How bacnet/ip gateway collects data of building centralized control system

BACnet It's a communication protocol for intelligent buildings , that BACnet/IP The gateway is actually BACnet MS/TP The agreement is translated into BACnet/IP agreement , Or the BACnet/IP The agreement is translated into MQTT agreement （ The gateway itself has completed the protocol conversion , No programming ）, It is convenient for users to manage the third party . that BACnet/IP How does the gateway collect data from the building centralized control system ？

First , agreement （ Hardware layer ） All collection is through the connection 485 Or the network port is wired to the gateway , The gateway will collect the protocol , The protocol conversion will be completed in the gateway itself , So you need to configure the parameters of the gateway . First configure the data of the serial port or network port .

such as ,Modbus TCP Equipment of equipment ID The data point configuration box is configured as follows ：

  After the bottom acquisition device is configured , Set the uplink configuration parameters （ That is, the data service part ）, such as ,BL103 Gateway as BACnet/IP The server provides external data . Because the data attributes of various protocols are different Same as , Unify with AV and BV Two object attributes provide external data for the current value . The object instance is used to configure the address item of data point page mapping on the software Modbus Address .

  Finally, check the completion of the data , use KEPServerEX 6 View and distribute data , According to the port and device on the configuration software ID Fill in UDP Ports and local instances , After completion, you can add devices by discovering devices , You can also add your own devices , Tags can be imported automatically , You can create it yourself , Data system One with AV and BV Two object attributes provide external data for the current value . The object instance is used to configure the address item of data point page mapping on the software Modbus Address .