diff --git a/test/test_parse_v5_eon_hu.py b/test/test_parse_v5_eon_hu.py
new file mode 100644
index 0000000..401f3dd
--- /dev/null
+++ b/test/test_parse_v5_eon_hu.py
@@ -0,0 +1,308 @@
+from decimal import Decimal
+
+import datetime
+import unittest
+
+import pytz
+
+from dsmr_parser import telegram_specifications
+from dsmr_parser.exceptions import InvalidChecksumError, ParseError
+from dsmr_parser.objects import CosemObject, MBusObject
+from dsmr_parser.parsers import TelegramParser
+from test.example_telegrams import TELEGRAM_V5_EON_HU
+
+
+class TelegramParserV5EONHUTest(unittest.TestCase):
+    """ Test parsing of a DSMR v5 EON Hungary telegram. """
+
+    def test_parse(self):
+        parser = TelegramParser(telegram_specifications.EON_HUNGARY)
+        try:
+            telegram = parser.parse(TELEGRAM_V5_EON_HU, throw_ex=True)
+        except Exception as ex:
+            assert False, f"parse trigged an exception {ex}"
+
+        # P1_MESSAGE_TIMESTAMP (0-0:1.0.0)
+        assert isinstance(telegram.P1_MESSAGE_TIMESTAMP, CosemObject)
+        assert telegram.P1_MESSAGE_TIMESTAMP.unit is None
+        assert isinstance(telegram.P1_MESSAGE_TIMESTAMP.value, datetime.datetime)
+        assert telegram.P1_MESSAGE_TIMESTAMP.value == \
+            pytz.timezone("Europe/Budapest").localize(datetime.datetime(2023, 7, 24, 15, 7, 30))
+
+        # LUXEMBOURG_EQUIPMENT_IDENTIFIER (0-0:42.0.0)
+        assert isinstance(telegram.LUXEMBOURG_EQUIPMENT_IDENTIFIER, CosemObject)
+        assert telegram.LUXEMBOURG_EQUIPMENT_IDENTIFIER.unit is None
+        assert isinstance(telegram.LUXEMBOURG_EQUIPMENT_IDENTIFIER.value, str)
+        assert telegram.LUXEMBOURG_EQUIPMENT_IDENTIFIER.value == '53414733303832323030303032313630'
+
+        # EQUIPMENT_IDENTIFIER_GAS (0-0:96.1.0)
+        assert isinstance(telegram.EQUIPMENT_IDENTIFIER_GAS, CosemObject)
+        assert telegram.EQUIPMENT_IDENTIFIER_GAS.unit is None
+        assert isinstance(telegram.EQUIPMENT_IDENTIFIER_GAS.value, str)
+        assert telegram.EQUIPMENT_IDENTIFIER_GAS.value == '383930303832323030303032313630'
+
+        # ELECTRICITY_ACTIVE_TARIFF (0-0:96.14.0)
+        assert isinstance(telegram.ELECTRICITY_ACTIVE_TARIFF, CosemObject)
+        assert telegram.ELECTRICITY_ACTIVE_TARIFF.unit is None
+        assert isinstance(telegram.ELECTRICITY_ACTIVE_TARIFF.value, str)
+        assert telegram.ELECTRICITY_ACTIVE_TARIFF.value == '0001'
+
+        # ACTUAL_SWITCH_POSITION (0-0:96.3.10)
+        assert isinstance(telegram.ACTUAL_SWITCH_POSITION, CosemObject)
+        assert telegram.ACTUAL_SWITCH_POSITION.unit is None
+        assert isinstance(telegram.ACTUAL_SWITCH_POSITION.value, str)
+        assert telegram.ACTUAL_SWITCH_POSITION.value == '1'
+
+        # BELGIUM_MAX_POWER_PER_PHASE (ACTUAL_TRESHOLD_ELECTRICITY) (0-0:17.0.0)
+        assert isinstance(telegram.BELGIUM_MAX_POWER_PER_PHASE, CosemObject)
+        assert telegram.BELGIUM_MAX_POWER_PER_PHASE.unit == 'kW'
+        assert isinstance(telegram.BELGIUM_MAX_POWER_PER_PHASE.value, Decimal)
+        assert telegram.BELGIUM_MAX_POWER_PER_PHASE.value == Decimal('90.000')
