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7 Commits
bbf202b74d
...
0771aacf20
Author | SHA1 | Date |
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Carsten Schmiemann | 0771aacf20 | |
Carsten Schmiemann | 4897387ab0 | |
Carsten Schmiemann | 02b5503270 | |
Carsten Schmiemann | d02c67e3d3 | |
Carsten Schmiemann | 88fbc49fcb | |
Carsten Schmiemann | fdc54769d6 | |
Carsten Schmiemann | 41d57160be |
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@ -19,7 +19,7 @@ sys.path.insert(1, os.path.join(os.path.dirname(__file__), '/opt/victronenergy/d
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from vedbus import VeDbusService
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class NodeRedMetergrid-meter:
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class NodeRedGridMeter:
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def __init__(self, servicename, deviceinstance, paths, productname='grid-meter', connection='Node RED HTTP JSON service'):
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self._dbusservice = VeDbusService("{}.http_{:02d}".format(servicename, deviceinstance))
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self._paths = paths
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@ -68,21 +68,38 @@ class NodeRedMetergrid-meter:
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return int(value)
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# if there is a grid meter disconnect or some other error, set mandatory values to None to stop ESS and set MPs to passthrough
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def _errorState(self):
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self._dbusservice['/Connected'] = 0
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self._dbusservice['/Ac/Power'] = None
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self._dbusservice['/Ac/Current'] = None
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self._dbusservice['/Ac/L1/Voltage'] = None
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self._dbusservice['/Ac/L2/Voltage'] = None
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self._dbusservice['/Ac/L3/Voltage'] = None
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self._dbusservice['/Ac/L1/Current'] = None
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self._dbusservice['/Ac/L2/Current'] = None
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self._dbusservice['/Ac/L3/Current'] = None
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self._dbusservice['/Ac/L1/Power'] = None
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self._dbusservice['/Ac/L2/Power'] = None
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self._dbusservice['/Ac/L3/Power'] = None
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return True
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def _getNodeRedData(self):
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URL = "http://localhost:1880/meters"
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try:
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meter_r = requests.get(url = URL, timeout=5)
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except requests.exceptions.RequestException as e:
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self._dbusservice['/Connected'] = 0
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self._errorState()
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raise ConnectionError("No response from NodeRed - %s" % (URL))
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meter_data = meter_r.json()
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# check for Json
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if not meter_data:
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self._dbusservice['/Connected'] = 0
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self._errorState()
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raise ValueError("Converting response to JSON failed")
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# if there is not error parsing data, set connected to true
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self._dbusservice['/Connected'] = 1
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return meter_data
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@ -94,7 +111,7 @@ class NodeRedMetergrid-meter:
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def _update(self):
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try:
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#get data from NodeRed 3em
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#get parsed data from NodeRed fuction
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meter_data = self._getNodeRedData()
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#send data to DBus
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@ -125,14 +142,17 @@ class NodeRedMetergrid-meter:
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logging.debug("---");
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# increment UpdateIndex - to show that new data is available
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index = self._dbusservice['/UpdateIndex'] + 1 # increment index
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if index > 255: # maximum value of the index
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index = 0 # overflow from 255 to 0
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self._dbusservice['/UpdateIndex'] = index
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if self._dbusservice['/Connected'] == 1 :
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index = self._dbusservice['/UpdateIndex'] + 1 # increment index
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if index > 255: # maximum value of the index
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index = 0 # overflow from 255 to 0
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self._dbusservice['/UpdateIndex'] = index
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#update lastupdate vars
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self._lastUpdate = time.time()
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self._lastUpdate = time.time()
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except Exception as e:
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self._errorState()
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logging.critical('Error at %s', '_update', exc_info=e)
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# return true, otherwise add_timeout will be removed from GObject - see docs http://library.isr.ist.utl.pt/docs/pygtk2reference/gobject-functions.html#function-gobject--timeout-add
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@ -141,18 +161,17 @@ class NodeRedMetergrid-meter:
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def _handlechangedvalue(self, path, value):
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logging.debug("someone else updated %s to %s" % (path, value))
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return True # accept the change
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def main():
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#configure logging
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logging.basicConfig( format='%(asctime)s,%(msecs)d %(name)s %(levelname)s %(message)s',
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datefmt='%Y-%m-%d %H:%M:%S',
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level=logging.INFO,
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handlers=[
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logging.FileHandler("%s/current.log" % (os.path.dirname(os.path.realpath(__file__)))),
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logging.StreamHandler()
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])
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#handlers=[
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# logging.FileHandler("%s/current.log" % (os.path.dirname(os.path.realpath(__file__)))),
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# logging.StreamHandler()
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#]
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)
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try:
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logging.info("Start");
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@ -168,7 +187,7 @@ def main():
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_v = lambda p, v: (str(round(v, 1)) + ' V')
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#start our main-service
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pvac_output = NodeRedMetergrid-meter(
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pvac_output = NodeRedGridMeter(
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servicename='com.victronenergy.grid',
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deviceinstance=40,
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paths={
