def __init__(self, serial_device, slave_address, debug=False, cache=True, retries=3):
"""Initialize the driver
Args:
serial_device (str): The serial device to use
slave_address (int): The address of the slave device
debug (bool): Whether debugging output from minimal modbus should be enabled
cache (bool): Whether system configuration values (which are expected not to
change within the runtime of the program) should be cached
"""
LOGGER.info('__init__ called, serial device: %s, slave address: %s',
serial_device, slave_address)
Instrument.__init__(self, serial_device, slave_address)
self.serial.baudrate = 9600
self.serial.stopbits = 2
self.serial.timeout = 2.0
self.retries = retries
# Variables
self.debug = debug
self.cache = cache
# Cache
self.system_conf = {}
self.channel_conf = {}
LOGGER.info('__init__ complete')
def __init__(self,
serial_device,
slave_address,
debug=False,
cache=True,
retries=3):
"""Initialize the driver
Args:
serial_device (str): The serial device to use
slave_address (int): The address of the slave device
debug (bool): Whether debugging output from minimal modbus should be enabled
cache (bool): Whether system configuration values (which are expected not to
change within the runtime of the program) should be cached
"""
LOGGER.info('__init__ called, serial device: %s, slave address: %s',
serial_device, slave_address)
Instrument.__init__(self, serial_device, slave_address)
self.serial.baudrate = 9600
self.serial.stopbits = 2
self.serial.timeout = 2.0
self.retries = retries
# Variables
self.debug = debug
self.cache = cache
# Cache
self.system_conf = {}
self.channel_conf = {}
LOGGER.info('__init__ complete')
def __init__(self, port, slaveaddress, bimaster=False):
Instrument.__init__(self, port, slaveaddress)
self.serial.baudrate = 9600
self.serial.bytesize = serial.EIGHTBITS
self.serial.parity = serial.PARITY_NONE
self.serial.stopbits = serial.STOPBITS_ONE
self.serial.timeout = 1
self.mode = MODE_RTU
self.bimaster = bimaster
class EUROTHERM_MODULE():
""" Class to manipulate a single Eurotherm Module """
def __init__(self, path, number, digits):
""" Instrument class initalizes a connection through the desired port."""
# Path = COM / dev/tty*** Port
self.device = Instrument(path, number)
self.device.debug = False
# Baudrate for Module is 9600
self.device.serial.baudrate = 9600
# Number Of Decimals used by the module. Temperature has 1 decimal while flowrate has 0.
self.digits = digits
# Select's the setpoint found in the config file as the active setpoint.
self.set_active_setpoint(configuration['sp_select_default'])
# Writing
def set_active_setpoint(self, value):
""" Set's the active setpoint to the value specified. """
if 0 <= value and value <= 1:
self.device.write_register(configuration['sp_select_default'],
value, self.digits)
def set_setpoint(self, value):
""" Set's the value in the active setpoint to the value given """
if self.read_setpoint_low_limit(
) <= value and value <= self.read_setpoint_high_limit():
self.device.write_register(configuration['sp_select_address'],
value, self.digits)
# Reading
def read_value(self):
""" Read value from the first register. This is the current value found on the Eurotherm Module. """
return self.device.read_register(1, self.digits)
def read_setpoint_select(self):
""" Reads the active setpoint from the 15th register. """
return self.device.read_register(15, self.digits)
def read_setpoint_value(self):
""" Reads the active setpoint's value from the register specified in the config.py. """
return self.device.read_register(configuration['sp_value_address'],
self.digits)
def read_setpoint_high_limit(self):
""" Reads the active setpoint's high limit value from the register specified in the config.py. """
return self.device.read_register(configuration['sp_high_limit'],
self.digits)
def read_setpoint_low_limit(self):
""" Reads the active setpoint's low limit value from the register specified in the config.py. """
return self.device.read_register(configuration['sp_low_limit'],
self.digits)
def __init__(self, port):
""" inititalizes the ModbusInstrument at a certain COM-Port
Arguments:
port -- path to serial port, e.g. for Windows "COM1"
"""
ModbusInstrument.__init__(self, port, 1)
self.lock = Lock()
self.
self.loops = []
for i in range(0, 8):
self.loops.append(Loop(self, i * 256, self.lock))
def __init__(self, path, number, digits):
""" Instrument class initalizes a connection through the desired port."""
# Path = COM / dev/tty*** Port
self.device = Instrument(path, number)
