def __init__(self):
# call parent constructor
super().__init__()
# setup OPC interface
if self.config['OPC_STORAGE']['enabled']:
self.opcclient = OpcClient(self.config['OPC_STORAGE']['url'],
self.config['OPC_STORAGE']['password'])
# setup power calculator
self.calculator = PowerCalculator(self.config)
class SunPower(StandardScript):
def __init__(self):
# call parent constructor
super().__init__()
# setup OPC interface
if self.config['OPC_STORAGE']['enabled']:
self.opcclient = OpcClient(self.config['OPC_STORAGE']['url'],
self.config['OPC_STORAGE']['password'])
# setup power calculator
self.calculator = PowerCalculator(self.config)
def process(self):
try:
# process effective angles
self.calculator.process(self.config['WINDOWS'])
# store power values
if self.config['OPC_STORAGE']['enabled']:
self.save_opc()
if self.config['FILE_STORAGE']['enabled']:
self.save_file()
except Exception as e:
logging.getLogger().error(traceback.format_exc())
raise
return self.calculator.power_values
def save_opc(self):
# store OPC requests
opc_tags = []
types = []
values = []
# setup values
for i in range(len(self.config['WINDOWS'])):
if self.config['WINDOWS'][i]['opc']['power'] is not None:
opc_tags.append(self.config['WINDOWS'][i]['opc']['power'])
types.append('float')
values.append(self.calculator.power_values[i])
# write data to OPC
if len(opc_tags) > 0:
self.opcclient.write(opc_tags, types, values)
def save_file(self):
config = configparser.ConfigParser()
# read existing file data
if os.path.isfile(self.config['FILE_STORAGE']['filename']):
try:
config.read(self.config['FILE_STORAGE']['filename'])
except configparser.ParsingError as e:
logging.getLogger().error("Error parsing file storage: " + str(e))
# recreate data of this script
config['sunpower'] = {}
for i in range(len(self.config['WINDOWS'])):
config['sunpower'][self.config['WINDOWS'][i]['name']] = \
str(self.calculator.power_values[i])
# save data file
with open(self.config['FILE_STORAGE']['filename'], 'w') as configfile:
config.write(configfile)
