diff options
| -rw-r--r-- | README.md | 6 | ||||
| -rw-r--r-- | comlynx.py | 422 | ||||
| -rw-r--r-- | test_asyncio.py | 91 | ||||
| -rw-r--r-- | test_plain.py | 106 |
4 files changed, 625 insertions, 0 deletions
diff --git a/README.md b/README.md new file mode 100644 index 0000000..1484c48 --- /dev/null +++ b/README.md @@ -0,0 +1,6 @@ +# Python library to access Danfoss ULX/TLX inverters over RS-485 + +* Some code is based on https://bitbucket.org/wagnerflo/pycoly +* Compatible with micropython and cpython +* Supports Ping, GetNodeInformation and CAN Messages + diff --git a/comlynx.py b/comlynx.py new file mode 100644 index 0000000..eb9b360 --- /dev/null +++ b/comlynx.py @@ -0,0 +1,422 @@ +# Copyright (c) 2012, Florian Wagner <florian@wagner-flo.net> See https://bitbucket.org/wagnerflo/pycoly. +# Copyright (c) 2018, Yves Fischer <yvesf+git@xapek.org>. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, +# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR +# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF +# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING +# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +import struct + +__all__ = [ + 'hdlc', + 'Address', 'ProtocolError', 'ParseError', 'Message', + 'PingRequest', 'PingReply', 'GetNodeInformationRequest', 'GetNodeInformationReply', 'CanRequest', 'CanReply', + 'Parameters', +] + + +class hdlc: + _fcs_init = 0xffff + _fcs_table = ( + 0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf, + 0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7, + 0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e, + 0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876, + 0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd, + 0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5, + 0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c, + 0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974, + 0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb, + 0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3, + 0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a, + 0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72, + 0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9, + 0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1, + 0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738, + 0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70, + 0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7, + 0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff, + 0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036, + 0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e, + 0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5, + 0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd, + 0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134, + 0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c, + 0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3, + 0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb, + 0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232, + 0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a, + 0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1, + 0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9, + 0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330, + 0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78 + ) + + @staticmethod + def _fcs(iterator, yield_bytes): + fcs = hdlc._fcs_init + for byte in iterator: + fcs = (fcs >> 8) ^ hdlc._fcs_table[(fcs ^ byte) & 0xff] + if yield_bytes: + yield byte + fcs = fcs ^ hdlc._fcs_init + yield fcs & 0x00ff + yield fcs >> 8 + + @staticmethod + def fcs(iterator): + return tuple(hdlc._fcs(iterator, False)) + + @staticmethod + def append_fcs(iterator): + return hdlc._fcs(iterator, True) + + control_escape = 0x7d + flag_sequence = 0x7e + broadcast = 0xff + unnumbered_info = 0x03 + + @staticmethod + def byte_stuff(iterator, additional=()): + stuff = (hdlc.control_escape, hdlc.flag_sequence) + additional + for byte in iterator: + if byte in stuff: + yield 0x7d + yield byte ^ 0x20 + else: + yield byte + + @staticmethod + def byte_unstuff(iterator, count): + for i in range(count): + byte = next(iterator) + if byte == hdlc.control_escape: + yield ord(next(iterator)) ^ 0x20 + else: + yield byte + + +class ProtocolError(Exception): + pass + + +class ParseError(Exception): + pass + + +def _chain(*items): + for item in items: + try: + for i in item: + yield i + except TypeError: + yield item + + +class Address: + def __init__(self, network, subnet, node): + if not (0 <= network < 16 and 0 <= subnet < 16 and 0 <= node < 256): + raise ProtocolError('Invalid address') + self.network = network + self.subnet = subnet + self.node = node + + def as_bytes(self): + return (self.network << 4 | self.subnet, self.node) + + def __repr__(self): + return "({:02x}-{:02x}-{:02x})".format(self.network, self.subnet, self.node) + + @classmethod + def from_bytes(cls, first, second): + return cls(first >> 4, first & 0x0f, second) + + @classmethod + def broadcast(cls, network=0xf, subnet=0xf): + return cls(network, subnet, 0xff) + + +message_types = {} + + +class Message(object): + source = property(lambda self: self._source) + destination = property(lambda self: self._destination) + + def __init__(self, source, destination, data=()): + self._source = source + self._destination = destination + self._data = data + + def __iter__(self): + return _chain( + hdlc.flag_sequence, + hdlc.byte_stuff( + hdlc.append_fcs( + _chain( + hdlc.broadcast, hdlc.unnumbered_info, + self._source.as_bytes(), + self._destination.as_bytes(), + len(self._data), self._type, self._data))), + hdlc.flag_sequence) + + def __str__(self): + return u'<{}.{} source={} destination={} type=0x{:02x} data="{}">'.format( + type(self).__module__, type(self).__name__, + self._source, self._destination, self._type, + ' '.join(hex(byte) for byte in self)) + + @classmethod + def unpack(cls, data_bytes): + iterator = iter(data_bytes) + + def read(count): + return tuple(hdlc.byte_unstuff(iterator, count)) + + if read(3) != (hdlc.flag_sequence, hdlc.broadcast, + hdlc.unnumbered_info): + raise ParseError() + + source = read(2) + destination = read(2) + size, type = read(2) + data = read(size) + + if (type >> 5) & 0x1 == 1: + raise ProtocolError("Application Error") + if (type >> 6) & 0x1 == 1: + raise ProtocolError("Transmission Error") + + crc = hdlc.fcs(_chain(hdlc.broadcast, hdlc.unnumbered_info, + source, destination, size, type, data)) + if read(2) != crc: + raise ParseError('crc does not match {}'.format(crc)) + + if read(1) != (hdlc.flag_sequence,): + raise ParseError() + + source = Address.from_bytes(*source) + destination = Address.from_bytes(*destination) + + if type in message_types: + return message_types[type].unpack_data(source, destination, data) + else: + raise ProtocolError("Unknown type: {}".format(type)) + + @classmethod + def unpack_data(cls, source, destination, data): + raise NotImplementedError() + + +class PingRequest(Message): + _type = 0x15 + + def __init__(self, source, destination): + super(PingRequest, self).__init__(source, destination, ()) + + @classmethod + def unpack_data(cls, source, destination, data): + return cls(source, destination) + + +message_types[PingRequest._type] = PingRequest + + +class PingReply(Message): + _type = 0x95 + + def __init__(self, source, destination): + super(PingReply, self).__init__(source, destination, ()) + + @classmethod + def unpack_data(cls, source, destination, data): + return cls(source, destination) + + +message_types[PingReply._type] = PingReply + + +class GetNodeInformationRequest(Message): + _type = 0x13 + + def __init__(self, source, destination): + super(GetNodeInformationRequest, self).__init__( + source, destination, 29 * (0xff,)) + + @classmethod + def unpack_data(cls, source, destination, data): + return cls(source, destination) + + +message_types[GetNodeInformationRequest._type] = GetNodeInformationRequest + + +class GetNodeInformationReply(Message): + _type = 0x93 + + def __init__(self, source, destination, data): + super(GetNodeInformationReply, self).