def read_settings(self):
for command in self.protocol_config['settings']['commandSequence']:
data = bmscore.getbmsdat(self.serial, bytes.fromhex(command))
reply = {}
for key in self.protocol_config['settings']['registers']:
data = bmscore.getbmsdat(
self.serial,
bytes.fromhex(self.protocol_config['settings']['registers']
[key]['command']))
reply[key] = int(binascii.hexlify(data), 16)
return reply
def getdat(port='/dev/ttyUSB0'):
""" Get data from BMS board"""
ser = bmscore.openbms(port)
command = bytes.fromhex('DD A5 03 00 FF FD 77')
dat = bmscore.getbmsdat(ser, command)
dat = bmscore.getbmsdat(ser, command)
rawi = int.from_bytes(dat[2:4], byteorder='big', signed=True)
rawv = int.from_bytes(dat[0:2], byteorder='big', signed=True)
balance = bin(int.from_bytes(dat[12:14], byteorder='big', signed=True))
state = int.from_bytes(dat[16:18], byteorder='big', signed=True)
fets = bin(int.from_bytes(dat[20:21], byteorder='big', signed=True))
print("V={} I={} bal={} state={} fets={}".format(rawv, rawi, balance,
bin(state), fets))
errors=['Cell Overvoltage','Cell Undervoltage','Battery Overvoltage', \
'Battery Undervoltage','Charge Overtemp','Charge Undertemp', \
'Discharge Overtemp','Discharge Undertemp','Charge Overcurrent' \
'Discharge Overcurrent','Short Circuit','IC Fault','Software MOS lock']
for i in range(state.bit_length()):
if 2**i & state:
print(errors[i])
# line1 = [ 0 for i in range(int(len(dat)))]
# for i in range(0,int(len(dat))):
# print (dat[i*2:i*2+2])
# print (int.from_bytes(dat[i:i+1], byteorder = 'big'))
# line1[i] = int.from_bytes(dat[i:i+1], byteorder = 'big')
print(binascii.hexlify(dat))
# print (line1)
# voltages
command = bytes.fromhex('DD A5 04 00 FF FC 77')
voltages = bmscore.getbmsdat(ser, command)
ser.close
print(binascii.hexlify(voltages))
rawv = [0.0 for i in range(15)]
for i in range(15):
rawv[i] = int.from_bytes(voltages[i * 2:i * 2 + 2],
byteorder='big') / 1000.00
# rawv[i] = rawv[i]+rawv[i-1]
print(rawv)
command = bytes.fromhex('DD A5 05 00 FF FB 77')
dat = bmscore.getbmsdat(ser, command)
# line1 = [ 0 for i in range(int(len(dat)))]
# for i in range(0,int(len(dat))):
# print (dat[i*2:i*2+2])
# print (int.from_bytes(dat[i:i+1], byteorder = 'big'))
# line1[i] = int.from_bytes(dat[i:i+1], byteorder = 'big')
print(binascii.hexlify(dat))
def get_basic_info(self):
data = bmscore.getbmsdat(
self.serial,
bytes.fromhex(self.protocol_config['basicInfo']['command']))
reply = {}
if data is not None:
for key in self.protocol_config['basicInfo'][
'replyDataStringBytes']:
byte_from = self.protocol_config['basicInfo'][
'replyDataStringBytes'][key]['from']
byte_to = self.protocol_config['basicInfo'][
'replyDataStringBytes'][key]['to']
reply[key] = int(binascii.hexlify(data[byte_from:byte_to]), 16)
# reply['overall_current'] = int(binascii.hexlify(data[2:4]), 16)
# reply['residual_capacity'] = int(binascii.hexlify(data[4:6]), 16)
# reply['nominal_capacity'] = int(binascii.hexlify(data[6:8]), 16)
# reply['cycle_times'] = int(binascii.hexlify(data[8:10]), 16)
# reply['rsoc'] = int(binascii.hexlify(data[19:20]), 16)
# reply['battery_serial_number'] = int(binascii.hexlify(data[21:22]), 16)
# reply['ntc_quantity'] = int(binascii.hexlify(data[22:23]), 16)
start_byte = 23
for i in range(0, reply['ntc_quantity']):
reply['ntc_' + str(i) + '_kelvin'] = int(
binascii.hexlify(data[start_byte:start_byte + 2]), 16)
reply['ntc_' + str(i) + '_celsius'] = round(
self.kelvin2celsius(
int(binascii.hexlify(data[start_byte:start_byte + 2]),
16) / 10) * 100) / 100
start_byte = start_byte + 2
else:
return None
return reply
def switchfets(port='/dev/ttyUSB0'):
""" switch charge and discharge fets """
print ('(03)=Both FETs off')
print ('(01)=Discharge FET on, Charge FET off')
print ('(02)=Discharge FET off, Charge FET on')
