Maxim smart grid platform blocks cyber attacks
Maxim Integrated has introduced as a smart meter system-on-a-chip (SoC) device with multiple layers of security to protect against energy theft and cyber attacks on the grid.
Called Zeus, the SoC device has a built-in cryptographic module to secure communications and a secure bootloader to prevent unauthorised firmware modification.
It also integrates tamper detection so that attempts to physically attack the meter will be detected, recorded, and reported.
For the metering function the chip multiple ADC channels each runninfg at 10ksample/s, offering 0.1% accuracy over a 5,000:1 dynamic range.
The chip’s processors are a 120MHz ARM Cortex-M3 application processor and a 40MHz, 32-bit MAXQ30 microcontroller with DSP support for the metering function.
“Multicore architecture supports WELMEC separation of legally relevant and irrelevant functions to ease validation,” said the supplier.
“By combining metrology, security and communication, we provide a platform for any embedded smart grid equipment that needs to measure, to communicate, and to do it securely,” said Kris Ardis, business director for smart grid products at Maxim Integrated.
The Zeus platform includes the MAX71616, MAX71617, MAX71636, and MAX71637.