TRICONEX 3721 Redundant Mechanism Protection System
Developed in the 1960s, it mainly focuses on pneumatic and relay components. By the 1970s, simple relay systems had evolved into microprocessors and programmable controllers (PLCs or PCs), and single loop systems had evolved into redundant and fault-tolerant systems. The SIL3 level is a high level in the petrochemical industry. The new level of products meets the requirements of SIL4. The Triple Modular Redundancy (TMR) mechanism, which emerged in the aviation industry in the 1970s, has been used in systems. In the 1990s, some large foreign companies launched systems with triple redundancy (TMR) and redundant error functions, as shown in Figure 14. Such as Woodward’s Micro Net TMR system, Triconex’s Tricon system, Honeywell’s FSC system, ICS Triplex’s Regent system, etc. At present, the copyright of the Control Engineering Network is owned by both Triple Redundancy and Double Redundancy. Recently, there has been the emergence of quadruple redundancy (QMR, 2oo4D) technology and software redundancy technology for CPUs, such as HIMA’s H41q/H51q system. Fault tolerance mechanism refers to the ability of a system to continue operating when one or more components or components fail. A fault-tolerant system can detect faults and eliminate their impact. The new SIS (such as TRICON) can achieve fault tolerance characteristics for all components and some related equipment failures in the system. The main means of fault tolerance are redundancy, self diagnosis, and online maintenance and repair.
There is now a concept of flexible configuration. HIMA’s HIMax product supports the xMR architecture, which means that X=1 Control Engineering Network is copyrighted. 2, 3, and 4 respectively constitute non redundant, double, triple, and quadruple redundancy.
According to empirical statistics, the proportion of system failures in the instrument system SIS is 40% for sensors, 10% for controllers, and 50% for actuators. Therefore, the reliability of the executing agency is crucial. Subsequently, a dual electromagnetic valve, shut-off valve, and online partial stroke test (PST, Partial Stroke Test) system were developed.
☣ About supplier
Xiamen Xingruijia Import and Export Co., Ltd.’s product content includes distributed control systems (DCS), programmable logic controllers (PLC), MOTOROLA MVME industrial modules, industrial control communication converters (Anybus), remote output/input modules (RTU), industrial computers (IPC), industrial low-frequency screens (IPC), human-machine interface SCSI (50, 68, 80Pin), AnyBus (Gateway), which has become a global sales enterprise for industrial automation spare parts and components
Our company is able to directly purchase from overseas, provide equipment and spare parts from different countries and manufacturers, solve your problems in searching for multiple places or concerns about product quality issues, etc. We have a great advantage in price, and provide detailed product information. We warmly welcome you to call or use email to inquire
management idea
We adhere to the business philosophy of “professionalism, integrity, innovation, cooperation, and win-win”, constantly exploring new products, providing customers with high-quality services, making them more satisfied, and constantly expanding new business scope
Featured services
The company has a leading advantage in discontinuing control system components. We have a large inventory and surplus of control system components, as well as some hardware for the discontinued control system. We have also released many new hardware and products to support your existing control system or apply new control technologies. The discontinued “DCS system spare parts, PLC module spare parts,” complete machine and accessory series have a strong advantage. As long as you need PLC products, we can help you find them. The company has a great price advantage
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We advocate the corporate spirit of “diligence, pragmatism, exploration, and development”, and build a positive, united, collaborative, innovative and enterprising corporate culture and talent environment within the enterprise
Advantage brands
ABB Robots, FANUC Robots, YASKAWA Robots, KUKA Robots, Mitsubishi Robots, OTC Robots, Panasonic Robots, MOTOMAN Robots, etc
Allen Bradley Automation is a global strategic brand of Rockwell Automation, providing customers with a complete set of components, products, control and information platforms, as well as support services and manufacturing solutions.
Allen Bradley’s products are spread across various industrial fields, such as food processing, forestry products, plastics, automobiles, semiconductors, subways
Pharmaceuticals, tires, metallurgy, material processing, mining, water treatment, electricity and energy, printing, and oil and gas, among others
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✦ About FAQ
Q: Are you a trading company or a manufacturer?
A: Yes, we are a trading company.
Q: Do you have inventory or need to buy from other suppliers?
A: We keep a lot of inventory to sell, and we have our own warehouse.
Q: Do you provide 100% original and new products?
A: Of course. No plagiarism, no counterfeiting, no renovation! Original only! ! !
Q: Do you sell outdated products? Even a very old product?
A: If there is a new model that needs to be replaced, we will recommend you to use the new model;
if it is not easy to replace, we will help check the old one in good condition.
If used or other conditions, we will tell you the truth.
Q: How long is your delivery time?
A: If the goods are in stock, it usually takes 2-3 working days. If the quantity is large,
it will take 5-7 working days after receiving the payment.
If it is not a normal product, it always takes 3-4 weeks or 6-8 weeks to order.
Notice before purchase
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. Therefore, if the product manufacturer suspends production, upgrades without 3C, increases prices, or is restricted, resulting in the inability to place orders, the order will be cancelled and the seller will not be liable for any related legal liabilities;
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