HIMA F-CPU stands for HIMA Fault Tolerant Central Processing Unit. It is a safety-related CPU module used in safety instrumented systems (SIS) for critical applications in various industries, including:
- Chemical and petrochemical plants
- Power plants
- Nuclear power plants
- Oil and gas refineries
- Steel mills
HIMA F-CPUs are designed to meet the highest safety standards, such as SIL 3 according to IEC 61508 and Category 4 according to EN 954-1. They achieve this level of safety through features such as:
- Redundant architecture: The CPU module has two independent processing cores that execute the same program simultaneously. This allows the system to continue operating even if one core fails.
- Error detection and correction: The CPU module continuously monitors itself for errors and corrects them automatically whenever possible.
- Diagnostic features: The CPU module provides extensive diagnostic information that can be used to identify and troubleshoot potential problems.
HIMA F-CPUs are typically used in conjunction with other safety-related components, such as input/output (I/O) modules and safety sensors, to form a complete SIS. The SIS is responsible for monitoring critical process parameters and taking corrective action if they deviate from safe operating limits.
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