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Added python script to read ModBus data
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| #!/usr/bin/python | ||
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| import minimalmodbus | ||
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| rs485 = minimalmodbus.Instrument('/dev/ttyUSB0', 1) | ||
| rs485.serial.baudrate = 9600 | ||
| rs485.serial.bytesize = 8 | ||
| rs485.serial.parity = minimalmodbus.serial.PARITY_NONE | ||
| rs485.serial.stopbits = 1 | ||
| rs485.serial.timeout = 1 | ||
| rs485.debug = False | ||
| rs485.mode = minimalmodbus.MODE_RTU | ||
| print rs485 | ||
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| Volts = rs485.read_float(0, functioncode=4, numberOfRegisters=2) | ||
| Current = rs485.read_float(6, functioncode=4, numberOfRegisters=2) | ||
| Active_Power = rs485.read_float(12, functioncode=4, numberOfRegisters=2) | ||
| Apparent_Power = rs485.read_float(18, functioncode=4, numberOfRegisters=2) | ||
| Reactive_Power = rs485.read_float(24, functioncode=4, numberOfRegisters=2) | ||
| Power_Factor = rs485.read_float(30, functioncode=4, numberOfRegisters=2) | ||
| Phase_Angle = rs485.read_float(36, functioncode=4, numberOfRegisters=2) | ||
| Frequency = rs485.read_float(70, functioncode=4, numberOfRegisters=2) | ||
| Import_Active_Energy = rs485.read_float(72, functioncode=4, numberOfRegisters=2) | ||
| Export_Active_Energy = rs485.read_float(74, functioncode=4, numberOfRegisters=2) | ||
| Import_Reactive_Energy = rs485.read_float(76, functioncode=4, numberOfRegisters=2) | ||
| Export_Reactive_Energy = rs485.read_float(78, functioncode=4, numberOfRegisters=2) | ||
| Total_Active_Energy = rs485.read_float(342, functioncode=4, numberOfRegisters=2) | ||
| Total_Reactive_Energy = rs485.read_float(344, functioncode=4, numberOfRegisters=2) | ||
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| print 'Voltage: {0:.1f} Volts'.format(Volts) | ||
| print 'Current: {0:.1f} Amps'.format(Current) | ||
| print 'Active power: {0:.1f} Watts'.format(Active_Power) | ||
| print 'Apparent power: {0:.1f} VoltAmps'.format(Apparent_Power) | ||
| print 'Reactive power: {0:.1f} VAr'.format(Reactive_Power) | ||
| print 'Power factor: {0:.1f}'.format(Power_Factor) | ||
| print 'Phase angle: {0:.1f} Degree'.format(Phase_Angle) | ||
| print 'Frequency: {0:.1f} Hz'.format(Frequency) | ||
| print 'Import active energy: {0:.3f} Kwh'.format(Import_Active_Energy) | ||
| print 'Export active energy: {0:.3f} kwh'.format(Export_Active_Energy) | ||
| print 'Import reactive energy: {0:.3f} kvarh'.format(Import_Reactive_Energy) | ||
| print 'Export reactive energy: {0:.3f} kvarh'.format(Export_Reactive_Energy) | ||
| print 'Total active energy: {0:.3f} kwh'.format(Total_Active_Energy) | ||
| print 'Total reactive energy: {0:.3f} kvarh'.format(Total_Reactive_Energy) | ||
| print 'Current Yield (V*A): {0:.1f} Watt'.format(Volts * Current) |