Smart meter platform passes interoperability tests

The STCOMET SoC has become one of the first two ICs to complete the new G3-PLC certification program announced by the G3-PLC Alliance in September 2014. STCOMET has also recently passed interoperability tests for PRIME 1.4, the latest version of the PRIME Alliance PLC standard used by over four million smart meters in service today. It is already certified to PRIME 1.3.6, and supports S-FSK IEC61 334-5-1, METERS AND MORE, and IEEE 1901.2 PLC standards.

The latest PRIME protocol, version 1.4, which was announced by the PRIME Alliance in May 2014, contains several enhancements including a new robust mode for reliable communication in electrically noisy environments. STCOMET is among the first chipsets to pass interoperability testing, allowing new equipment to benefit from the latest advances while also ensuring compatibility with existing infrastructure.

G3-PLC is a smart-grid communication protocol with features that help ensure efficient use of frequency spectrum and high immunity to noisy channel conditions. STCOMET is among the first two ICs to pass the G3-PLC certification program, enabling smart-meter producers to create high-performing and interoperable products.

Adding further strength to its offer for smart-meter producers, ST already has a fully featured development ecosystem that enables a fast start for any project targeting the major protocol standards in use today including PRIME 1.4 and 1.3.6, G3-PLC, METERS AND MORE, and IEEE 1901.2. The ecosystem provides protocol stacks, reference designs, hardware for prototyping single-phase or three-phase meters, and tools such as metrology-management software and drivers to support software integration.

As a programmable and firmware-upgradeable SoC platform, STCOMET enables customers to use the same design in multiple product variants complying with the different PLC standards used in various markets and territories worldwide. Advanced integration combines a state-of-the-art ARM Cortex-M4 based application processing subsystem, high-accuracy complete metering front-end, on-chip program Flash and RAM, and a dedicated security engine with privacy and anti-hacking protection. The PLC module comprises a programmable DSP (Digital Signal Processing) modem, a complete receive-transmit front end, and a power amplifier with a 28V peak-to-peak output. Extended bandwidth of up to 500kHz encompasses FCC and ARIB frequency ranges used in North America and Japan. In addition, support for remote configuration minimises lifetime ownership costs for operators.