self.device.debug = False
# Baudrate for Module is 9600
self.device.serial.baudrate = 9600
# Number Of Decimals used by the module. Temperature has 1 decimal while flowrate has 0.
self.digits = digits
# Select's the setpoint found in the config file as the active setpoint.
self.set_active_setpoint(configuration['sp_select_default'])
def connect(self):
try:
if(self.is_connected):
self._instrument.close()
self._instrument = Instrument(
port=self._port, mode=MODE_RTU, slaveaddress=self._slave_addr)
self._instrument.serial.baudrate = self._baudrate
self._instrument.serial.timeout = 1
self._instrument.mode = MODE_RTU
# RCU Hardware Setting
# Read RCU Hardware Setting
# firmware version information
firmware_version_number_reg = self._instrument.read_registers(registeraddress=_MODBUS_ADDRESS_FIRMWARE_VERSION_NUMBER, number_of_registers=1,
functioncode=_MODBUS_READ_INPUT_REGISTERS)
self.firmware_version_number = firmware_version_number_reg[0]
# runtime voltage setting information
runtime_voltage_setting_reg = self._instrument.read_registers(registeraddress=_MODBUS_ADDRESS_RUNTIME_VOLTAGE_SETTING, number_of_registers=1,
functioncode=_MODBUS_READ_HOLDING_REGISTERS)
self.runtime_voltage_setting = float(
runtime_voltage_setting_reg[0])/128
# runtime currnet setting information
runtime_current_setting_reg = self._instrument.read_registers(registeraddress=_MODBUS_ADDRESS_RUNTIME_CURRENT_SETTING, number_of_registers=1,
functioncode=_MODBUS_READ_HOLDING_REGISTERS)
self.runtime_current_setting = float(
runtime_current_setting_reg[0])/128
# Set voltage conversion
if self.runtime_voltage_setting > 48.0:
self.voltage_conversion = 0.02229
else:
self.voltage_conversion = 0.01155
if self.runtime_voltage_setting > 48.0:
self.current_conversion = 0.02014
else:
self.current_conversion = 0.04028
return True
except:
self.is_connected = False
return False
def __init__(self, label, slave_id, slave_address, setupsAdr, setupsCount,
variablesAdr, variablesCount, port):
self.label = label
self.id = slave_id
self.port = port
self.slave_address = slave_address
self.setupsAdr = setupsAdr
self.setupsCount = setupsCount
self.variablesAdr = variablesAdr
self.variablesCount = variablesCount
try:
self.instrument = Instrument(self.port, slave_address)
except:
self.status = "ERROR"
traceback.print_exc()
self.status = "NEW"
self.variable_values = []
self.config_values = []
def open_serial(self):
if (self._serialtype == 'serial'):
try:
self._serial = Serial()
self._serial.port = self._port
self._serial.baudrate = self._baudrate
self._serial.open()
self.Warning_Signal.emit('打开串口成功')
return 1
except:
self.Warning_Signal.emit('打开串口失败')
return 0
elif(self._serialtype == 'modbus'):
try:
self._serial = Instrument(self._port, 1)
self._serial.serial.baudrate = self._baudrate
self.Warning_Signal.emit('打开串口成功')
return 1
except:
self.Warning_Signal.emit('打开串口失败')
return 0
def initInstrument(self):
global SDM630v2, SDM120
energy_device_data = EnergyDeviceModel.get()
self.logger.debug(
'found device: %s %s %d' %
(energy_device_data.energy_device_id, energy_device_data.port_name,
energy_device_data.slave_address))
try:
self.instrument = Instrument(
port=energy_device_data.port_name,
slaveaddress=energy_device_data.slave_address)
except Exception as e:
self.logger.error("initInstrument() failed: {}".format(str(e)))
raise
# Get this from the database
self.instrument.serial.baudrate = energy_device_data.baudrate
self.instrument.serial.bytesize = energy_device_data.bytesize
self.instrument.serial.parity = energy_device_data.parity
self.instrument.serial.stopbits = energy_device_data.stopbits
self.instrument.serial.timeout = energy_device_data.serial_timeout
self.instrument.debug = energy_device_data.debug
self.instrument.mode = energy_device_data.mode
self.instrument.close_port_after_each_call = energy_device_data.close_port_after_each_call
self.modbusConfig = SDM630v2
for i in range(len(modbusConfigOptions)):
if energy_device_data.modbus_config == modbusConfigOptions[i][
MB.NAME]:
self.modbusConfig = modbusConfigOptions[i]
self.logger.debug("Modbus config {} selected (default: {}).".format(
self.modbusConfig[MB.NAME], SDM630v2[MB.NAME]))
self.readSerialNumber(energy_device_data.port_name,
energy_device_data.slave_address)
def connect_to(portName: str):
print('connecting to ', portName)
if data.modbus:
data.modbus.serial.close()
try:
data.modbus = Instrument(portName, 1)
data.modbus.serial.baudrate = 115200
data.modbus.serial.timeout = 0.1
data.modbus.serial.rts = 0
data.modbus.serial.dtr = 0
print(data.modbus.serial.rts, data.modbus.serial.dtr)
data.modbus.clear_buffers_before_each_transaction = True
data.channel.send(ViewMessage.CONNECTED(portName))
except SerialException:
data.modbus = None
data.channel.send(ViewMessage.ERROR('Connessione fallita!'))
def read_string(self, *args, **kwargs):
"""Read string from instrument (with retries)
The argument definition is the same as for the minimalmodbus method, see the full
documentation `read_string
<https://minimalmodbus.readthedocs.io/en/master/apiminimalmodbus
.html#minimalmodbus.Instrument.read_string>`_ for details.
