Tutto sui PLC: la CPU
A practical engineering guide to PLC CPU operation, from deterministic scan cycles and I/O image tables to memory, communications, diagnostics, redundancy, processor sizing, and reliable system...
The HIMA F 8621A is a specialized coprocessor module designed for integration within the HIMA H51q processor-based safety system (PES). Equipped with its own dedicated HD 64180 microprocessor, the F 8621A operates at a clock frequency of 10 MHz to handle communication and auxiliary processing tasks efficiently. The F 8621A module features internal memory including 384 kbyte static memory, CMOS-RAM, and EPROM, and includes a Dual Port RAM for high-speed data exchange with the main central module.
| Parameter | Specification |
|---|---|
| Manufacturer | HIMA Paul Hildebrandt GmbH + Co KG |
| Model | F 8621A / F8621A |
| Processor | HD 64180 |
| Clock Frequency | 10 MHz |
| Memory | 384 kbyte static memory (CMOS-RAM and EPROM) |
| Interfaces | 2 x RS 485 (half-duplex, galvanically isolated) |
| Transmission Rates | 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600 bps |
| Operating Data | 5 V DC: 360 mA |
| Space Requirement | 4 TE |
| Interface | Connector Pin | Function |
|---|---|---|
| Interface 1 | S1 / S2 | RS 485 Configuration |
| Interface 2 | S3 / S4 | RS 485 Configuration |
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Returns & Warranty



The HIMA F 8621A is a specialized coprocessor module designed for integration within the HIMA H51q processor-based safety system (PES). Equipped with its own dedicated HD 64180 microprocessor, the F 8621A operates at a clock frequency of 10 MHz to handle communication and auxiliary processing tasks efficiently. The F 8621A module features internal memory including 384 kbyte static memory, CMOS-RAM, and EPROM, and includes a Dual Port RAM for high-speed data exchange with the main central module.
| Parameter | Specification |
|---|---|
| Manufacturer | HIMA Paul Hildebrandt GmbH + Co KG |
| Model | F 8621A / F8621A |
| Processor | HD 64180 |
| Clock Frequency | 10 MHz |
| Memory | 384 kbyte static memory (CMOS-RAM and EPROM) |
| Interfaces | 2 x RS 485 (half-duplex, galvanically isolated) |
| Transmission Rates | 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600 bps |
| Operating Data | 5 V DC: 360 mA |
| Space Requirement | 4 TE |
| Interface | Connector Pin | Function |
|---|---|---|
| Interface 1 | S1 / S2 | RS 485 Configuration |
| Interface 2 | S3 / S4 | RS 485 Configuration |
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Color pattern |
Green
|
| Country of origin |
Germany
|