print ('(00)=Both FETs on')
usercmd = input("Enter numeric option> ")
ser = bmscore.openbms(port)
command = bytes.fromhex('DD A5 03 00 FF FD 77')
print ('command=',binascii.hexlify(command))
data=bmscore.getbmsdat(ser,command)
print ('reply=',binascii.hexlify(data))
command = bytes.fromhex('DD A5 04 00 FF FC 77')
print ('command=',binascii.hexlify(command))
data=bmscore.getbmsdat(ser,command)
print ('reply=',binascii.hexlify(data))
command = bytes.fromhex('DD 5A 00 02 56 78 FF 30 77')
data=bmscore.getbmsdat(ser,command)
print ('reply=',binascii.hexlify(data))
usercmd=b'\xE1\x02\x00'+bytes.fromhex(usercmd)
command = b'\xDD\x5A'+usercmd+bmscore.crccalc(usercmd).to_bytes(2, byteorder='big')+b'\x77'
print (binascii.hexlify(command))
bmscore.getbmsdat(ser,command)
command = bytes.fromhex('DD 5A 01 02 00 00 FF FD 77')
bmscore.getbmsdat(ser,command)
def get_vendor(self):
data = bmscore.getbmsdat(
self.serial,
bytes.fromhex(self.protocol_config['vendor']['command']))
if data is not None:
text = str(binascii.unhexlify(binascii.hexlify(data)))
else:
text = 'Unknown'
return text
def getdat(port='/dev/ttyUSB0'):
""" Get data from BMS board"""
ser = bmscore.openbms(port)
command = bytes.fromhex('DD A5 03 00 FF FD 77')
dat = bmscore.getbmsdat(ser, command)
rawi = int.from_bytes(dat[2:4], byteorder='big', signed=True)
rawv = int.from_bytes(dat[0:2], byteorder='big', signed=True)
balance = int.from_bytes(dat[12:14], byteorder='big', signed=True)
state = int.from_bytes(dat[16:18], byteorder='big', signed=True)
fets = int.from_bytes(dat[20:21], byteorder='big', signed=True)
print("V={} I={} bal={} state={} fets={}".format(rawv, rawi, balance,
state, fets))
# line1 = [ 0 for i in range(int(len(dat)))]
# for i in range(0,int(len(dat))):
# print (dat[i*2:i*2+2])
# print (int.from_bytes(dat[i:i+1], byteorder = 'big'))
# line1[i] = int.from_bytes(dat[i:i+1], byteorder = 'big')
print(binascii.hexlify(dat))
# print (line1)
# voltages
command = bytes.fromhex('DD A5 04 00 FF FC 77')
voltages = bmscore.getbmsdat(ser, command)
ser.close
print(binascii.hexlify(voltages))
rawv = [0.0 for i in range(15)]
for i in range(15):
rawv[i] = int.from_bytes(voltages[i * 2:i * 2 + 2],
byteorder='big') / 1000.00
rawv[i] = rawv[i] + rawv[i - 1]
print(rawv)
command = bytes.fromhex('DD A5 05 00 FF FB 77')
dat = bmscore.getbmsdat(ser, command)
# line1 = [ 0 for i in range(int(len(dat)))]
# for i in range(0,int(len(dat))):
# print (dat[i*2:i*2+2])
# print (int.from_bytes(dat[i:i+1], byteorder = 'big'))
# line1[i] = int.from_bytes(dat[i:i+1], byteorder = 'big')
print(binascii.hexlify(dat))
def getdat(port='/dev/ttyUSB0'):
""" Get data from BMS board"""
ser = bmscore.openbms(port)
command = bytes.fromhex('DD A5 03 00 FF FD 77')
dat = bmscore.getbmsdat(ser,command)
rawi = int.from_bytes(dat[2:4], byteorder = 'big',signed=True)
rawv = int.from_bytes(dat[0:2], byteorder = 'big',signed=True)
balance = int.from_bytes(dat[12:14], byteorder = 'big',signed=True)
state = int.from_bytes(dat[16:18], byteorder = 'big',signed=True)
fets = int.from_bytes(dat[20:21], byteorder = 'big',signed=True)
print ("V={} I={} bal={} state={} fets={}".format(rawv,rawi,balance,state,fets))
# line1 = [ 0 for i in range(int(len(dat)))]
# for i in range(0,int(len(dat))):
# print (dat[i*2:i*2+2])
# print (int.from_bytes(dat[i:i+1], byteorder = 'big'))
# line1[i] = int.from_bytes(dat[i:i+1], byteorder = 'big')
print (binascii.hexlify(dat))
# print (line1)
# voltages
command = bytes.fromhex('DD A5 04 00 FF FC 77')
voltages = bmscore.getbmsdat(ser,command)
ser.close
print (binascii.hexlify(voltages))
rawv = [ 0.0 for i in range(15)]
for i in range(15):
rawv[i] = int.from_bytes(voltages[i*2:i*2+2], byteorder = 'big')/1000.00
rawv[i] = rawv[i]+rawv[i-1]
