edgex接入modbus设备
本文介绍edgex利用modbus-tcp协议接入模拟设备，利用kuiper根据设备名称进行筛选，然后发布到mqtt server的过程
1.下载 ModbusPal并配置
ModbusPal 下载连接https://sourceforge.net/p/modbuspal/discussion/899955/thread/72cf35ee/cd1f/attachment/ModbusPal.jarz
添加模拟设备
添加寄存器地址及字段
添加ModbusPal支持的值自动生成器，它可以绑定到寄存器:
运行模拟器
2.添加Device Profile及设备
内容如下，源文件为yml格式，此处只能用bash
startingAddress该属性定义Modbus设备从0开始的startingAddress。例如，GET命令从Modbus地址4004请求数据以获取温度数据，因此起始寄存器地址应该是4003。
RAW_TYPE:这个属性定义了从Modbus设备读取的二进制数据，然后我们可以使用值类型来指示用户想要接收的数据类型。
dbtimestamp: created: 1649747852301 modified: 1649747852301id: e37ae456-dd0b-40ba-bff8-f17be919cc2bname: Hbfec-Temperature-Sensormanufacturer: Audon Electronicsdescription: The NANO_TEMP is a Ethernet Thermometer measuring from -55°C to 125°C with a web interface and Modbus TCP communications.model: Temperaturelabels: [Web, Modbus TCP, SNMP]deviceResources:- description: Lower alarm threshold of the temperature name: ThermostatL isHidden: true tag: "" properties: valueType: Float32 readWrite: RW units: "" minimum: "" maximum: "" defaultValue: "" mask: "" shift: "" scale: "0.1" offset: "" base: "" assertion: "" mediaType: "" attributes: primaryTable: HOLDING_REGISTERS rawType: Int16 startingAddress: 3999- description: Upper alarm threshold of the temperature name: ThermostatH isHidden: true tag: "" properties: valueType: Float32 readWrite: RW units: "" minimum: "" maximum: "" defaultValue: "" mask: "" shift: "" scale: "0.1" offset: "" base: "" assertion: "" mediaType: "" attributes: primaryTable: HOLDING_REGISTERS rawType: Int16 startingAddress: 4000- description: 1 - OFF (disabled), 2 - Lower, 3 - Higher, 4 - Lower or Higher name: AlarmMode isHidden: true tag: "" properties: valueType: Int16 readWrite: RW units: "" minimum: "" maximum: "" defaultValue: "" mask: "" shift: "" scale: "" offset: "" base: "" assertion: "" mediaType: "" attributes: primaryTable: HOLDING_REGISTERS startingAddress: 4001- description: Temperature x 10 (np. 10,5 st.C to 105) name: Temperature isHidden: false tag: "" properties: valueType: Float32 readWrite: R units: "" minimum: "" maximum: "" defaultValue: "" mask: "" shift: "" scale: "0.1" offset: "" base: "" assertion: "" mediaType: "" attributes: primaryTable: HOLDING_REGISTERS rawType: Int16 startingAddress: 4003deviceCommands:- name: AlarmThreshold isHidden: false readWrite: RW resourceOperations: - deviceResource: ThermostatL defaultValue: "" mappings: {} - deviceResource: ThermostatH defaultValue: "" mappings: {}- name: AlarmMode isHidden: false readWrite: RW resourceOperations: - deviceResource: AlarmMode defaultValue: "" mappings: "1": "OFF" "2": Lower "3": Higher "4": Lower or Higher添加设备
选择device-modbus服务
选择刚才添加的device profile
添加设备，给设备取一个名字
添加自动采集的数据属性及时间间隔
添加设备地址信息
楼主是在win10的宿主机上跑的虚拟机，在虚拟机里利用docker-compose安装的edgex套件，我的宿主机ip是192.168.100.100，虚拟机网络模式为NAT，虚拟机的IP是192.168.32.16，这里address的地址应该填写宿主机ip192.168.100.100而不是192.168.32.2.
3.根据kuiper-manager设置kuiper
创建kerper服务 ，这里的ip地址为docker为kuiper服务分配的ip地址
创建流，流类型选择edgex总线
创建规则，筛选设备名为modbus的数据
slink设置为mqtt server
获取数据
利用MQTT.fx连接上mqtt server
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