class ModbusClientRS: def __init__(self): self.client = ModbusClient() def writeRegister(self, address, value): if self.client.is_open(): return self.client.write_single_register(address, value) return None def readRegister(self, address, value): if self.client.is_open(): self.client.read_holding_registers(address, value) def connect(self, host, port): # self.client.debug(True) self.client.host(SERVER_HOST) self.client.port(SERVER_PORT) if not self.client.is_open(): if not self.client.open(): print("unable to connect to " + SERVER_HOST + ":" + str(SERVER_PORT)) def is_open(self): return self.client.is_open() def disconnect(self): return self.client.close()
class Modbus: def __init__(self, host, port, unit): self.client = ModbusClient(host, port, unit, timeout=3) def __enter__(self): self.client.open() return self def __exit__(self, exc_type, exc_val, exc_tb): self.client.close() def toFloat(self, ushorts): bs = struct.pack('H', ushorts[0]) + struct.pack('H', ushorts[1]) return struct.unpack('f', bs) def openConnect(self): try: if not self.isOpen: self.client.open() except: self.closeConnect() def closeConnect(self): self.client.close() @property def isOpen(self): return self.client.is_open() def getValue(self, addr): return self.toFloat(self.client.read_holding_registers(addr, 2))[0] def getValues(self, tags): return [(tag, self.getValue(tag)) for tag in tags]
def read_valid_registers(target_ip, port, reg): result = False print(f'\n=====Polling remote server for {reg}:=====') for i in range(start_reg, end_reg): client = ModbusClient(host=target_ip, port=port, auto_open=True, auto_close=True, timeout=10) if reg == "hold": data = client.read_holding_registers(i, 1) if reg == "input": data = client.read_input_registers(i, 1) if reg == "discrete": data = client.read_discrete_inputs(i, 1) if reg == "coil": data = client.read_coils(i, 1) if data: result = True print(f'\nValid Registers {reg} detected at {i} with value {data}') client.close() print('/', end='') sleep(0.1) # return valid_list,data_list,permission_list if result != True: print(f'\n No Valid Registers detected in specified range')
def modbus_com(SERVER_HOST, SERVER_PORT, function_code, start_register, amount_of_registers): c = ModbusClient() c.host(SERVER_HOST) c.port(SERVER_PORT) cnt = 0 while True: # open or reconnect TCP to server if not c.is_open(): if not c.open(): print("unable to connect to " + SERVER_HOST + ":" + str(SERVER_PORT)) # if open() is ok, read register (modbus function 0x03) if c.is_open(): if function_code == "3": # Read the amount_of_registers from start_register regs = c.read_holding_registers(int(start_register), int(amount_of_registers)) # if success display registers if regs: print("reg address" + str(start_register) + "to" + str( int(start_register) + int(amount_of_registers) - 1) + ":" + str(regs)) elif function_code == "16": #Future support pass cnt += 1 if cnt >= 2: print("クライアント通信終了") c.close() break # sleep 1s before next polling time.sleep(1)
def read_all_tags(self): try: c = ModbusClient(host="192.168.2.11", port=502, debug=False) c.open() for name, tag in self.tag_db.items(): mb0 = tag['modbus_start'] -1 mb1 = tag['modbus_stop'] -1 size = 1+mb1-mb0 #print(name, mb0, mb1, size) #print(tag) if 0 <= mb0 < 100000: val = c.read_coils(mb0)[0] elif 100000 <= mb0 < 200000: val = c.read_discrete_inputs(mb0-100000)[0] elif 300000 <= mb0 < 400000: val = c.read_input_registers(mb0-300000, size) if size == 1: val = val[0] elif size == 2: val = utils.word_list_to_long(val, big_endian=False)[0] elif 400000 <= mb0 < 500000: val = c.read_holding_registers(mb0-400000, size ) if size == 1: val = val[0] elif size == 2: val = utils.word_list_to_long(val, big_endian=False)[0] if tag['dtype'] == 'float32': val = utils.decode_ieee(val) #print(name, val) self.settings[name] = val except Exception as err: print("Error in read_all_tags", err) c.close()
def Collect_Modbus(Collect_Array): #todo: add try try: c = ModbusClient(host=Modbus_Device_IP, unit_id=Modbus_Device_ID, port=Modbus_Device_Port, debug=False) c.open() for x in range(len(Collect_Array)): collected_array = [0] collected_array.pop() collected = c.read_input_registers(Collect_Array[x][0], Collect_Array[x][1]) collected_merged = struct.pack('>HH', collected[0], collected[1]) collected_array.append(struct.unpack('>i', collected_merged)[0]) #store_url format : (sensor, description, value, metric, timestamp) if collected_array[0] < 100000 and collected_array[0] > -100000: store_url("SMA", Collect_Array[x][3], collected_array, Collect_Array[x][2], datetime.now()) print("SMA", Collect_Array[x][3], collected_array[0], Collect_Array[x][2], datetime.now()) else: store_url("SMA", Collect_Array[x][3], 0, Collect_Array[x][2], datetime.now()) print("unrealistic value detected set value to 0") c.close() except: print("Could not read from modbus")
def modbus_request(self, progress_callback): c = ModbusClient(host="localhost", auto_open=False) connection_ok = c.open() if connection_ok: try: self.holding_registers = c.read_holding_registers(0, 3) print(self.holding_registers) regs = [ int(10 * self.tcurrinsp.value()), int(10 * self.tcurrexp.value()), int(10 * self.currpress.value()) ] c.write_multiple_registers(3, regs) print(regs) c.close() except: print("modbus exception") pass else: print("other") pass finally: #print("passed") pass else: print("could not open") pass