print (rawv)
command = bytes.fromhex('DD A5 05 00 FF FB 77')
dat = bmscore.getbmsdat(ser,command)
# line1 = [ 0 for i in range(int(len(dat)))]
# for i in range(0,int(len(dat))):
# print (dat[i*2:i*2+2])
# print (int.from_bytes(dat[i:i+1], byteorder = 'big'))
# line1[i] = int.from_bytes(dat[i:i+1], byteorder = 'big')
print (binascii.hexlify(dat))
def get_cells_info(self):
while self.num_cells is None:
self.set_num_cells
time.sleep(1)
data = bmscore.getbmsdat(
self.serial,
bytes.fromhex(self.protocol_config['cellsInfo']['command']))
reply = {}
if data is not None:
start_byte = 0
for i in range(0, self.num_cells):
# print("reading cell: "+str(start_byte)+":"+str(start_byte+2))
reply['cell_' + str(i)] = int(
binascii.hexlify(data[start_byte:start_byte + 2]), 16)
start_byte = start_byte + 2
else:
return None
return reply
def switchfets(port='/dev/ttyUSB0'):
""" switch charge and discharge fets """
print ('(03)=Both FETs off')
print ('(01)=Charge FET on, Discharge FET off')
print ('(02)=Charge FET off, Discharge FET on')
print ('(00)=Both FETs on')
usercmd = input("Enter numeric option> ")
ser = bmscore.openbms(port)
command = bytes.fromhex('DD A5 03 00 FF FD 77')
print ('command=',binascii.hexlify(command))
data=bmscore.getbmsdat(ser,command)
print ('reply=',binascii.hexlify(data))
command = bytes.fromhex('DD A5 04 00 FF FC 77')
print ('command=',binascii.hexlify(command))
data=bmscore.getbmsdat(ser,command)
print ('reply=',binascii.hexlify(data))
command = bytes.fromhex('DD 5A 00 02 56 78 FF 30 77')
getbmsdat(ser,command)
usercmd=b'\xE1\x02\x00'+bytes.fromhex(usercmd)
command = b'\xDD\x5A'+usercmd+bmscore.crccalc(usercmd).to_bytes(2, byteorder='big')+b'\x77'
print (binascii.hexlify(command))
bmscore.getbmsdat(ser,command)
command = bytes.fromhex('DD 5A 01 02 00 00 FF FD 77')
bmscore.getbmsdat(ser,command)
def getdat(port='/dev/ttyUSB0'):
""" Get data from BMS board"""
ser = bmscore.openbms(port)
# status
command = bytes.fromhex('DD A5 03 00 FF FD 77')
dat = bmscore.getbmsdat(ser,command)
rawi = int.from_bytes(dat[2:4], byteorder = 'big',signed=True)
rawv = int.from_bytes(dat[0:2], byteorder = 'big',signed=True)
balance = bin(int.from_bytes(dat[12:14], byteorder = 'big',signed=True))
state = int.from_bytes(dat[16:18], byteorder = 'big',signed=True)
fets = bin(int.from_bytes(dat[20:21], byteorder = 'big',signed=True))
print ("V={} I={} bal={} state={} fets={}".format(rawv,rawi,balance,bin(state),fets))
errors=['Cell Overvoltage','Cell Undervoltage','Battery Overvoltage', \
'Battery Undervoltage','Charge Overtemp','Charge Undertemp', \
'Discharge Overtemp','Discharge Undertemp','Charge Overcurrent' \
'Discharge Overcurrent','Short Circuit','IC Fault','Software MOS lock']
for i in range(state.bit_length()):
if 2**i & state:
print (errors[i])
# voltages
command = bytes.fromhex('DD A5 04 00 FF FC 77')
voltages = bmscore.getbmsdat(ser,command)
ser.close
#print (binascii.hexlify(voltages))
rawv = [ 0 for i in range(19)]
rawb = [ 0 for i in range(15)]
rawt = {}
total = 0
mini=0
maxi=0
for i in range(15):
rawv[i] = int.from_bytes(voltages[i*2:i*2+2], byteorder = 'big')#/1000.00
#Suma
total += rawv[i]
#Serie minima
if (mini==0):
mini=rawv[i]
else:
if (rawv[i] < mini):
mini=rawv[i]
#Serie maxima
if (rawv[i] > maxi):
maxi=rawv[i]
if (i == 0):
rawb[i] = int.from_bytes(dat[12:14], byteorder = 'big',signed=True) & 1
else:
rawb[i] = int.from_bytes(dat[12:14], byteorder = 'big',signed=True) >> i & 1
# temperaturas
for i in range(int.from_bytes(dat[22:23],'big')): # read temperatures
rawt['T{0:0=1}'.format(i+1)]=(int.from_bytes(dat[23+i*2:i*2+25],'big')-2731)/10
rawv[15] = total;
rawv[16] = mini;
rawv[17] = maxi;
rawv[18] = maxi - mini;
print (rawv)
print (rawb)
print (rawt)
emoncms(rawv,rawb,rawt)