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HIMA F8621A 984862160 coprocessor communication board
| Brand: HIMA |
| Item NO: F8621A 984862160 |
| Effect: Share the communication computation load of
the main CPU and specialize in handling serial communication tasks |
| Condition: In stock, brand new/Used |
| Warranty: 365 days |
| Payment:T/T 50% deposit, 50% balance |
| www.szcxdcs.com |
+86 15359298293
HIMA F8621A 984862160 coprocessor communication board
F8621A 984862160 is a communication board for the HIMA HIQuad (H41q/H51q) safety instrumented system co processor from Germany. It is a standard 19 inch rack board and runs when plugged into the central rack backplane. F8621A is compatible with HIMA HIQuad H41q/H51q safety system
main function
- Share the communication and computation load of the main CPU, specifically handle serial communication tasks, ensure that the secure CPU focuses on executing SIS security logic, is not occupied by external communication resources, and guarantees real-time security logic.
- Provide two isolated RS485 interfaces to enable data exchange between HIMA safety system and DCS, PLC, upper SCADA, HMI human-machine interface, supporting Modbus RTU master/slave mode.
- Complete the external forwarding of safety system alarms, interlock status, and process measurement point data, while receiving instructions issued by the upper level.
- Supporting redundant system configuration, dual port RAM enables high-speed data exchange with the main CPU; The board comes with a complete self diagnosis, and communication faults can be reported to the system alarm.
- Can only be used on the old H41q/H51q platforms and cannot be directly used on the new generation HIQuad-X system. The software and hardware are incompatible with each other.
HIMA F8621A 984862160 coprocessor communication board
Parameter Specifications
| Item | Specification |
|---|---|
| Model | F8621A |
| Order No. | 984862160 |
| System Compatibility | HIMA H41q / H51q (HIQuad) |
| Processor | HD64180, 10 MHz |
| On‑board Memory | 384 kB (SRAM + EPROM) |
| Communication Port | 2 × RS485 half‑duplex, galvanic isolated |
| Baud Rate | 300‑57600 bps software configurable |
| Supported Protocol | Modbus‑RTU Master / Slave, H800 |
| Backplane Power | 5 V DC, 360 mA |
| Safety Level | SIL 3 (within H41q/H51q system architecture) |
| Diagnostic | On‑board TX/RX LED indicators, self‑diagnosis |
| Operating Temperature | 0 ℃ ~ +60 ℃ |
| Protection Class | IP20 (rack‑mount module) |
| Net Weight | 0.16 kg |
| Shipping Weight | 0.50 kg |
| Mounting | 19‑inch sub‑rack plug‑in module |
| Country of Origin | Germany |
Usage Scenarios
- Petrochemical SIS/ESD emergency shutdown system: H41q/H51q old safety system, communicates through Modbus RTU and DCS system, uploads interlocking, alarm, and measurement point data.
- Coal chemical and fertilizer plant safety instrument system, replacement of old project HIMA HIQuad system spare parts, achieving SIS and upper monitoring docking.
- The safety interlocking system for power plant boilers and gas turbines outputs interlocking status and alarm information to the entire plant monitoring system.
- Offshore platform, oil and gas field process safety control system, communication extension of the old HIMA H41q/H51q system.
- SIS system renovation and spare parts replacement for pharmaceutical and fine chemical explosion-proof process equipment.
Product features
- The co processor offloading mechanism independently processes all serial communication tasks, ensuring that the main CPU is not affected by external communication loads, guaranteeing SIS safety logic certainty, and meeting SIL3 functional safety requirements.
- Two RS485 half duplex interfaces with mutual electrical isolation, isolated and withstand voltage of 500V, resistant to on-site industrial interference, and capable of long-distance serial data transmission.
- Supports Modbus RTU master/slave, can interface with third-party DCS and PLC, and achieve interconnection between safety systems and the entire plant control system.
- Dual port RAM, capable of high-speed data exchange with the main CPU of the rack, and can also operate stably in redundant systems.
- Onboard TX/RX status LED indicator lights provide a visual view of each transmission and reception status, facilitating on-site troubleshooting of communication faults.
- Complete board level self diagnosis, module faults and bus anomalies can be reported to the HIMA system, generating system alarms.
- Standard 19 inch rack plug-in card structure, easy to disassemble and replace; The circuit board is coated with three anti coatings to adapt to the dusty and humid working conditions of chemical and petrochemical control cabinets.
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