1756-IF16H

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[] Programmable Controller +++++++++ Distributed control system []
Resource subnet: It is the user-oriented part of the computer network. It is responsible for the application-oriented data processing of the entire network. Its main body is connected to the computer All host computers in the network, as well as user-oriented external devices, software and data that can be shared by these computers.
Communication subnet: It is the part of the computer network responsible for data communication. The communication transmission medium can be twisted pairs, coaxial cables, radio communications, microwaves, optical fibers, etc.
Communication protocol: In order to make the communication between computers in the network reliable and effective, the rules and agreements that both communicating parties must abide by are called communication protocols.
Resource sharing: including hardware and software resources. Hardware resources such as high-performance processing components with special functions, high-performance input and output devices (laser printers, plotters, etc.) and large-capacity auxiliary storage devices (such as tape drives, large-capacity hard drives, etc.), their sharing can save Hardware overhead. Software resources such as software and data.
Local Area Network: It is a communication system that allows several independent computers to communicate directly within an appropriate range and at an appropriate transmission rate. Generally, networks can be classified according to their scale. Usually, most of the ones we use in the office or at home are local area networks. This type of network feels faster because the distance between computers is short and it does not need to go through too many network devices. But the scope of application is therefore smaller.
Wide Area Network: As opposed to LAN, anything beyond the scope of LAN can be counted as WAN.
Metropolitan area network: A network that operates within a city, or that physically uses the city's basic telecommunications infrastructure (such as an underground cable system), is sometimes distinguished from it and is called a metropolitan area network.
Network architecture: refers to the overall design of a communication system, which provides standards for network hardware, software, protocols, access control and topology. It widely adopts the Open System Interconnection (-) reference model proposed by the International Organization for Standardization in 2006. The reference model describes the structure of the network using seven layers: physical layer, data link layer, network layer, transport layer, conversation layer, presentation layer and application layer. Its specifications are open to all manufacturers and have the ability to guide international network structures and The role of open systems trends. It directly affects the performance of buses, interfaces and networks. Common network architectures include Ethernet, Token Ring and Fast Ethernet. From a network interconnection perspective, the key elements of network architecture are protocols and topology.
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Concentration Meter< br/> Schneider proximity switch
Relay R
Rexroth servo drive 3R
Eaton battery
Grating ruler reading head
Module
Module
Module< br/> Driver
Module
Limit switch
B/board
B module
AC contactor
R controller
Module
Teaching pendant