"""
for retry in range(0, self.retries + 1):
try:
return Instrument.read_string(self, *args, **kwargs)
except ValueError as exception:
if retry < self.retries:
LOGGER.warning("Communication error in read_string, retrying %s "
"out of %s times", retry + 1, self.retries)
continue
else:
raise exception
def read_string(self, *args, **kwargs):
"""Read string from instrument (with retries)
The argument definition is the same as for the minimalmodbus method, see the full
documentation `read_string
<https://minimalmodbus.readthedocs.io/en/master/apiminimalmodbus
.html#minimalmodbus.Instrument.read_string>`_ for details.
"""
for retry in range(0, self.retries + 1):
try:
return Instrument.read_string(self, *args, **kwargs)
except ValueError as exception:
if retry < self.retries:
LOGGER.warning(
"Communication error in read_string, retrying %s "
"out of %s times", retry + 1, self.retries)
continue
else:
raise exception
def main():
# Serial port parameters
port = "COM2"
slaveNumber = 1
BAUDRATE = 9600
STOPBITS = 1
PARITY = "E"
BYTESIZE = 8
# Register parameters.
# registers - list of registers which will be logged.
#START_REGISTER = 1100
#NUMBER_OF_REGISTERS = 10
registers = {'engine_right':1100, 'engine_left':1101, 'light_level':1102, \
'camera_id':1103, 'noop':1104, 'motor_direction_left':1105, \
'motor_direction_right':1106}
# open log file
name = "logs/log_"+time.strftime("%d_%b_%Y_%H_%M_%S") + ".txt"
logFile = open(name, 'a')
# Connect to robot
motka = Instrument(port, slaveNumber)
motka.serial.baudrate = BAUDRATE
motka.serial.stopbits = STOPBITS
motka.serial.parity = PARITY
motka.serial.bytesize = BYTESIZE
#Read data from device and write it to log file
print "Logger started. If you want to stop press Cntrl+C "
try:
while 1:
data = []
for value in registers.values():
data.append( motka.read_register(value) )
writeData(logFile, data)
except KeyboardInterrupt:
print "Logger was stopped by keyboard interrupt"
except:
logFile.close()
motka.close()
raise
logFile.close()
motka.close()
#!/usr/bin/env python
import sys
import time
from minimalmodbus import Instrument
if __name__ == "__main__":
if len(sys.argv) < 2:
print 'Usage: %s [COM]' % sys.argv[0]
exit(1)
port = sys.argv[1]
inst = Instrument(port, 1)
inst.serial.baudrate = 57600
inst.serial.timeout = 0.1
for i in range(1, 16):
try:
inst.address = i
response = inst.read_registers(0x0001, 1)
except IOError:
pass
else:
print hex(response[0])
fw_version = response[0] & 0x0FFF
hw_version = response[0] >> 12
print 'Slave {}: FW {:03X}, HW {:01X}'.format(i, fw_version, hw_version)
time.sleep(0.01)
def packet_print(packet):
return ':'.join('{:02X}'.format(ord(c)) for c in packet)
if __name__ == "__main__":
if len(sys.argv) < 4:
print 'Usage: %s [COM] [SLAVE_ADDRESS] [MSP.bin]' % sys.argv[0]
exit(1)
print ':: Modbus updater'
port = sys.argv[1]
slave_address = int(sys.argv[2])
fmw = sys.argv[3]
inst = Instrument(port, slave_address)
inst.serial.baudrate = 57600
inst.serial.timeout = 0.1
# print inst
# inst.debug = True
# Try to reset FW and run bootloader.
print 'Sending reset to FW... ',
try:
inst.write_registers(RESET_ADDRESS, [0xFFFF])
except IOError:
print '[no response]'
except ValueError:
print '[wrong response]'
else:
print '[OK]'
def packet_print(packet):
return ':'.join('{:02X}'.format(ord(c)) for c in packet)
if __name__ == "__main__":
if len(sys.argv) < 4:
print 'Usage: %s [COM] [SLAVE_ADDRESS] [MSP.bin]' % sys.argv[0]
exit(1)
print ':: Modbus updater'
port = sys.argv[1]
slave_address = int(sys.argv[2])
fmw = sys.argv[3]
inst = Instrument(port, slave_address)
inst.serial.baudrate = 57600
inst.serial.timeout = 0.1
# print inst
# inst.debug = True
# Try to reset FW and run bootloader.
print 'Sending reset to FW... ',
try:
inst.write_registers(RESET_ADDRESS, [0xFFFF])
except IOError:
print '[no response]'
except ValueError:
print '[wrong response]'
else:
print '[OK]'
from minimalmodbus import Instrument
if len(sys.argv) < 3:
print('Usage: {} [EFFECT] [COM] [SLAVE] <baudrate=57600>'.format(
sys.argv[0]))
exit(1)
effect = sys.argv[1]
port = sys.argv[2]
slave = int(sys.argv[3])
try:
baudrate = int(sys.argv[4])
except Exception:
baudrate = 57600
instrument = Instrument(port, slave)
instrument.serial.baudrate = baudrate
instrument.serial.timeout = 1
def signal_handler(signal, frame):
print('Turning all LEDs off.')
