Debug Log - exception when Inverter goes into sleep mode

[ChristophCaina]

Hi, I've noticed some error messages when my inverter is in sleep mode (during night)

2022-05-21 23:15:02: PID: 30903: ##### cron5min.sh started ##### (LV0)
pymodbus.exceptions.ConnectionException: Modbus Error: [Connection] Failed to connect[ModbusTcpClient(192.***.***.***:502)]
raise ConnectionException("Failed to connect[%s]" % (self.__str__()))
File "/usr/local/lib/python3.5/dist-packages/pymodbus/client/sync.py", line 119, in __enter__
self.delegate.__enter__()
File "/var/www/html/openWB/packages/modules/common/modbus.py", line 54, in __enter__
with ModbusClient(ipaddress, port=modbusport) as client:
File "/var/www/html/openWB/modules/bezug_solaredge/solaredge.py", line 27, in update
parser.set_defaults(RUN=lambda args: function(*[getattr(args, argument_name) for argument_name in arg_spec.args]))
File "/var/www/html/openWB/packages/helpermodules/cli/_run_using_positional_cli_args.py", line 19, in <lambda>
args.RUN(args)
File "/var/www/html/openWB/packages/helpermodules/cli/_run_using_positional_cli_args.py", line 34, in run_using_positional_cli_args
run_using_positional_cli_args(update, argv)
File "/var/www/html/openWB/modules/bezug_solaredge/solaredge.py", line 69, in main
importlib.import_module(parsed[0]).main(parsed[1:])
File "/var/www/html/openWB/packages/legacy_run_server.py", line 109, in handle_message
self.__callback(read_all_bytes(connection))
File "/var/www/html/openWB/packages/legacy_run_server.py", line 87, in handle_connection
yield
File "/var/www/html/openWB/packages/legacy_run_server.py", line 48, in redirect_stdout_stderr_exceptions_to_log
Traceback (most recent call last):
2022-05-21 23:13:43: PID: 22992: legacy run server: Unhandled exception
2022-05-21 23:13:43: PID: 22992: pymodbus.client.sync: Connection to (192.***.***.***, 502) failed: [Errno 111] Connection refused
pymodbus.exceptions.ConnectionException: Modbus Error: [Connection] Failed to connect[ModbusTcpClient(192.***.***.***:502)]
raise ConnectionException("Failed to connect[%s]" % (self.__str__()))
File "/usr/local/lib/python3.5/dist-packages/pymodbus/client/sync.py", line 119, in __enter__
self.delegate.__enter__()
File "/var/www/html/openWB/packages/modules/common/modbus.py", line 54, in __enter__
with ModbusClient(ipaddress) as client:
File "/var/www/html/openWB/modules/wr_solaredge/solaredgeall.py", line 98, in update
parser.set_defaults(RUN=lambda args: function(*[getattr(args, argument_name) for argument_name in arg_spec.args]))
File "/var/www/html/openWB/packages/helpermodules/cli/_run_using_positional_cli_args.py", line 19, in <lambda>
args.RUN(args)
File "/var/www/html/openWB/packages/helpermodules/cli/_run_using_positional_cli_args.py", line 34, in run_using_positional_cli_args
run_using_positional_cli_args(update, argv)
File "/var/www/html/openWB/modules/wr_solaredge/solaredgeall.py", line 111, in main
importlib.import_module(parsed[0]).main(parsed[1:])
File "/var/www/html/openWB/packages/legacy_run_server.py", line 109, in handle_message
self.__callback(read_all_bytes(connection))
File "/var/www/html/openWB/packages/legacy_run_server.py", line 87, in handle_connection
yield
File "/var/www/html/openWB/packages/legacy_run_server.py", line 48, in redirect_stdout_stderr_exceptions_to_log
Traceback (most recent call last):
2022-05-21 23:13:42: PID: 22992: legacy run server: Unhandled exception
2022-05-21 23:13:42: PID: 22992: pymodbus.client.sync: Connection to (192.***.***.***, 502) failed: [Errno 111] Connection refused
2022-05-21 23:13:42: PID: 19264: **** FATAL ********************************* (LV0)
2022-05-21 23:13:42: PID: 19264: **** FATAL Regulation loop needs 11 seconds (LV0)
2022-05-21 23:13:42: PID: 19264: **** FATAL ********************************* (LV0)
pymodbus.exceptions.ConnectionException: Modbus Error: [Connection] Failed to connect[ModbusTcpClient(192.***.***.***:502)]
raise ConnectionException("Failed to connect[%s]" % (self.__str__()))
File "/usr/local/lib/python3.5/dist-packages/pymodbus/client/sync.py", line 119, in __enter__
self.delegate.__enter__()
File "/var/www/html/openWB/packages/modules/common/modbus.py", line 54, in __enter__
