DDC controller is a professional building controller which integrates the advantages of many building products and is independent and innovative, and as many as five technologies have been declared national patents. Incredible cost performance, saving 30% ~ 50% investment compared with conventional building controllers. The controller has 12 physical outputs (8DO+4AO) and 16 virtual outputs (intermediate variables), so it can be configured into 28 independent control loops. Through the expansion module, it can be extended to 1 12 physical point.
DDC controller can monitor and control the freezing station, heat exchange equipment, air conditioning system, ventilation system, water supply and drainage system, power distribution system, elevator, lighting system and other equipment in the building. It can be easily networked to realize decentralized control and centralized management. 1 is different from DDC or PLC, which completely develops applications through external programming, and is also different from DDC, which depends on local key setting configuration. Instead, it combines the advantages of both: 80% of building application functions are solidified in the controller, and 20% of special applications are realized by external programming (very simple code), which is convenient and flexible, and the automatic controller can master the application of STEP3 skillfully within one week.
2. Point-to-point communication is realized, that is, in addition to the communication between the upper and lower computers in bus mode, data sharing between DDC and DDC is also realized, which greatly reduces the wiring workload of building automation projects.
3. Open bus protocol, which can interface with any configuration software. BACnet open building automation network protocol is adopted, which supports Ethernet, Modbus +TCP/IP, RS485 and other control buses. Non-monopoly software strategy enables users to choose upper computer software with better cost performance.
4, standard unified expansion module, plug and play, even without setting.
5. Luxurious secondary development programming software. It can also be configured through the keyboard.
6. Save investment by about 30% compared with similar products.
7. You can download the program through the serial port or remotely through the field bus.
8. Step 3-Debug the online simulation software to verify whether the control logic you compiled at will is correct.
9. Universal port technology, AI and DI, AO and DO ports can be converted to each other, and AI ports can also be flexibly selected from PT 1000, NTC or 0- 10VDC and 4 ~ 20mA sensors, which are completely set by software.
10, an intelligent system with good man-machine dialogue interface.
1 1, multi-site connection and scalability. Two-way direct data communication should be realized between the central station and the field controller, and there are no other transit and control links to ensure the consistency of data transmission, reduce the time delay of data transmission and improve the reliability of network communication. Two-way direct data communication is realized between field controllers, and the functions of controllers and equipment operation will not be affected when the central station stops working.
12, convenient and easy to use. The central station adopts the all-Chinese window platform, and runs the daily control, monitoring and scheduling management of building equipment management with Chinese dynamic graphical interface, and collects data for archiving, statistics and report management. The system interface should be easy to operate, easy to learn and intuitive.