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@ -38,7 +38,7 @@ class NodeRedPVinverter:
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self._dbusservice.add_path('/CustomName', productname)
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self._dbusservice.add_path('/FirmwareVersion', 1.0)
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self._dbusservice.add_path('/HardwareVersion', 0)
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self._dbusservice.add_path('/Connected', 1)
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self._dbusservice.add_path('/Connected', 0)
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self._dbusservice.add_path('/Position', 0)
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self._dbusservice.add_path('/Serial', 12345678)
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self._dbusservice.add_path('/UpdateIndex', 0)
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@ -66,21 +66,35 @@ class NodeRedPVinverter:
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return int(value)
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# if there is a pv meter disconnect or some other error, set mandatory values to None to tidy up vrm view
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def _errorState(self):
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self._dbusservice['/Connected'] = 0
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self._dbusservice['/Ac/Voltage'] = None
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self._dbusservice['/Ac/L1/Voltage'] = None
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self._dbusservice['/Ac/Current'] = None
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self._dbusservice['/Ac/L1/Current'] = None
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self._dbusservice['/Ac/Power'] = None
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self._dbusservice['/Ac/L1/Power'] = None
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return True
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def _getNodeRedData(self):
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URL = "http://localhost:1880/meters"
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meter_r = requests.get(url = URL)
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# check for response
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if not meter_r:
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self._errorState()
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raise ConnectionError("No response from NodeRed - %s" % (URL))
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meter_data = meter_r.json()
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# check for Json
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if not meter_data:
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self._errorState()
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raise ValueError("Converting response to JSON failed")
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# if there is no error parsing data, set connected to true
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self._dbusservice['/Connected'] = 1
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return meter_data
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@ -91,7 +105,7 @@ class NodeRedPVinverter:
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def _update(self):
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try:
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#get data from NodeRed 3em
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#get data from NodeRed
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meter_data = self._getNodeRedData()
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#send data to DBus
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@ -118,6 +132,7 @@ class NodeRedPVinverter:
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#update lastupdate vars
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self._lastUpdate = time.time()
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except Exception as e:
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self._errorState()
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logging.critical('Error at %s', '_update', exc_info=e)
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# return true, otherwise add_timeout will be removed from GObject - see docs http://library.isr.ist.utl.pt/docs/pygtk2reference/gobject-functions.html#function-gobject--timeout-add
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@ -134,10 +149,11 @@ def main():
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logging.basicConfig( format='%(asctime)s,%(msecs)d %(name)s %(levelname)s %(message)s',
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datefmt='%Y-%m-%d %H:%M:%S',
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level=logging.INFO,
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handlers=[
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logging.FileHandler("%s/current.log" % (os.path.dirname(os.path.realpath(__file__)))),
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logging.StreamHandler()
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])
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#handlers=[
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# logging.FileHandler("%s/current.log" % (os.path.dirname(os.path.realpath(__file__)))),
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# logging.StreamHandler()
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#])
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)
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try:
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logging.info("Start");
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@ -158,20 +174,20 @@ def main():
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deviceinstance=46,
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paths={
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'/Ac/Energy/Forward': {'initial': None, 'textformat': _kwh}, # energy produced by pv inverter
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'/Ac/Power': {'initial': 0, 'textformat': _w},
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'/Ac/Power': {'initial': None, 'textformat': _w},
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'/Ac/Current': {'initial': 0, 'textformat': _a},
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'/Ac/Voltage': {'initial': 0, 'textformat': _v},
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'/Ac/Current': {'initial': None, 'textformat': _a},
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'/Ac/Voltage': {'initial': None, 'textformat': _v},
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'/Ac/L1/Voltage': {'initial': 0, 'textformat': _v},
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'/Ac/L2/Voltage': {'initial': 0, 'textformat': _v},
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'/Ac/L3/Voltage': {'initial': 0, 'textformat': _v},
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'/Ac/L1/Current': {'initial': 0, 'textformat': _a},
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'/Ac/L2/Current': {'initial': 0, 'textformat': _a},
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'/Ac/L3/Current': {'initial': 0, 'textformat': _a},
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'/Ac/L1/Power': {'initial': 0, 'textformat': _w},
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'/Ac/L2/Power': {'initial': 0, 'textformat': _w},
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'/Ac/L3/Power': {'initial': 0, 'textformat': _w},
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'/Ac/L1/Voltage': {'initial': None, 'textformat': _v},
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'/Ac/L2/Voltage': {'initial': None, 'textformat': _v},
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'/Ac/L3/Voltage': {'initial': None, 'textformat': _v},
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'/Ac/L1/Current': {'initial': None, 'textformat': _a},
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'/Ac/L2/Current': {'initial': None, 'textformat': _a},
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'/Ac/L3/Current': {'initial': None, 'textformat': _a},
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'/Ac/L1/Power': {'initial': None, 'textformat': _w},
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'/Ac/L2/Power': {'initial': None, 'textformat': _w},
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'/Ac/L3/Power': {'initial': None, 'textformat': _w},
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'/Ac/L1/Energy/Forward': {'initial': None, 'textformat': _kwh},
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'/Ac/L2/Energy/Forward': {'initial': None, 'textformat': _kwh},
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'/Ac/L3/Energy/Forward': {'initial': None, 'textformat': _kwh},
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