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 F6251 (also referred to as F 6251) is a safety-related limit monitor engineered by HIMA for integration into the Planar F system architecture. This module processes dual-layer hardware variables, hosting distinct analog and digital processing sections to evaluate field parameters against preset processing conditions. The analog section reads standard input voltages or processing loop currents, translating raw process states into conditional thresholds monitored by the logic assembly. Based on the configuration, the digital segment manages solid-state outputs to drive external machinery interlocks or signaling loops. This hardware assembly provides independent execution loops to ensure dependable system protection within functional safety environments.
| Parameter | Value |
|---|---|
| Manufacturer | HIMA Paul Hildebrandt GmbH + Co. KG |
| Model | F6251 / F 6251 |
| Power Supply | 24 VDC / -15% to +20% |
| Ambient Conditions (Operating) | -25 to +70 degC |
| Storage Temperature | -30 to +75 degC |
| Analog Input Voltage Range | 0 to 5.5 V |
| Analog Input Current Range | 0 to 22 mA |
| Digital Outputs | 24V / 100 mA |
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Returns & Warranty



The F6251 (also referred to as F 6251) is a safety-related limit monitor engineered by HIMA for integration into the Planar F system architecture. This module processes dual-layer hardware variables, hosting distinct analog and digital processing sections to evaluate field parameters against preset processing conditions. The analog section reads standard input voltages or processing loop currents, translating raw process states into conditional thresholds monitored by the logic assembly. Based on the configuration, the digital segment manages solid-state outputs to drive external machinery interlocks or signaling loops. This hardware assembly provides independent execution loops to ensure dependable system protection within functional safety environments.
| Parameter | Value |
|---|---|
| Manufacturer | HIMA Paul Hildebrandt GmbH + Co. KG |
| Model | F6251 / F 6251 |
| Power Supply | 24 VDC / -15% to +20% |
| Ambient Conditions (Operating) | -25 to +70 degC |
| Storage Temperature | -30 to +75 degC |
| Analog Input Voltage Range | 0 to 5.5 V |
| Analog Input Current Range | 0 to 22 mA |
| Digital Outputs | 24V / 100 mA |
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
|
| Power source |
DC Power
|