instrument.write_registers(0x1000, [0x0000] * NEOPIXEL_SIZE)
sys.exit(0)
signal.signal(signal.SIGINT, signal_handler)
kwargs = {}
effects = ['flash', 'blink', 'noise', 'rainbow', 'blank']
if effect == 'flash':
klass = NeopixelsFlash
elif effect == 'blink':
import signal
import time
from minimalmodbus import Instrument
if len(sys.argv) < 3:
print 'Usage: {} [COM] [SLAVE] <baudrate=57600>'.format(sys.argv[0])
exit(1)
port = sys.argv[1]
slave = int(sys.argv[2])
try:
baudrate = int(sys.argv[3])
except Exception:
baudrate = 57600
instrument = Instrument(port, slave)
instrument.serial.baudrate = baudrate
instrument.serial.timeout = 1
def signal_handler(signal, frame):
print('Turning all LEDs off.')
instrument.write_registers(0x1000, [0x0000] * NEOPIXEL_SIZE)
sys.exit(0)
signal.signal(signal.SIGINT, signal_handler)
led = [[0, 0, 0] for x in xrange(NEOPIXEL_SIZE)]
j = 1
k = 1
print 'Rainbow.'
from minimalmodbus import Instrument
# Number of Modbus reads.
READS = 1000
# Number of registers to be read.
REGISTERS = 1
if __name__ == "__main__":
if len(sys.argv) < 3:
print 'Usage: %s [COM] [SLAVE_ADDRESS]' % sys.argv[0]
exit(1)
port = sys.argv[1]
slave_address = int(sys.argv[2])
inst = Instrument(port, slave_address)
inst.serial.baudrate = 57600
inst.serial.timeout = 1
start_time = time.time()
for i in range(READS):
response = inst.read_registers(0x0000, REGISTERS)
if response[0] != 0x0000:
print 'IR inputs: {:02X}'.format(response[0])
end_time = time.time()
print 'Duration of {} reads from {} register: {:.2f} seconds.'.format(
READS,
REGISTERS,
class Bearing_Serial(QObject):
Warning_Signal = pyqtSignal(str)
def __init__(self, com, baudrate, serialtype):
super(Bearing_Serial, self).__init__()
self._port = com
self._baudrate = baudrate
self._serialtype = serialtype
def set_setting(self, com, baudrate, serialtype):
self._port = com
self._baudrate = baudrate
self._serialtype = serialtype
def open_serial(self):
if (self._serialtype == 'serial'):
try:
self._serial = Serial()
self._serial.port = self._port
self._serial.baudrate = self._baudrate
self._serial.open()
self.Warning_Signal.emit('打开串口成功')
return 1
except:
self.Warning_Signal.emit('打开串口失败')
return 0
elif(self._serialtype == 'modbus'):
try:
self._serial = Instrument(self._port, 1)
self._serial.serial.baudrate = self._baudrate
self.Warning_Signal.emit('打开串口成功')
return 1
except:
self.Warning_Signal.emit('打开串口失败')
return 0
def read_data(self, n=0):
if (self._serialtype == 'serial'):
try:
if n > 0:
return self._serial.read(n)
else:
self._serial.reset_input_buffer()
data = self._serial.readline()
return data
except:
self.Warning_Signal.emit('读取数据失败，请检查串口！')
elif (self._serialtype == 'modbus'):
try:
data = self._serial.read_registers(0, 8)
return data
except:
self.Warning_Signal.emit('读取数据失败，请检查串口！')
def send_data(self, data):
if (self._serialtype == 'serial'):
self._serial.write(data)
def close(self):
if (self._serialtype == 'serial'):
try:
self._serial.close()
except IOError:
self.Warning_Signal.emit('关闭串口失败')
elif (self._serialtype == 'modbus'):
pass
#!/usr/bin/env python
if __name__ == '__main__':
import sys
from minimalmodbus import Instrument
if len(sys.argv) < 3:
print 'Usage: {} [COM] [SLAVE] <baudrate=57600>'.format(sys.argv[0])
exit(1)
port = sys.argv[1]
slave = int(sys.argv[2])
try:
baudrate = int(sys.argv[3])
except Exception:
baudrate = 57600
instrument = Instrument(port, slave)
instrument.serial.baudrate = baudrate
instrument.serial.timeout = 1
instrument.write_registers(
0x0002, # Address
[0xFFFF], # Data, any value will do.
