Description:

Concentrator “Mercury 225″ is a device for data collection on low voltage electric lines. It is designed for reception, accumulation and storage of data on consumed energy, transmitted from subscribers’ energy meters, which are provided with built-in PLC–modems, through distributive one-phase or three-phase network of alternating current 220/380V. Interface: RS485, RS232

Functions:

Concentrator “Mercury 225″ is a device for data collection on low voltage electric lines. It is designed for reception, accumulation and storage of data on consumed energy, transmitted from subscribers’ energy meters “Mercury”, which are provided with built-in PLC–modems, through distributive one-phase or three-phase network of alternating current 220/380V with the consequent transmission of the read data through standard digital lines of communication (RS-232 or RS-485).

Concentrator provides:

• Reception, processing and storage of data on energy consumption from 1008 meters;
• Transmission of individual and group commands to the meters;
• Synchronization of internal clock of multi-tariff meters;
• If required, tariff zones switching in the meters;
• Formation of data on emergency-technical condition of the system;
• Connection of GSM and radio-modem, network adapters ethernet;

General provisions:

On one side the concentrator is connected to one-phase or three-phase network through the jack of PLC-interface and on the other side – to the serial port of either PC or industrial controller.
After the required configuration and internal clock setting, in the system the concentrator starts performing part of a receiver and accumulator of the packets, come to it from meters on phase cables of the power line.
To store the received packets, there are realized two buffer accumulators: so called “Buffer of the last packets” and so called “Buffer of the last months”. Number of “seats” in each of them is equal to the number of the meters supported by the concentrator. Besides, the concentrator has so called “transparent” operation mode, in which the received from the meter packet, apart from storing in the said above buffers, goes immediately to the transmitter buffer of the serial port.
Configuration of the concentrator is carried out with the help of program “BMonitor.exe” and consists in setting the size of the supported by it network and operation mode choice (“transparent” / “opaque”).
At the network size in 16 devices the packets from each of them go to the concentrator with interval of about 3 minutes. At the network size in 1008 devices this interval makes about 14 minutes.