Smart Grid – Key Element Smart Grid is a consistently intelligent power supply system that ensures a reliable and efficient power distribution in order to meet the constantly increasing requirements imposed on our power supply. The AMI (Advanced Metering Infrastructure) systems make a major contribution to the implementation of this task. The individual system components from the smart meter and data concentrator to the central IT provide power consumption data of the connected customers as well as information necessary for the network control so that the optimal power supply is guaranteed.
SICAM DC – for a more intelligent Power Supply Network
The SICAM DC data concentrator developed on the basis of experience gained from smart metering and power automation projects enables the implementation of consistent and highly available intelligent power supply networks - the Smart Grids.
To ensure the communication with the connected smart meters, the SICAM DC provides power line communication (PLC) based on PRIME (a) and DLMS/COSEM(b).
The communication from the data concentrator to the central IT can be performed via glass fiber, Ethernet, radio, (e.g. GPRS, WiMax) or B-PLC (Broad Band Power Line Communication). The SICAM DC provides web services for the data transmission.
Easy OperationSIEMENS has found a new approach and offered the SICAM DC for the first time as a data concentrator with display and function keys for local operation. Apart from the display, the integrated web server also simplifies handling. As a result, the fast and easy interaction with the device is possible without additional tools.
(a)PRIME…PoweRline Intelligent Metering Evolution
(b)DLMS/COSEM…Device Language Message Specification/ Companion Specification for Energy Metering
2 x Ethernet LAN 10/100BASE-TX
1 x RS-232, 1 x RS-485
Web services and file transfer for communication with the central IT
Power Line (PLC) signal injection
PRIME Base Node conformity
DLMS/COSEM protocol for communication with smart meters
Local operation via 4 function keys and display (74x56 mm)
Power, ready und error LED, status LEDs of communication interfaces
+/- 2 ppm, maintenance-free, buffered, time synchroni-zation via NTP (Network Time Protocol)
IEC 60870-2-1, IEC 61010, IEC 60255-5, IEC 61000-4
AC 230 V
DC 24 - 60 V
2 galvanically isolated digital inputs (DC 24 - 60 V)
From -40°C to +70°C
Plastic housing for DIN rail mounting
Dimensions: 128 x 124 x 123 mm (W / H / D)
Protection class: IP20, front IP40
Integrated web server for configuration and diagnostics
Data storage via SD memory card (for meter data and device firmware)
Integrated Ethernet switch for the connection of additional devices
The data concentrator is one of the most important components within the AMI system and plays a key role in this context. The following two complementary applications can be roughly identified:
Communication gateway for data from smart me-ters ensures reliable data transmission (power con-sumption etc.) from all connected smart meters to and from the central IT, e.g. Siemens Energy IP.
Intelligent network node provides important data for the network operation and works as an active ele-ment in the network control.
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