def VICTRON_modbus(Modbus_Device_ID, Modbus_read_address, factor): debug = debugVICTRON Modbus_Device_IP = "192.168.1.190" Modbus_Device_Port = 502 value = 0.0 collected = [0] collected_array = [0] collected_array.pop() if debug: print("Victron Modbus collecting from ID", Modbus_Device_ID, "register", Modbus_read_address) try: c = ModbusClient(host=Modbus_Device_IP, unit_id=Modbus_Device_ID, port=Modbus_Device_Port, debug=debug) c.open() collected = c.read_input_registers(Modbus_read_address, 1) if debug: print("VICTRON collected from modbus=", collected) value = collected[0] value = value / factor if debug: print("Modbus IP=", Modbus_Device_IP, "Modbus ID=", Modbus_Device_ID, "Modbus address=", Modbus_read_address, "Value=", value) c.close() except: print("could not read from SMA Modbus IP=", Modbus_Device_IP, "Modbus ID=", Modbus_Device_ID, "Modbus address=", Modbus_read_address) return value
def routineLoop(): global ac, dados, off for i in ip: #Entra na lista de ip's for x in add[ip.index(i)]: #entra na lista de endereços ac = ModbusClient(host=i, auto_open=True, unit_id=x) readTemp = ac.read_input_registers( 0) #Leitura da temperatura lida pelo ac dados = ac.read_holding_registers(2, 26) if bool(readTemp ) == False: #Se o valor for falso pula para o próximo ac break if dados[0] == 0: off = 1 else: off = 0 resposta = connect( off, int(readTemp[0]), str(i), str(x), str(dados[1]), str(dados[3]), str(dados[2])) #Envia os dados para API e recebe a resposta resposta = json.loads(resposta) print('Recebido: ' + str(resposta)) decisao = decision(dados, resposta) d = datetime.now() print(decisao + " | " + str(d.hour) + ":" + str(d.minute) + ":" + str(d.second)) ac.close()
def __init__(self, address, port): c = ModbusClient() c.host(address) c.port(port) c.unit_id(1) c.open() data = c.read_holding_registers(130, 12) self.data=data c.close() if data: self.LowT1Start = format(data[0], 'x') self.LowT1Stop = format(data[1], 'x') self.LowT2Start = format(data[2], 'x') self.LowT2Stop = format(data[3], 'x') self.NormT1Start = format(data[4], 'x') self.NormT1Stop = format(data[5], 'x') self.NormT2Start = format(data[6], 'x') self.NormT2Stop = format(data[7], 'x') self.PeakT1Start = format(data[8], 'x') self.PeakT1Stop = format(data[9], 'x') self.PeakT2Start = format(data[10], 'x') self.PeakT2Stop = format(data[11], 'x') else: print("Read Volt And Amper ERROR")
class kulucka: def __init__(self): self.bekle = 1 self.host = "212.154.74.164" self.port = 502 self.timeout = 2000 self.c = None self.sonuc = {} def baglan(self): self.c = ModbusClient(host=self.host, unit_id=1, timeout=self.timeout, auto_open=True, auto_close=True, port=self.port) def main(self): self.c.open() regs = self.c.read_holding_registers(12288, 6) if regs: self.parse(regs) else: print("read error") self.c.close() def parse(self, regs): k = 1 for i in range(0, len(regs), 2): sicaklik = regs[i] / 10 nem = regs[i + 1] / 10 self.sonuc["kulucka" + str(k)] = {"sicaklik": sicaklik, "nem": nem} k += 1 print()
def VICTRON_modbus_power(): debug = debugVICTRON Modbus_Device_IP = "192.168.1.190" Modbus_Device_ID = "100" Modbus_Device_Port = 502 modbus_read_address = 842 debug = False value = 0.0 try: c = ModbusClient(host=Modbus_Device_IP, unit_id=Modbus_Device_ID, port=Modbus_Device_Port, debug=debug) c.open() collected = c.read_input_registers(modbus_read_address, 1) value = utils.get_2comp(collected[0], 16) #utils.get_list_2comp to convert a list c.close() if debug: print("Modbus IP=", Modbus_Device_IP, "Modbus ID=", Modbus_Device_ID, "Modbus address=", modbus_read_address, "Value=", value, "Collected=", collected) except: print("Could not read power from Victron modbus") return value
class TestClientServer(unittest.TestCase): def setUp(self): # modbus server self.server = ModbusServer(port=5020, no_block=True) self.server.start() # modbus client self.client = ModbusClient(port=5020) self.client.open() def tearDown(self): self.client.close() def test_read_and_write(self): # word space self.assertEqual(self.client.read_holding_registers(0), [0], 'Default value is 0 when server start') self.assertEqual(self.client.read_input_registers(0), [0], 'Default value is 0 when server start') # single read/write self.assertEqual(self.client.write_single_register(0, 0xffff), True) self.assertEqual(self.client.read_input_registers(0), [0xffff]) # multi-write at max size words_l = [randint(0, 0xffff)] * 0x7b self.assertEqual(self.client.write_multiple_registers(0, words_l), True) self.assertEqual(self.client.read_holding_registers(0, len(words_l)), words_l) self.assertEqual(self.client.read_input_registers(0, len(words_l)), words_l) # write over sized words_l = [randint(0, 0xffff)] * 0x7c self.assertEqual(self.client.write_multiple_registers(0, words_l), None) # bit space self.assertEqual(self.client.read_coils(0), [False], 'Default value is False when server start') self.assertEqual(self.client.read_discrete_inputs(0), [False], 'Default value is False when server start') # single read/write self.assertEqual(self.client.write_single_coil(0, True), True) self.assertEqual(self.client.read_coils(0), [True]) self.assertEqual(self.client.read_discrete_inputs(0), [True]) # multi-write at min size bits_l = [getrandbits(1)] * 0x1 self.assertEqual(self.client.write_multiple_coils(0, bits_l), True) self.assertEqual(self.client.read_coils(0, len(bits_l)), bits_l) self.assertEqual(self.client.read_discrete_inputs(0, len(bits_l)), bits_l) # multi-write at max size bits_l = [getrandbits(1)] * 0x7b0 self.assertEqual(self.client.write_multiple_coils(0, bits_l), True) self.assertEqual(self.client.read_coils(0, len(bits_l)), bits_l) self.assertEqual(self.client.read_discrete_inputs(0, len(bits_l)), bits_l) # multi-write over sized bits_l = [getrandbits(1)] * 0x7b1 self.assertEqual(self.client.write_multiple_coils(0, bits_l), None)
