Files
tsun-gen3-proxy/app/src/gen3plus/solarman_v5.py

768 lines
29 KiB
Python

import struct
import logging
import time
import asyncio
from datetime import datetime
if __name__ == "app.src.gen3plus.solarman_v5":
from app.src.async_ifc import AsyncIfc
from app.src.messages import hex_dump_memory, Message, State
from app.src.modbus import Modbus
from app.src.config import Config
from app.src.gen3plus.infos_g3p import InfosG3P
from app.src.infos import Register, Fmt
else: # pragma: no cover
from async_ifc import AsyncIfc
from messages import hex_dump_memory, Message, State
from config import Config
from modbus import Modbus
from gen3plus.infos_g3p import InfosG3P
from infos import Register, Fmt
logger = logging.getLogger('msg')
class Sequence():
def __init__(self, server_side: bool):
self.rcv_idx = 0
self.snd_idx = 0
self.server_side = server_side
def set_recv(self, val: int):
if self.server_side:
self.rcv_idx = val >> 8
self.snd_idx = val & 0xff
else:
self.rcv_idx = val & 0xff
self.snd_idx = val >> 8
def get_send(self):
self.snd_idx += 1
self.snd_idx &= 0xff
if self.server_side:
return (self.rcv_idx << 8) | self.snd_idx
else:
return (self.snd_idx << 8) | self.rcv_idx
def __str__(self):
return f'{self.rcv_idx:02x}:{self.snd_idx:02x}'
class SolarmanBase(Message):
def __init__(self, addr, ifc: "AsyncIfc", server_side: bool,
_send_modbus_cb, mb_timeout: int):
super().__init__('G3P', ifc, server_side, _send_modbus_cb,
mb_timeout)
ifc.rx_set_cb(self.read)
ifc.prot_set_timeout_cb(self._timeout)
ifc.prot_set_init_new_client_conn_cb(self._init_new_client_conn)
ifc.prot_set_update_header_cb(self.__update_header)
self.addr = addr
self.conn_no = ifc.get_conn_no()
self.header_len = 11 # overwrite construcor in class Message
self.control = 0
self.seq = Sequence(server_side)
self.snr = 0
self.time_ofs = 0
def read(self) -> float:
'''process all received messages in the _recv_buffer'''
self._read()
while True:
if not self.header_valid:
self.__parse_header(self.ifc.rx_peek(),
self.ifc.rx_len())
if self.header_valid and self.ifc.rx_len() >= \
(self.header_len + self.data_len+2):
self.__process_complete_received_msg()
self.__flush_recv_msg()
else:
return 0 # wait 0s before sending a response
'''
Our public methods
'''
def _flow_str(self, server_side: bool, type: str): # noqa: F821
switch = {
'rx': ' <',
'tx': ' >',
'forwrd': '<< ',
'drop': ' xx',
'rxS': '> ',
'txS': '< ',
'forwrdS': ' >>',
'dropS': 'xx ',
}
if server_side:
type += 'S'
return switch.get(type, '???')
