def readDLMSPacket2(self, data, reply):
if not data:
return
notify = GXReplyData()
reply.error = 0
eop = 0x7E
#In network connection terminator is not used.
if self.client.interfaceType == InterfaceType.WRAPPER and isinstance(
self.media, GXNet):
eop = None
p = ReceiveParameters()
p.eop = eop
p.waitTime = self.waitTime
if eop is None:
p.Count = 8
else:
p.Count = 5
self.media.eop = eop
rd = GXByteBuffer()
with self.media.getSynchronous():
if not reply.isStreaming():
self.writeTrace(
"TX: " + self.now() + "\t" + GXByteBuffer.hex(data),
TraceLevel.VERBOSE)
print("TX: " + self.now() + "\t" + GXByteBuffer.hex(data))
self.media.send(data)
pos = 0
try:
while not self.client.getData(rd, reply, notify):
if notify.data.size != 0:
if not notify.isMoreData():
t = GXDLMSTranslator()
xml = t.dataToXml(notify.data)
print(xml)
notify.clear()
continue
elif not p.eop:
p.count = self.client.getFrameSize(rd)
while not self.media.receive(p):
pos += 1
if pos == 3:
raise TimeoutException(
"Failed to receive reply from the device in given time."
)
if rd.size == 0:
print("Data send failed. Try to resend " +
str(pos) + "/3")
self.media.send(data, None)
rd.set(p.reply)
p.reply = None
except Exception as e:
self.writeTrace("RX: " + self.now() + "\t" + str(rd),
TraceLevel.ERROR)
print("RX: " + self.now() + "\t" + str(rd))
raise e
self.writeTrace("RX: " + self.now() + "\t" + str(rd),
TraceLevel.VERBOSE)
print("RX: " + self.now() + "\t" + str(rd))
if reply.error != 0:
raise GXDLMSException(reply.error)
def __init__(self):
#List available serial ports.
print("Available ports:")
print(str(GXSerial.getPortNames()))
#Define End Of Packet char.
eop = '\r'
#Make connection using serial port.
media = GXSerial("COM10")
print(str(media))
#Start to listen events from the media.
media.addListener(self)
#Update port here to call onPropertyChanged event.
#TODO: Update correct port.
media.port = "UPDATE CORRECT PORT"
#Show all traces.
media.trace = TraceLevel.VERBOSE
#Set EOP for the media.
media.eop = eop
try:
#Open the connection.
media.open()
r = ReceiveParameters()
r.eop = eop
r.count = 5
#Wait reply for 2 seconds.
r.waitTime = 2000
############################
#Send data synchronously.
with media.getSynchronous():
media.send("Hello world!")
#Send EOP
media.send('\r')
ret = media.receive(r)
if ret:
print(str(r.reply.decode("ascii")))
else:
raise Exception("Failed to receive reply from the server.")
############################
#Send async data.
media.send("Server !\r")
#Wait 1 second to receive reply from the server.
time.sleep(1)
except (KeyboardInterrupt, SystemExit, Exception) as ex:
print(ex)
media.close()
media.removeListener(self)
def __init__(self):
#Define End Of Packet char.
eop = 0x7e
#Make connection using TCP/IP to localhost.
#Use ::1 if you want to use IP v6 address.
media = GXNet(NetworkType.TCP, "localhost", 0)
#Start to listen events from the media.
media.addListener(self)
print(str(media))
#Update port here to call onPropertyChanged event.
media.port = 1000
#Show all traces.
media.trace = TraceLevel.VERBOSE
#Set EOP for the media.
media.eop = eop
try:
#Open the connection.
media.open()
r = ReceiveParameters()
r.eop = eop
r.count = 5
#Wait reply for 2 seconds.
r.waitTime = 2000
############################
#Send data synchronously.
with media.getSynchronous():
media.send("Hello world!")
#Send EOP
media.send(eop)
ret = media.receive(r)
if ret:
print(str(r.reply.decode("ascii")))
else:
raise Exception("Failed to receive reply from the server.")
############################
#Send async data.
media.send("Server !")
media.send(eop)
#Wait 1 second to receive reply from the server.
time.sleep(1)
except (KeyboardInterrupt, SystemExit, Exception) as ex:
print(ex)
media.close()
media.removeListener(self)
def initializeOpticalHead(self):
if self.useOpticalHead and isinstance(self.media, GXSerial):
p = ReceiveParameters()
p.allData = False
p.eop = '\n'
p.waitTime = self.waitTime
with self.media.getSynchronous():
data = "/?!\r\n"
self.writeTrace("TX: " + self.now() + "\t" + data,
TraceLevel.VERBOSE)
self.media.send(data)
if not self.media.receive(p):
raise Exception("Failed to received reply from the media.")
self.writeTrace("RX: " + self.now() + "\t" + str(p.reply),
TraceLevel.VERBOSE)
#If echo is used.