with ModbusClient(ipaddress, port=modbusport) as client:
File "/var/www/html/openWB/modules/bezug_solaredge/solaredge.py", line 27, in update
parser.set_defaults(RUN=lambda args: function(*[getattr(args, argument_name) for argument_name in arg_spec.args]))
File "/var/www/html/openWB/packages/helpermodules/cli/_run_using_positional_cli_args.py", line 19, in <lambda>
args.RUN(args)
File "/var/www/html/openWB/packages/helpermodules/cli/_run_using_positional_cli_args.py", line 34, in run_using_positional_cli_args
run_using_positional_cli_args(update, argv)
File "/var/www/html/openWB/modules/bezug_solaredge/solaredge.py", line 69, in main
importlib.import_module(parsed[0]).main(parsed[1:])
File "/var/www/html/openWB/packages/legacy_run_server.py", line 109, in handle_message
self.__callback(read_all_bytes(connection))
File "/var/www/html/openWB/packages/legacy_run_server.py", line 87, in handle_connection
yield
File "/var/www/html/openWB/packages/legacy_run_server.py", line 48, in redirect_stdout_stderr_exceptions_to_log
Traceback (most recent call last):
2022-05-21 23:13:39: PID: 22992: legacy run server: Unhandled exception
2022-05-21 23:13:39: PID: 22992: pymodbus.client.sync: Connection to (192.***.***.***, 502) failed: timed out
pymodbus.exceptions.ConnectionException: Modbus Error: [Connection] Failed to connect[ModbusTcpClient(192.***.***.***:502)]
raise ConnectionException("Failed to connect[%s]" % (self.__str__()))
File "/usr/local/lib/python3.5/dist-packages/pymodbus/client/sync.py", line 119, in __enter__
self.delegate.__enter__()
File "/var/www/html/openWB/packages/modules/common/modbus.py", line 54, in __enter__
with ModbusClient(ipaddress) as client:
File "/var/www/html/openWB/modules/wr_solaredge/solaredgeall.py", line 98, in update
parser.set_defaults(RUN=lambda args: function(*[getattr(args, argument_name) for argument_name in arg_spec.args]))
File "/var/www/html/openWB/packages/helpermodules/cli/_run_using_positional_cli_args.py", line 19, in <lambda>
args.RUN(args)
File "/var/www/html/openWB/packages/helpermodules/cli/_run_using_positional_cli_args.py", line 34, in run_using_positional_cli_args
run_using_positional_cli_args(update, argv)
File "/var/www/html/openWB/modules/wr_solaredge/solaredgeall.py", line 111, in main
importlib.import_module(parsed[0]).main(parsed[1:])
File "/var/www/html/openWB/packages/legacy_run_server.py", line 109, in handle_message
self.__callback(read_all_bytes(connection))
File "/var/www/html/openWB/packages/legacy_run_server.py", line 87, in handle_connection
yield
File "/var/www/html/openWB/packages/legacy_run_server.py", line 48, in redirect_stdout_stderr_exceptions_to_log
Traceback (most recent call last):
2022-05-21 23:13:35: PID: 22992: legacy run server: Unhandled exception
2022-05-21 23:13:35: PID: 22992: pymodbus.client.sync: Connection to (192.***.***.***, 502) failed: timed out

since these errors starting in the evening, I think, that this is when the inverter is shutting down;

My Inverter is SolarEdge - and from my previous Monitoring through Modbus, I know that the Inverter is sending its current status

I think, it could be an idea to get the inverter status, if the error is related to the fact that the inverter is sleeping ...

[LKuemmel]

Do you know which register I have to query and how the data is formatted (UINT16, ..)?

[ChristophCaina]

Hi, I've had a look into the specifications provided by solar edge... I think, this is what you're looking for?

https://www.solaredge.com/sites/default/files/sunspec-implementation-technical-note.pdf

[ChristophCaina]

Hi @LKuemmel, a short update:

I've changed my internal setup - and the wallbox is now receiving all relevant information from a modbus-bridge, which can forward the messages from the inverter to multiple clients.

With this setup, I can still see that the openWB is throwing these exceptions ... the last time at around 11:00 PM. Another client (Montoring) is also connected to this bridge - and for this, I haven't recognized such a disconnect. So I am not quite sure, if this is really caused by the inverter - or something else (more within the OpenWB??)