def get_fnc_handler(self, ctrl):
fnc = self.switch.get(ctrl, self.msg_unknown)
if callable(fnc):
return fnc, repr(fnc.__name__)
else:
return self.msg_unknown, repr(fnc)
def _build_header(self, ctrl) -> None:
'''build header for new transmit message'''
self.send_msg_ofs = self.ifc.tx_len()
self.ifc.tx_add(struct.pack(
'<BHHHL', 0xA5, 0, ctrl, self.seq.get_send(), self.snr))
_fnc, _str = self.get_fnc_handler(ctrl)
logger.info(self._flow_str(self.server_side, 'tx') +
f' Ctl: {int(ctrl):#04x} Msg: {_str}')
def _finish_send_msg(self) -> None:
'''finish the transmit message, set lenght and checksum'''
_len = self.ifc.tx_len() - self.send_msg_ofs
struct.pack_into('<H', self.ifc.tx_peek(), self.send_msg_ofs+1,
_len-11)
check = sum(self.ifc.tx_peek()[
self.send_msg_ofs+1:self.send_msg_ofs + _len]) & 0xff
self.ifc.tx_add(struct.pack('<BB', check, 0x15)) # crc & stop
def _timestamp(self):
# utc as epoche
return int(time.time()) # pragma: no cover
def _emu_timestamp(self):
'''timestamp for an emulated inverter (realtime - 1 day)'''
one_day = 24*60*60
return self._timestamp()-one_day
'''
Our private methods
'''
def __update_header(self, _forward_buffer):
'''update header for message before forwarding,
set sequence and checksum'''
_len = len(_forward_buffer)
ofs = 0
while ofs < _len:
result = struct.unpack_from('<BH', _forward_buffer, ofs)
data_len = result[1] # len of variable id string
struct.pack_into('<H', _forward_buffer, ofs+5,
self.seq.get_send())
check = sum(_forward_buffer[ofs+1:ofs+data_len+11]) & 0xff
struct.pack_into('<B', _forward_buffer, ofs+data_len+11, check)
ofs += (13 + data_len)
def __process_complete_received_msg(self):
log_lvl = self.log_lvl.get(self.control, logging.WARNING)
if callable(log_lvl):
log_lvl = log_lvl()
self.ifc.rx_log(log_lvl, f'Received from {self.addr}:')
# self._recv_buffer, self.header_len +
# self.data_len+2)
if self.__trailer_is_ok(self.ifc.rx_peek(), self.header_len
+ self.data_len + 2):
if self.state == State.init:
self.state = State.received
self._set_serial_no(self.snr)
self.__dispatch_msg()
def __parse_header(self, buf: bytes, buf_len: int) -> None:
if (buf_len < self.header_len): # enough bytes for complete header?
return
result = struct.unpack_from('<BHHHL', buf, 0)
# store parsed header values in the class
start = result[0] # start byte
self.data_len = result[1] # len of variable id string
self.control = result[2]
self.seq.set_recv(result[3])
self.snr = result[4]
if start != 0xA5:
hex_dump_memory(logging.ERROR,
'Drop packet w invalid start byte from'
f' {self.addr}:', buf, buf_len)
self.inc_counter('Invalid_Msg_Format')
# erase broken recv buffer
self.ifc.rx_clear()
return
self.header_valid = True
def __trailer_is_ok(self, buf: bytes, buf_len: int) -> bool:
crc = buf[self.data_len+11]
stop = buf[self.data_len+12]
if stop != 0x15:
hex_dump_memory(logging.ERROR,
'Drop packet w invalid stop byte from '
f'{self.addr}:', buf, buf_len)
self.inc_counter('Invalid_Msg_Format')
if self.ifc.rx_len() > (self.data_len+13):
next_start = buf[self.data_len+13]
if next_start != 0xa5:
# erase broken recv buffer
self.ifc.rx_clear()
return False
check = sum(buf[1:buf_len-2]) & 0xff
if check != crc:
self.inc_counter('Invalid_Msg_Format')
logger.debug(f'CRC {int(crc):#02x} {int(check):#08x}'
f' Stop:{int(stop):#02x}')
# start & stop byte are valid, discard only this message
return False