class com(object): """This class implements the modbusTCP connection functions """ def __init__(self): ''' Constructor for this class. ''' self._port = 0 def __del__(self): ''' Destructor for this class. ''' if self._port !=0: self.close() def open (self,SERVER_HOST = "192.168.0.210",SERVER_PORT = 502,SERVER_UNIT = 201): """Open modbus connection to the ComBox Args: SERVER_HOST: network address of the ComBox. Default='192.168.0.210' SERVER_PORT: modbus TCP port. Default='502' SERVER_UNIT: modbus address of the ComBox. Default='201' Returns: Boolean value True or False """ self._port = ModbusClient(SERVER_HOST, SERVER_PORT, SERVER_UNIT) if not self._port.is_open(): if not self._port.open(): print("unable to connect to " + SERVER_HOST + ":" + str(SERVER_PORT)) return self._port.is_open() def close(self): """Closes the modbusTCP connection Returns: Boolean value True or False """ self._port.close() return not self._port.is_open() def is_connected(self): """This function checks if the connection to the Schneider Conext ComBox is established and if it responds to readout commands. It requests the firmware version of the ComBox and checks for an received bitstream. Returns: Boolean value True or False return """ bitstream = self._port.read_holding_registers(0x001E, 7) # 0x001E Firmware Version str20 r if bitstream: return True else: return False
def Read(self): self.Reset() self.Error = True try: # Initializing connection to Eaton power meter via TCP c = ModbusClient() c.host(ip) c.port(port) c.open() #All time-stamp values timeMark = datetime.datetime.now() self.Error = False self.ErrorType = '' self.year = timeMark.year self.month = timeMark.month self.day = timeMark.day self.hour = timeMark.hour self.minute = timeMark.minute self.second = timeMark.second #All meter values self.Vab = convert(c, vabaddr) self.Vbc = convert(c, vbcaddr) self.Vca = convert(c, vcaaddr) self.Van = convert(c, vanaddr) self.Vbn = convert(c, vbnaddr) self.Vcn = convert(c, vcnaddr) self.phVab = convert(c, phvabaddr) self.phVbc = convert(c, phvbcaddr) self.phVca = convert(c, phvcaaddr) self.Ia = convert(c, iaaddr) self.Ib = convert(c, ibaddr) self.Ic = convert(c, icaddr) self.In = convert(c, inaddr) self.phIa = convert(c, phiaaddr) self.phIb = convert(c, phibaddr) self.phIc = convert(c, phicaddr) self.WphA = convert(c, wphaaddr) self.WphB = convert(c, wphbaddr) self.WphC = convert(c, wphcaddr) self.VARphA = convert(c, varaaddr) self.VARphB = convert(c, varbaddr) self.VARphC = convert(c, varcaddr) self.VanTHD = convert(c, vanaddr) self.VbnTHD = convert(c, vbnaddr) self.VcnTHD = convert(c, vcnaddr) self.IaTHD = convert(c, iathdaddr) self.IbTHD = convert(c, ibthdaddr) self.IcTHD = convert(c, icthdaddr) c.close() except: try: c.close() except: pass self.Error = True self.ErrorType = 'Connection Error'
def readPDTemp(num): c = ModbusClient(host='192.168.0.4', port=502, unit_id=4, auto_open=True, auto_close=True) if c.is_open(): registerPD = None registerTemp = None else: c.open() registerPD = None registerTemp = None if num == 4: registerPD = c.read_holding_registers(reg_addr=450, reg_nb=1) registerTemp = c.read_holding_registers(reg_addr=418, reg_nb=3) elif num == 5: registerPD = c.read_holding_registers(reg_addr=451, reg_nb=1) registerTemp = c.read_holding_registers(reg_addr=421, reg_nb=3) elif num == 6: registerPD = c.read_holding_registers(reg_addr=452, reg_nb=1) registerTemp = c.read_holding_registers(reg_addr=424, reg_nb=3) else: print("system error!") param = num, round(time.time()), registerTemp[0] / 10, registerTemp[ 1] / 10, registerTemp[2] / 10, registerPD[0] if registerPD: if registerTemp: try: with conn.cursor() as cursor: cursor.execute(qry, param) conn.commit() except TypeError: print('connection error with Db. Check it.') pass else: print("reboot CAM-4 to get temperature") else: print("reboot CAM-4 to get PD") c.close() result = { 'i': param[0], 'time': param[1], 'Temp_R': param[2], 'Temp_S': param[3], 'Temp_T': param[4], 'PD': param[5] } return result
def write_single_coil_regiser(ip_addr,port,coil_valid_list): write_coil_confirm_list=[] write_coil_confirm_data=[] client=ModbusClient(host=ip_addr,port=port,auto_open=True,auto_close=True,timeout=10) for i in hold_valid_list: data=client.write_single_register(i,43981) # HEX(ABCD) == int(43981) data=client.read_holding_registers(i,1) #print("Regiser: "+str(i)+" => Value: "+str(data)) if data[0]: if 43981==data[0]: write_coil_confirm_list.append(i) write_coil_confirm_data.append(data[0]) client.close() return write_coil_confirm_list,write_coil_confirm_data
def checkConnection(host): # A simple function to check if the Modbus connection is open #...using the pyModbus.ModbusClient.is_open() method. client = ModbusClient() client.host(host) client.open() if client.is_open(): status = True else: status = False client.close() return status
def readValueIP(address, port, addr, reg): c = ModbusIPClient() c.host(address) c.port(int(port)) value = -1 if not c.is_open(): if not c.open(): print("Unable to connect to "+address+":"+str(port)) if c.is_open(): try: value = c.read_holding_registers(int(addr), int(reg)) except Exception as e: raise e finally: c.close() return value[0]
