Minimalmodbus add rid175

conf/interfacer_examples/MinimalModbus/.gitkeep

@@ -0,0 +1 @@
+

conf/interfacer_examples/MinimalModbus/minimalmodbus.conf

@@ -0,0 +1,86 @@
+[[SDM120]]
+    Type = EmonHubMinimalModbusInterfacer
+    [[[init_settings]]]
+        device = /dev/ttyUSB0
+        baud = 2400
+        parity = none
+    [[[runtimesettings]]]
+        pubchannels = ToEmonCMS,
+        read_interval = 10
+        nodename = sdm120
+        # prefix = sdm_
+        [[[[meters]]]]
+            [[[[[sdm120a]]]]]
+                address = 1
+                type = sdm120
+                registers = 0,6,12,18,30,70,72,74,76
+                names = V,I,P,VA,PF,FR,EI,EE,RI
+                precision = 2,3,1,1,3,3,3,3,3
+            [[[[[sdm120b]]]]]
+                address = 2
+                type = sdm120
+                registers = 0,6,12,18,30,70,72,74,76
+                names = V,I,P,VA,PF,FR,EI,EE,RI
+                precision = 2,3,1,1,3,3,3,3,3
+
+
+[[SDM630]]
+    Type = EmonHubMinimalModbusInterfacer
+    [[[init_settings]]]
+        device = /dev/ttyUSB1
+        baud = 9600
+    [[[runtimesettings]]]
+        pubchannels = ToEmonCMS,
+        read_interval = 10
+        nodename = sdm630
+        # prefix = sdm_
+        registers = 0,1,2,3,4,5,6,7,8,26,36,37
+        names =  V1,V2,V3,I1,I2,I3,P1,P2,P3,TotalPower,Import_kWh,Export_kWh
+        precision = 2,2,2,2,2,2,2,2,2,2,2,2
+
+[[modbusRTU]]
+    Type = EmonHubMinimalModbusInterfacer
+    [[[init_settings]]]
+        device = /dev/ttyUSB0
+        baud = 9600
+        parity = none
+    [[[runtimesettings]]]
+        pubchannels = ToEmonCMS,
+        read_interval = 10
+        nodename = rid175
+        # prefix = rid_
+        [[[[meters]]]]
+            [[[[[rid175]]]]]
+                address = 1
+                type = rid175
+                registers = 0,6,8,10,14,16,18
+                names = TotalkWh,V,A,Power,KVA,PF,FR
+                scales = 0.01,0.1,0.1,0.01,0.01,0.001,0.01
+            [[[[[sdm120]]]]]
+                address = 2
+                type = sdm120
+                registers = 0,6,12,18,30,70,72,74,76
+                names = V,I,P,VA,PF,FR,EI,EE,RI
+                precision = 2,3,1,1,3,3,3,3,3
+
+[[SAMSUNG-ASHP-MIB19N]]
+    Type = EmonHubMinimalModbusInterfacer
+    [[[init_settings]]]
+        device = /dev/ttyUSB0
+        baud = 9600
+        parity = even
+    [[[runtimesettings]]]
+        pubchannels = ToEmonCMS,
+        read_interval = 10
+        nodename = samsung-ashp
+        # prefix = sdm_
+        [[[[meters]]]]
+            [[[[[ashp]]]]]
+                address = 1
+                type = mib19n
+                registers = 75,74,72,65,66,68,52,59,58,2,79
+                names = dhw_temp,dhw_target,dhw_status,return_temp,flow_temp,flow_target,heating_status,indoor_temp,indoor_target, defrost_status, away_status
+                scales = 0.1,0.1,1,0.1,0.1,0.1,1,0.1,0.1,1,1
+                precision = 2,2,1,2,2,2,1,2,2,1,1
+
+

