HIMA HIQuad X Safety System

HIMA HIQuad X Safety System

System Overview and Positioning

HIQuad X is a programmable electronic safety system launched by HIMA. As an upgraded version of the HIQuad system with over 30 years of application history, it integrates mature HIQuad I/O technology and high-performance HIMax system architecture, suitable for scenarios with strict safety requirements and the need to ensure system availability (such as process industries and energy fields). The system supports centralized and distributed deployment, and is compatible with various I/O modules including intrinsically safe SIL 3 modules. It is programmed using SILworX engineering tools to meet safety function requirements such as "de energize to trip" and "energize to trip".

Typical application scenarios

HIQuad X is mainly aimed at process industries and safety critical fields, with typical applications including:

Continuous and batch production equipment: safety interlock control for chemical reaction vessels and pharmaceutical production lines;

Burner and boiler protection: realize safety functions such as flame monitoring, emergency shutdown due to overheating and overpressure;

Oil and gas pipelines: pressure and flow anomaly detection and emergency cutoff control;

Other industrial scenarios that require compliance with SIL 3 safety level, such as nuclear power auxiliary systems and safety monitoring in petrochemical storage tank areas.

Core advantages

（1） System level advantages

Improvement of engineering and operation efficiency

Adopting the Unified Engineering Platform (SILworX) to reduce the cost of switching between multiple tools;

Support fast reload of application programs, hardware configurations, and communication parameters to shorten fault recovery time;

Optimize diagnostic functions (such as real-time monitoring of module status and fault location prompts) to reduce maintenance and troubleshooting difficulties.

Performance and flexibility optimization

Shorten the system cycle times and improve real-time control response speed;

Accelerate REAL data computation efficiency to meet high-precision process control requirements;

Supporting a hybrid architecture of single loop (Mono) and redundant loop, flexibly adapting to different availability requirements, and reducing device footprint;

Supports multitasking and can run up to 32 applications simultaneously, meeting the requirements for complex control logic splitting.

Security and compatibility guarantee

Continuing HIMA's mature safety concept and meeting the highest SIL 3 safety level requirements;

Compatible with 24 existing HIQuad I/O modules, no need to replace I/O hardware or field wiring during upgrades, reducing renovation costs and downtime;

F-CPU 01 operates without interference with the I/O module, avoiding mutual influence between core control and signal acquisition;

Cross connection between modules is supported to enhance system redundancy and availability.

（2） Highlights of modernization upgrade

Compared to traditional systems, HIQuad X has significant advantages in upgrade scenarios:

Shorter transformation cycle: No need to redeploy I/O wiring, reducing on-site construction workload;

High hardware reuse rate: directly compatible with existing HIQuad I/O modules, reducing upgrade costs;

Enhanced scalability: supports longer system buses, better electromagnetic compatibility (EMC stability), and adapts to complex industrial environments;

Optimization of operating experience: Improved tactile feedback design (such as module insertion and removal feel, button operation feedback) enhances operational convenience.

System architecture and core parameters

（1） Differences between two major system models

The HIQuad X is divided into two models, H51X and H41X, with core configuration differences as shown in the table below:

Model: Maximum I/O Expansion Rack Number, Single System: Maximum I/O Module Number, Applicable Scenarios

H51X 16 with 256 large complex systems (such as large petrochemical parks and centralized control of multiple units)

H41X 1 set of 28 small and medium-sized systems (such as single production line, independent equipment safety control)

（2） Key components and functions

Component model type, core functions and parameters

The F-CPU 01 processor module is suitable for H51X/H41X, including 2 RJ-45 interfaces, supporting SIL 3 safety level, and implementing core control logic operations

The F-COM 01 communication module integrates Ethernet, Profibus DP, and serial communication functions, including 2 RJ-45 interfaces and 1 9-pin D-Sub interface (including 2 RS 485 channels), supporting both secure and standard protocols

F-IOP 01 I/O processing module SIL 3 level, with redundant system bus, responsible for I/O signal acquisition and control instruction execution

F-PWR 01 power module outputs 24 VDC/5 VDC, with a power of 50 W, suitable for the main power supply of H41X/H51X systems

F-PWR 02 (optional) watchdog power module is only suitable for H51X expansion rack, ensuring stable power supply for expansion units

F-BASE RACK 01 basic rack 19 inch specification, 4U height, suitable for H51X system

F-BASE RACK 02 basic rack 19 inch specification, 4U height, including 12 I/O module slots, suitable for H41X system

The F-FAN 01 system fan has a 19 inch specification and a height of 1U, providing heat dissipation for the rack and ensuring stable operation of the module

Communication function and protocol support

（1） Advantages of Communication Architecture

Hardware and connectivity flexibility

Both F-CPU 01 and F-COM 01 are equipped with two Ethernet interfaces, supporting redundant communication;

F-COM 01 supports up to 10 modules to establish interference free point-to-point connections with F-CPU 01, expanding communication capacity;

Support the use of complete IP address segments, configurable subnet masks and virtual local area networks (VLANs) to achieve network segmentation isolation and enhance communication security.

Secure Communication and System Interconnection

Implementing secure communication between HIMA systems through the SafeEthernet protocol, supporting secure integration of HIQuad X with HIMax, HIMatrix systems, and RIO (Remote I/O);

Integrate HIPRO-S V2 protocol to establish secure connections with existing HIQuad F 8627X systems, ensuring compatibility during upgrades of older systems;

Support PADT (Programming and Debugging Tool) to communicate with the system through SILworX, enabling program download and diagnosis.

Classification of supported communication protocols

The communication protocols of HIQuad X are divided into "safety related protocols" and "standard protocols", which are implemented through different modules:

Protocol type supports the core purpose of protocol implementation module

Secure communication protocols SafeEthernet, HIPRO-S V2, SNTP (time synchronization) F-CPU 01/F-COM 01 for secure data transmission, time synchronization, and interconnection with legacy HIQuad systems

Standard communication protocols Modbus TCP (master/slave), Profibus DP (slave), Modbus RTU (master/slave), COM User Task (CUT, custom protocol programming) F-COM 01 and third-party devices such as SCADA systems HMI、 Non safety data exchange of smart meters

Compliance and Certification Standards

HIQuad X complies with multiple international safety and industrial standards, ensuring compliant applications in different regions and industries worldwide. Core certifications include:

Safety integrity standards: IEC 61508 (maximum SIL 3), IEC 61511 (maximum SIL 3 for process industries), EN ISO 13849-1 (maximum PL e);

Industry specific standards: EN 50156 (railway applications), EN 298 (burner control), EN 12067 (oil and gas pipelines), EN 54-2 (fire detection and alarm), NFPA 72/85/86 (North American fire and boiler standards);

Explosion proof standard: EN 60079-15 (ATEX Zone 2, non explosion proof area);

Network security standard: IEC 62443 (SL1, to be published).

Summary

As an upgraded version of the HIMA safety system, the core value of HIQuad X lies in * * "balancing safety and availability, upgrading and compatibility" * *: it not only meets the highest SIL 3 safety level requirements, but also improves system availability through flexible architecture, fast reloading, and optimized diagnostics; Simultaneously compatible with existing HIQuad I/O modules and communication protocols, significantly reducing the cost of upgrading old systems, suitable for various industrial scenarios that require high safety and efficiency.