__init__( + source, destination, data) + + def get_product_number(self): + return bytes(self._data[0:11]).decode('ascii') + + product_number = property(get_product_number) + + def get_serial_number(self): + return bytes(self._data[12:23]).decode('ascii') + + serial_number = property(get_serial_number) + + def get_network_number(self): + return self._data[24] + + network_number = property(get_network_number) + + def get_subnet_number(self): + return self._data[25] + + subnet_number = property(get_subnet_number) + + def get_address(self): + return self._data[26] + + address = property(get_address) + + def get_device_type_id(self): + return self._data[27] + + device_type_id = property(get_device_type_id) # "for future use" + + def get_device_type_sub_id(self): + return self._data[28] + + device_type_sub_id = property(get_device_type_sub_id) # "for future use" + + @classmethod + def unpack_data(cls, source, destination, data): + if len(data) != 0x1d: + raise ParseError("Length of {} is not 29".format(cls)) + return cls(source, destination, data) + + +message_types[GetNodeInformationReply._type] = GetNodeInformationReply + + +class Parameters: + class ULX: + # Raw measured values + RawInstantEnergyProduction1 = [0x01, 0x01, 0x01] + RawInstantEnergyProduction2 = [0x01, 0x01, 0x02] + RawInstantEnergyProduction3 = [0x01, 0x01, 0x03] + RawInstantEnergyProduction4 = [0x01, 0x01, 0x04] + # Smoothed measured values + SmoothedInstantEnergyProduction = [0x02, 0x01, 0xd] + GridVoltage = [0x02, 0x14, 0xd] + GridCurrent = [0x02, 0x15, 0xd] + GridFrequency = [0x02, 0x16, 0xd] + PVVoltage1 = [0x02, 0x28, 0xd] + PVVoltage2 = [0x02, 0x29, 0xd] + PVVoltage3 = [0x02, 0x2a, 0xd] + PVCurrent1 = [0x02, 0x2d, 0xd] + PVCurrent2 = [0x02, 0x2e, 0xd] + PVCurrent3 = [0x02, 0x2f, 0xd] + # Status information + LatestEvent = [0x0a, 0x28, 0x0d] + OperationMode = [0x0a, 0x02, 0x04] + ModulesInUseMask = [0x0a, 0x02, 0x04] + LatestEventModule = [0x0a, 0x29, 0x0d] + + +class CanDataType: + NOT_DEFINED = 0x0 + BOOLEAN = 0x1 + SIGNED_8 = 0x2 + SIGNED_16 = 0x3 + SIGNED_32 = 0x4 + UNSIGNED_8 = 0x5 + UNSIGNED_16 = 0x6 + UNSIGNED_32 = 0x7 + FLOAT = 0x8 + VISIBLE_STRING = 0x9 + PACKED_BYTES = 0xa + PACKED_WORDS = 0xb + + @staticmethod + def decode(type, value): + if type == CanDataType.BOOLEAN: + raise NotImplementedError("Boolean not implemented") + elif type == CanDataType.UNSIGNED_8: + return value[0] + elif type == CanDataType.UNSIGNED_16: + return struct.unpack('H', bytes(value[0:2]))[0] + elif type == CanDataType.UNSIGNED_32: + return struct.unpack('i', bytes(value[0:4]))[0] + else: + raise NotImplementedError('Data type not supported: {} for data: {}'.format(type, value)) + + +class CanRequest(Message): + """Embedded CAN Kingdom message""" + _type = 0x01 + + def __init__(self, source, destination, parameter_index, parameter_sub_index, destination_module): + super(CanRequest, self).__init__( + source, destination, 10 * [0x00, ]) + self._data[0] = 0xc8 + self._data[1] = destination_module # Destination module id + self._data[2] = 0xd0 # + self._data[3] = parameter_index # Parameter index + self._data[4] = parameter_sub_index # parameter sub-index + self._data[5] = 0x00 + self._data[6] = 0x00 + self._data[7] = 0x00 + self._data[8] = 0x00 + + @classmethod + def unpack_data(cls, source, destination, data): + msg = cls(source, destination) + print(data) + return msg + + +message_types[CanRequest._type] = CanRequest + + +class CanReply(Message): + _type = 0x81 + + def __init__(self, source, destination, data): + super(CanReply, self).__init__( + source, destination, data) + + def value(self): + dt = self._data[5] & 0x0f + return CanDataType.decode(dt, self._data[6:10]) + + @classmethod + def unpack_data(cls, source, destination, data): + msg = cls(source, destination, data) + return msg + + +message_types[CanReply._type] = CanReply diff --git a/test_asyncio.py b/test_asyncio.py new file mode 100644 index 0000000..d917e35 --- /dev/null +++ b/test_asyncio.py @@ -0,0 +1,91 @@ +# Copyright (c) 2018, Yves Fischer <yvesf+git@xapek.org>. