def readModbusData():
logging.basicConfig()
log = logging.getLogger()
log.setLevel(logging.DEBUG)
client = ModbusClient(method='rtu',
port='/dev/ttyUSB0',
baudrate=38400,
timeout=1,
parity='N',
stopbits=2)
print(client.connect())
client.debug_enabled()
log.debug("Read holding registers")
response = client.read_holding_registers(0, 1, unit=0x1B)
response1 = client.read_holding_registers(0, 1, unit=0x1B)
print(response) #This returns the response for whole length of registers
print(response1)
# print(response.getRegister(0)); #This returns value of only one
client.close()
obj = json.loads(data)
for met in range(len(obj["meters"])):
client = ModbusClient(method = obj["meters"][met]["method"], port = obj["meters"][met]['portSlave'], timeout=1 , stopbits=2, bytesize=8, parity='N', baudrate=38400)
if client.connect() == True:
print("Connected meter {} with address: {}".format(obj["meters"][met]["nameMeter"], obj["meters"][met]["slaveID"]))
else:
print("Failed connection")
exit()
print("_______________________________________________________")
print("_______________________________________________________")
client.debug_enabled()
#enable hardware handshake IMPORTANT
#client.socket.rtscts=True
#print(result.raw())
for i in range(len(obj["meters"][met]["registers"])):
print("Register Adrress: {}".format(obj["meters"][met]["registers"][i]["address"]))
result = client.read_input_registers(obj["meters"][met]["registers"][i]["address"], 2, unit = obj["meters"][met]["slaveID"])
#print(result) #response regs
#print(result.registers) #print values of register address
reg_list = result.registers #list: value of registers
#PROGRAM: DECODING