return True
def __flush_recv_msg(self) -> None:
self.ifc.rx_get(self.header_len + self.data_len+2)
self.header_valid = False
def __dispatch_msg(self) -> None:
_fnc, _str = self.get_fnc_handler(self.control)
if self.unique_id:
logger.info(self._flow_str(self.server_side, 'rx') +
f' Ctl: {int(self.control):#04x}' +
f' Msg: {_str}')
_fnc()
else:
logger.info(self._flow_str(self.server_side, 'drop') +
f' Ctl: {int(self.control):#04x}' +
f' Msg: {_str}')
'''
Message handler methods
'''
def msg_response(self):
data = self.ifc.rx_peek()[self.header_len:]
result = struct.unpack_from('<BBLL', data, 0)
ftype = result[0] # always 2
valid = result[1] == 1 # status
ts = result[2]
set_hb = result[3] # always 60 or 120
logger.debug(f'ftype:{ftype} accepted:{valid}'
f' ts:{ts:08x} nextHeartbeat: {set_hb}s')
dt = datetime.fromtimestamp(ts)
logger.debug(f'ts: {dt.strftime("%Y-%m-%d %H:%M:%S")}')
return ftype, valid, ts, set_hb
class SolarmanV5(SolarmanBase):
AT_CMD = 1
MB_RTU_CMD = 2
'''regular Modbus polling time in server mode'''
MB_CLIENT_DATA_UP = 10
'''Data up time in client mode'''
HDR_FMT = '<BLLL'
'''format string for packing of the header'''
def __init__(self, addr, ifc: "AsyncIfc",
server_side: bool, client_mode: bool):
super().__init__(addr, ifc, server_side, self.send_modbus_cb,
mb_timeout=8)
self.db = InfosG3P(client_mode)
self.forward_at_cmd_resp = False
self.no_forwarding = False
'''not allowed to connect to TSUN cloud by connection type'''
self.establish_inv_emu = False
'''create an Solarman EMU instance to send data to the TSUN cloud'''
self.switch = {
0x4210: self.msg_data_ind, # real time data
0x1210: self.msg_response, # at least every 5 minutes
0x4710: self.msg_hbeat_ind, # heatbeat
0x1710: self.msg_response, # every 2 minutes
# every 3 hours comes a sync seuqence:
# 00:00:00 0x4110 device data ftype: 0x02
# 00:00:02 0x4210 real time data ftype: 0x01
# 00:00:03 0x4210 real time data ftype: 0x81
# 00:00:05 0x4310 wifi data ftype: 0x81 sub-id 0x0018: 0c # noqa: E501
# 00:00:06 0x4310 wifi data ftype: 0x81 sub-id 0x0018: 1c # noqa: E501
# 00:00:07 0x4310 wifi data ftype: 0x01 sub-id 0x0018: 0c # noqa: E501
# 00:00:08 0x4810 options? ftype: 0x01
0x4110: self.msg_dev_ind, # device data, sync start
0x1110: self.msg_response, # every 3 hours
0x4310: self.msg_sync_start, # regulary after 3-6 hours
0x1310: self.msg_response,
0x4810: self.msg_sync_end, # sync end
0x1810: self.msg_response,
#
# MODbus or AT cmd
0x4510: self.msg_command_req, # from server
0x1510: self.msg_command_rsp, # from inverter
# 0x0510: self.msg_command_rsp, # from inverter
}
self.log_lvl = {
0x4210: logging.INFO, # real time data
0x1210: logging.INFO, # at least every 5 minutes
0x4710: logging.DEBUG, # heatbeat
0x1710: logging.DEBUG, # every 2 minutes
0x4110: logging.INFO, # device data, sync start
0x1110: logging.INFO, # every 3 hours
0x4310: logging.INFO, # regulary after 3-6 hours
0x1310: logging.INFO,
0x4810: logging.INFO, # sync end
0x1810: logging.INFO,
#
# MODbus or AT cmd
0x4510: logging.INFO, # from server
0x1510: self.get_cmd_rsp_log_lvl,
}
g3p_cnf = Config.get('gen3plus')
if 'at_acl' in g3p_cnf: # pragma: no cover
self.at_acl = g3p_cnf['at_acl']
self.sensor_list = 0x0000
self.mb_start_reg = 0x0001 # 0x7001
self.mb_incr_reg = 0x100 # 4
self.mb_inv_no = 144 # 3
self.mb_scan_len = 4
'''
Our puplic methods
'''
def close(self) -> None:
logging.debug('Solarman.close()')
# we have references to methods of this class in self.switch
# so we have to erase self.switch, otherwise this instance can't be
# deallocated by the garbage collector ==> we get a memory leak
self.switch.clear()
self.log_lvl.clear()
super().close()
async def send_start_cmd(self, snr: int, host: str,
forward: bool,
start_timeout=MB_CLIENT_DATA_UP):
self.no_forwarding = True
self.establish_inv_emu = forward
self.snr = snr
self._set_serial_no(snr)
self.mb_timeout = start_timeout
self.db.set_db_def_value(Register.IP_ADDRESS, host)
self.db.set_db_def_value(Register.POLLING_INTERVAL,
self.mb_timeout)
self.db.set_db_def_value(Register.DATA_UP_INTERVAL,
300)
self.db.set_db_def_value(Register.COLLECT_INTERVAL,
1)
self.db.set_db_def_value(Register.HEARTBEAT_INTERVAL,
120)
self.db.set_db_def_value(Register.SENSOR_LIST,
Fmt.hex4((self.sensor_list, )))
self.new_data['controller'] = True
self.state = State.up
# self.__build_header(0x1710)
# self.ifc.write += struct.pack('<B', 0)
# self.__finish_send_msg()
# hex_dump_memory(logging.INFO, f'Send StartCmd:{self.addr}:',
# self.ifc.write, len(self.ifc.write))
# self.writer.write(self.ifc.write)
# self.ifc.write = bytearray(0) # self.ifc.write[sent:]
if self.sensor_list != 0x02b0:
self._send_modbus_cmd(self.mb_inv_no, Modbus.READ_REGS,
self.mb_start_reg, self.mb_scan_len,
logging.INFO)
else:
self.mb_inv_no = Modbus.INV_ADDR
self._send_modbus_cmd(self.mb_inv_no, Modbus.READ_REGS, 0x3000,
48, logging.DEBUG)
self.mb_timer.start(self.mb_timeout)
def new_state_up(self):
if self.state is not State.up:
self.state = State.up
if (self.modbus_polling):
self.mb_timer.start(self.mb_first_timeout)
self.db.set_db_def_value(Register.POLLING_INTERVAL,
self.mb_timeout)
def establish_emu(self):
_len = 223
build_msg = self.db.build(_len, 0x41, 2)
struct.pack_into(
'<BHHHLBL', build_msg, 0, 0xA5, _len-11, 0x4110,
0, self.snr, 2, self._emu_timestamp())
self.ifc.fwd_add(build_msg)
self.ifc.fwd_add(struct.pack('<BB', 0, 0x15)) # crc & stop
def __set_config_parms(self, inv: dict):
'''init connection with params from the configuration'''
self.node_id = inv['node_id']
self.sug_area = inv['suggested_area']
self.modbus_polling = inv['modbus_polling']
self.sensor_list = inv['sensor_list']
if self.mb:
self.mb.set_node_id(self.node_id)
def _set_serial_no(self, snr: int):
'''check the serial number and configure the inverter connection'''
serial_no = str(snr)
if self.unique_id == serial_no:
logger.debug(f'SerialNo: {serial_no}')
else:
inverters = Config.get('inverters')
# logger.debug(f'Inverters: {inverters}')
for key, inv in inverters.items():
# logger.debug(f'key: {key} -> {inv}')
if (type(inv) is dict and 'monitor_sn' in inv
and inv['monitor_sn'] == snr):
self.__set_config_parms(inv)
self.db.set_pv_module_details(inv)
logger.debug(f'SerialNo {serial_no} allowed! area:{self.sug_area}') # noqa: E501
self.db.set_db_def_value(Register.COLLECTOR_SNR, snr)
self.db.set_db_def_value(Register.SERIAL_NUMBER, key)
break
else:
self.node_id = ''
self.sug_area = ''
if 'allow_all' not in inverters or not inverters['allow_all']:
self.inc_counter('Unknown_SNR')
self.unique_id = None
logger.warning(f'ignore message from unknow inverter! (SerialNo: {serial_no})') # noqa: E501
return
logger.warning(f'SerialNo {serial_no} not known but accepted!')
