German Wiesemann & Theis plugs, Wiesemann & Theis models, Wiesemann & Theis prices

Wiesemann & Theis plugs are a standardized method for exchanging data between computer components, providing data transmission and control logic in a universal way. From another perspective, if the Mother Board is a city, then the bus is like a public bus in the city, transporting constantly operating bit along fixed routes. Each of these lines can only transmit one bit at a time. Therefore, multiple lines must be used simultaneously to send more data. The amount of data the bus can transmit simultaneously is called the width, measured in bits. The wider 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).

Wiesemann & Theis plug composition

The fieldbus control system consists of three parts: the measurement system, the control system, and the management system, with the hardware and software of the communication part being its most distinctive feature. 1) Fieldbus control system: Its software is an important part of the system. Control system software includes configuration software, maintenance software, simulation software, device software, and monitoring software. First, select the development configuration software and the human-machine interface software for control operations. Through the configuration software, complete the connections between function blocks, select function block parameters, and perform network configuration. During network operation, real-time data collection, processing, and calculation are performed on the system. Optimize control and logical control alarms, monitoring, display, reports, etc. 2) Fieldbus measurement system: Its characteristics include multi-variable high-performance measurement, giving measuring instruments additional functions such as computing capability. Due to the use of digital signals, it has high resolution, high accuracy, strong anti-interference, and anti-distortion capabilities. It also provides status information of instrument equipment, allowing adjustments to the processing process. 3) Device management system: It can provide diagnostic information, management information, device operating status information (including smart instruments), and manufacturer-provided device manufacturing information for the equipment itself and the process. For example, Fisher—Rosemoune Company launched the AMS management system. Installed in the main computer, it performs management functions and can form a comprehensive management system information library for field devices. Based on this, reliability analysis and predictive maintenance of equipment are realized, changing the passive management mode to a predictable management and maintenance mode. The AMS software is based on a T architecture with the field server as the platform, supporting modular, feature-rich application software on the field server to provide users with a graphical interface. 4) Bus system computer service mode: The client/server mode is a popular network computer service mode. The server represents the data source (provider), and the application client represents the data user, which obtains data from the data source and processes it further. The client runs on a PC or workstation. The server runs on a minicomputer or mainframe, using the intelligence, resources, and data of both parties to complete tasks. 5) Database: It can organically and dynamically store large amounts of data and applications, achieving full data sharing and cross-access with high independence. Industrial equipment parameters change continuously during operation, with large data volumes and high real-time requirements for operation and control. Therefore, a distributed and real-time database system capable of mutual access and operation is formed. Mature options available on the market include relational databases such as Oracle, sybas, Informix, and SQL Server; and real-time databases such as Infoplus, PI, and ONSPEC. 6) Network system hardware and software: Network system hardware includes system management hosts, servers, gateways, protocol converters, hubs, user computers, and underlying intelligent instruments. Network system software includes network operating software such as NetWarc, LAN Mangger, and Vines; server operating software such as Lunix, os/2, and Window NT; application software databases, communication protocols, network management protocols, etc.

Wiesemann & Theis plug features

1) Physical characteristics: Physical characteristics, also known as mechanical characteristics, refer to the properties exhibited by components on the bus during physical connection, such as the geometric dimensions, shape, number of pins, and pin arrangement of plugs and sockets. 2) Functional characteristics: Functional characteristics refer to the function of each signal line. For example, the address bus is used to represent address codes. The data bus is used to represent transmitted data, and the control bus represents commands, states, and other operations on the bus. 3) Electrical characteristics: Electrical characteristics refer to the signal direction on each signal line and the voltage level range that indicates a valid signal. Typically, signals sent by the master device (such as CPU) are called output signals (OUT), and signals sent into the master device are called input signals (IN). Typically, for data and address signals, a high level is defined as logic 1 and a low level as logic 0. There is no customary convention for control signals; for example, WE indicates active-low, and Ready indicates active-high. There is no unified specification for the high and low voltage level ranges of different buses; they are usually consistent with TTL. 4) Timing characteristics: Timing characteristics, also known as logical characteristics, refer to when signals on each signal line are valid during bus operations. The correct execution of bus operations is ensured through the agreed-upon timing relationships of these valid signals. To improve computer scalability and the universality of components and devices, in addition to internal chip buses, various components or devices are connected to the bus in a standardized form, and information transmission on the bus is implemented in a standardized manner. These standardized connection forms and operation methods of the bus are collectively referred to as bus standards. Examples include ISA, PCI, and USB bus standards. Correspondingly, buses adopting these standards are referred to as ISA bus, PCI bus, and USB bus.

Wiesemann & Theis plug assembly

The northbridge chip on the motherboard is responsible for connecting components with the highest data throughput, such as memory and graphics cards, and connects to the southbridge chip. The CPU is connected to the northbridge chip via the front-side bus (FSB), and then exchanges data with memory and graphics cards through the northbridge chip. The front-side bus is the primary channel for the CPU to exchange data with the outside world. Therefore, the data transmission capability of the front-side bus has a significant impact on the overall performance of the computer. If the front-side bus is not fast enough, even a powerful CPU cannot significantly improve the overall speed of the computer. The maximum data transfer bandwidth depends on the width of all simultaneously transmitted data and the transmission frequency, i.e., Data Bandwidth = (Bus Frequency × Data Bit Width) ÷ 8. The front-side bus frequencies achievable on PC machines include 266MHz, 333MHz, 400MHz, 533MHz, and 800MHz. A higher front-side bus frequency indicates greater data transmission capability between the CPU and the northbridge chip, allowing the CPU to perform more effectively. CPU technology is developing rapidly, with computing speeds increasing quickly. A sufficiently large front-side bus ensures adequate data supply to the CPU, while a lower front-side bus cannot supply enough data to the CPU, thereby limiting the performance of the CPU and becoming a system bottleneck.

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