V0701596-001102 ALSTOM 可编程逻辑控制器(Programmable Logic Controller，PLC)

V0701596-001102

What is a concentrator

A concentrator is a central point of connection device that connects a terminal, computer or communication device. It becomes the central point where the cables converge. In a number of terminal dense areas, usually in order to reduce the communication line, the terminal is first connected to the concentrator, and then through the high-speed line to connect the concentrator to the communication controller of the computer, so the concentrator is also an effective device to share the line and improve the utilization of the line.

Two, what is the collector

The data collector has the functions of real-time collection, automatic storage, instant display, instant feedback, automatic processing, and automatic transmission. It provides guarantee for the authenticity, validity, real-time and availability of field data. It has the characteristics of unity, mobility, small size, light weight, high performance, and suitable for hand-held.

The collector is located between the meter and the concentrator, that is, the meter – collector – concentrator.

Three, collector and concentrator functions

The collector has three main functions: collecting meter data (such as peak, valley, and flat data at different times), saving, uploading data through the command of the power carrier response concentrator or transmitting commands to the meter (such as the meter can cut off the user’s power use function).

The collector can also communicate with the hand-copy device on the spot through the infrared communication interface, accept various commands issued by the hand-copy device, and transmit various data recorded by the collector.

Manage 12, 32 or 64 meters by means of communication such as collecting meter pulses or rs232 (different types of collectors can be selected according to the number of meters), and then transmit the data of these meters to the concentrator through the power carrier.

The concentrator is usually one in each transformer area, installed near the transformer, such as the distribution room.