+
+        # ELECTRICITY_IMPORTED_TOTAL (1-0:1.8.0)
+        assert isinstance(telegram.ELECTRICITY_IMPORTED_TOTAL, CosemObject)
+        assert telegram.ELECTRICITY_IMPORTED_TOTAL.unit == 'kWh'
+        assert isinstance(telegram.ELECTRICITY_IMPORTED_TOTAL.value, Decimal)
+        assert telegram.ELECTRICITY_IMPORTED_TOTAL.value == Decimal('000173.640')
+
+        # ELECTRICITY_USED_TARIFF_1 (1-0:1.8.1)
+        assert isinstance(telegram.ELECTRICITY_USED_TARIFF_1, CosemObject)
+        assert telegram.ELECTRICITY_USED_TARIFF_1.unit == 'kWh'
+        assert isinstance(telegram.ELECTRICITY_USED_TARIFF_1.value, Decimal)
+        assert telegram.ELECTRICITY_USED_TARIFF_1.value == Decimal('000047.719')
+
+        # ELECTRICITY_USED_TARIFF_2 (1-0:1.8.2)
+        assert isinstance(telegram.ELECTRICITY_USED_TARIFF_2, CosemObject)
+        assert telegram.ELECTRICITY_USED_TARIFF_2.unit == 'kWh'
+        assert isinstance(telegram.ELECTRICITY_USED_TARIFF_2.value, Decimal)
+        assert telegram.ELECTRICITY_USED_TARIFF_2.value == Decimal('000125.921')
+
+        # EON_HU_ELECTRICITY_USED_TARIFF_3 (1-0:1.8.3)
+        assert isinstance(telegram.EON_HU_ELECTRICITY_USED_TARIFF_3, CosemObject)
+        assert telegram.EON_HU_ELECTRICITY_USED_TARIFF_3.unit == 'kWh'
+        assert isinstance(telegram.EON_HU_ELECTRICITY_USED_TARIFF_3.value, Decimal)
+        assert telegram.EON_HU_ELECTRICITY_USED_TARIFF_3.value == Decimal('000000.000')
+
+        # EON_HU_ELECTRICITY_USED_TARIFF_4 (1-0:1.8.4)
+        assert isinstance(telegram.EON_HU_ELECTRICITY_USED_TARIFF_4, CosemObject)
+        assert telegram.EON_HU_ELECTRICITY_USED_TARIFF_4.unit == 'kWh'
+        assert isinstance(telegram.EON_HU_ELECTRICITY_USED_TARIFF_4.value, Decimal)
+        assert telegram.EON_HU_ELECTRICITY_USED_TARIFF_4.value == Decimal('000000.000')
+
+        # ELECTRICITY_EXPORTED_TOTAL (1-0:2.8.0)
+        assert isinstance(telegram.ELECTRICITY_EXPORTED_TOTAL, CosemObject)
+        assert telegram.ELECTRICITY_EXPORTED_TOTAL.unit == 'kWh'
+        assert isinstance(telegram.ELECTRICITY_EXPORTED_TOTAL.value, Decimal)
+        assert telegram.ELECTRICITY_EXPORTED_TOTAL.value == Decimal('000627.177')
+
+        # ELECTRICITY_DELIVERED_TARIFF_1 (1-0:2.8.1)
+        assert isinstance(telegram.ELECTRICITY_DELIVERED_TARIFF_1, CosemObject)
+        assert telegram.ELECTRICITY_DELIVERED_TARIFF_1.unit == 'kWh'
+        assert isinstance(telegram.ELECTRICITY_DELIVERED_TARIFF_1.value, Decimal)
+        assert telegram.ELECTRICITY_DELIVERED_TARIFF_1.value == Decimal('000401.829')
+
+        # ELECTRICITY_DELIVERED_TARIFF_2 (1-0:2.8.2)
+        assert isinstance(telegram.ELECTRICITY_DELIVERED_TARIFF_2, CosemObject)
+        assert telegram.ELECTRICITY_DELIVERED_TARIFF_2.unit == 'kWh'
+        assert isinstance(telegram.ELECTRICITY_DELIVERED_TARIFF_2.value, Decimal)
+        assert telegram.ELECTRICITY_DELIVERED_TARIFF_2.value == Decimal('000225.348')
+
+        # EON_HU_ELECTRICITY_DELIVERED_TARIFF_3 (1-0:2.8.3)
+        assert isinstance(telegram.EON_HU_ELECTRICITY_DELIVERED_TARIFF_3, CosemObject)
+        assert telegram.EON_HU_ELECTRICITY_DELIVERED_TARIFF_3.unit == 'kWh'
+        assert isinstance(telegram.EON_HU_ELECTRICITY_DELIVERED_TARIFF_3.value, Decimal)
+        assert telegram.EON_HU_ELECTRICITY_DELIVERED_TARIFF_3.value == Decimal('000000.000')
+
+        # EON_HU_ELECTRICITY_DELIVERED_TARIFF_4 (1-0:2.8.4)
+        assert isinstance(telegram.EON_HU_ELECTRICITY_DELIVERED_TARIFF_4, CosemObject)
+        assert telegram.EON_HU_ELECTRICITY_DELIVERED_TARIFF_4.unit == 'kWh'
+        assert isinstance(telegram.EON_HU_ELECTRICITY_DELIVERED_TARIFF_4.value, Decimal)
+        assert telegram.EON_HU_ELECTRICITY_DELIVERED_TARIFF_4.value == Decimal('000000.000')
+
+        # ELECTRICITY_REACTIVE_IMPORTED_TOTAL (1-0:3.8.0)
+        assert isinstance(telegram.ELECTRICITY_REACTIVE_IMPORTED_TOTAL, CosemObject)
+        assert telegram.ELECTRICITY_REACTIVE_IMPORTED_TOTAL.unit == 'kvarh'
+        assert isinstance(telegram.ELECTRICITY_REACTIVE_IMPORTED_TOTAL.value, Decimal)
+        assert telegram.ELECTRICITY_REACTIVE_IMPORTED_TOTAL.value == Decimal('000000.123')
+
+        # ELECTRICITY_REACTIVE_EXPORTED_TOTAL (1-0:4.8.0)
+        assert isinstance(telegram.ELECTRICITY_REACTIVE_EXPORTED_TOTAL, CosemObject)
+        assert telegram.ELECTRICITY_REACTIVE_EXPORTED_TOTAL.unit == 'kvarh'
+        assert isinstance(telegram.ELECTRICITY_REACTIVE_EXPORTED_TOTAL.value, Decimal)
+        assert telegram.ELECTRICITY_REACTIVE_EXPORTED_TOTAL.value == Decimal('000303.131')
+
+        # EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q1 (1-0:5.8.0)
+        assert isinstance(telegram.EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q1, CosemObject)
+        assert telegram.EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q1.unit == 'kvarh'
+        assert isinstance(telegram.EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q1.value, Decimal)
+        assert telegram.EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q1.value == Decimal('000000.668')
+
+        # EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q2 (1-0:6.8.0)
+        assert isinstance(telegram.EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q2, CosemObject)
+        assert telegram.EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q2.unit == 'kvarh'
+        assert isinstance(telegram.EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q2.value, Decimal)
+        assert telegram.EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q2.value == Decimal('000000.071')
+
+        # EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q3 (1-0:7.8.0)
+        assert isinstance(telegram.EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q3, CosemObject)
+        assert telegram.EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q3.unit == 'kvarh'
+        assert isinstance(telegram.EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q3.value, Decimal)
+        assert telegram.EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q3.value == Decimal('000160.487')
+
+        # EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q4 (1-0:8.8.0)
+        assert isinstance(telegram.EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q4, CosemObject)