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, +# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR +# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF +# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING +# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +if __name__ == "__main__": + import typing + import asyncio + + import serial_asyncio + import serial + + from comlynx import * + + + @asyncio.coroutine + def open_serial() -> typing.Tuple[asyncio.StreamReader, asyncio.StreamWriter]: + reader = asyncio.StreamReader() + ser = serial.serial_for_url('/dev/ttyUSB0', baudrate=19200) + protocol = asyncio.StreamReaderProtocol(reader, loop=loop) + transport = serial_asyncio.SerialTransport(loop, protocol, ser) + writer = asyncio.StreamWriter(transport, protocol, reader, loop) + return reader, writer + + + @asyncio.coroutine + def request(reader: asyncio.StreamReader, writer: asyncio.StreamWriter, message): + data = bytes(tuple(message)) + print("Write: {}".format(data)) + writer.write(data) + + begin = yield from reader.read(1) + if begin != bytes([hdlc.flag_sequence]): + raise Exception('{}'.format(begin)) + + data = begin + (yield from reader.readuntil(b'\x7e')) + print("Read: {}".format(data)) + m = Message.unpack(iter(data)) + return m + + + @asyncio.coroutine + def ping(): + reader, writer = yield from open_serial() + message = PingRequest(Address(0, 0, 2), Address.broadcast()) + response = yield from request(reader, writer, message) + print(response) + + + @asyncio.coroutine + def get_node_request(): + reader, writer = yield from open_serial() + message = GetNodeInformationRequest(Address(0x00, 0x00, 0x02), Address(0x01, 0x01, 0x3d)) + response = yield from request(reader, writer, message) + print(response) + + + @asyncio.coroutine + def can(): + reader, writer = yield from open_serial() + message = CanRequest(Address(0x00, 0x00, 0x02), Address(0x01, 0x01, 0x3d), *Parameters.ULX.LatestEvent) + response = yield from request(reader, writer, message) + print(response) + + + loop = asyncio.get_event_loop() + loop.run_until_complete(can()) + + print("Close loop") + loop.close() diff --git a/test_plain.py b/test_plain.py new file mode 100644 index 0000000..6690064 --- /dev/null +++ b/test_plain.py @@ -0,0 +1,106 @@ +# Copyright (c) 2018, Yves Fischer <yvesf+git@xapek.org>. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, +# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR +# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF +# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING +# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +import selectors +import os +import logging +import termios +import tty +from comlynx import * + + +def execute(message): + with SerialConnection('/dev/ttyUSB0') as conn: + data = bytes(tuple(message)) + logging.debug("Write: %s", data) + os.write(conn.fd, data) + + data = b'' + while conn.wait_for_data(1.0): + data += os.read(conn.fd, 8) + if len(data) > 1 and data.endswith(b'\x7e'): + # one frame is complete then + m = Message.unpack(data) + logging.debug("Received: %s", m) + yield m + + +class SerialConnection: + def __init__(self, path): + self._path = path + self.fd = None + self.sel = selectors.DefaultSelector() + + def __enter__(self): + self.fd = os.open(self._path, os.O_RDWR | os.O_NOCTTY) + + tty.setraw(self.fd, tty.TCSAFLUSH) + iflag, oflag, cflag, lflag, ispeed, ospeed, cc = termios.tcgetattr(self.fd) + ispeed, ospeed = termios.B19200, termios.B19200 + cc[termios.VTIME] = 10 + cc[termios.VMIN] = 1 + termios.tcsetattr(self.fd, termios.TCSAFLUSH, [iflag, oflag, cflag, lflag, ispeed, ospeed, cc]) + + termios.tcflush(self.fd, termios.TCIOFLUSH) + + self.sel.register(self.fd, selectors.EVENT_READ, 'READ-READY') + + return self + + def __exit__(self, exc_type, exc_val, exc_tb): + self.sel.close() + os.close(self.fd) + + def wait_for_data(self, timeout): + for key, mask in self.sel.select(timeout=timeout): + if key.data == 'READ-READY': + return True + return False + +def main(): + source = Address(0x0, 0x0, 0x01) + ping =PingRequest(source, Address.broadcast()) + print(ping) + for ping_reply in execute(ping): + node_information: GetNodeInformationReply = next(execute(GetNodeInformationRequest(source, ping_reply.source))) + device_name = "{}_{}".format(node_information.product_number, node_information.serial_number) + + for field, value in Parameters.ULX.__dict__.items(): + if field.startswith('_'): + continue + try: + for message in execute(CanRequest(source, ping_reply.source, *value)): + if isinstance(message, CanReply): + print("comlynx.{}.{} value={}".format(device_name, field, message.value())) + else: + raise Exception(field) + except ProtocolError as e: + logging.error("%s %s", field, str(e)) + + +if __name__ == "__main__": + logging.basicConfig(level=logging.DEBUG) + main() |