21118-4

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21118-4 Application Field and Working Principle

The 21118-4 application field is designed to be used with all types of electronic equipment and related facilities. It is a standard that specifies interface and message formats for two-way communication between electronic equipment. The application field is intended to provide an effective means of exchanging a variety of standard messages between compatible electronic equipment.

This standard is designed to be used as a basis for the exchange of messages between any two compatible electronic systems. The use of 21118-4 ensures compatibility between devices, which can be relied upon when integrating systems across different network architectures.

The working principle of 21118-4 is based on a set of communication rules, which define the format of the messages that will be sent between devices. This set of rules is contained in the protocol and defines the way that devices should send and receive messages. The protocol also specifies the order in which messages should be sent and received, as well as the type of information that can be sent and received.

In order to facilitate the interchange of messages between two different devices, the protocol defines a set of frames which are used to encapsulate the data that will be transferred. These frames are composed of a header, a body, and a tail. The header contains information such as the address of the device that sent the message, the protocol version used, and the length of the frame.

The body of the frame contains the actual data that is to be transferred. This data can be either a command or a response. The command contains instructions on how the device should process the given data, while the response contains the data returned to the sender. Lastly, the tail of the frame contains a checksum, which is used to determine whether an error occurred during the transmission of the message.

The working principle of 21118-4 is based on a set of rules, which describe the format in which messages should be sent and received. These rules are then implemented in a way that allows all compatible devices to communicate in a standard and predictable manner. This ensures that systems can be integrated more easily, with reduced risk of incompatibilities.

21118-4 application field and working principle provides an effective way for electronic equipment and related facilities to communicate with one another. Its use ensures compatibility between devices, providing an efficient and reliable means of communication and interoperability. This standard is designed to ensure safe and secure interactions between devices, and is used in many different types of electronic and communication applications.

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