+        assert telegram.EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q4.unit == 'kvarh'
+        assert isinstance(telegram.EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q4.value, Decimal)
+        assert telegram.EON_HU_ELECTRICITY_REACTIVE_TOTAL_Q4.value == Decimal('000143.346')
+
+        # EON_HU_ELECTRICITY_COMBINED (1-0:15.8.0)
+        assert isinstance(telegram.EON_HU_ELECTRICITY_COMBINED, CosemObject)
+        assert telegram.EON_HU_ELECTRICITY_COMBINED.unit == 'kWh'
+        assert isinstance(telegram.EON_HU_ELECTRICITY_COMBINED.value, Decimal)
+        assert telegram.EON_HU_ELECTRICITY_COMBINED.value == Decimal('000800.817')
+
+        # INSTANTANEOUS_VOLTAGE_L2 (1-0:32.7.0)
+        assert isinstance(telegram.INSTANTANEOUS_VOLTAGE_L1, CosemObject)
+        assert telegram.INSTANTANEOUS_VOLTAGE_L1.unit == 'V'
+        assert isinstance(telegram.INSTANTANEOUS_VOLTAGE_L1.value, Decimal)
+        assert telegram.INSTANTANEOUS_VOLTAGE_L1.value == Decimal('240.4')
+
+        # INSTANTANEOUS_VOLTAGE_L2 (1-0:52.7.0)
+        assert isinstance(telegram.INSTANTANEOUS_VOLTAGE_L2, CosemObject)
+        assert telegram.INSTANTANEOUS_VOLTAGE_L2.unit == 'V'
+        assert isinstance(telegram.INSTANTANEOUS_VOLTAGE_L2.value, Decimal)
+        assert telegram.INSTANTANEOUS_VOLTAGE_L2.value == Decimal('239.1')
+
+        # INSTANTANEOUS_VOLTAGE_L3 (1-0:72.7.0)
+        assert isinstance(telegram.INSTANTANEOUS_VOLTAGE_L3, CosemObject)
+        assert telegram.INSTANTANEOUS_VOLTAGE_L3.unit == 'V'
+        assert isinstance(telegram.INSTANTANEOUS_VOLTAGE_L3.value, Decimal)
+        assert telegram.INSTANTANEOUS_VOLTAGE_L3.value == Decimal('241.2')
+
+        # INSTANTANEOUS_CURRENT_L1 (1-0:31.7.0)
+        assert isinstance(telegram.INSTANTANEOUS_CURRENT_L1, CosemObject)
+        assert telegram.INSTANTANEOUS_CURRENT_L1.unit == 'A'
+        assert isinstance(telegram.INSTANTANEOUS_CURRENT_L1.value, Decimal)
+        assert telegram.INSTANTANEOUS_CURRENT_L1.value == Decimal('003')
+
+        # INSTANTANEOUS_CURRENT_L2 (1-0:51.7.0)
+        assert isinstance(telegram.INSTANTANEOUS_CURRENT_L2, CosemObject)
+        assert telegram.INSTANTANEOUS_CURRENT_L2.unit == 'A'
+        assert isinstance(telegram.INSTANTANEOUS_CURRENT_L2.value, Decimal)
+        assert telegram.INSTANTANEOUS_CURRENT_L2.value == Decimal('004')
+
+        # INSTANTANEOUS_CURRENT_L3 (1-0:71.7.0)
+        assert isinstance(telegram.INSTANTANEOUS_CURRENT_L3, CosemObject)
+        assert telegram.INSTANTANEOUS_CURRENT_L3.unit == 'A'
+        assert isinstance(telegram.INSTANTANEOUS_CURRENT_L3.value, Decimal)
+        assert telegram.INSTANTANEOUS_CURRENT_L3.value == Decimal('003')
+
+        # EON_HU_INSTANTANEOUS_POWER_FACTOR_TOTAL (1-0:13.7.0)
+        assert isinstance(telegram.EON_HU_INSTANTANEOUS_POWER_FACTOR_TOTAL, CosemObject)
+        assert telegram.EON_HU_INSTANTANEOUS_POWER_FACTOR_TOTAL.unit is None
+        assert isinstance(telegram.EON_HU_INSTANTANEOUS_POWER_FACTOR_TOTAL.value, Decimal)
+        assert telegram.EON_HU_INSTANTANEOUS_POWER_FACTOR_TOTAL.value == Decimal('4.556')