def Collect_Modbus(Device_IP, Device_ID, Device_Port, Collect_Array): c = ModbusClient(host=Device_IP, unit_id=Device_ID, port=Device_Port, debug=False) c.open() collected_array = [0] collected_array.pop() for x in range(len(Collect_Array)): print(x) collected = c.read_input_registers(Collect_Array[x][0], Collect_Array[x][1]) collected_merged = struct.pack('>HH', collected[0], collected[1]) collected_array.append(struct.unpack('>I', collected_merged)[0]) print(collected_array) c.close() return collected_array
class Alicat(Adapter): """Alicat device (e.g. pressure controller) with a Modbus/TCP interface""" def __init__(self, ip_address): super(Alicat, self).__init__(ip_address) self.mb_client = ModbusClient(host=ip_address, timeout=5) def start(self): while True: self.mb_client.open() if self.mb_client.is_open(): break print 'Unable to connect to Alicat device at {}; retrying...'.format( self.ip_address) sleep(1) def stop(self): self.mb_client.close() def read_all(self): if self.a_ins: data = self.mb_client.read_input_registers( self.a_in_range[0], self.a_in_range[1] - self.a_in_range[0] + 1) if not data: raise ConnectionError i0 = self.a_in_range[ 0] # Starting index for looking up values from the data list for d in self.a_ins.values(): if d.length == 2: d.val = data[d.address - i0:d.address - i0 + 2] elif d.length == 1: d.val = data[d.address - i0] def write_all(self): # print 'Write outputs' if self.a_outs: data = [] for d in self.a_outs.values(): if d.length == 2: data += d.raw_array elif d.length == 1: data.append(d.raw_array) self.mb_client.write_multiple_registers(self.a_out_range[0], data)
def importFromGrid(setPoint, SOCDischarge, SOCCharge): log.write('%02d, %02d, %02d, ' % (setPoint, SOCDischarge, SOCCharge)) #log.write(str(setPoint)+', '+str(SOCDischarge)+', '+str(SOCCharge)+', ') hub4 = ModbusClient() hub4.host(farmIP) hub4.port(hub4Port) hub4.unit_id(hub4Id) inverter = ModbusClient() inverter.host(farmIP) inverter.port(invPort) inverter.unit_id(invId) success = False if inverter.open(): r = inverter.read_input_registers(30, 1) soc = r[0] / 10.0 # convert to a percentage log.write('%.1f, inverter, ' % (soc)) print 'SOC=', (soc) else: log.write('failed to open inverter coms') #sort the chargeing if hub4.open(): success = True if soc < SOCCharge: #allow chargeing at max power set point log.write('charging, ') success = success & hub4.write_single_register(2700, setPoint) else: #battery sufficiently charged set charging power to 0 log.write('not charging, ') success = success & hub4.write_single_register(2700, 0) if soc > SOCDischarge: #allow battery to discharge log.write('discharging, ') success = success & hub4.write_single_register(2702, 100) else: #disallow discharge log.write('not discharging, ') success = success & hub4.write_single_register(2702, 0) hub4.close() log.write('hub4, ') else: log.write('hub4 failed to open hub4 comms') return success
class Traffic: beschikbaar = 0 adress = 0 rood_aan = 0b000100 geel_aan = 0b001000 groen_aan = 0b010000 gedoofd = 0b000000 time1 = time.time() def __init__(self): self.stand = 3 self.c = ModbusClient(host="192.168.3.135", port=502, auto_open=True) def getStatus(self): return self.beschikbaar def setStand(self, modus): self.stand = modus def update_light(self): if self.stand == 3: self.c.write_single_register(self.adress, self.rood_aan) elif self.stand == 1: self.c.write_single_register(self.adress, self.geel_aan) elif self.stand == 0: self.c.write_single_register(self.adress, self.groen_aan) elif self.stand == 4: self.c.write_single_register(self.adress, self.gedoofd) def afsluiten(self): while 1: time2 = time.time() - self.time1 if time2 < 3: self.setStand("geel_knipperen") elif 6 > time2 > 3: self.setStand("geel") elif time2 > 6: self.setStand("rood") break def normaal(self): while 1: time2 = time.time() - self.time1 if time2 < 3: self.setStand(2) #rood elif 13 > time2 > 3: self.setStand(0) #groen elif time2 > 13: self.setStand(4) break def checkError(self): if (self.c.close()): beschikbaar = 0 elif (self.c.open()): beschikbaar = 1
def getModbusData(host, port, start_register, end_register): # Returns a list containing the data from each Modbus register between #...and including the start and end register # Depending on the format of any particular value you want, its data may be distributed #...over multiple registers and will require further formatting to be human-readable. # This function only returns the data directly taken from the device's Modbus registers. # Setting up the client #---------------------------------------------------- client = ModbusClient() # Creates a Modbus client opject client.host(host) # Assigns the specified host (IP) address to the client client.port(port) # Assigns the specified port to the client start_register -= 2 # The Modbus registers listed in the Shark100 User's manual end_register -= 2 #...are all offset by 2 from their actual values, #...so we account for that here. num_of_registers = end_register - start_register + 1 # Since the registers are taken as integers, we can take the range between the start and end #...registers and add 1 to get the total number of registers to query. #---------------------------------------------------- # Reading the device's Modbus registers #---------------------------------------------------- client.open() # Opens the connection response = client.read_holding_registers(start_register, num_of_registers) # This function returns a list of values, one for each of the Modbus registers specified. # It works even if some of the registers queried have data stored in different formats, #...so be careful not to automatically treat all data the same. client.close() # Closes the connection #---------------------------------------------------- return response
