ABB UNS0881a-P,V1 3BHB006338R0001 Controller board driver interface card
Brand ABB color standard Application Industrial height 128mm rated current 218mA
Protection Level IP45 Suitable for motor power 168KW Application Site Power Industry BOM Number GJR2391500R1220 Power industry HIEE401782R0001 Part number UNS0881a-P,V1 3BHB006338R0001
Applicable pipe 2 Whether imported is weighing 1.68 kg can be sold nationwide
ABB UNS0881a-P,V1 3BHB006338R0001 Controller board driver interface card
The modern production demand makes the process control to the requirements of multi-input and multi-output development, and the control decentralization of modern industry and the concentration of management continue to improve, distributed control system (dcs) came into being. In the current situation that foreign fieldbus equipment and DCS are very expensive, the transformation of the distributed system of state-owned enterprises can only take the road with its own characteristics. In view of the above problems and application requirements, this paper uses intelligent instruments as field control equipment, studies the composition of DCS and related technologies in its application, and puts forward a design scheme of multi-intelligent instrument control system, builds a multi-intelligent instrument DCS experimental system, and designs the controlled object model and computer monitoring system software considering the actual needs of the experiment. The experimental system is composed of PC, intelligent instrument, serial communication interface card, RS-485 bus and controlled object model system.
1. Architecture of multi-intelligent instrument control system
1.1 General DCS architecture
Since the mid-1970s, the development of process computer control system has entered the development period of distributed control system (DCS) characterized by 4C technology (computer, communication, control, CRT display technology). From the system structure analysis DCS can be divided into three basic parts: decentralized process control device part, centralized operation and management system part and communication system part. The relationship between the three parts is shown in Figure 1.
Functional stratification is the system characteristic of DCS, which fully reflects the characteristics of decentralized control and centralized management of distributed control system. According to the method of function stratification, the multi-intelligent instrument control system can be divided into field control station, process control station, control level and production management station.
ABB UNS0881a-P,V1 3BHB006338R0001 Controller board driver interface card
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