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There are only three quantities in PLC: switch quantity, analog quantity and pulse quantity. As long as you understand the relationship between the three, you can master PLC skillfully.
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I. Introduction
As the scale of the network continues to expand, the core equipment, power systems, computer rooms, base stations, etc. of the communication network have increased exponentiall...[Details]
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introduction The access control system is a modern security method used to protect the property and personal safety of the people. With the development of society and the advancement of science a...[Details]
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The vacuum pressure calibrator is a commonly used pressure instrument with many advantages such as easy maintenance, good stability, strong durability, and flexible use. It is widely used in many indu...[Details]
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At present, the manufacturing technology of high-brightness blue and pure green semiconductor chips is mainly in the hands of a few companies in Japan, the United States, etc., resulting in relativ...[Details]
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Compared with the previous year, the shipments of smartphones of many brands around the world have declined this year. Among them, Samsung has the largest decline with a decline of 35 million units, ...[Details]
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Power supply ripple testing is a very important parameter in power supply quality testing, but how to accurately measure power supply ripple has become a difficult problem for engineers. How can we o...[Details]
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With the concept of network flattening, converged OLTs with "large capacity, fewer locations, and high switching" performance can be connected to the backbone network through an
MSTP
network . ...[Details]
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Introduction: This paper designs an offshore liquid level measurement system based on AT89S51 single chip microcomputer. The system adopts the principle of segmented capacitance detection to realize ...[Details]
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At present, in the development and design of embedded products, development work is usually carried out on the basis of BSP provided by OS (Operating System) manufacturers; programmers rarely pay a...[Details]
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The leading players in the new car-making forces, NIO and Li Auto, are moving forward in the shadow of Apple. From Ideal One to more diversified product layouts, Ideal has never left Apple. When ...[Details]
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1. What is the buzzer function used for?
A: The buzzer function is an additional function of the multimeter, usually in the 2KΩ range. Generally, when measuring a circuit (or resistor) with a res...[Details]
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The human body has two eyeballs, and their visual ranges are slightly different, which is called visual displacement. After comparing the visual displacement, the brain will make us feel the diff...[Details]
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According to Buenos Aires Economic News Network, Argentina on April 21, "The future is now." A company dedicated to safely implanting chips in people's hands said that this way, people can pay for se...[Details]
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The price of LED bulbs is falling. A year ago, you could buy a Philips 60W dimmable LED bulb to replace an old-fashioned bulb for about $50, but today, you can buy its home-brand 8W, 800-lumen Insigni...[Details]
Power technology
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