def __init__(self, ip='127.0.0.1', port=502):
super(PboxTCP, self).__init__()
self.isopened = False
print('[Modbus TCP] %s -- %d' % (ip, port))
try:
pymodbus.new_tcp(ip, port)
# set_timeout(seconds, microseconds = us)
pymodbus.set_timeout(0, 3000000) # default timeout=3s
self.isopened = True
except BaseException as err:
led.ioctl(led.IXORA_LED4, led.RED, led.HIGH)
print(err)
def readstring(self, readlist, size=1):
"""
Read String from Device.
readlist = [function code, address, data type]
"""
if self.isopened is False:
return None
try:
ret = pymodbus.read_registers(readlist[0:3], size)
except BaseException as err:
if self.platform == 'linux':
led.ioctl(led.IXORA_LED4, led.GREEN, led.LOW)
led.ioctl(led.IXORA_LED4, led.RED, led.HIGH)
print(err)
return None
else:
if self.platform == 'linux':
led.ioctl(led.IXORA_LED4, led.RED, led.LOW)
led.ioctl(led.IXORA_LED4, led.GREEN, led.HIGH)
else:
pass
# And each hexadecimal number into ASCII code
return ''.join((lambda v: [chr(i) for i in v])(ret)).strip('\x00')
def newrtu(self, dev='/dev/ttymxc1'):
"""New RTU for Modbus."""
print('[Modbus RTU] Port=%s' % (dev))
try:
self.isopened = pymodbus.new_rtu(dev)
except BaseException as err:
self.isopened = False
print(err)
if (self.platform == 'linux') and (self.isopened is False):
led.ioctl(led.IXORA_LED4, led.RED, led.HIGH)
return self.isopened
def newtcp(self, addr='127.0.0.1', port=502):
"""New TCP for Modbus."""
print('[Modbus TCP] IP=%s:%d' % (addr, port))
try:
self.isopened = pymodbus.new_tcp(addr, port)
except BaseException as err:
self.isopened = False
print(err)
if (self.platform == 'linux') and (self.isopened is False):
led.ioctl(led.IXORA_LED4, led.RED, led.HIGH)
return self.isopened
def insert(self, items_data):
"""
Insert MySQL Table Message.
items_data = [{itemName='', value=''}, {...}].
"""
insert_dict = {'table_name': self.tablename}
insert_dict['time'] = time.strftime("%Y%m%d %H:%M:%S",
time.localtime())
insert_dict['items'] = items_data
try:
ret = self.sess.post(self.inserturl,
data=json.dumps(insert_dict),
timeout=self.timeout)
val = int(ret.text)
except BaseException as err:
val = -1
print(err)
if self.platform == 'linux':
if val == 0:
led.ioctl(led.IXORA_LED5, led.GREEN, led.HIGH)
led.ioctl(led.IXORA_LED5, led.RED, led.LOW)
else:
led.ioctl(led.IXORA_LED5, led.GREEN, led.LOW)
led.ioctl(led.IXORA_LED5, led.RED, led.HIGH)
return val
def create(self, items_data):
"""
Create MySQL Table Message.
items_data = dict(Items[ {itemName='', itemType=''}, {...}])
"""
# create_data = {'table_name': self.table, 'items' : items_data}
create_data = dict(table_name=self.tablename, delFlg=0, items=[])
print('[PboxAliyun] Table Name = %s' % self.tablename)
for items in items_data.get('Items'):
create_data['items'].append(dict(itemName=items.get('itemName'),\
itemType=items.get('itemType')))
try:
ret = self.sess.post(self.createurl,
data=json.dumps(create_data),
timeout=self.timeout)
val = int(ret.text)
except BaseException as err:
val = -1
print(err)
if self.platform == 'linux':
if val == 0:
led.ioctl(led.IXORA_LED5, led.GREEN, led.HIGH)
led.ioctl(led.IXORA_LED5, led.RED, led.LOW)
else:
led.ioctl(led.IXORA_LED5, led.GREEN, led.LOW)
led.ioctl(led.IXORA_LED5, led.RED, led.HIGH)
return val
def create(self, items_data):
"""Create Table Message."""
# create_data = {'table_name': self.table, 'items' : items_data}
create_data = dict(table_name=self.table, delFlg=0, items=[])
print('[Modbus TCP] Cloud Table Name = %s' % self.table)
for items in items_data.get('Items'):
create_data['items'].append(dict(itemName=items.get('itemName'),\
itemType=items.get('itemType')))
try:
ret = self.sess.post(self.createurl,
data=json.dumps(create_data),
timeout=self.timeout)
val = int(ret.text)
except BaseException:
led.ioctl(led.IXORA_LED5, led.RED, led.HIGH)
return -1
else:
led.ioctl(led.IXORA_LED5, led.GREEN, led.HIGH)
if val == -1:
led.ioctl(led.IXORA_LED5, led.GREEN, led.LOW)
led.ioctl(led.IXORA_LED5, led.RED, led.HIGH)
return val
def send(self, readlist, length=1):
"""Send Data to Device."""
try:
ret = pymodbus.read_registers(readlist[0:3], length)
except BaseException as err:
led.ioctl(led.IXORA_LED4, led.GREEN, led.LOW)
led.ioctl(led.IXORA_LED4, led.RED, led.HIGH)
print(err)
return None
else:
led.ioctl(led.IXORA_LED4, led.RED, led.LOW)
led.ioctl(led.IXORA_LED4, led.GREEN, led.HIGH)
finally:
pass
# When the length is greater than 1, it is a string.
# And each hexadecimal number into ASCII code
return ret[0] if length == 1 else ''.join(
(lambda val: [chr(i) for i in val])(ret)).strip('\x00')
def readregs(self, readlist, size=1):
"""
Read Data from Device.
readlist = [function code, address, data type]
"""
if self.isopened is False:
return None
try:
retlist = pymodbus.read_registers(readlist[0:3], size)
except BaseException as err:
if self.platform == 'linux':
led.ioctl(led.IXORA_LED4, led.GREEN, led.LOW)
led.ioctl(led.IXORA_LED4, led.RED, led.HIGH)
print(err)
return None
else:
if self.platform == 'linux':
led.ioctl(led.IXORA_LED4, led.RED, led.LOW)
led.ioctl(led.IXORA_LED4, led.GREEN, led.HIGH)
else:
pass
return retlist
def __del__(self):
self.isopened = False
pymodbus.free_tcp()
if self.platform == 'linux':
led.ioctl(led.IXORA_LED4, led.GREEN, led.LOW)
led.ioctl(led.IXORA_LED4, led.RED, led.LOW)
def insert(self, items_data):
"""
Insert Data to DataBase.
items_data type is list.
"""
insert_dict = {'table_name': self.table}
insert_dict['time'] = time.strftime("%Y%m%d %H:%M:%S", time.localtime())
insert_dict['items'] = items_data
try:
ret = self.sess.post(self.inserturl, data=json.dumps(insert_dict), timeout=self.timeout)
val = int(ret.text)
except BaseException:
led.ioctl(led.IXORA_LED5, led.GREEN, led.LOW)
led.ioctl(led.IXORA_LED5, led.RED, led.HIGH)
return -1
else:
led.ioctl(led.IXORA_LED5, led.RED, led.LOW)
led.ioctl(led.IXORA_LED5, led.GREEN, led.HIGH)
if val == -1:
led.ioctl(led.IXORA_LED5, led.GREEN, led.LOW)
led.ioctl(led.IXORA_LED5, led.RED, led.HIGH)
return val
def __del__(self):
led.ioctl(led.IXORA_LED5, led.GREEN, led.LOW)
led.ioctl(led.IXORA_LED5, led.RED, led.LOW)
def __del__(self):
if self.platform == 'linux':
led.ioctl(led.IXORA_LED5, led.GREEN, led.LOW)
led.ioctl(led.IXORA_LED5, led.RED, led.LOW)
def __del__(self):
self.isopened = False
led.ioctl(led.IXORA_LED4, led.GREEN, led.LOW)
led.ioctl(led.IXORA_LED4, led.RED, led.LOW)
pymodbus.free_tcp()
def __del__(self):
led.ioctl(led.IXORA_LED4, led.GREEN, led.LOW)
led.ioctl(led.IXORA_LED4, led.RED, led.LOW)
pymodbus.free_rtu()