)
class EnergyModbusReader:
energy_device_id = None
instrument = None
appSocketIO = None
modbusConfig = None
def __init__(self, energy_device_id, appSocketIO=None):
self.logger = logging.getLogger(
'nl.oppleo.services.EnergyModbusReader')
self.energy_device_id = energy_device_id
self.appSocketIO = appSocketIO
self.oppleoConfig: OppleoConfig = OppleoConfig()
self.logger.debug('Production environment, calling initInstrument()')
self.initInstrument()
self.threadLock = threading.Lock()
def initInstrument(self):
global SDM630v2, SDM120
energy_device_data = EnergyDeviceModel.get()
self.logger.debug(
'found device: %s %s %d' %
(energy_device_data.energy_device_id, energy_device_data.port_name,
energy_device_data.slave_address))
try:
self.instrument = Instrument(
port=energy_device_data.port_name,
slaveaddress=energy_device_data.slave_address)
except Exception as e:
self.logger.error("initInstrument() failed: {}".format(str(e)))
raise
# Get this from the database
self.instrument.serial.baudrate = energy_device_data.baudrate
self.instrument.serial.bytesize = energy_device_data.bytesize
self.instrument.serial.parity = energy_device_data.parity
self.instrument.serial.stopbits = energy_device_data.stopbits
self.instrument.serial.timeout = energy_device_data.serial_timeout
self.instrument.debug = energy_device_data.debug
self.instrument.mode = energy_device_data.mode
self.instrument.close_port_after_each_call = energy_device_data.close_port_after_each_call
self.modbusConfig = SDM630v2
for i in range(len(modbusConfigOptions)):
if energy_device_data.modbus_config == modbusConfigOptions[i][
MB.NAME]:
self.modbusConfig = modbusConfigOptions[i]
self.logger.debug("Modbus config {} selected (default: {}).".format(
self.modbusConfig[MB.NAME], SDM630v2[MB.NAME]))
self.readSerialNumber(energy_device_data.port_name,
energy_device_data.slave_address)
def readSerialNumber(self, port_name=None, slave_address=None):
self.logger.debug('readSerialNumber()')
if self.modbusConfig[MB.SN][MB.ENABLED]:
if self.modbusConfig[MB.SN][MB.TYPE] == MB.TYPE_REGISTER:
serial_Hi = self.instrument.read_register( \
self.modbusConfig[MB.SN][MB.HI][MB.REGISTER_ADDRESS], \
self.modbusConfig[MB.SN][MB.HI][MB.NUMBER_OF_DECIMALS], \
self.modbusConfig[MB.SN][MB.HI][MB.FUNCTION_CODE], \
self.modbusConfig[MB.SN][MB.HI][MB.SIGNED] \
)
serial_Lo = self.instrument.read_register( \
self.modbusConfig[MB.SN][MB.LO][MB.REGISTER_ADDRESS], \
self.modbusConfig[MB.SN][MB.LO][MB.NUMBER_OF_DECIMALS], \
self.modbusConfig[MB.SN][MB.LO][MB.FUNCTION_CODE], \
self.modbusConfig[MB.SN][MB.LO][MB.SIGNED] \
)
self.logger.debug(
'readSerialNumber() serial_Hi:{} serial_Lo:{}'.format(
serial_Hi, serial_Lo))
self.oppleoConfig.kWhMeterSerial = str((serial_Hi * 65536) +
serial_Lo)
self.logger.info(
'kWh meter serial number: {} (port:{}, address:{})'.format(
self.oppleoConfig.kWhMeterSerial, port_name,
slave_address))
else:
self.logger.warn(
'modbusConfig serialNumber type {} not supported!'.format(
self.modbusConfig[MB.SN][MB.TYPE]))
self.oppleoConfig.kWhMeterSerial = 99999999
else:
self.oppleoConfig.kWhMeterSerial = 99999999
return self.oppleoConfig.kWhMeterSerial
def getTotalKWHHValue(self):
self.logger.debug('Production environment, getting real data')
return self.getProdTotalKWHHValue()
def getMeasurementValue(self):
self.logger.debug('Production environment, getting real data')
return self.getProdMeasurementValue()
def getProdTotalKWHHValue(self):
if self.modbusConfig[MB.TOTAL_ENERGY][MB.TYPE] == MB.TYPE_FLOAT:
return round(
self.try_read_float(
value_desc='kwh',
registeraddress=self.modbusConfig[MB.TOTAL_ENERGY][
MB.REGISTER_ADDRESS],
functioncode=self.modbusConfig[MB.TOTAL_ENERGY][
MB.FUNCTION_CODE],
number_of_registers=self.modbusConfig[MB.TOTAL_ENERGY][
MB.NUMBER_OF_REGISTERS],
byteorder=self.modbusConfig[MB.TOTAL_ENERGY][
MB.BYTE_ORDER]), 1)
else:
self.logger.warn(
'modbusConfig total_kWh type {} not supported!'.format(
self.modbusConfig[MB.TOTAL_ENERGY][MB.TYPE]))
return 0
def try_read_float_from_config(self, name, el):
# self.logger.debug("try_read_float_from_config name:{} el:{}".format(name, str(el)))
if not el[MB.ENABLED]:
self.logger.debug("Modbus element {} not enabled".format(name))
return 0
if el[MB.TYPE] != MB.TYPE_FLOAT:
self.logger.warn(
"Type {} for modbus element {} not supported (must be {})".