def modbus_write(self, progress_callback): c = ModbusClient(host="localhost", auto_open=False) connection_ok = c.open() if connection_ok: try: c.write_single_coil(0, self.coil) c.close() except: print("modbus exception") pass else: print("other") pass finally: #print("passed") pass else: print("could not open") pass
def victron_modbus_bat_status(): Modbus_Device_IP="192.168.1.190" Modbus_Device_ID="225" Modbus_Device_Port = 502 modbus_read_address = 266 debug=False try: collected_array = [0] collected_array.pop() c= ModbusClient(host=Modbus_Device_IP,unit_id=Modbus_Device_ID,port=Modbus_Device_Port,debug=debug) c.open() collected = c.read_input_registers(modbus_read_address,1) collected[0] = collected[0]/10 if debug: print("Modbus IP=",Modbus_Device_IP,"Modbus ID=",Modbus_Device_ID,"Modbus address=",modbus_read_address,"Value=",collected[0]) c.close() #store_url("SMA",Collect_Array[x][3],0,Collect_Array[x][2],datetime.now()) #store_url(sensor, description, value, metric, timestamp) store_url("BAT","Battery level",collected[0],"Percent",datetime.now()) except: print("Could not read battery level from Victron modbus")
def monitor_register(target_ip, port, address, delay, reg): while True: client = ModbusClient(host=target_ip, port=port, auto_open=True, auto_close=True, timeout=1) if reg == "Holding": data = client.read_holding_registers(address, 1) if reg == "Input": data = client.read_input_registers(address, 1) if reg == "Discrete": data = client.read_discrete_inputs(address, 1) if reg == "Coil": data = client.read_coils(address, 1) if data: print(f'{reg} register at address {address} has value {data}') #print ('.', end='') client.close() sleep(delay)
def read_valid_registers(ip_addr,port,reg): valid_list=[] data_list=[] permission_list=[] client=ModbusClient(host=ip_addr,port=port,auto_open=True,auto_close=True,timeout=10) for i in tqdm(range(1,500)): if reg == "hold": data=client.read_holding_registers(i,1) if reg == "input": data=client.read_input_registers(i,1) if reg == "discrete": data=client.read_discrete_inputs(i,1) if reg == "coil": data=client.read_coils(i,1) if data: valid_list.append(i) data_list.append(data[0]) permission_list.append("Read") client.close() return valid_list,data_list,permission_list
def victron_modbus_power(): Modbus_Device_IP="192.168.1.190" Modbus_Device_ID="100" Modbus_Device_Port = 502 modbus_read_address = 842 debug=False value = 0.0 try: c= ModbusClient(host=Modbus_Device_IP,unit_id=Modbus_Device_ID,port=Modbus_Device_Port,debug=debug) c.open() collected = c.read_input_registers(modbus_read_address,1) value = utils.get_2comp(collected[0],16)/1000 #utils.get_list_2comp to convert a list c.close() if debug: print("Modbus IP=",Modbus_Device_IP,"Modbus ID=",Modbus_Device_ID,"Modbus address=",modbus_read_address,"Value=",value) #store_url("SMA",Collect_Array[x][3],0,Collect_Array[x][2],datetime.now()) #store_url(sensor, description, value, metric, timestamp) store_url("BAT","power",value,"W",datetime.now()) except: print("Could not read power from Victron modbus") return value
def write_single_coil(target_ip, port, target_reg, value): client = ModbusClient(host=target_ip, port=port, auto_open=True, auto_close=True, timeout=10) result = client.write_single_coil(int(target_reg), int(value)) # Writing to coil client.close() sleep(0.1) client = ModbusClient(host=target_ip, port=port, auto_open=True, auto_close=True, timeout=10) data = client.read_coils(int(target_reg), 1) # Reading the coil state if result == True: print(f'Write to coil {target_reg} successful! \nCurrent value:{data}') else: print('Write operation failed') client.close()
def modbus(ip): dip = "Offline" # Initiate modbus client c = ModbusClient(host=ip, port=502, auto_open=True, timeout=1) # Read Modbus outputs reg = c.read_holding_registers(0, 100) # Close Modbus connection c.close() if reg: # Register 49 (array position 48) is dip switch settings # Convert float response to 8 bit binary string and reverse order (all in one line boiiii) dip = f'{reg[48]:08b}'[::-1] # Convert to array dip = [c for c in dip] return (dip)
def SMA_modbus(Collect_Array): debug = debugSMA #define variables #Modbus_Device_IP = "192.168.1.170" Modbus_Device_IP = "192.168.0.237" Modbus_Device_ID = "3" Modbus_Device_Port = 502 generated = 0.0 collected = [0] collected_array = [0] collected_array.pop() if debug: print("SMA collecting from ID", Modbus_Device_ID, "register", Collect_Array[1]) try: c = ModbusClient(host=Modbus_Device_IP, unit_id=Modbus_Device_ID, port=Modbus_Device_Port, debug=debug) c.open() collected = c.read_input_registers(Collect_Array[0], Collect_Array[1]) c.close() if debug: print("SMA collected from modbus=", collected) collected_merged = struct.pack('>HH', collected[0], collected[1]) collected_array.append(struct.unpack('>i', collected_merged)[0]) if collected_array[0] < 100000 and collected_array[0] > -100000: if debug: print("SMA debug", collected, collected_array) generated = collected_array[0] else: generated = 0.0 if debug: print("unrealistic value detected set value to 0") except: print("Could not read from SMA Modus IP=", Modbus_Device_IP, "DeviceID=", Modbus_Device_ID, "Port=", Modbus_Device_Port, "Register=", Collect_Array) return generated
