Description
1. Product Overview
The HIMA F8628X is a high-reliability safety control module designed for use in HIMA Safety Instrumented Systems (SIS). This module provides deterministic, fault-tolerant operation for critical industrial processes where safety, uptime, and regulatory compliance are paramount. It is part of the HIMA HIMax or HISafety platform, designed for high-integrity applications in energy, chemical, oil & gas, and infrastructure sectors.
The F8628X module acts as a core or distributed I/O component within a safety loop, processing discrete and analog signals from field devices such as emergency shutdown valves, pressure sensors, and flow meters. Its primary function is to monitor process conditions and, in the event of abnormal operation, trigger defined safety actions to maintain plant integrity and personnel safety.
Engineered for harsh industrial environments, the F8628X delivers high operational reliability, redundant communication, and modular scalability, making it suitable for both new installations and upgrades of existing safety control systems.

HIMA F8628X
2. Product Parameters (Technical Characteristics)
| Parameter | Description |
|---|---|
| Product Type | Safety Instrumented System Module |
| Model Number | F8628X |
| Brand/Manufacturer | HIMA GmbH |
| Module Function | High-integrity safety control / I/O processing |
| Input Channels | Configurable digital and analog inputs depending on system setup |
| Output Channels | Configurable discrete outputs for emergency shutdown or alarms |
| Communication Interfaces | Redundant fieldbus and proprietary safety protocol ports |
| Power Supply | DC power according to HIMA SIS standards, typically 24 VDC nominal |
| Redundancy | Optional redundant CPU or I/O channels for high-availability safety loops |
| Environmental Rating | Designed for control cabinet or panel mount; industrial ambient suitability |
| Operating Temperature Range | Standard industrial range: 0°C to 60°C (or extended ranges depending on model) |
| Mounting Type | DIN rail or rack mount compatible with HIMax / HISafety systems |
| Diagnostics | Continuous module self-test, status LEDs, and software monitoring |
The F8628X supports rapid signal scanning and processing, ensuring deterministic response to safety-critical events. Its modular design allows flexible deployment in complex industrial control systems.
3. Product Datasheet Description
From a datasheet perspective, the HIMA F8628X module is designed to provide high-integrity control in safety instrumented systems. Its functionality can include:
- Digital Input Monitoring: Detects on/off states from field switches, emergency shutdown devices, and limit sensors.
- Analog Input Processing: Monitors process variables such as pressure, temperature, or flow when configured for analog channels.
- Output Control: Activates safety outputs to emergency shutdown valves, alarms, or actuator signals.
- Redundant Operation: Supports hot standby or fully redundant modules to ensure continuous safe operation.
- Diagnostics and Status Monitoring: Provides real-time status of all channels, module health, and error logging for system verification.
- Integration: Seamlessly integrates with HIMA SIS CPUs, HMIs, and communication modules for complete safety automation architecture.
The F8628X is built to comply with IEC 61508 and IEC 61511 functional safety standards, ensuring suitability for SIL 2 and SIL 3 safety applications depending on system configuration.
4. Country of Origin
The HIMA F8628X is manufactured in Germany at HIMA GmbH facilities. Production adheres to stringent industrial and functional safety quality standards, including ISO 9001 and TÜV-certified safety engineering practices. Every module undergoes rigorous testing to verify functionality, electrical integrity, and environmental tolerance prior to deployment in industrial applications.

HIMA F8628X
5. Application Fields
The F8628X module is widely used in industrial safety automation, including:
- Oil & Gas: Emergency shutdown systems for pipelines, offshore platforms, and refineries.
- Power Generation: Safety control for turbines, boilers, and auxiliary systems.
- Chemical and Petrochemical: Monitoring critical process variables and controlling interlocks.
- Mining and Metals: Safety control for conveyor systems, crushers, and material handling.
- Water and Wastewater: Safety instrumentation for pumping stations and chemical dosing systems.
- Infrastructure and Transport: Industrial safety logic for automated systems and facility management.
It is especially suitable for processes requiring high availability and deterministic safety responses.
6. Product Usage Instructions
Installation:
- Mount the module in a compatible HIMax or HISafety rack or DIN rail according to HIMA installation guidelines.
- Ensure secure mechanical mounting and proper airflow for heat dissipation.
Electrical Connection:
- Connect power supply and field I/O wiring according to HIMA specifications.
- Observe correct polarity, grounding, and separation of signal types to minimize electrical noise.
Configuration:
- Configure channels, safety logic, and redundancy parameters using HIMA’s configuration software.
- Verify all input/output mapping, response times, and interlock behavior before commissioning.
Operation:
- During normal operation, the module continuously monitors input signals and executes safety logic.
- Outputs activate predefined safety responses in case of abnormal process conditions.
Maintenance:
- Periodically check module status LEDs and perform system diagnostics.
- Ensure connections are secure and environment conditions remain within specification.
- Replace module if diagnostics indicate persistent errors or failure.
7. Frequently Asked Questions (FAQ)
Q1: What type of system is the F8628X used in?
It is used in HIMA Safety Instrumented Systems (SIS) for industrial process safety automation.
Q2: Is the module SIL-rated?
Yes, it is designed for use in SIL 2 and SIL 3 applications depending on system configuration and redundancy.
Q3: Can it process analog signals?
Yes, depending on the channel configuration, it can handle both digital and analog inputs.
Q4: What industries most often use this module?
Oil & gas, power generation, chemical, mining, water treatment, and industrial infrastructure.
Q5: How is the module installed?
It is mounted in HIMax or HISafety racks or DIN rails and connected according to HIMA wiring standards.
8. Recommended Related HIMA Products
The following HIMA modules complement the F8628X in safety control architectures:
| Model | Description |
|---|---|
| F8627X | Complementary input module for additional digital channels. |
| F8610X | Safety CPU module for HIMax and HISafety systems. |
| F8630X | Redundant output module for SIL 2/3 emergency shutdown systems. |
| F8650X | Analog input/output module for process variable monitoring. |
| F8640X | Communication module for fieldbus and Ethernet interfaces. |
These modules together provide a complete, modular safety instrumentation system capable of meeting rigorous industrial safety standards.
9. Conclusion
The HIMA F8628X is a reliable, industrial-grade safety module engineered for critical process monitoring and emergency control in high-risk industrial environments. Its robust design, configurable digital and analog I/O, and compliance with international functional safety standards make it an essential component in HIMA Safety Instrumented Systems. Coupled with other HIMA modules, it provides flexible, scalable, and high-integrity solutions for safety-critical automation applications.

