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HIMA F8621A
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HIMA F8621X
HIMA F8621X

HIMA F8621A

Product Name: PROFIBUS DP/V1 Safety Communication Master Module
Product Introduction: The HIMA F8621A is a high-integrity communication interface card for HIMA H51q safety PLC systems, enabling SIL 3 rated data exchange over PROFIBUS networks using PROFIsafe protocol.
Category:
Description
Technical Specifications:
  • Model: F8621A (Order No. 984862160)
  • Manufacturer: HIMA Paul Hildebrandt GmbH + Co KG
  • System Platform: HIMA H51q SIS
  • Communication Protocol: PROFIBUS DP/V1​ + PROFIsafe​ (IEC 61784-3)
  • Role: Safety Master (connects up to 31​ PROFIsafe slaves)
  • Interface: 1 × RS-485​ (9-pin D-SUB, isolated)
  • Baud Rate: 9.6 kbps​ to 12 Mbps​ auto-negotiating
  • Max Safety Data: 244 bytes​ input + 244 bytes​ output per cycle
  • Electrical Isolation: Bus-logic isolation ≥1 kV AC​
  • Supply Voltage: 24V DC​ (from backplane)
  • Power Consumption: Typical 8W​
  • Typical Cycle Time: ≤10 ms​ @ 12 Mbps (8 slaves)
  • Operating Temperature: 0°C​ to +60°C​ (some sources -5 to +55)
  • Protection Rating: IP20​
  • Certifications: IEC 61508SIL 3, IEC 61511, EN 62061, TÜV​
Functional Features:
  • Online Diagnostics: Monitors bus short/open, slave offline, CRC errors, sequence number anomalies.
  • Redundancy Support: Compatible with HIMA redundant CPU configurations (F7116 etc.).
  • Black-Channel: Transmits safety data over standard PROFIBUS cabling without extra wiring.
Performance Parameters:
  • Response Time: Millisecond-level deterministic cyclic update.
  • Node Capacity: Max 31​ slaves per master segment.
Material Composition:
  • Enclosure: Metal-reinforced industrial plastic housing.
  • Connectors: Gold-plated D-SUB pins for corrosion resistance.
  • PCB: Multilayer FR4 with isolation barriers.
Structural Features:
  • Mounting: Plugs into H51q standard I/O rack (F7101/F7102 baseplate), single slot width.
  • Indicators: LEDs for link status, error, and activity.
Working Principle:
The module acts as a PROFIBUS DP Master. It encapsulates PROFIsafe telegrams within standard DP frames. Using watchdog timers, counter signatures, and CRC checks, it ensures data integrity across the black channel. Safety logic in the CPU cross-checks received data against expected sequences to detect latency or manipulation.
Advantages:
  • Eliminates separate safety network cabling via integrated PROFIsafe.
  • TÜV certified SIL 3​ communication path.
  • Seamless integration with third-party SIL 3 devices (Siemens ET200SP F, Pilz, SEW).
Applicable Industries:
Offshore Oil & Gas, Refining, Chemical plants, Power (Boiler/Turbine protection), Rail signaling.
Model Series: HIMA F86xx communication series (F8621A, F8621X, F8627, F8627X).
Installation Requirements:
  • Insert firmly into designated communication slot of H51q rack until latch engages.
  • Terminate PROFIBUS bus with 220Ω​ resistors at both ends.
  • Keep bus cables separated from high-voltage lines (> 200mm​ distance).
Usage Precautions:
  • Ensure GSD file version matches firmware to avoid configuration mismatch.
  • Do not remove under power; wait for rack diagnostic acknowledgement if hot-swap is unsupported in specific firmware.
  • Verify 1kV​ isolation rating is not bypassed by improper shielding grounds.
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