本地编译运行Thingsboard-gateway之python版本——modbus数据采集

1、ideal 我用的是2020版本，这个关系不大，随便
Thingsboard-gateway之python版本源码拉取（老版本是java写的，新版都是python写的）
地址：git clone https://github.com/thingsboard/thingsboard-gateway.git

python        尽量选取3.9以上，我用的python3.11
地址：Welcome to Python.org

2、在正式开始运行前，先配置好环境变量，主要是python

3、安装python的虚拟环境，以便隔离

# 安装virtualenv

pip install virtualenv

激活virtualenv：

在.\venv\Scripts目录下运行activate，类似下面的进入虚拟环境里

同时按照依赖pip install -r requirements.txt

4、到 thingsboard_gateway 目录下运行python tb_gateway.py

cd到thingsboard_gateway目录，再输入python tb_gateway.py回车执行命令

如遇错误ModuleNotFoundError: No module named 'thingsboard_gateway'

pip install  thingsboard_gateway 

启动出现Cannot load GRPC connector! 错误，目前先不管这个

启动后出现下面错误应该是读取的地址没有，增加相应的地址就可以了

modbus_connector 625 - Reading failed for device Temp Sensor function code 4 address 18 unit id 1

pymodbus.exceptions.ModbusIOException: Modbus Error: [Input/Output] [WinError 10054] 远程主机强迫关闭了一个现有的连接

运行正常后如下

5、配置modbus slave

正常后有下面的遥感数据

6、附tb_gateway.json文件

{"thingsboard": {"host": "localhost","port": 1883,"remoteShell": true,"remoteConfiguration": true,"latencyDebugMode": false,"statistics": {"enable": true,"statsSendPeriodInSeconds": 60,"configuration": null,"commands": []},"deviceFiltering": {"enable": false,"filterFile": "list.json"},"maxPayloadSizeBytes": 8196,"minPackSendDelayMS": 50,"minPackSizeToSend": 500,"checkConnectorsConfigurationInSeconds": 60,"handleDeviceRenaming": true,"security": {"type": "accessToken","accessToken": "fUe9wLhHKikn2rZayxxq"},"qos": 1,"checkingDeviceActivity": {"checkDeviceInactivity": false,"inactivityTimeoutSeconds": 200,"inactivityCheckPeriodSeconds": 500},"rateLimits": "DEFAULT_TELEMETRY_RATE_LIMIT","dpRateLimits": "DEFAULT_TELEMETRY_DP_RATE_LIMIT","messagesRateLimits": "DEFAULT_MESSAGES_RATE_LIMIT","deviceMessagesRateLimits": "DEFAULT_MESSAGES_RATE_LIMIT","deviceRateLimits": "DEFAULT_TELEMETRY_RATE_LIMIT","deviceDpRateLimits": "DEFAULT_TELEMETRY_DP_RATE_LIMIT"},"storage": {"type": "memory","read_records_count": 100,"max_records_count": 100000,"data_folder_path": "./data/","max_file_count": 10,"max_read_records_count": 10,"max_records_per_file": 10000,"data_file_path": "./data/data.db","messages_ttl_check_in_hours": 1,"messages_ttl_in_days": 7},"grpc": {"enabled": true,"serverPort": 9595,"keepAliveTimeMs": 10001,"keepAliveTimeoutMs": 5000,"keepAlivePermitWithoutCalls": true,"maxPingsWithoutData": 0,"minTimeBetweenPingsMs": 10000,"minPingIntervalWithoutDataMs": 5000},"connectors": [{"type": "modbus","name": "test","configuration": "test.json"}]
}

6、附test.json文件

{"master": {"slaves": [{"host": "127.0.0.1","port": 502,"type": "tcp","method": "socket","timeout": 35,"byteOrder": "LITTLE","wordOrder": "LITTLE","retries": true,"retryOnEmpty": true,"retryOnInvalid": true,"pollPeriod": 5000,"unitId": 1,"deviceName": "Temp Sensor","sendDataOnlyOnChange": true,"connectAttemptTimeMs": 5000,"connectAttemptCount": 5,"waitAfterFailedAttemptsMs": 300000,"attributes": [{"tag": "string_read","type": "string","functionCode": 4,"objectsCount": 4,"address": 1},{"tag": "bits_read","type": "bits","functionCode": 4,"objectsCount": 1,"address": 5},{"tag": "16int_read","type": "16int","functionCode": 4,"objectsCount": 1,"address": 7},{"tag": "32int_read_divider","type": "32int","functionCode": 4,"objectsCount": 2,"address": 8,"divider": 10},{"tag": "32int_read","type": "32int","functionCode": 4,"objectsCount": 2,"address": 11},{"tag": "64int_read","type": "64int","functionCode": 4,"objectsCount": 4,"address": 13}],"timeseries": [{"tag": "16uint_read","type": "16uint","functionCode": 4,"objectsCount": 2,"address": 18},{"tag": "32uint_read","type": "32uint","functionCode": 4,"objectsCount": 4,"address": 20},{"tag": "64uint_read","type": "64uint","functionCode": 4,"objectsCount": 1,"address": 24},{"tag": "16float_read","type": "16float","functionCode": 4,"objectsCount": 1,"address": 25},{"tag": "32float_read","type": "32float","functionCode": 4,"objectsCount": 2,"address": 26},{"tag": "64float_read","type": "64float","functionCode": 4,"objectsCount": 4,"address": 28}],"attributeUpdates": [{"tag": "shared_attribute_write","type": "32int","functionCode": 6,"objectsCount": 2,"address": 29}],"rpc": [{"tag": "setValue","type": "bits","functionCode": 5,"objectsCount": 1,"address": 31},{"tag": "getValue","type": "bits","functionCode": 1,"objectsCount": 1,"address": 31},{"tag": "setCPUFanSpeed","type": "32int","functionCode": 16,"objectsCount": 2,"address": 33},{"tag": "getCPULoad","type": "32int","functionCode": 4,"objectsCount": 2,"address": 35}]}]},"slave": {"type": "tcp","host": "127.0.0.1","port": 502,"method": "socket","deviceName": "Modbus Slave Example","deviceType": "default","pollPeriod": 5000,"sendDataToThingsBoard": false,"byteOrder": "LITTLE","wordOrder": "LITTLE","unitId": 0,"values": {"holding_registers": {"attributes": [{"address": 1,"type": "string","tag": "sm","objectsCount": 1,"value": "ON"}],"timeseries": [{"address": 2,"type": "16int","tag": "smm","objectsCount": 1,"value": 12334}],"attributeUpdates": [{"tag": "shared_attribute_write","type": "32int","functionCode": 6,"objectsCount": 2,"address": 29,"value": 1243}],"rpc": [{"tag": "setValue","type": "16int","functionCode": 5,"objectsCount": 1,"address": 31,"value": 22}]},"coils_initializer": {"attributes": [{"address": 5,"type": "8int","tag": "coil","objectsCount": 1,"value": 0}],"timeseries": [],"attributeUpdates": [],"rpc": []}}},"id": "d6e9ec17-f8ef-46f9-ab4b-7ec671ae01df"
}