replyStr = str(p.reply)
if data == replyStr:
p.reply = None
if not self.media.receive(p):
raise Exception(
"Failed to received reply from the media.")
self.writeTrace("RX: " + self.now() + "\t" + str(p.reply),
TraceLevel.VERBOSE)
replyStr = str(p.reply)
if not replyStr or replyStr[0] != '/':
raise Exception("Invalid responce : " + replyStr)
baudrate = replyStr[4]
if baudrate == '0':
bitrate = 300
elif baudrate == '1':
bitrate = 600
elif baudrate == '2':
bitrate = 1200
elif baudrate == '3':
bitrate = 2400
elif baudrate == '4':
bitrate = 4800
elif baudrate == '5':
bitrate = 9600
elif baudrate == '6':
bitrate = 19200
else:
raise Exception("Unknown baud rate.")
print("Bitrate is : " + bitrate)
#Send ACK
#Send Protocol control character
controlCharacter = '2'.encode()
#"2" HDLC protocol procedure (Mode E)
#Mode control character
#"2" //(HDLC protocol procedure) (Binary mode)
modeControlCharacter = '2'.encode()
#Set mode E.
tmp = bytearray([
0x06, controlCharacter, baudrate, modeControlCharacter, 13, 10
])
p.reply = None
with self.media.getSynchronous():
self.media.send(tmp)
self.writeTrace(
"TX: " + self.now() + "\t" + GXCommon.toHex(tmp),
TraceLevel.VERBOSE)
p.waitTime = 200
if self.media.receive(p):
self.writeTrace("RX: " + self.now() + "\t" + str(p.reply),
TraceLevel.VERBOSE)
self.media.close()
self.media.dataBits = 8
self.media.parity = Parity.NONE
self.media.stopBits = StopBits.ONE
self.media.baudRate = bitrate
self.media.open()
#This sleep make sure that all meters can be read.
time.sleep(1000)
def initializeConnection(self):
self.media.open()
if self.iec and isinstance(self.media, GXSerial):
p = ReceiveParameters()
p.allData = False
p.eop = '\n'
p.waitTime = self.waitTime
with self.media.getSynchronous():
data = "/?!\r\n"
self.writeTrace("TX: " + self.now() + "\t" + data,
TraceLevel.VERBOSE)
self.media.send(data)
if not self.media.receive(p):
raise Exception("Failed to received reply from the media.")
self.writeTrace("RX: " + self.now() + "\t" + str(p.reply),
TraceLevel.VERBOSE)
#If echo is used.
replyStr = str(p.reply)
if data == replyStr:
p.reply = None
if not self.media.receive(p):
raise Exception(
"Failed to received reply from the media.")
self.writeTrace("RX: " + self.now() + "\t" + str(p.reply),
TraceLevel.VERBOSE)
replyStr = str(p.reply)
if not replyStr or replyStr[0] != '/':
raise Exception("Invalid responce : " + replyStr)
baudrate = replyStr[4]
if baudrate == '0':
bitrate = 300
elif baudrate == '1':
bitrate = 600
elif baudrate == '2':
bitrate = 1200
elif baudrate == '3':
bitrate = 2400
elif baudrate == '4':
bitrate = 4800
elif baudrate == '5':
bitrate = 9600
elif baudrate == '6':
bitrate = 230400
else:
raise Exception("Unknown baud rate.")
print("Bitrate is : " + bitrate)
#Send ACK
#Send Protocol control character
controlCharacter = '2'.encode()
#"2" HDLC protocol procedure (Mode E)
#Mode control character
#"2" //(HDLC protocol procedure) (Binary mode)
modeControlCharacter = '2'.encode()
#Set mode E.
tmp = bytearray([
0x06, controlCharacter, baudrate, modeControlCharacter, 13, 10
])
p.reply = None
with self.media.getSynchronous():
self.media.send(tmp)
self.writeTrace(
"TX: " + self.now() + "\t" + GXCommon.toHex(tmp),
TraceLevel.VERBOSE)
p.waitTime = 200
if self.media.receive(p):
self.writeTrace("RX: " + self.now() + "\t" + str(p.reply),
TraceLevel.VERBOSE)
self.media.close()
self.media.dataBits = 8
self.media.parity = Parity.NONE
self.media.stopBits = StopBits.ONE
self.media.baudRate = bitrate
self.media.open()
#This sleep make sure that all meters can be read.
time.sleep(1000)
reply = GXReplyData()
data = self.client.snrmRequest()
if data:
self.readDLMSPacket(data, reply)
self.client.parseUAResponse(reply.data)
size = self.client.limits.maxInfoTX + 40
self.replyBuff = bytearray(size)
reply.clear()
self.readDataBlock(self.client.aarqRequest(), reply)
self.client.parseAareResponse(reply.data)
reply.clear()
if self.client.authentication > Authentication.LOW:
for it in self.client.getApplicationAssociationRequest():
self.readDLMSPacket(it, reply)
self.client.parseApplicationAssociationResponse(reply.data)