+
+        # EON_HU_INSTANTANEOUS_POWER_FACTOR_L1 (1-0:33.7.0)
+        assert isinstance(telegram.EON_HU_INSTANTANEOUS_POWER_FACTOR_L1, CosemObject)
+        assert telegram.EON_HU_INSTANTANEOUS_POWER_FACTOR_L1.unit is None
+        assert isinstance(telegram.EON_HU_INSTANTANEOUS_POWER_FACTOR_L1.value, Decimal)
+        assert telegram.EON_HU_INSTANTANEOUS_POWER_FACTOR_L1.value == Decimal('4.591')
+
+        # EON_HU_INSTANTANEOUS_POWER_FACTOR_L2 (1-0:53.7.0)
+        assert isinstance(telegram.EON_HU_INSTANTANEOUS_POWER_FACTOR_L2, CosemObject)
+        assert telegram.EON_HU_INSTANTANEOUS_POWER_FACTOR_L2.unit is None
+        assert isinstance(telegram.EON_HU_INSTANTANEOUS_POWER_FACTOR_L2.value, Decimal)
+        assert telegram.EON_HU_INSTANTANEOUS_POWER_FACTOR_L2.value == Decimal('4.542')
+
+        # EON_HU_INSTANTANEOUS_POWER_FACTOR_L3 (1-0:73.7.0)
+        assert isinstance(telegram.EON_HU_INSTANTANEOUS_POWER_FACTOR_L3, CosemObject)
+        assert telegram.EON_HU_INSTANTANEOUS_POWER_FACTOR_L3.unit is None
+        assert isinstance(telegram.EON_HU_INSTANTANEOUS_POWER_FACTOR_L3.value, Decimal)
+        assert telegram.EON_HU_INSTANTANEOUS_POWER_FACTOR_L3.value == Decimal('4.552')
+
+        # EON_HU_FREQUENCY (1-0:14.7.0)
+        assert isinstance(telegram.EON_HU_FREQUENCY, CosemObject)
+        assert telegram.EON_HU_FREQUENCY.unit == "Hz"
+        assert isinstance(telegram.EON_HU_FREQUENCY.value, Decimal)
+        assert telegram.EON_HU_FREQUENCY.value == Decimal('50.00')
+
+        # CURRENT_ELECTRICITY_USAGE (1-0:1.7.0)
+        assert isinstance(telegram.CURRENT_ELECTRICITY_USAGE, CosemObject)
+        assert telegram.CURRENT_ELECTRICITY_USAGE.unit == 'kW'
+        assert isinstance(telegram.CURRENT_ELECTRICITY_USAGE.value, Decimal)
+        assert telegram.CURRENT_ELECTRICITY_USAGE.value == Decimal('00.000')
+
+        # CURRENT_ELECTRICITY_DELIVERY (1-0:2.7.0)
+        assert isinstance(telegram.CURRENT_ELECTRICITY_DELIVERY, CosemObject)
+        assert telegram.CURRENT_ELECTRICITY_DELIVERY.unit == 'kW'
+        assert isinstance(telegram.CURRENT_ELECTRICITY_DELIVERY.value, Decimal)
+        assert telegram.CURRENT_ELECTRICITY_DELIVERY.value == Decimal('02.601')
+
+        # EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q1 (1-0:5.7.0)
+        assert isinstance(telegram.EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q1, CosemObject)
+        assert telegram.EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q1.unit == 'kvar'
+        assert isinstance(telegram.EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q1.value, Decimal)
+        assert telegram.EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q1.value == Decimal('00.000')
+
+        # EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q2 (1-0:6.7.0)
+        assert isinstance(telegram.EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q2, CosemObject)
+        assert telegram.EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q2.unit == 'kvar'
+        assert isinstance(telegram.EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q2.value, Decimal)