format(el[MB.TYPE], name, MB.TYPE_FLOAT))
return 0
return round(
self.try_read_float(value_desc=name,
registeraddress=el[MB.REGISTER_ADDRESS],
functioncode=el[MB.FUNCTION_CODE],
number_of_registers=el[MB.NUMBER_OF_REGISTERS],
byteorder=el[MB.BYTE_ORDER]), 1)
def getProdMeasurementValue(self):
L1_P = self.try_read_float_from_config(
'l1_p', self.modbusConfig[MB.L1][MB.POWER])
L1_V = self.try_read_float_from_config(
'l1_v', self.modbusConfig[MB.L1][MB.VOLT])
L1_A = self.try_read_float_from_config(
'l1_a', self.modbusConfig[MB.L1][MB.AMP])
L1_kWh = self.try_read_float_from_config(
'l1_kWh', self.modbusConfig[MB.L1][MB.ENERGY])
L2_P = self.try_read_float_from_config(
'l2_p', self.modbusConfig[MB.L2][MB.POWER])
L2_V = self.try_read_float_from_config(
'l2_v', self.modbusConfig[MB.L2][MB.VOLT])
L2_A = self.try_read_float_from_config(
'l2_a', self.modbusConfig[MB.L2][MB.AMP])
L2_kWh = self.try_read_float_from_config(
'l2_kWh', self.modbusConfig[MB.L2][MB.ENERGY])
L3_P = self.try_read_float_from_config(
'l3_p', self.modbusConfig[MB.L3][MB.POWER])
L3_V = self.try_read_float_from_config(
'l3_v', self.modbusConfig[MB.L3][MB.VOLT])
L3_A = self.try_read_float_from_config(
'l3_a', self.modbusConfig[MB.L3][MB.AMP])
L3_kWh = self.try_read_float_from_config(
'l3_kWh', self.modbusConfig[MB.L3][MB.ENERGY])
kWh = self.try_read_float_from_config(
'kWh', self.modbusConfig[MB.TOTAL_ENERGY])
Hz = self.try_read_float_from_config('hz', self.modbusConfig[MB.FREQ])
return {
"energy_device_id": self.energy_device_id,
"kwh_l1": L1_kWh,
"kwh_l2": L2_kWh,
"kwh_l3": L3_kWh,
"a_l1": L1_A,
"a_l2": L2_A,
"a_l3": L3_A,
"v_l1": L1_V,
"v_l2": L2_V,
"v_l3": L3_V,
"p_l1": L1_P,
"p_l2": L2_P,
"p_l3": L3_P,
"kw_total": kWh,
"hz": Hz
}
"""
minimalmodbus.read_float raises:
TypeError, ValueError if functioncode is unknown, number_of_registers is out of bounds
ModbusException
NoResponseError("No communication with the instrument (no answer)")
serial.SerialException (inherited from IOError)
"""
def try_read_float(self,
value_desc,
registeraddress,
functioncode,
number_of_registers,
byteorder,
default=0):
value = default
maxRetries = 3
tries = 1
# Used by MeasureElectricityUsageThread and ChargerHandlerThread
while True:
try:
with self.threadLock:
value = self.instrument.read_float(registeraddress,
functioncode,
number_of_registers,
byteorder)
# Yield if we can, allow other time constraint threads to run
if self.appSocketIO is not None:
self.appSocketIO.sleep(0.01)
return value
except (ModbusException, NoResponseError, SerialException) as e:
# Recoverable IO errors, try again
self.logger.debug(
"Could not read value {} due to potential recoverable exception {}"
.format(value_desc, e))
except (TypeError, ValueError, Exception) as e:
# Catch all, won't recover
self.logger.warning(
"Failed to read {} from modbus due to exception {}. Using {}"
.format(value_desc, e, value))
return value
if tries >= maxRetries:
# No more retries, fail now
self.logger.warning(
"Failed to read {} from modbus after trying {} times. Using {}"
.format(value_desc, tries, value))
return value
tries += 1
# Wait before retry
if self.appSocketIO is not None:
self.appSocketIO.sleep(0.05)
self.logger.debug(
"Trying again ({}) to read modbus for {}...".format(
(tries), value_desc))
#!/usr/bin/env python
import sys
from minimalmodbus import Instrument
if __name__ == "__main__":
if len(sys.argv) < 3:
print 'Usage: %s [COM] [SLAVE_ADDRESS]' % sys.argv[0]
exit(1)
port = sys.argv[1]
slave_address = int(sys.argv[2])
inst = Instrument(port, slave_address)
inst.serial.baudrate = 57600
inst.serial.timeout = 1
# inst.debug = True
# print inst
# Read both registers from slave.
response = inst.read_registers(0x0000, 1)
print 'IR inputs: {:02X}'.format(response[0])
def read_regs(mst: modbus.Instrument, start: int, count: int):
return mst.read_registers(start, count)
def write_regs(mst: modbus.Instrument, start: int, data: list):
mst.write_registers(start, data)
import signal
import time
from minimalmodbus import Instrument
if len(sys.argv) < 3:
print 'Usage: {} [COM] [SLAVE] <baudrate=57600>'.format(sys.argv[0])
exit(1)
port = sys.argv[1]
slave = int(sys.argv[2])
try:
baudrate = int(sys.argv[3])
except Exception:
baudrate = 57600
instrument = Instrument(port, slave)
instrument.serial.baudrate = baudrate
instrument.serial.timeout = 1
def signal_handler(signal, frame):
print('Turning all LEDs off.')
instrument.write_registers(0x1000, [0x0000] * NEOPIXEL_SIZE)
sys.exit(0)
signal.signal(signal.SIGINT, signal_handler)
led = [[0, 0, 0] for x in xrange(NEOPIXEL_SIZE)]
j = 1
k = 1
print 'Rainbow.'
while True:
class RCUModbusAdapter:
"""
RCU MODBUS interface
This is the python class object for Xnergy RCU ROS Driver MODBUS RTU adapter class.
