Key Features and Applications
Collaborative Processing Architecture

Independent onboard processor dedicated to communication protocol handling

Effectively offloads the central safety CPU (F8650X / F8652X)

Ensures deterministic execution of real-time safety programs without communication latency impact

Multi-Protocol Communication

Supports PROFIBUS DP, Modbus RTU, and related serial protocols

Enables seamless data exchange between SIS and DCS/SCADA systems

Suitable for remote monitoring, diagnostics, and maintenance access

Redundancy and Advanced Diagnostics

Supports redundant system configuration

Integrated communication link diagnostics and fault alarm signaling

Stores up to 500 diagnostic records, enabling rapid fault localization and troubleshooting

Typical Applications

SIL 3 safety control systems

Emergency Shutdown (ESD) systems in petrochemical plants

Fire & Gas (F&G) detection and protection systems

Burner Management Systems (BMS)

Power boiler and utility protection systems

Technical Specifications
Processor and Memory

Processor: HD64180, 10 MHz

Memory:

384 kB static RAM

EPROM for operating system storage

Communication Interfaces

2 × RS-485 ports

Half-duplex

Galvanically isolated

Adjustable baud rate: 300–57,600 bps

Backplane Interface

Dual-port RAM architecture

High-speed data exchange with the central safety CPU

Supports redundant communication paths

Power Supply

24 V DC, redundant input

Operating voltage range: 18–32 V DC

Built-in overvoltage and reverse polarity protection

Environmental Specifications
Parameter Specification
Operating Temperature −20 °C to +70 °C
Relative Humidity ≤ 95% (non-condensing)
Vibration Resistance 10–150 Hz
Shock Resistance 15 g (11 ms)
Mechanical Specifications
Parameter Specification
Protection Class IP20
Installation DIN rail mounted
Dimensions approx. 100 × 160 × 25 mm
Net Weight approx. 0.8 kg

HIMA F8621A 984862160 Communication Module

Typical Applications

Emergency Shutdown (ESD) systems

Fire & Gas (F&G) monitoring

Burner Management Systems (BMS)

Turbine protection and safety control

Other SIL 3–rated process safety systems in petrochemical, oil & gas, and power industries