Analysis of the advantages of using FOUNDATION fieldbus

Abstract: The advantage analysis information of using FOUNDATION fieldbus is provided by the excellent flowmeter and flowmeter production and quotation manufacturers. As a living technology, FOUNDATION fieldbus can stand out among many technologies and has its own unique advantages, but this advantage is not exactly the same as commercial publicity. The advantages of fieldbus control system are not simply manifested in simplification . More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the details of the article on the advantages of using FOUNDATION fieldbus. As a living technology, FOUNDATION fieldbus can stand out among many technologies and has its own unique advantages, but this advantage is not exactly the same as commercial publicity. The advantages of fieldbus control system are not simply manifested in simplification In terms of construction, advanced control and reduction of maintenance costs in daily production, it is reflected in the powerful self-diagnosis function and equipment management function. Using the self-diagnosis function of the FOUNDATION fieldbus technology can strengthen the equipment maintenance management, make the prospective maintenance of the equipment (pmactivemaintenance) possible, and improve the management level of the equipment; at the same time, using the information advantages of the fieldbus control system can also easily Equipment is managed throughout its life cycle. From the experience of design, construction, debugging and daily maintenance, FOUNDATION fieldbus has the following advantages compared with the traditional control system: 1. It has a broader control vision. The traditional DCS/PLC control system can only Seeing the diagnostic information of the control system, even the smart meters using the HART protocol can only see limited information about the equipment. The FOUNDATION fieldbus system can not only display the internal information of the host controller, but also the information of the fieldbus device. The fieldbus device and the host system become an organic whole, so the FOUNDATION fieldbus has a wider scope than the traditional control system. vision. The traditional control system (DCS/PLC) can judge whether the power supply, CPU, I/O card of the control system has a fault alarm through the system self-diagnosis, but it is powerless to diagnose the field equipment, and only the field equipment passes to the control system. The process variable (PV, ProcessValue) cannot be judged whether the PV data is valid (the reliability of the data). The FOUNDATION fieldbus control system forms a complete and transparent system because the underlying fieldbus devices and the host system are connected as a whole.“information channel”, so all the fieldbus segment device information can be read by the host system. The data communicated between the fieldbus device and the host system not only includes the PV value of the process variable but also the self-diagnosis information. Any fieldbus device will have problems in time. Alarm, the operator can deal with the alarm immediately, reduce the dead angle of equipment monitoring, and make the equipment of the whole plant in a controllable state. 2. Advanced self-diagnosis function The FOUNDATION fieldbus control system has advanced self-diagnosis function. Using the self-diagnosis function of the fieldbus can speed up the judgment of the fault of the fieldbus equipment, thus making the troubleshooting easier. In other words, early detection of potential failures can minimize equipment interruptions and avoid unnecessary downtime, which is the most important and most urgent technology for end users. FOUNDATION Fieldbus devices have extensive self-diagnostic coverage, utilizing additional sensors and electronics and self-diagnosing firmware algorithms for fault detection based on the manufacturer's experience with failure modes. For example, a fieldbus transmitter can detect the failure of an external sensor, such as a thermocouple, and it can also report environmental conditions, such as whether the ambient temperature in which the transmitter is located has exceeded the limit temperature required by the device. alarm, the corresponding inspection or maintenance will be carried out to ensure that the fieldbus device is in the best working condition and“healthy”state. The biggest benefit of self-diagnosis of fieldbus devices is not to tell us which device is broken, but to tell us which device is not broken now and does not need to be checked; in other words, the diagnostic information provided by fieldbus devices can help us make Evaluation is“Equipment now does not need to be fault checked”; The self-diagnosis of equipment can help us save a lot of invalid working time.

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