RCUModbus Interface python class object require to input serialport to initiate the class object
RCUModbusInterface class object generally provide three function:
a) Trigger RCU unit to charge through MODBUS RTU
b) Trigger RCU unit to discharge through MODBUS RTU
c) Trigger RCU unit to update status and capture the information into RCUModbusInterface object variables
"""
def __init__(self, port="/dev/ttyUSB0", slave_addr=16, baudrate=9600):
""" Initialize RCU modbus rtu """
self.is_connected = True
self.firmware_version_number = -1
self.runtime_voltage_setting = -1
self.runtime_current_setting = -1
self.charge_status = -1
self.charge_status_message = 'None'
self.voltage_conversion = -1
self.current_conversion = -1
self.rcu_lock = Lock()
self._baudrate = baudrate
self._slave_addr = slave_addr
self._port = port
self.errors = []
self._previous_shadow_error_high = 0
self._previous_shadow_error_low = 0
def connect(self):
try:
if(self.is_connected):
self._instrument.close()
self._instrument = Instrument(
port=self._port, mode=MODE_RTU, slaveaddress=self._slave_addr)
self._instrument.serial.baudrate = self._baudrate
self._instrument.serial.timeout = 1
self._instrument.mode = MODE_RTU
# RCU Hardware Setting
# Read RCU Hardware Setting
# firmware version information
firmware_version_number_reg = self._instrument.read_registers(registeraddress=_MODBUS_ADDRESS_FIRMWARE_VERSION_NUMBER, number_of_registers=1,
functioncode=_MODBUS_READ_INPUT_REGISTERS)
self.firmware_version_number = firmware_version_number_reg[0]
# runtime voltage setting information
runtime_voltage_setting_reg = self._instrument.read_registers(registeraddress=_MODBUS_ADDRESS_RUNTIME_VOLTAGE_SETTING, number_of_registers=1,
functioncode=_MODBUS_READ_HOLDING_REGISTERS)
self.runtime_voltage_setting = float(
runtime_voltage_setting_reg[0])/128
# runtime currnet setting information
runtime_current_setting_reg = self._instrument.read_registers(registeraddress=_MODBUS_ADDRESS_RUNTIME_CURRENT_SETTING, number_of_registers=1,
functioncode=_MODBUS_READ_HOLDING_REGISTERS)
self.runtime_current_setting = float(
runtime_current_setting_reg[0])/128
# Set voltage conversion
if self.runtime_voltage_setting > 48.0:
self.voltage_conversion = 0.02229
else:
self.voltage_conversion = 0.01155
if self.runtime_voltage_setting > 48.0:
self.current_conversion = 0.02014
else:
self.current_conversion = 0.04028
return True
except:
self.is_connected = False
return False
# self._instrument.serial.timeout = 0.4
def enable_charge(self):
""" Enable RCU to charge """
return self.write_bit(_MODBUS_ADDRESS_ENABLE_CHARGING, 1)
def disable_charge(self):
""" Disable RCU to charge """
return self.write_bit(_MODBUS_ADDRESS_ENABLE_CHARGING, 0)
def write_bit(self, register_address, input_value):
""" Sending command to RCU unit with threading lock to prevent parallel access to interface """
self.rcu_lock.acquire()
result = False
try:
self._instrument.write_bit(
registeraddress=register_address, value=input_value)
result = True
except serial.serialutil.SerialException as e:
rospy.logwarn(
"Serial exception when writing into a register. %s", str(e))
except (minimalmodbus.NoResponseError, minimalmodbus.InvalidResponseError) as e:
rospy.logwarn("%s.", str(e))
self.rcu_lock.release()
return result
def reset_errors(self):
self._previous_shadow_error_low = 0
self._previous_shadow_error_high = 0
def get_rcu_status(self):
"""
Get charging and hardware information from RCU unit
and store the information to RCUModbusInterface object variable
"""
self.rcu_lock.acquire()
# charging status information
try:
data = self._instrument.read_registers(registeraddress=0, number_of_registers=_MODBUS_NUM_REGISTERS,
functioncode=_MODBUS_READ_INPUT_REGISTERS)
except serial.serialutil.SerialException as e:
rospy.logwarn("Could not read holding register. %s", str(e))
self.charge_status = ChargerState.RCU_NOT_CONNECTED
self.charge_status_message = translate_charge_status(
self.charge_status)
self.rcu_lock.release()
return
except (minimalmodbus.NoResponseError, minimalmodbus.InvalidResponseError) as e:
rospy.logdebug("Invalid Modbus response.")
self.charge_status = ChargerState.RCU_NOT_CONNECTED
self.charge_status_message = translate_charge_status(
self.charge_status)
self.rcu_lock.release()
return
except:
rospy.logwarn("Could not read holding register.")
