What Is Terminal Hair?

Terminal (Terminal) is also called terminal equipment, which is the most peripheral equipment in the computer network. It is mainly used to input user information and output processing results.

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Terminal (Terminal) is also called terminal equipment, which is the most peripheral equipment in the computer network. It is mainly used for inputting user information and outputting processing results.

In early computer systems, because the host computer was expensive, a host computer (IBM mainframe computer) was usually equipped with multiple terminals. These terminals did not have the computing power. They only assumed the input and output of information. The calculation and processing were performed by the host .

In the era of personal computers,

In market sales theory, it is often used to refer to the last link of market sales. If the process of product from manufacturer to consumer is regarded as a channel, then it is responsible for the forefront of consumers' purchase (usually retail wholesale stores). ), It can be called "terminal", which means that the realization of product value is the link between the consumer and the distributor.

Endpoint is the endpoint user used for and

Common client devices are currently divided into two categories: one is

Terminal address

The address code of the terminal device in the system, referred to as the terminal address.

System broadcast address

An address code that all terminals in the system respond to.

Terminal group address

Terminal group codes with certain same attributes, such as belonging to the same industry, the same substation, and the same line, respond to the same command.

Master station address

Coding of objects (such as workstations, application function modules, etc.) with communication requirements in the master station.

Indicated energy value

Abbreviation for electric energy indicator of electric meter.

Measured point

Refers to the sequential electrical connection point of a measurement device and terminal that can measure a unique set of electrical quantities. When a physically identical electrical connection point is measured by multiple devices, or measured by one device, it is measured in multiple ways When passed to the terminal, according to multiple measurement points, each measurement point has a unique logical positioning code, which is the unique object identifier of the device's parameter configuration and data application in the terminal.

Group total

Refers to the calculated value of a certain kind of electrical quantity of each relevant measurement point according to the set addition or subtraction operation relationship.

Data unit identify

An identifier for one or a group of information types used to represent one or a group of information points.

Information point

Represents object information of parameters or data, such as measurement points, total addition groups, control rounds, DC analog shunts, etc.

Information type

Represents classification information of parameters or data. An information class can be a parameter or data, or a set of parameters or data.

Task

Specifies that the terminal performs the required sequence of operations at a specified time or condition.

Communication flow

Refers to the cumulative number of bytes received and transmitted by the terminal to and from the master station, based on the complete message frames of this data transmission protocol.