self.unique_id = serial_no
def forward(self, buffer, buflen) -> None:
'''add the actual receive msg to the forwarding queue'''
if self.no_forwarding:
return
tsun = Config.get('solarman')
if tsun['enabled']:
self.ifc.fwd_add(buffer[:buflen])
self.ifc.fwd_log(logging.DEBUG, 'Store for forwarding:')
_, _str = self.get_fnc_handler(self.control)
logger.info(self._flow_str(self.server_side, 'forwrd') +
f' Ctl: {int(self.control):#04x}'
f' Msg: {_str}')
def _init_new_client_conn(self) -> bool:
return False
def _heartbeat(self) -> int:
return 60 # pragma: no cover
def __send_ack_rsp(self, msgtype, ftype, ack=1):
self._build_header(msgtype)
self.ifc.tx_add(struct.pack('<BBLL', ftype, ack,
self._timestamp(),
self._heartbeat()))
self._finish_send_msg()
def send_modbus_cb(self, pdu: bytearray, log_lvl: int, state: str):
if self.state != State.up:
logger.warning(f'[{self.node_id}] ignore MODBUS cmd,'
' cause the state is not UP anymore')
return
self._build_header(0x4510)
self.ifc.tx_add(struct.pack('<BHLLL', self.MB_RTU_CMD,
self.sensor_list, 0, 0, 0))
self.ifc.tx_add(pdu)
self._finish_send_msg()
self.ifc.tx_log(log_lvl, f'Send Modbus {state}:{self.addr}:')
self.ifc.tx_flush()
def mb_timout_cb(self, exp_cnt):
self.mb_timer.start(self.mb_timeout)
if self.sensor_list != 0x02b0:
self.mb_start_reg += self.mb_incr_reg
if self.mb_start_reg > 0xffff:
self.mb_start_reg = self.mb_start_reg & 0xffff
self.mb_inv_no += 1
logging.info(f"Next Round: inv:{self.mb_inv_no}"
f" reg:{self.mb_start_reg:04x}")
if (self.mb_start_reg & 0xfffc) % 0x80 == 0:
logging.info(f"Scan info: inv:{self.mb_inv_no}"
f" reg:{self.mb_start_reg:04x}")
self._send_modbus_cmd(self.mb_inv_no, Modbus.READ_REGS,
self.mb_start_reg, self.mb_scan_len,
logging.INFO)
else:
self._send_modbus_cmd(Modbus.INV_ADDR, Modbus.READ_REGS, 0x3000,
48, logging.DEBUG)
if 1 == (exp_cnt % 30):
# logging.info("Regular Modbus Status request")
self._send_modbus_cmd(Modbus.INV_ADDR, Modbus.READ_REGS,
0x5000, 8, logging.DEBUG)
self._send_modbus_cmd(Modbus.INV_ADDR, Modbus.READ_REGS,
0x2000, 96, logging.DEBUG)
def at_cmd_forbidden(self, cmd: str, connection: str) -> bool:
return not cmd.startswith(tuple(self.at_acl[connection]['allow'])) or \
cmd.startswith(tuple(self.at_acl[connection]['block']))
async def send_at_cmd(self, at_cmd: str) -> None:
if self.state != State.up:
logger.warning(f'[{self.node_id}] ignore AT+ cmd,'
' as the state is not UP')
return
at_cmd = at_cmd.strip()
if self.at_cmd_forbidden(cmd=at_cmd, connection='mqtt'):
data_json = f'\'{at_cmd}\' is forbidden'
node_id = self.node_id
key = 'at_resp'
logger.info(f'{key}: {data_json}')
await self.mqtt.publish(f'{self.entity_prfx}{node_id}{key}', data_json) # noqa: E501
return
self.forward_at_cmd_resp = False
self._build_header(0x4510)
self.ifc.tx_add(struct.pack(f'<BHLLL{len(at_cmd)}sc', self.AT_CMD,
0x0002, 0, 0, 0,
at_cmd.encode('utf-8'), b'\r'))
self._finish_send_msg()
self.ifc.tx_log(logging.INFO, 'Send AT Command:')
try:
self.ifc.tx_flush()
except Exception:
self.ifc.tx_clear()