conf/interfacer_examples/MinimalModbus/readme.md

@@ -0,0 +1,127 @@
+## MinimalModbus
+
+The minimalmodbus interfacer supports a number of Modbus-RTU serial connected electricity meters and devices for monitoring the electricity supply of heat pumps, 
+EV Chargers Solar etc.
+One or more USB to RS485 converter is needed to read from the modbus output of the meter such as: https://www.amazon.co.uk/gp/product/B07SD65BVF. 
+
+Multiple meters of different types can be mixed on the same serial interface provided the serial parameters of all the meters is the same (Baud rate, parity stop bits)
+
+### Supported Meters include
+**SDM120**
+A single phase bi-directional electricity meter provides MID certified electricity monitoring up to 45A, ideal for monitoring the electricity supply of heat pumps
+EV chargers, Solar etc. 
+The SDM120 meter comes in a number of different variants, be sure to order the version with a modbus output.
+
+**SDM630**
+A single/ three phase bi-directional electricity meter provides MID certified electricity monitoring up to 100A, ideal for monitoring the electricity supply of heat pumps
+EV chargers, Solar etc. 
+The SDM630 meter comes in a number of different variants, be sure to order the version with a modbus output.
+
+**RI-D175**
+A low cost single phase unidirectional (Import only) electricity meter provides MID certified electricity monitoring up to 45A, ideal for monitoring the electricity supply of heat pumps
+EV chargers, Solar etc. 
+The RI-D175 meter comes in a number of different variants, be sure to order the version with a modbus output.
+https://www.rayleigh.com/media/uploads/RI_Data_Sheet_RI-D175_MID_01_12_20.pdf
+
+**SAMSUNG-ASHP-MIB19N**
+Direct connection to a Samsung ASHP MIB19N
+
+**read_interval:** Interval between readings in seconds
+
+**type:** Meter Type
+
+## SDM120 only Meters
+```
+[[SDM120]]
+    Type = EmonHubMinimalModbusInterfacer
+    [[[init_settings]]]
+        device = /dev/ttyUSB0
+        baud = 2400
+        parity = none
+    [[[runtimesettings]]]
+        pubchannels = ToEmonCMS,
+        read_interval = 10
+        nodename = sdm120
+        # prefix = sdm_
+        [[[[meters]]]]
+            [[[[[sdm120a]]]]]
+                address = 1
+                type = sdm120
+                registers = 0,6,12,18,30,70,72,74,76
+                names = V,I,P,VA,PF,FR,EI,EE,RI
+                precision = 2,3,1,1,3,3,3,3,3
+            [[[[[sdm120b]]]]]
+                address = 2
+                type = sdm120
+                registers = 0,6,12,18,30,70,72,74,76
+                names = V,I,P,VA,PF,FR,EI,EE,RI
+                precision = 2,3,1,1,3,3,3,3,3
+
+```
+## Single SDM630 Meter
+
+```
+[[SDM630]]
+    Type = EmonHubMinimalModbusInterfacer
+    [[[init_settings]]]
+        device = /dev/ttyUSB1
+        baud = 9600
+    [[[runtimesettings]]]
+        pubchannels = ToEmonCMS,
+        read_interval = 10
+        nodename = sdm630
+        # prefix = sdm_
+        registers = 0,1,2,3,4,5,6,7,8,26,36,37
+        names =  V1,V2,V3,I1,I2,I3,P1,P2,P3,TotalPower,Import_kWh,Export_kWh
+        precision = 2,2,2,2,2,2,2,2,2,2,2,2
+```
+## RI-D175 and SDM120 on same interface
+```
+[[modbusRTU]]
+    Type = EmonHubMinimalModbusInterfacer
+    [[[init_settings]]]
+        device = /dev/ttyUSB0
+        baud = 9600
+        parity = none
+    [[[runtimesettings]]]
+        pubchannels = ToEmonCMS,
+        read_interval = 10
+        nodename = rid175
+        # prefix = rid_
+        [[[[meters]]]]
+            [[[[[rid175]]]]]
+                address = 1
+                type = rid175
+                registers = 0,6,8,10,14,16,18
+                names = TotalkWh,V,A,Power,KVA,PF,FR
+                scales = 0.01,0.1,0.1,0.01,0.01,0.001,0.01
+            [[[[[sdm120]]]]]
+                address = 2
+                type = sdm120
+                registers = 0,6,12,18,30,70,72,74,76
+                names = V,I,P,VA,PF,FR,EI,EE,RI
+                precision = 2,3,1,1,3,3,3,3,3
+```
+## Samsung ASHP
+```
+[[SAMSUNG-ASHP-MIB19N]]
+    Type = EmonHubMinimalModbusInterfacer
+    [[[init_settings]]]
+        device = /dev/ttyUSB0
+        baud = 9600
+        parity = even
+    [[[runtimesettings]]]
+        pubchannels = ToEmonCMS,
+        read_interval = 10
+        nodename = samsung-ashp
+        # prefix = sdm_
+        [[[[meters]]]]
+            [[[[[ashp]]]]]
+                address = 1
+                type = mib19n
+                registers = 75,74,72,65,66,68,52,59,58,2,79
+                names = dhw_temp,dhw_target,dhw_status,return_temp,flow_temp,flow_target,heating_status,indoor_temp,indoor_target, defrost_status, away_status
+                scales = 0.1,0.1,1,0.1,0.1,0.1,1,0.1,0.1,1,1
+                precision = 2,2,1,2,2,2,1,2,2,1,1
+
+'''