class Modbus(): def __init__(self, smarthome, gateway_ip, gateway_port=502, gateway_id=1, update_cycle=60): logger.info("Modbus: init plugin") self._sh = smarthome self._gateway_id = int(gateway_id) self._update_cycle = int(update_cycle) self._keylist = {} #self._client = ModbusTcpClient(gateway_ip,port=gateway_port) self._client = ModbusClient(host=gateway_ip, port=gateway_port, auto_open=True, auto_close=True) self._client.unit_id(2) self._client.debug(True) if not self._client.is_open(): if not self._client.open(): logger.error("Modbus: connection to gateway can not be established") else: logger.info("Modbus: connection to gateway established") self._client.close() def run(self): self.alive = True self._sh.scheduler.add('MODBUS', self._update_values, prio=5, cycle=self._update_cycle) def stop(self): self.alive = False self._sh.scheduler.remove('MODBUS') def parse_item(self, item): if 'modbus_gateway_id' in item.conf: gateid = int(item.conf['modbus_gateway_id']) else: gateid = 1 if gateid != self._gateway_id: #logger.debug("Modbus: parse item error (gateway_id is not configured as plugin): {0}".format(item)) return None if 'modbus_cmd' not in item.conf: #logger.debug("Modbus: parse item error (modbus_cmd missing): {0}".format(item)) return None if 'modbus_scaling' not in item.conf: #logger.debug("Modbus: parse item error (modbus_scaling missing): {0}".format(item)) return None if 'modbus_register' in item.conf: logger.debug("Modbus: parse item: {0}".format(item)) register = item.conf['modbus_register'] if not register in self._keylist: self._keylist[register] = {'items': [item], 'logics': []} else: self._keylist[register]['items'].append(item) return None # return self.update_item #else: # return None def parse_logic(self, logic): pass def _update_values(self): for register in self._keylist: for item in self._keylist[register]['items']: if int(item.conf['modbus_cmd']) == 4: reg_list = self._client.read_input_registers(int(item.conf['modbus_register'])-30001, 1) logger.info("Modbus: Plain value: {}".format(str(reg_list[0]))) if reg_list is None: return None if len(reg_list) > 0: phys_value = reg_list[0] / (int(item.conf['modbus_scaling']))# * pow(10, int(item.conf['modbus_decimal'])) logger.info("Modbus: Physical value: {0}".format(phys_value)) item(phys_value, 'MODBUS', ' {0}'.format(phys_value)) elif int(item.conf['modbus_cmd']) == 6: sendvalue = int(item()*int(item.conf['modbus_scaling'])) reg_list = self._client.write_single_register(int(item.conf['modbus_register'])-40001, sendvalue) if not reg_list: logger.info("Modbus: Error writing register") def update_item(self, item, caller=None, source=None, dest=None): if caller != 'MODBUS': logger.info("update item: {0}".format(item.id())) if int(item.conf['modbus_cmd']) == 4: reg_list = self._client.read_input_registers(int(item.conf['modbus_register'])-30001, 1) logger.info("Modbus: Plain value: {}".format(str(reg_list[0]))) if reg_list is None: return None if len(reg_list) > 0: phys_value = reg_list[0] / (int(item.conf['modbus_scaling']))# * pow(10, int(item.conf['modbus_decimal'])) logger.info("Modbus: Physical value: {0}".format(phys_value)) item(phys_value, 'MODBUS', ' {0}'.format(phys_value))
help='RTU port (default is %d)' % DEF_MB_PORT) parser.add_argument('id_str', type=str, help='ID string') parser.add_argument('-a', '--id_addr', type=int, default=DEF_ID_ADDR, help='ID address (default is %d)' % DEF_ID_ADDR) args = parser.parse_args() # init modbus client c = ModbusClient(host=args.ip_rtu, port=args.port_rtu) # open TCP link if not c.open(): print("unable to connect to " + args.ip_rtu + ":" + str(args.port_rtu)) sys.exit(1) # format id list (8 chars max) id_list = [ord(x) for x in args.id_str.ljust(8)][:8] # do modbus write print('write ID %s at @%d' % (id_list, args.id_addr)) regs = c.write_multiple_registers(args.id_addr, id_list) # print status if regs: print('ok') else: print('error') # close TCP link c.close()
choice = input("\nPress \n[r] to Read \n[w] to Write \n[q] to Quit: ") if choice == "r": print("\nChose Read") read_regs() elif choice == "w": print("\nChose Write") write_regs() else: if choice != "q": print("\nInvalid choice") break else: print("Connection Attempt " + str(attempt+1) + " Failed") failedconnection = True if c.is_open and c.close(): print("\nConnection Closed Successfully") time.sleep(0.5) elif failedconnection == True: print("\n Unable To Connect To Device") print("\nProgram Terminated") else: print("\nNot a module") #Write a program that writes values to the PLC every 1s.. sine wave between two boundaries say 0 to 100 #Write a program that reads every 1s.. if value over say 90 generate SNMP trap #Take inputs for sine wave value bounds and and also for value that generates trap
from pyModbusTCP.client import ModbusClient import time if __name__ == "__main__": host = input("\nPlease enter IP address [127.0.0.1]: ") port = input("Please enter port [502]: ") if not host: host = "172.16.143.146" if not port: port = 502 c = ModbusClient(timeout=5) c.host(host) c.port(port) print("\nTrying to connect to " + host + ":" + str(port)) if c.open(): print("Opened") print(c.is_open()) if c.close(): print("Closed") print(c.is_open())
