F8621/A (HIMA Safety Ethernet CPU Communication Module) Basic Information

Model: F8621/A

Brand: HIMA (Germany's HIMA)

Type: H51q/H41q System, Security CPU + Ethernet Communication Main Control Module

Safety Level: IEC 61508 SIL3, TÜV Certification

Part Number: 984862160

Installation: Rack slot installation

Protection Level: IP20

Electrical parameters

Power supply: 24VDC, 5VDC dual power supply

Insulation withstand voltage: 500V AC/1 minute

Built-in protection: Overvoltage, undervoltage, reverse connection, over-temperature, short circuit protection

Hardware performance

Architecture: TMR triple redundant safety architecture

Processor: Dual-core ARM Cortex-A53

Program storage: Flash large-capacity firmware storage

Data cache: High-speed SRAM

Logic cycle: ≤ 20ms

SOE event recording: High-precision millisecond-level event traceability

Communication interface

Ethernet: RJ45 Gigabit Ethernet, TCP/IP protocol

Serial port: 2 isolated RS-485, RS-232

System bus: HIMA dedicated redundant safety backplane bus

Supported protocols: Modbus RTU, Profibus DP, HIMA internal safety protocol

Environmental parameters

Operating temperature: -25℃ ~ +85℃

Storage temperature: -40℃ ~ +85℃

Humidity: 5%~95% without condensation

Shaking and impact resistance: Compliant with IEC 60068 industrial standards Core function

Conduct safety logical operations for the SIS system and ESD emergency stop interlock control

Dual-link redundant Ethernet communication, connecting to DCS, upper-level monitoring and remote debugging

Full hardware real-time self-diagnosis, automatically reporting faults without affecting safety interlocks

Support online hot-swappable replacement, with automatic synchronization of program parameters

Internal I/O bus redundancy interaction to ensure stable transmission of safety data

Panel indicator lights

PWR Green: Power normal, constantly on

RUN Green: Normal operation, flashing

ALM Red: Hardware/communication failure alarm

ETH Yellow: Ethernet data transmission flashing

COM Yellow: Backplane bus, serial port communication status

Installation and maintenance

Push in the lock to align with the rack slot to ensure reliable connection of backplane contacts

Connect power, Ethernet, system bus in accordance with specifications, and reliably ground the cabinet

Check the status of indicator lights during daily inspections, regularly tighten terminals and clean dust

Replace with the same model directly, without reconfiguring programs and addresses