def __forward_msg(self):
self.forward(self.ifc.rx_peek(), self.header_len+self.data_len+2)
def __build_model_name(self):
db = self.db
max_pow = db.get_db_value(Register.MAX_DESIGNED_POWER, 0)
rated = db.get_db_value(Register.RATED_POWER, 0)
model = None
if max_pow == 2000:
if rated == 800 or rated == 600:
model = f'TSOL-MS{max_pow}({rated})'
else:
model = f'TSOL-MS{max_pow}'
elif max_pow == 1800 or max_pow == 1600:
model = f'TSOL-MS{max_pow}'
if model:
logger.info(f'Model: {model}')
self.db.set_db_def_value(Register.EQUIPMENT_MODEL, model)
def __process_data(self, ftype, ts):
inv_update = False
msg_type = self.control >> 8
for key, update in self.db.parse(self.ifc.rx_peek(), msg_type, ftype,
self.node_id):
if update:
if key == 'inverter':
inv_update = True
self._set_mqtt_timestamp(key, ts)
self.new_data[key] = True
if inv_update:
self.__build_model_name()
'''
Message handler methods
'''
def msg_unknown(self):
logger.warning(f"Unknow Msg: ID:{int(self.control):#04x}")
self.inc_counter('Unknown_Msg')
self.__forward_msg()
def msg_dev_ind(self):
data = self.ifc.rx_peek()[self.header_len:]
result = struct.unpack_from(self.HDR_FMT, data, 0)
ftype = result[0] # always 2
total = result[1]
tim = result[2]
res = result[3] # always zero
logger.info(f'frame type:{ftype:02x}'
f' timer:{tim:08x}s null:{res}')
if self.time_ofs:
# dt = datetime.fromtimestamp(total + self.time_ofs)
# logger.info(f'ts: {dt.strftime("%Y-%m-%d %H:%M:%S")}')
ts = total + self.time_ofs
else:
ts = None
self.__process_data(ftype, ts)
self.sensor_list = int(self.db.get_db_value(Register.SENSOR_LIST, 0),
16)
self.__forward_msg()
self.__send_ack_rsp(0x1110, ftype)
def msg_data_ind(self):
data = self.ifc.rx_peek()
result = struct.unpack_from('<BHLLLHL', data, self.header_len)
ftype = result[0] # 1 or 0x81
sensor = result[1]
total = result[2]
tim = result[3]
if 1 == ftype:
self.time_ofs = result[4]
unkn = result[5]
cnt = result[6]
if sensor != self.sensor_list:
logger.warning(f'Unexpected Sensor-List:{sensor:04x}'
f' (!={self.sensor_list:04x})')
logger.info(f'ftype:{ftype:02x} timer:{tim:08x}s'
f' ??: {unkn:04x} cnt:{cnt}')
if self.time_ofs:
# dt = datetime.fromtimestamp(total + self.time_ofs)
# logger.info(f'ts: {dt.strftime("%Y-%m-%d %H:%M:%S")}')
ts = total + self.time_ofs
else:
ts = None
self.__process_data(ftype, ts)
self.__forward_msg()
self.__send_ack_rsp(0x1210, ftype)
self.new_state_up()
def msg_sync_start(self):
data = self.ifc.rx_peek()[self.header_len:]
result = struct.unpack_from(self.HDR_FMT, data, 0)
ftype = result[0]
total = result[1]
self.time_ofs = result[3]
dt = datetime.fromtimestamp(total + self.time_ofs)
logger.info(f'ts: {dt.strftime("%Y-%m-%d %H:%M:%S")}')
self.__forward_msg()
self.__send_ack_rsp(0x1310, ftype)
def msg_command_req(self):
data = self.ifc.rx_peek()[self.header_len:
self.header_len+self.data_len]
result = struct.unpack_from('<B', data, 0)
ftype = result[0]
if ftype == self.AT_CMD:
at_cmd = data[15:].decode()
if self.at_cmd_forbidden(cmd=at_cmd, connection='tsun'):
