Technical Overview
The HIMA F8620/11 serves as the computational core for H41q and H51q safety systems. This central processing unit executes safety-instrumented functions with deterministic logic solving. Furthermore, it operates within a 1oo2D diagnostic architecture. Consequently, every processing task undergoes real-time validation before field outputs activate.
Hardware Architecture
At its core, the HIMA F8620/11 employs dual 32-bit RISC safety processors. Each processor verifies the other’s calculations continuously. Therefore, any discrepancy triggers an immediate fail-safe state. The module includes 1 MB Flash EPROM and 1 MB SRAM for program storage. Additionally, logic execution completes in just 0.05 milliseconds per 1,000 instructions.
Key Specifications
| Parameter | Specification |
|---|---|
| Processor | Dual 32-bit RISC safety processors |
| Clock Frequency | 50 MHz |
| Memory | 1 MB Flash EPROM / 1 MB SRAM |
| Logic Execution | 0.05 ms per 1K instructions |
| Supply Voltage | 5.0 VDC ± 5% |
| Current Consumption | 1.2 A at 5 VDC |
| Heat Dissipation | Max 6.0 W |
| Operating Temperature | 0 °C to +60 °C |
| Storage Temperature | -40 °C to +85 °C |
| Weight | 0.5 kg (1.10 lbs) |
| Safety Rating | SIL 3 (IEC 61508) / AK 6 |
System Integration
The HIMA F8620/11 communicates through an integrated system bus for I/O and peer-to-peer links. Engineers configure safety logic using the ELOP II software environment with Function Block Diagrams. Meanwhile, front-panel LEDs provide immediate operational status. The plug-in design enables fast replacement during maintenance windows.
Functional Role
This CPU handles central arbitration of all safety data within the safety system. It cyclically scans inputs, executes user-defined logic, and updates outputs. Moreover, continuous self-tests monitor ALUs, registers, and memory sectors. The HIMA F8620/11 supports redundant configurations for high-availability applications.
Details
| Weight | 0.16 kg |
|---|---|
| Dimensions | 70 × 70 × 50 mm |
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