+        assert telegram.EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q2.value == Decimal('00.000')
+
+        # EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q3 (1-0:7.7.0)
+        assert isinstance(telegram.EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q3, CosemObject)
+        assert telegram.EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q3.unit == 'kvar'
+        assert isinstance(telegram.EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q3.value, Decimal)
+        assert telegram.EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q3.value == Decimal('00.504')
+
+        # EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q4 (1-0:8.7.0)
+        assert isinstance(telegram.EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q4, CosemObject)
+        assert telegram.EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q4.unit == 'kvar'
+        assert isinstance(telegram.EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q4.value, Decimal)
+        assert telegram.EON_HU_INSTANTANEOUS_REACTIVE_POWER_Q4.value == Decimal('00.000')
+
+        # EON_HU_MAX_POWER_ON_L1 (1-0:31.4.0)
+        assert isinstance(telegram.EON_HU_MAX_POWER_ON_L1, CosemObject)
+        assert telegram.EON_HU_MAX_POWER_ON_L1.unit == 'A'
+        assert isinstance(telegram.EON_HU_MAX_POWER_ON_L1.value, Decimal)
+        assert telegram.EON_HU_MAX_POWER_ON_L1.value == Decimal('200.00')
+
+        # EON_HU_MAX_POWER_ON_L2 (1-0:31.4.0)
+        assert isinstance(telegram.EON_HU_MAX_POWER_ON_L2, CosemObject)
+        assert telegram.EON_HU_MAX_POWER_ON_L2.unit == 'A'
+        assert isinstance(telegram.EON_HU_MAX_POWER_ON_L2.value, Decimal)
+        assert telegram.EON_HU_MAX_POWER_ON_L2.value == Decimal('200.00')
+
+        # EON_HU_MAX_POWER_ON_L3 (1-0:31.4.0)
+        assert isinstance(telegram.EON_HU_MAX_POWER_ON_L3, CosemObject)
+        assert telegram.EON_HU_MAX_POWER_ON_L3.unit == 'A'
+        assert isinstance(telegram.EON_HU_MAX_POWER_ON_L3.value, Decimal)
+        assert telegram.EON_HU_MAX_POWER_ON_L3.value == Decimal('200.00')
+
+        # TEXT_MESSAGE (0-0:96.13.0)
+        assert isinstance(telegram.TEXT_MESSAGE, CosemObject)
+        assert telegram.TEXT_MESSAGE.unit is None
+        assert telegram.TEXT_MESSAGE.value is None
+
+    def test_checksum_valid(self):
+        # No exception is raised.
+        TelegramParser.validate_checksum(TELEGRAM_V5_EON_HU)
+
+    def test_checksum_invalid(self):
+        # Remove the electricty used data value. This causes the checksum to
+        # not match anymore.
+        corrupted_telegram = TELEGRAM_V5_EON_HU.replace(
+            '1-0:1.8.1(000047.719*kWh)\r\n',
+            ''
+        )
+
+        with self.assertRaises(InvalidChecksumError):
+            TelegramParser.validate_checksum(corrupted_telegram)
+
+    def test_checksum_missing(self):
+        # Remove the checksum value causing a ParseError.
+        corrupted_telegram = TELEGRAM_V5_EON_HU.replace('!99DA\r\n', '')
+        with self.assertRaises(ParseError):
+            TelegramParser.validate_checksum(corrupted_telegram)