German MEDAV plug, MEDAV model, MEDAV price

MEDAV plug is a standardized method for exchanging data (data) between computer components, providing data transmission and control logic for various components in a universal way. From another perspective, if the motherboard (Mother Board) is a city, then the bus is like a public bus (bus) in the city, capable of transmitting bits (bit) that operate back and forth along fixed routes. These lines can only be responsible for transmitting one bit at a time. Therefore, multiple lines must be used simultaneously to send more data, and the number of data bits that the bus can transmit simultaneously is called width (width), measured in bits; the greater the bus width, the better the transmission performance. The bus bandwidth (i.e., the total amount of data that can be transmitted per unit time) is: Bus Bandwidth = Frequency × Width (Bytes/sec).

MEDAV Plug Introduction

Fieldbus technology represents the intersection and integration of control, computer, and communication technologies, covering nearly all continuous and discrete industrial sectors, such as process automation, manufacturing and machining automation, building automation, and home automation. The development of fieldbus technology is reflected in two aspects: one is the continuous development and improvement of low-speed fieldbuses; the other is the advancement of high-speed fieldbus technologies. Fieldbus products are primarily low-speed bus products, applied in areas with lower operating speeds, where network performance requirements are not particularly high. From practical application perspectives, most fieldbuses can effectively implement process control with lower speed requirements. Therefore, in control domains with lower speed requirements, it is difficult for any single entity to unify the entire market. Since the FF Foundation has gathered most of the world's major automation instrument manufacturers, its global influence is increasing day by day. However, its marketing efforts in China seem insufficient, and its market share is not very high. LonWorks has formed a comprehensive system of division of labor and cooperation, achieving some substantive progress domestically. In areas such as building automation, home automation, and smart communication products, LonWorks possesses unique advantages. In the discrete manufacturing and machining sector, due to industry application characteristics and historical reasons, Profibus and CAN have established their own advantages in this field and possess strong competitiveness. Domestic manufacturers are relatively small in scale and have weaker R&D capabilities, relying more on support from technology suppliers. They are thus more susceptible to the level of support and marketing efforts provided by fieldbus technology suppliers (such as chip manufacturers) in the domestic market. Moreover, another point that cannot be overlooked is the degree of support for bus devices offered by the chosen host computer systems, such as configuration software, when constructing automation management systems. Some monitoring and configuration software packages, such as Realinfo monitoring configuration software or InTouch, provide good support for mainstream bus devices like Lonworks, PROFIBUS, and CAN. They communicate and acquire data via DDE, OPC, or direct connection methods. This facilitates user selection, whereas some configuration software supports fewer types, thereby narrowing the range of choices available to users.

MEDAV Plug Material

The choice of material is based on a comprehensive consideration of processability, product applicability, and strength properties; the cost of electronic connectors varies depending on material prices, ease of processing, and production efficiency; electronic connector materials mainly include insulator materials (plastic raw materials) and conductor materials (phosphor bronze, brass); common engineering plastics for electronic connectors include: LCP, NYLON, PBT. 1) LCP: It has a small linear expansion coefficient, low injection molding shrinkage rate, outstanding strength and elastic modulus, excellent heat resistance, and a high load deformation temperature, with some reaching above 340 degrees. LCP also has excellent chemical resistance and airtightness, so it is generally the first choice for connectors, especially those requiring SMT, such as eg:MINI PCI EXPRESS; DDR. 2) NYLON: Lower cost, very high tensile strength, outstanding wear resistance and self-lubricity, good fluidity, beneficial for thin-wall molding, but severe shrinkage, prone to burrs, strict baking before molding is required to prevent hydrolysis. General connectors, especially DIP, mostly use NYLON material, such as eg:PCI 120P; PCI EXPRESS. 3) PBT: Plug-in electronic connectors, low cost, high strength, wear-resistant, but poor moldability, severe shrinkage. Due to the lower melting temperature, plastic melting phenomena may occur during wave soldering.

MEDAV Plug Selection Factors

PC communicates with smart devices mostly via RS232, RS485, Ethernet, etc., mainly depending on the device's interface specifications. However, RS232 and RS485 only represent the physical media layer and link layer of communication. To achieve bidirectional data access, one must write communication applications themselves, but such programs mostly do not comply with ISO/OSI standards, can only achieve relatively single functions, are suitable for single device types, and the program lacks universality. In a device network connected by RS232 or RS485 devices, if the number of devices exceeds 2, RS485 must be used as the communication medium. For devices in an RS485 network to exchange information, it can only be achieved through a "Master (Master)" device relay. This master device is usually PC, and only one master device is allowed in such a device network, with the rest being Slave (Slave) devices. Fieldbus technology is based on the ISO/OSI model, has a complete software support system, and can solve problems such as bus control, conflict detection, and link maintenance.

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