Cannot receive modbus slave telemetry data

Describe the issue I deployed thingsboard and tb-gateway based on docker under win10. Execute under cmd: curl -v -X POST -d "{\"temperature\":1.25}" http://127.0.0.1:8080/api/v1/T2_TEST_TOKEN/telemetry --header "Content-Type:application/ json" Everything works fine and data can be received. However, I use Modbus Slave simulation, unable to receive telemetry data.

Configuration (Attach your configuration file) Notate: Remove Access token from file if you want to attach a tb_gateway.yaml tb_gateway.yaml:

thingsboard: host: 127.0.0.1 port: 1883 remoteShell: false remoteConfiguration: false security: accessToken: "" storage: type: memory read_records_count: 100 max_records_count: 100000

connectors:

name: Modbus Connector type: modbus configuration: modbus.json

ThingsBoard IoT gateway version: 3.0.1

modbus.json:


    "server":{
        "type":"tcp",
        "host":"127.0.0.1", 
        "port":502,
        "timeout":35, 
        "method":"socket",
        "byteOrder":"BIG",
        "devices":[ 
            {
                "unitId":1,
                "deviceName":"testDevice",
                "attributesPollPeriod":5000,
                "timeseriesPollPeriod":5000,
                "sendDataOnlyOnChange":false,
                "attributes":[ 
                    {
                        "byteOrder":"BIG",
                        "tag":"count",
                        "type":"16int", 
                        "functionCode":3,
                        "objectsCount":1,
                        "address":0 
                    }
                ],
                "timeseries":[
                    {
                        "byteOrder":"BIG",
                        "tag":"count",
                        "type":"16int",
                        "functionCode":3,
                        "objectsCount":1,
                        "address":0
                    }
                ]
            },
            {
                "unitId":2,
                "deviceName":"testDevice2",
                "attributesPollPeriod":5000,
                "timeseriesPollPeriod":5000,
                "sendDataOnlyOnChange":false,
                "attributes":[
                    {
                        "byteOrder":"BIG",
                        "tag":"count",
                        "type":"16int",
                        "functionCode":3,
                        "objectsCount":1,
                        "address":0
                    }
                ],
                "timeseries":[
                    {
                        "byteOrder":"BIG",
                        "tag":"count",
                        "type":"16int",
                        "functionCode":3,
                        "objectsCount":1,
                        "address":0
                    }
                ],
                "rpc":[ 
                   {
                        "tag":"setValue", 
                        "type":"16int",
                        "functionCode":6,
                        "objectsCount":1,
                        "address":8 
                    },
                    {
                        "tag":"getValue",
                        "type":"16int",
                        "functionCode":1,
                        "objectsCount":1,
                        "address":9
                    }
                ]
            }
        ]
    }
}`

12 08:22:37" - |WARNING| - [tb_gateway_service.py] - tb_gateway_service - _connect_with_connectors - 473 - Connector implementation not found for Modbus Connector"

""2022-02-12 08:22:37" - |INFO| - [tb_gateway_service.py] - tb_gateway_service - init - 180 - Gateway started."

""2022-02-12 10:19:19" - |WARNING| - [tb_gateway_service.py] - tb_gateway_service - _connect_with_connectors - 473 - Connector implementation not found for Modbus Connector"

""2022-02-12 10:21:20" - |WARNING| - [tb_gateway_service.py] - tb_gateway_service - _connect_with_connectors - 473 - Connector implementation not found for Modbus Connector"

""2022-02-12 10:31:23" - |WARNING| - [tb_gateway_service.py] - tb_gateway_service - _connect_with_connectors - 473 - Connector implementation not found for Modbus Connector"

""2022-02-12 10:32:24" - |WARNING| - [tb_gateway_service.py] - tb_gateway_service - _connect_with_connectors - 473 - Connector implementation not found for Modbus Connector"

But,the modbus poll is ok.

Hi @imbeacon @pystudy123,

I'm exactly in a similar situation now. How did you solve this issue?

The service log inside /home/hostname/thingsboard-gateway/logs shows the following:

""2022-04-07 14:17:14" - |ERROR| - [tb_gateway_service.py] - tb_gateway_service - _connect_with_connectors - 495 - 'wordOrder'"
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/dist-packages/thingsboard_gateway-3.0.1-py3.9.egg/thingsboard_gateway/gateway/tb_gateway_service.py", line 486, in _connect_with_connectors
    connector = self._implemented_connectors[connector_type](self, connector_config["config"][config], connector_type)
  File "/usr/local/lib/python3.9/dist-packages/thingsboard_gateway-3.0.1-py3.9.egg/thingsboard_gateway/connectors/modbus/modbus_connector.py", line 114, in __init__
    self.__load_slaves()
  File "/usr/local/lib/python3.9/dist-packages/thingsboard_gateway-3.0.1-py3.9.egg/thingsboard_gateway/connectors/modbus/modbus_connector.py", line 192, in __load_slaves
    self.__slaves = [
  File "/usr/local/lib/python3.9/dist-packages/thingsboard_gateway-3.0.1-py3.9.egg/thingsboard_gateway/connectors/modbus/modbus_connector.py", line 193, in <listcomp>
    Slave(**{**device, 'connector': self, 'gateway': self.__gateway, 'callback': ModbusConnector.callback}) for
  File "/usr/local/lib/python3.9/dist-packages/thingsboard_gateway-3.0.1-py3.9.egg/thingsboard_gateway/connectors/modbus/slave.py", line 43, in __init__
    'wordOrder': kwargs['wordOrder'],
KeyError: 'wordOrder'

In addition to the Modbus connector, I've got an MQTT connector too, and it is running fine.

UPDATE: The Modbus config file (default) had no "wordOrder": "LITTLE",. I added it to the modbus.json file. The KeyError still persists in the modbus_connector.py file.

Now, I remove the thingsboard-gateway and reinstalled it from source. The last line in terminal after python3 setup.py install says:

Using /usr/local/lib/python3.9/dist-packages
Finished processing dependencies for thingsboard-gateway==3.0.1

After running python3 ./thingsboard_gateway/tb_gateway.py, I get:

ModuleNotFoundError: No module named 'thingsboard_gateway'

What is happening?

thingsboard / thingsboard-gateway

Cannot receive modbus slave telemetry data #744

connectors: