HIMA LM002_MAX 985020002

Description

Product Overview and Description

The HIMA LM002_MAX 985020002 is a critical component from HIMA, a global leader in safety-critical automation, serving as a central processing module within their advanced safety system architecture. Specifically, this module is a redundant logic solver CPU for the HIMax safety system platform. Its primary function is to execute certified safety logic programs in a fault-tolerant manner, providing the core intelligence for Emergency Shutdown (ESD) and Fire & Gas (F&G) systems where failure is not an option. The HIMA LM002_MAX module performs high-speed, deterministic processing of safety instrumented functions (SIFs), continuously running self-diagnostics to detect any internal faults and, if necessary, driving the process to a safe state. The “MAX” designation indicates it belongs to the high-performance series, and the part number 985020002 defines its specific hardware configuration. Integrating the HIMA LM002_MAX 985020002 into a safety loop creates a robust, SIL 3/SIL 4 capable logic solver that is physically and logically separated from the basic process control system.

Product Parameters and Specifications

• Product Type: Redundant Safety Logic Solver CPU Module

• Manufacturer Part Number (MPN): 985020002

• Module Designation: LM002_MAX

• Brand: HIMA

• System Compatibility: HIMax Safety System.

• Safety Certification: Certified for Safety Integrity Level (SIL) 3 and SIL 4 according to IEC 61508 and IEC 61511.

• Architecture: Dual-processor, redundant design (1oo2D architecture) within a single module or across paired modules, ensuring continued operation even if one channel fails.

• Memory: Secure memory for storing the safety application program and data. Includes fault-detecting memory (FDM).

• Processing Speed: High-performance processor for fast execution of safety logic and complex algorithms.

• Communication Interfaces:

  • System Bus: For connecting to HIMax I/O modules (F3xxx series).

  • HIMatrix Bus: For communication with other HIMA controllers and systems.

  • Ethernet/PROFIBUS DP: For integration with the plant DCS/PLC for status and alarm reporting (using HIMA’s certified safe communication protocol, e.g., HIMax Comm Module).

• Diagnostics: Extensive continuous self-testing (CST) for CPU, memory, and communication.

• LED Indicators: Comprehensive status and fault indicators for power, run mode, CPU status, and communication.

• Power Supply: Powered via the HIMax system backplane from redundant power supplies.

Key Advantages and Features

The paramount advantage of the HIMA LM002_MAX 985020002 is its certified high safety integrity and built-in hardware redundancy, which guarantees maximum availability and safety. Its deterministic behavior and fast response time are critical for time-sensitive shutdown functions. A key feature is its comprehensive fault detection capability, achieving a high Safe Failure Fraction (SFF) by identifying dangerous undetected failures. The module supports hot-swappable replacement in many configurations, allowing for maintenance without a system shutdown. It is programmed using HIMA’s own, TÜV-certified safety engineering tools (Safety Manager), which enforce rules and syntax designed to prevent common cause failures. The physical separation from the BPCS and its robust design for harsh industrial environments make the HIMA LM002_MAX a trusted choice for protecting personnel, assets, and the environment.

Application Scenarios and Use Cases

The HIMA LM002_MAX 985020002 is deployed in the most hazardous process industries for primary safety layer protection. Its primary application is in Oil & Gas platforms and refineries for Emergency Shutdown (ESD) systems, where it processes inputs from pressure/temperature transmitters and initiates shutdowns of wells, pipelines, or process units. In Chemical/Petrochemical plants, it serves as the logic solver for reactor high-pressure/high-temperature interlock systems and fire & gas detection. For Power Generation, particularly in gas turbine protection, it handles overspeed, flameout, and lubrication failure trips. In Marine applications, it is used for engine room shutdown and fire protection systems. Any application requiring a dedicated, independently certified safety controller to mitigate identified process hazards is the core domain of this module.

Comparison with Competing Products

The HIMA LM002_MAX competes with other high-end, dedicated safety system controllers such as the Rockwell Automation GuardLogix (integrated safety), Siemens S7-400FH/F (fail-safe), ABB Safety Systems, and Yokogawa ProSafe-RS. Compared to integrated safety solutions (where safety runs on the same hardware as standard control), the HIMA LM002_MAX represents the “dedicated” or “separated” safety philosophy, which many end-users in process industries prefer for its independence. Against other dedicated systems, HIMA’s strength lies in its singular focus on safety, often resulting in higher possible SIL ratings and more straightforward certification paths for complex applications. The HIMax platform, with the LM002_MAX at its core, is often noted for its scalability and robust communication options for large, plant-wide safety networks.

Selection Guidelines and Important Notes

Selection Advice:

1. Safety Requirement Specification (SRS): Selection of the HIMA LM002_MAX 985020002 must be driven by a formal SRS that defines the required Safety Integrity Level (SIL) for each Safety Instrumented Function (SIF).

2. System Sizing: The module must be chosen as part of a complete HIMax system design, considering the number of I/O points, the complexity of the safety logic, and the required communication interfaces.

3. Redundancy Requirement: Determine if the application requires controller redundancy (e.g., for high availability alongside high safety). The LM002_MAX supports this within the HIMax architecture.

4. Certification Evidence: Always request and archive the relevant TÜV certificates and safety manuals for the specific hardware (985020002) and firmware version used.

5. Engineering Tools: Ensure access to HIMA’s Safety Manager engineering software and that personnel are trained and certified to use it.

Important Precautions:

• Safety-Critical Component: This is not standard automation equipment. All work must be performed under a strict safety management system by trained and authorized safety engineers.

• Formal Modification Process: Any change to hardware, firmware, or application logic requires a formal Management of Change (MOC) procedure and may necessitate re-validation of the safety loop.

• Documentation: The Safety Manual for the HIMA LM002_MAX is a governing document. It contains mandatory requirements for installation, operation, and maintenance to maintain the safety certification.

• Proof Testing: The entire safety loop, including the logic solver, must undergo regular proof testing as defined in the SRS. The module’s diagnostics do not replace functional testing.

• Firmware Management: Firmware updates must be handled with extreme care, ensuring compatibility with the application and other system modules. A full system backup is essential before any update.

• No Substitution: A standard PLC or other non-certified controller must never be used as a substitute for the HIMA LM002_MAX 985020002 in a certified safety function.

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