RISC Processor

Lightweight &
Fast Kernel

Non-volatile RAM

NAND Flash

Dual Redundancy Capable
 Processor Architecture

The CPU module utilizes a low-power RISC processor for faster execution of instructions. The processor also provides an extensive I/O set that enables many functions to be built into the CPU module.

HUSKY RTU employs a real-time operating system (RTOS) to deliver real-time response required by process requirements. Distinguishing features of RTOS include powerful pre-emptive real-time performance with optimized context switching to deliver real-time guaranteed response times, desired by process control systems. With features like guaranteed interrupt service latency times, small size, highly configurable core and direct access to CPU core makes it an ideal choice of RTOS for HUSKY.

The RTU kernel is built with only those RTOS components that are essential thereby increasing system security, reliability and performance.

RTU 6049-E70 supports two types of non-volatile memories - battery-backed RAM and NAND flash.

The battery-backed RAM is used for storing real-time clock information, retentive memory tags, and events collected by the RTU. Events acquired by the RTU are therefore not lost in case of power failure, and transmitted to the master stations on restoration of power. Flash memory is used by the RTU to store application image, user configuration, programmed logics, log files, and other file-like data (Disturbance Records, Metering Profiles, etc.) it may acquire from other devices.

RTU 6049-E70 supports dual redundancy of the processor modules by having a master-standby mechanism. The two processor modules are installed in separate processor racks which can house the processor and its communication modules. For processor redundancy, the communication modules are duplicated for each CPU, in other words, two identical racks are set-up with the same set of hardware.

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