TRICONEX TM11-5L-88

Description

Product Overview and Description

The TRICONEX TM11-5L-88 is a high-performance industrial memory module, specifically an 88-pin Static RAM (SRAM) memory card, designed for legacy Triconex Tricon Safety Instrumented System (SIS) and critical process controllers. This module is a vital component for storing the controller’s operating system, application logic, and configuration data in non-volatile form, ensuring persistence through power cycles. The primary function of the TRICONEX TM11-5L-88 is to provide reliable, high-speed data storage for the triple modular redundant (TMR) controller’s Main Processors (MPs), enabling the execution of safety-critical shutdown and control logic.  Proper handling and selection of this memory module are crucial for the integrity of the safety system. The reliability of the TRICONEX TM11-5L-88 is foundational, as it directly holds the program that governs emergency shutdown sequences in hazardous processes.

Detailed Product Parameters

• Function: 88-Pin Static RAM (SRAM) Memory Module for Triconex Tricon Controllers.

• Controller Compatibility: Designed for use in specific legacy Tricon controller models, such as the Tricon v9, v10, and potentially early v11 series Main Processors (e.g., MP model numbers 3008, 3009, 4351).

• Memory Type: Static RAM (SRAM), which retains data as long as power is applied. It typically relies on a battery backup system within the controller chassis to maintain memory during a main power loss.

• Memory Capacity: The capacity is denoted within the part number (e.g., “5L” may refer to a specific density like 512KB or 1MB). Exact capacity is critical for application compatibility.

• Form Factor: An industry-standard 88-pin JEDEC module, but programmed with Triconex-specific firmware and data structures.

• Physical Interface: 88-edge connector designed for insertion into a dedicated socket on the Tricon Main Processor board.

• Operating Environment: Rated for industrial temperature ranges and built to withstand vibration, essential for operation in plant environments.

Key Advantages and Features

1. Deterministic Performance for Safety Systems: The TRICONEX TM11-5L-88 provides fast, predictable access times crucial for the deterministic scan cycles of a TMR safety controller, ensuring that safety logic executes within its required time constraints.

2. High Reliability in Harsh Conditions: Manufactured with industrial-grade components, this memory module is designed for 24/7 operation in environments with temperature fluctuations and electrical noise, offering a high mean time between failures (MTBF).

3. Guaranteed System Compatibility: As a genuine Triconex component, the TM11-5L-88 is tested and validated to work flawlessly with the specific Tricon controller hardware and the TriStation 1131 programming software, eliminating compatibility risks.

4. Critical for System Integrity: This module stores the core safety application. Its integrity ensures that the controller will perform the correct safety functions exactly as designed and validated.

5. Facilitates Application Updates and Backup: The removable nature of the TRICONEX TM11-5L-88 allows safety engineers to safely update the controller’s application logic offline and to maintain physical backup copies of the program for disaster recovery.

Primary Application Fields and Use Cases

This memory module is used in legacy Tricon SIS installations across industries where process safety is paramount.

• Oil & Gas: Emergency Shutdown (ESD) systems on offshore platforms, Fire & Gas (F&G) systems in refineries, and Turbine Control for compressors.

• Power Generation: Burner Management Systems (BMS) and turbine overspeed protection for gas-fired generators.

• Chemical Processing: Critical interlock and shutdown systems for reactors, distillation columns, and high-pressure equipment.

• Use Case Example: On a gas processing platform, a Tricon v10 controller manages the Emergency Shutdown system. The TRICONEX TM11-5L-88 memory module in each of the three Main Processors contains the logic that continuously monitors pressure sensors and emergency push-buttons. If a high-high pressure is detected, the identical logic on all three MPs executes, resulting in a voted command to close safety valves, with the program’s reliability residing on these memory modules.

Comparison with Competing Products

• vs. Generic Commercial SRAM Modules: Off-the-shelf 88-pin SRAM modules may fit physically but lack the proprietary firmware formatting, quality assurance testing, and compatibility validation required for a safety system. Their use in a Tricon controller is unsupported and poses a significant risk.

• vs. Newer Triconex Memory Technologies (e.g., Flash-based modules in newer controllers): The TRICONEX TM11-5L-88 represents an older, SRAM-based technology used in legacy systems. Newer controllers often use Flash memory, which is non-volatile without battery backup. They are not backward-compatible.

• vs. Memory Modules from Other Safety PLC Vendors (e.g., HIMA, Siemens): Memory modules are highly proprietary. The TM11-5L-88 is specific to the Tricon architecture and is not interchangeable with modules from other safety system manufacturers.

Selection Suggestions and Important Precautions

• Selection Advice: The TRICONEX TM11-5L-88 is exclusively a replacement part. Selection must be based on the exact part number from the controller’s documentation or the label on the failed module. The specific suffix (“-88”) and preceding code (“5L”) are essential. Verify compatibility with the exact Tricon controller model and Main Processor board revision.

• Precaution – Electrostatic Discharge (ESD): This is a highly static-sensitive component. Always handle using an anti-static wrist strap and place the module on an anti-static mat. Never touch the gold edge connectors.

• Precaution – Battery Backup System: Before removing or replacing the module, verify the health of the controller’s battery backup system. A failed battery can cause memory corruption during the swap procedure.

• Precaution – Software and Data: Ensure you have a verified, current backup of the application program from the TriStation software before replacing the memory. The new module will need to be programmed with this application data.

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TM11-5L-88