src/interfacers/EmonHubMinimalModbusInterfacer.py

@@ -12,7 +12,6 @@
         device = /dev/ttyUSB0
         baud = 2400
         parity = none
-        datatype = float
     [[[runtimesettings]]]
         pubchannels = ToEmonCMS,
         read_interval = 10
@@ -21,11 +20,13 @@
         [[[[meters]]]]
             [[[[[sdm120a]]]]]
                 address = 1
+                type = sdm120
                 registers = 0,6,12,18,30,70,72,74,76
                 names = V,I,P,VA,PF,FR,EI,EE,RI
                 precision = 2,3,1,1,3,3,3,3,3
             [[[[[sdm120b]]]]]
                 address = 2
+                type = sdm120
                 registers = 0,6,12,18,30,70,72,74,76
                 names = V,I,P,VA,PF,FR,EI,EE,RI
                 precision = 2,3,1,1,3,3,3,3,3
@@ -36,7 +37,6 @@
         device = /dev/ttyUSB0
         baud = 9600
         parity = even
-        datatype = int
     [[[runtimesettings]]]
         pubchannels = ToEmonCMS,
         read_interval = 10
@@ -45,6 +45,7 @@
         [[[[meters]]]]
             [[[[[ashp]]]]]
                 address = 1
+                type = mib19n
                 registers = 75,74,72,65,66,68,52,59,58,2,79
                 names = dhw_temp,dhw_target,dhw_status,return_temp,flow_temp,flow_target,heating_status,indoor_temp,indoor_target, defrost_status, away_status
                 scales = 0.1,0.1,1,0.1,0.1,0.1,1,0.1,0.1,1,1
@@ -63,12 +64,39 @@
         registers = 0,1,2,3,4,5,6,7,8,26,36,37
         names =  V1,V2,V3,I1,I2,I3,P1,P2,P3,TotalPower,Import_kWh,Export_kWh
         precision = 2,2,2,2,2,2,2,2,2,2,2,2
+
+# different meter types can share the same serial port provided the serial settings are the same
+[[modbusRTU]]
+    Type = EmonHubMinimalModbusInterfacer
+    [[[init_settings]]]
+        device = /dev/ttyUSB0
+        baud = 9600
+        parity = none
+    [[[runtimesettings]]]
+        pubchannels = ToEmonCMS,
+        read_interval = 10
+        nodename = rid175
+        # prefix = rid_
+        [[[[meters]]]]
+            [[[[[rid175]]]]]
+                address = 1
+                type = rid175
+                registers = 0,6,8,10,14,16,18
+                names = TotalkWh,V,A,Power,KVA,PF,FR
+                scales = 0.01,0.1,0.1,0.01,0.01,0.001,0.01
+            [[[[[sdm120]]]]]
+                address = 2
+                type = sdm120
+                registers = 0,6,12,18,30,70,72,74,76
+                names = V,I,P,VA,PF,FR,EI,EE,RI
+                precision = 2,3,1,1,3,3,3,3,3
 