self.inc_counter('AT_Command_Blocked')
return
self.inc_counter('AT_Command')
self.forward_at_cmd_resp = True
elif ftype == self.MB_RTU_CMD:
rstream = self.ifc.remote.stream
if rstream.mb.recv_req(data[15:],
rstream.__forward_msg):
self.inc_counter('Modbus_Command')
else:
logger.error('Invalid Modbus Msg')
self.inc_counter('Invalid_Msg_Format')
return
self.__forward_msg()
def publish_mqtt(self, key, data): # pragma: no cover
asyncio.ensure_future(
self.mqtt.publish(key, data))
def get_cmd_rsp_log_lvl(self) -> int:
ftype = self.ifc.rx_peek()[self.header_len]
if ftype == self.AT_CMD:
if self.forward_at_cmd_resp:
return logging.INFO
return logging.DEBUG
elif ftype == self.MB_RTU_CMD \
and self.server_side:
return self.mb.last_log_lvl
return logging.WARNING
def msg_command_rsp(self):
data = self.ifc.rx_peek()[self.header_len:
self.header_len+self.data_len]
ftype = data[0]
if ftype == self.AT_CMD:
if not self.forward_at_cmd_resp:
data_json = data[14:].decode("utf-8")
node_id = self.node_id
key = 'at_resp'
logger.info(f'{key}: {data_json}')
self.publish_mqtt(f'{self.entity_prfx}{node_id}{key}', data_json) # noqa: E501
return
elif ftype == self.MB_RTU_CMD:
self.__modbus_command_rsp(data)
return
self.__forward_msg()
def __parse_modbus_rsp(self, data):
inv_update = False
self.modbus_elms = 0
for key, update, _ in self.mb.recv_resp(self.db, data[14:]):
self.modbus_elms += 1
if update:
if key == 'inverter':
inv_update = True
self._set_mqtt_timestamp(key, self._timestamp())
self.new_data[key] = True
return inv_update
def __modbus_command_rsp(self, data):
'''precess MODBUS RTU response'''
valid = data[1]
modbus_msg_len = self.data_len - 14
# logger.debug(f'modbus_len:{modbus_msg_len} accepted:{valid}')
if valid == 1 and modbus_msg_len > 4:
# logger.info(f'first byte modbus:{data[14]}')
inv_update = self.__parse_modbus_rsp(data)
self.modbus_elms = 0
if (self.sensor_list != 0x02b0 and data[15] != 0):
logging.info('Valid MODBUS data '
f'(inv:{self.mb_inv_no} '
f'reg: 0x{self.mb.last_reg:04x}):')
hex_dump_memory(logging.INFO, 'Valid MODBUS data '
f'(reg: 0x{self.mb.last_reg:04x}):',
data[14:], modbus_msg_len)
for key, update, _ in self.mb.recv_resp(self.db, data[14:]):
self.modbus_elms += 1
if update:
if key == 'inverter':
inv_update = True
self._set_mqtt_timestamp(key, self._timestamp())
self.new_data[key] = True
if inv_update:
self.__build_model_name()
if self.establish_inv_emu and not self.ifc.remote.stream:
self.establish_emu()
def msg_hbeat_ind(self):
data = self.ifc.rx_peek()[self.header_len:]
result = struct.unpack_from('<B', data, 0)
ftype = result[0]
self.__forward_msg()
self.__send_ack_rsp(0x1710, ftype)
self.new_state_up()
def msg_sync_end(self):
data = self.ifc.rx_peek()[self.header_len:]
result = struct.unpack_from(self.HDR_FMT, data, 0)
ftype = result[0]
total = result[1]
self.time_ofs = result[3]
dt = datetime.fromtimestamp(total + self.time_ofs)
logger.info(f'ts: {dt.strftime("%Y-%m-%d %H:%M:%S")}')
self.__forward_msg()
self.__send_ack_rsp(0x1810, ftype)