Read this in other languages: English, 中文.

HarnsGateway is used to connect industrial equipment.
It can be installed on embedded devices to as edge industrial gateway.
It can also be run as a service on the edge IoT platform to as soft gateway.

• Collect equipment data from south end
  Supported protocol list:

1. ModbusTcp ModbusRtu ModbusRtuOverTcp
2. S71500
3. OpcUA

• Control equipment from north end input Supported protocol list:

1. ModbusTcp ModbusRtu ModbusRtuOverTcp
2. S71500

• Edge computing

1. git clone https://github.com/harnsFactory/harnsgateway.git
2. cd harnsgateway
3. make
4. cd harnsgateway/_output/bin/

1. QuickStart
   ./gateway --mqtt-broker-urls=127.0.0.1:1883 &
2. Systemd

example Connect Modbus device

1. Started modbus simulator(ModSim32) And update some parameters: deviceId = 1,functionCode = 3,And set first address value = 188.
   stepOne
   Then start service on port 502.
2. Create modbus( api doc )device in harnsGateway.The device id property userd in MQTT topic.
   stepTow.png
3. Get gateway meta information( api doc ).The gateway id property used in MQTT topic.
   stepThree.png
4. Subscript MQTT topic.
   stepFour.png
   Topic is 'data/{gatewayId}/v1/{deviceId}'.
5. Delete the Device.