+
 """
 
 """class EmonHubSDM120Interfacer
 
-SDM120 interfacer for use in development
+MinimalModbus interfacer for use in development
 
 """
 
@@ -134,6 +162,23 @@ def rs485_connect(self):
             self._log.error("Could not connect to Modbus device")
             self._rs485 = False
 
+    def bcd_decode(self, bcd_value):
+        """
+        function to decode bcd coded data in long
+        e.g. Rayleigh Instruments RI-D175m
+        """
+        result=0
+
+        for n in range(7,-1,-1):
+                divisor = 2**(n*4)
+                if (divisor <= bcd_value):
+                        # result is decimal digit
+                        result = result + bcd_value//divisor * 10**n
+                        # set value to remainder
+                        bcd_value = bcd_value%divisor
+
+        return result
+
     def read(self):
         """Read data and process
 
@@ -157,12 +202,21 @@ def read(self):
                     # Support for multiple MBUS meters on a single bus
                     for meter in self._settings['meters']:
                         self._rs485.address = self._settings['meters'][meter]['address']
+                        meter_type = self._settings['meters'][meter]['type']
 
                         for i in range(0,len(self._settings['meters'][meter]['registers'])):
                             register_count += 1
                             valid = True
                             try:
-                                if self.datatype == 'int':
+                                if meter_type == "sdm120":
+                                    value = self._rs485.read_float(int(self._settings['meters'][meter]['registers'][i]), functioncode=4, number_of_registers=2)
+                                elif meter_type == "sdm630":
+                                    value = self._rs485.read_float(int(self._settings['meters'][meter]['registers'][i]), functioncode=4, number_of_registers=2)
+                                elif meter_type == "mib19n":
+                                    value = self._rs485.read_register(int(self._settings['meters'][meter]['registers'][i]), functioncode=3)
+                                elif meter_type == 'rid175':
+                                    value = self.bcd_decode(self._rs485.read_long(int(self._settings['meters'][meter]['registers'][i]), functioncode=4, signed = False, byteorder = 0))
+                                elif self.datatype == 'int':
                                     value = self._rs485.read_register(int(self._settings['meters'][meter]['registers'][i]), functioncode=3)
                                 elif self.datatype == 'float':
                                     value = self._rs485.read_float(int(self._settings['meters'][meter]['registers'][i]), functioncode=4, number_of_registers=2)
@@ -209,7 +263,6 @@ def read(self):
 
         return False
 
-
     def set(self, **kwargs):
         for key, setting in self._modbus_settings.items():
             # Decide which setting value to use
@@ -237,6 +290,7 @@ def set(self, **kwargs):
                 for meter in setting:
                     # default
                     address = 1
+                    meter_type = ""
                     registers = []
                     names = []
                     precision = []
@@ -245,6 +299,9 @@ def set(self, **kwargs):
                     if 'address' in setting[meter]:
                         address = int(setting[meter]['address'])
                         self._log.info("Setting %s meters %s address %s", self.name, meter, address)
+
+                    if 'type' in setting[meter]:
+                        meter_type = str(setting[meter]['type'])
 
                     if 'registers' in setting[meter]:
                         for reg in setting[meter]['registers']:
@@ -269,6 +326,7 @@ def set(self, **kwargs):
                     #assign
                     self._settings['meters'][meter] = {
                         'address':address,
+                        'type':meter_type,
                         'registers':registers,
                         'names':names,
                         'precision':precision,