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What are the functions and uses of Ningbo Hongde Technical Research Training Center? It has been widely used. At present, it is mainly
. Used for sequence control
Sequence control is to generate the required switching output based on the current and historical conditions of the input switching value, so that the system can work in a certain sequence. This is the most basic control of system operation. It is also the most commonly used control for discrete production processes.
Commonly used sequence controls include
Random control, which implements control based on randomly occurring conditions
Action control, which implements control based on the completion of the action
Time control, which implements control based on the progress of time. Control
Counting control, control is implemented based on the accumulated count
Hybrid control, including a combination of the above controls
There are also other controls that are different from the above, and so on.
Using sequential control is the original intention and its strength. In the field of sequence control, no other controller can replace it so far.
． Used for process control
Process control requires analog quantities. Analog quantities generally refer to continuously changing quantities, such as current, voltage, temperature, pressure and other physical quantities. The purpose of process control is to generate the required switching quantity or analog quantity output based on the current and historical input conditions of the relevant analog quantity, so that the system working parameters can work according to certain requirements. It is the most commonly used control for continuous production processes.
There are many types of process control.
It is already a trend to be used for process control. Because it is used to realize this control, its price is lower than that of other methods. Moreover, when using it, while performing analog control, it can also easily perform other controls. Coupled with the development and application of various process control modules, as well as the introduction and use of related software, it has become easy to perform various process controls, and its programming is also very simple. Therefore, the share used by some manufacturers for analog control has exceeded that used for sequence control.
． Used for motion control
Motion control mainly refers to the control of the position, speed and acceleration of the work object. It can be a single coordinate, that is, it can control the linear motion of the object, or it can be multi-coordinate, which can control the object's plane, three-dimensional, and even angle transformation movements. Sometimes, multiple objects can be controlled, and the movements of these objects may need to be coordinated.
The CNC technology born in the United States in the last century, referred to as CNC, is a motion control technology that is continuously developed and improved based on the application of electronic computers and this pulse volume. Nowadays, it has developed to a very complete state and has become an important pillar of today's automation technology.
It also has the ability to handle pulse volume. There are pulse signal input points or modules that can receive pulse input. There are pulse signal output points or modules that can output pulse quantities. With the two functions of processing / and the existing data processing and computing capabilities, motion control can be carried out according to the principle of .
The price of using this control is much lower than using it. Moreover, while it performs motion control, it can also perform other controls. Coupled with the development and application of various motion control modules, as well as the launch and use of related software, it has become very easy to perform various motion controls, and its programming can also use languages, which is very simple.
In recent years, there has also been a programmable motion controller specifically used for motion control, namely (MMB) M (M), referred to as M. It also provides a good platform for motion control with higher precision, larger motion stroke, more control coordinates, and more convenient operation. Therefore, motion control can, to a considerable extent, replace the more expensive CNC system.
． Used for information control
Information control is also called data processing, which refers to data collection, storage, retrieval, transformation, transmission and table processing, etc.
With the development of technology, it can not only be used for system work control, but also for system information control.
There are two types for information control: dedicated and dual-purpose.
Dedicated: only used for collecting, processing, storing and transmitting data.
Multi-purpose: While implementing control, information control can also be implemented.
Used as information control, or also as information control, it is not only an important aspect of application, but also the basis of informatization.
． Used for remote control
Remote control refers to the detection and control of the behavior and effects of the remote part of the system. It has a variety of communication interfaces, has strong networking and communication capabilities, and new networking modules and structures are constantly being introduced. Therefore, remote control is very convenient.
and can form a control network. Can communicate, exchange data, and operate with each other. There can be dozens or hundreds of people participating in the communication. Networks can also be interconnected. In this way, more people can participate in communication, so that there are no restrictions.
It can also be connected to form an equipment network with smart sensors and smart execution devices (such as frequency converters). They can also communicate, exchange data, and operate with each other. It can be connected to form a remote control system, and the system range can be as large as tens, hundreds of kilometers or more. This kind of remote control not only improves control capabilities, but also simplifies hardware wiring and maintenance.
It can also be networked and communicated with programmable terminals. Data can be displayed on it, and data can also be written through it, making it an interface for people to operate.
Can communicate with computers and join information networks. Using computers with powerful information processing and information display functions, computer monitoring and data collection of control systems can be realized D(q). At the same time, computers can also be used for programming, monitoring and management.
There is also an Ethernet module that can be used to join the Internet. You can also set your own URL and web page. Some factories that have such control are called transparent factories (). Any computer on the planet with Internet access can directly access it as long as the permissions allow.
The power of remote control is incomparable. Improved control capabilities, expanded control areas and improved control efficiency. In short, remote control has also become an important aspect of applications.
The first three of the five major controls introduced above are to enable different systems to be automated. Information control is to realize informatization, and its purpose is to enable automation to be established on the basis of informatization, to achieve the integration of management and control, and to achieve seamless connection between supply, production and sales to ensure automation benefits.
Remote control enables automation based on information technology to be remote. It can not only realize the summary of information in every corner, ensure the integrity of the information, provide convenience for the comprehensive use of information, but also expand the automation. It can develop from the local equipment level to the global production line level, workshop level, and even the factory level and regional level. Establishing automated factories and digital cities provides possibilities. Obviously, this large-scale, wide-scale automation and informatization will have greater power and greater benefits.
However, with the advancement of automation, informatization and remoteness, the system will become more and more complex. To do this, these controls must also be implemented for control. Otherwise, once the situation changes or a failure occurs, and cannot be responded to in a timely manner, the benefits brought by all these controls will be wiped out.
Exactly, there is really the ability to control these controls. It implements control by processing information and has many self-diagnostic functions. It is possible to make full use of these two advantages to have certain adaptive and self-diagnostic capabilities when implementing the above control. After realizing automation, informatization and remoteness, it is possible to realize intelligence. This is also the inevitable trend in the development of these controls.
Of course, it is not only possible to accomplish so many control methods, but it is a recognized trend to become the protagonist among them. Note: For more detailed course introductions, please log on to our center website or call us at any time.
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