class ClientGUI: def __init__(self): self.lock = RLock() self.calibgui = None self.client = ModbusClient() self.register_values_widgets = {} self.counter = 1 self.find_thread = None self.obj_data = None self.stop_signal = False self.__build_ui() def run_ui(self): self.root.mainloop() def __build_ui(self): # ui hierarchy: # #root # connectframe # connectlabel # connectbutton # snapshotbutton # calibbuton # mainframe # registerframe # reglabel # registergridframe # ... # outputframe # outputlabel # outputtext root = Tk() self.root = root root.wm_title("RemoteSurf Modbus Client") root.protocol("WM_DELETE_WINDOW", self.__delete_window) self.font = tkFont.Font(root = root, family = "Helvetica", size = 12) connectframe = Frame(root) connectbutton = Button(connectframe, text = "Connect", command = self.__connectbutton_click) connectlabel = Label(connectframe, text = "Not connected.") calibbutton = Button(connectframe, text = "Calibrate", command = self.__calibbutton_click) homebutton = Button(connectframe, text = "Home", command = self.__homebutton_click) findbutton = Button(connectframe, text = "Find", command = self.__findbutton_click) mainframe = Frame(root) registerframe = Frame(mainframe) reglabel = Label(registerframe, text = "Set registers") registergridframe = Frame(registerframe) # outputframe = Frame(mainframe) # outputlabel = Label(outputframe, text = "Output") # vscrollbar = Scrollbar(outputframe) # hscrollbar = Scrollbar(outputframe) # outputtext = ThreadSafeConsole(outputframe, root, vscrollbar, font = self.font, wrap = NONE) connectframe.pack(side = TOP, fill = X) connectlabel.pack(side = BOTTOM, anchor = W) homebutton.pack(side = RIGHT) findbutton.pack(side = RIGHT) calibbutton.pack(side = RIGHT) connectbutton.pack(side = RIGHT) mainframe.pack(side = BOTTOM, fill = BOTH, expand = YES) registerframe.pack(side = TOP, expand = YES, anchor = W) # outputframe.pack(side = BOTTOM, fill = BOTH, expand = YES) reglabel.pack(side = TOP, anchor = CENTER) registergridframe.pack(side = BOTTOM, anchor = W) # registerframe.config(bg = "cyan") # mainframe.config(bg = "pink") # registergridframe.config(bg = "red") registergridframe.columnconfigure(0, weight = 1) registergridframe.columnconfigure(1, weight = 1) registergridframe.columnconfigure(2, weight = 1) registergridframe.columnconfigure(3, weight = 1) self.x_pad = 10 registergrid_widgets = [] titles = ["Address", "Label", "Value", ""] col = 0 for title in titles: title_label = Label(registergridframe, text = title) title_label.grid(row = 0, column = col, padx = self.x_pad) registergrid_widgets.append(title_label) col += 1 registers_data = [(500, "x"), (501, "y"), (502, "z"), (503, "A"), (504, "B"), (505, "C"), ] for i in range(len(registers_data)): reg_data = registers_data[i] row = i + 1 self.__add_register(registergridframe, reg_data, row, registergrid_widgets) # hscrollbar.config(orient = HORIZONTAL, command = outputtext.xview) # hscrollbar.pack(side = BOTTOM, fill = X) # outputtext.config(state = DISABLED, yscrollcommand = vscrollbar.set, xscrollcommand = hscrollbar.set) #must change to NORMAL before writing text programmatically # outputtext.pack(side = LEFT, fill = BOTH, expand = YES, padx = x_padding, pady = y_padding) # vscrollbar.config(command = outputtext.yview) # vscrollbar.pack(side = RIGHT, fill = Y) self.connectframe = connectframe self.connectlabel = connectlabel self.connectbutton = connectbutton self.mainframe = mainframe self.registerframe = registerframe self.reglabel = reglabel self.registergridframe = registergridframe self.calibbutton = calibbutton # self.outputframe = outputframe # self.outputlabel = outputlabel # self.vscrollbar = vscrollbar # self.hscrollbar = hscrollbar # self.outputtext = outputtext root.update() w, h = root.winfo_width(), root.winfo_height() root.minsize(w, h) x, y = MAINFRAME_POS root.geometry('%dx%d+%d+%d' % (w, h, x, y)) def __homebutton_click(self): values = { 500: 300, 501: 0, 502: 500, 503: 180, 504: 0, 505: 180, } self.set_values(values, go_to_value = False) def __add_register(self, master, data, row, widget_list): regaddresslabel = Label(master, text=str(data[0])) regaddresslabel.grid(row=row, column=0) reglabellabel = Label(master, text=data[1]) reglabellabel.grid(row=row, column=1) regvalueentry = AccessibleEntry(master, justify = RIGHT) regvalueentry.set("0") regvalueentry.grid(row=row, column=2, padx=self.x_pad) regsetbtn = Button(master, text="Set", command = self.__setbutton_click) regsetbtn.grid(row=row, column=3) widget_list.append(regaddresslabel) widget_list.append(reglabellabel) widget_list.append(regvalueentry) widget_list.append(regsetbtn) self.register_values_widgets[data[0]] = (0, regvalueentry) def __calibbutton_click(self): if not self.calibgui: self.calibgui = CalibGUI(self) def __findbutton_click(self): if self.find_thread is None: self.find_thread = Thread(target=self.__find_object) self.find_thread.start() def __find_object(self): import DataCache as DC from glob import glob from os.path import join import numpy as np from SFMSolver import SFMSolver, find_ext_params import Utils print "FINDING" np.set_printoptions(precision=3, suppress=True) files_dir = "out/2017_3_8__14_51_22/" files = glob(join(files_dir, "*.jpg")) masks = [] for f in files: m = f.replace(".jpg", "_mask.png") masks.append(m) sfm = SFMSolver(files, masks) if self.obj_data is None: imgs, kpts, points, data = sfm.calc_data_from_files_triang_simple() self.obj_data = imgs, kpts, points, data else: imgs, kpts, points, data = self.obj_data arr_calib = DC.getData("out/%s/arrangement_calib.p" % ARRANGEMENT_CALIB_DIR) ttc = arr_calib["ttc"] tor = arr_calib["tor"] if "cam_mtx" in arr_calib: print "camMtx, distcoeffs load" Utils.camMtx = arr_calib["cam_mtx"] Utils.dist_coeffs = arr_calib["dist_coeffs"] if self.stop_signal: self.stop_signal = False return for point in FIND_POINTS: values = { 500: point[0], 501: point[1], 502: point[2], 503: point[3], 504: point[4], 505: point[5], } print "set_values call" self.set_values(values, True) print "set_values return" time.sleep(0.5) CamGrabber.capture_if_no_chessboard = True CamGrabber.capture = True time.sleep(0.5) if self.stop_signal: self.stop_signal = False return find_dir = logger.outputdir files = glob("%s/*.jpg" % find_dir) print files # files_dir = "out/2017_4_5__15_57_20/" # files = glob(join(files_dir, "*.jpg")) files.sort() files = files[-len(FIND_POINTS):] results = [] for f in files: res = find_ext_params(f, imgs, kpts, points, data, tor, ttc) results.append(res) if self.stop_signal: self.stop_signal = False return for i in range(len(results)): print i, results[i] write_log((i, results[i])) result = max(results, key=lambda x: x[2]) write_log(result) values = { 500: int(result[0][0] * 10), 501: int(result[0][1] * 10), 502: int(result[0][2] * 10) + 200, 503: int(result[1][2]), 504: int(result[1][1]), 505: int(result[1][0]), } print "num inl: ", result[2] pprint(values) self.set_values(values, go_to_value=False) self.find_thread = None def __connectbutton_click(self): if self.client.is_open(): self.client.close() else: self.client.host(SERVER_HOST) self.client.port(SERVER_PORT) if self.client.open(): write_log("Connection established") self.refresh_values() self.read_robot_pos() else: write_log("ERROR: Connecting failed") self.__update_gui() def read_robot_pos(self): write_log("Reading robot position:") posdict = {} for i in range(1000, 1006): if self.client.is_open(): with self.lock: real_val_uint = self.client.read_input_registers(i)[0] real_val_holding_uint = self.client.read_holding_registers(i)[0] assert real_val_uint == real_val_holding_uint real_val_int = uintToInt16(real_val_uint) posdict[i] = real_val_int write_log("%d, %d" % (i, real_val_int)) else: write_log("ERROR: Read could not be completed, client not connected.") self.__update_gui() break write_log("Read done.") return posdict def refresh_values(self): for address in self.register_values_widgets: if self.client.is_open(): value, widget = self.register_values_widgets[address] with self.lock: real_val_uint = self.client.read_input_registers(address)[0] real_val_holding_uint = self.client.read_holding_registers(address)[0] assert real_val_uint == real_val_holding_uint real_val_int = uintToInt16(real_val_uint) widget.set(str(real_val_int)) self.register_values_widgets[address] = (real_val_int, widget) else: write_log("ERROR: Read could not be completed, client not connected.") self.__update_gui() break write_log("Refresh done.") return self.register_values_widgets def __update_gui(self): if self.client.is_open(): self.connectlabel.config(text = "Connected to: %s:%d" % (SERVER_HOST, SERVER_PORT)) self.connectbutton.config(text = "Disconnect") else: self.connectbutton.config(text = "Connect") self.connectlabel.config(text = "Not connected.") self.root.update() def __print_memory(self): self.refresh_values() write_log("Memory dump:") write_log("------------") for address in self.register_values_widgets: val, widget = self.register_values_widgets[address] write_log("%d, %d" % (address, val)) write_log("------------") def __setbutton_click(self, wait = False): if not self.client.is_open(): write_log("ERROR: Not connected to client") return # writing message counter retval = self.__write_register(COUNTER_REGISTER_OUT, self.counter) if not retval: self.__update_gui() return # writing registers for address in self.register_values_widgets: value, widget = self.register_values_widgets[address] widgetvalue_int = None try: widgetvalue_int = int(widget.get()) except ValueError: write_log("ERROR: Wrong input format in value entry for address: %d" % address) continue if value == widgetvalue_int: continue retval = self.__write_register(address, widgetvalue_int) if retval: self.register_values_widgets[address] = (widgetvalue_int, widget) else: self.__update_gui() self.refresh_values() # message counter wait if wait: global break_wait while not break_wait: with self.lock: counter = self.client.read_input_registers(COUNTER_REGISTER_IN)[0] if counter == self.counter: break time.sleep(0.1) break_wait = False # counter increment self.counter = (self.counter + 1) % 20 if PRINT_ALL_MEMORY_ON_WRITE: self.__print_memory() self.read_robot_pos() def __write_register(self, address, value): if not (-32768 <= value <= 32767): write_log("ERROR: -32768 <= value <= 32767 is false for address: %d" % address) return False widgetvalue_uint = intToUint16(value) if self.client.is_open(): with self.lock: retval = self.client.write_single_register(address, widgetvalue_uint) if retval: write_log("Register written. Address: %d, value: %d" % (address, value)) return True else: write_log("ERROR: Write failed. Address: %d, value: %d" % (address, value)) else: write_log("ERROR: client not connected.") return False def set_values(self, values, wait = True, go_to_value = True): """ :param values: dictionary of { address : value} both int :return: """ for address in values: if address not in self.register_values_widgets: continue val, widget = self.register_values_widgets[address] widget.set(str(values[address])) if go_to_value: self.__setbutton_click(wait) def __delete_window(self): CamGrabber.exit = True self.stop_signal = True self.client.close() self.root.quit()