self.charge_status = ChargerState.RCU_NOT_CONNECTED
self.charge_status_message = translate_charge_status(
self.charge_status)
self.rcu_lock.release()
return
charge_status = data[_MODBUS_ADDRESS_CHARGE_STATUS]
self.charge_status = charge_status
self.charge_status_message = translate_charge_status(charge_status)
# rcu device id information
self.rcu_device_id = data[_MODBUS_ADDRESS_RCU_DEVICE_ID]
# RCU real time error
self.errors = []
rcu_error_low = data[_MODBUS_ADDRESS_RCU_ERROR_LOW]
if rcu_error_low > 0:
for error in rcu_error_data_list:
if (rcu_error_low & error):
error_msg = translate_error_code(error, 'low')
self.errors.append(error_msg)
rcu_error_high = data[_MODBUS_ADDRESS_RCU_ERROR_HIGH]
if not rcu_error_high > 0:
for error in rcu_error_data_list:
if (rcu_error_high & error):
error_msg = translate_error_code(error, 'high')
self.errors.append(error_msg)
# Shadow Error
shadow_error_low = data[_MODBUS_ADDRESS_SHADOW_ERROR_LOW]
# append only new shadow errors to error list
new_shadow_error_low = (~self._previous_shadow_error_low ) & shadow_error_low
if new_shadow_error_low > 0:
for error in rcu_error_data_list:
if (new_shadow_error_low & error):
error_msg = translate_error_code(error, 'low')
self.errors.append(error_msg)
self._previous_shadow_error_low = shadow_error_low
shadow_error_high = data[_MODBUS_ADDRESS_SHADOW_ERROR_HIGH]
# append only new shadow errors to error list
new_shadow_error_high = (~self._previous_shadow_error_high ) & shadow_error_high
if new_shadow_error_high > 0:
for error in rcu_error_data_list:
if (new_shadow_error_high & error):
error_msg = translate_error_code(error, 'high')
self.errors.append(error_msg)
self._previous_shadow_error_high = shadow_error_high
# output current information
output_current = data[_MODBUS_ADDRESS_OUTPUT_CURRENT]
self.output_current = float(output_current) * self.current_conversion
# battery voltage information
battery_voltage = data[_MODBUS_ADDRESS_BATTERY_VOLTAGE]
self.battery_voltage = float(battery_voltage) * self.voltage_conversion
# RCU Hardware Status variable
# device temperature information
self.device_temperature = data[_MODBUS_ADDRESS_DEVICE_TEMPERATURE]
# coil temperature information
self.coil_temperature = data[_MODBUS_ADDRESS_COIL_TEMPERATURE]
self.rcu_lock.release()
#!/usr/bin/env python
import sys
import time
from minimalmodbus import Instrument
if __name__ == "__main__":
if len(sys.argv) < 2:
print 'Usage: %s [COM]' % sys.argv[0]
exit(1)
port = sys.argv[1]
inst = Instrument(port, 1)
inst.serial.baudrate = 57600
inst.serial.timeout = 0.1
for i in range(1, 16):
try:
inst.address = i
response = inst.read_registers(0x0001, 1)
except IOError:
pass
else:
print hex(response[0])
fw_version = response[0] & 0x0FFF
hw_version = response[0] >> 12
print 'Slave {}: FW {:03X}, HW {:01X}'.format(
i, fw_version, hw_version)
time.sleep(0.01)
def reconnect(self):
ModbusInstrument.__init__(self, port, 1)
print('reconnected')
class Slave:
def __init__(self, label, slave_id, slave_address, setupsAdr, setupsCount,
variablesAdr, variablesCount, port):
self.label = label
self.id = slave_id
self.port = port
self.slave_address = slave_address
self.setupsAdr = setupsAdr
self.setupsCount = setupsCount
self.variablesAdr = variablesAdr
self.variablesCount = variablesCount
try:
self.instrument = Instrument(self.port, slave_address)
except:
self.status = "ERROR"
traceback.print_exc()
self.status = "NEW"
self.variable_values = []
self.config_values = []
def getConfig(self, adr):
if self.status == "OK":
return self.config_values[adr]
else:
return 0
def getValue(self, adr):
if self.status == "OK":
return self.variable_values[adr - self.variablesAdr]
else:
return 0
def getVariables(self):
try:
self.variable_values = self.instrument.read_registers(
self.variablesAdr, self.variablesCount)
self.status = "OK"
except IOError:
self.status = "ERROR"
traceback.print_exc()
def getConfigs(self):
try:
self.config_values = self.instrument.read_registers(
self.setupsAdr, self.setupsCount)
self.status = "OK"
except IOError:
self.status = "ERROR"
traceback.print_exc()
def setConfigs(self):
try:
#TODO Detener el hilo de actualización de las variables
self.instrument.write_registers(self.setupsAdr, self.config_values)
self.status = "OK"
except IOError:
self.status = "ERROR"
traceback.print_exc()
def run(self):
if self.status != "OK":
self.getConfigs()
self.getVariables()
def simulate(self):
print('Simulating from slave: %s' % self.id)
from random import randint
self.variable_values = [
randint(0, 100) for i in range(self.variablesCount)
]
self.status = "SIMULATE"