Description

The ABB 07DC92D GJR5252200R0101​is a high-performance,safety-certified CPU(Central Processing Unit)module,specifically the PM864A processor,for the AC 800M High Integrity(HI)controller family.This module serves as the core computational and control engine within ABB’s 800xA High Integrity system,engineered to execute both standard process control and safety instrumented functions(SIFs)with the highest levels of reliability and certification.

Application Scenarios

Within the safety-critical confines of a liquefied natural gas(LNG)terminal,the control system managing hydrocarbon compression,cryogenic storage,and loading must not only be highly available but also certified for functional safety.A fault in a standard controller could lead to an undetected dangerous condition.Here,the ABB 07DC92D GJR5252200R0101​(PM864A CPU)operates as the certified brain of a Triple Modular Redundant(TMR)safety system.Three of these CPUs run in perfect synchronization,constantly cross-checking each other’s calculations.If one CPU diverges due to a hardware fault or soft error,the other two vote it out,and the system continues operating without interruption or loss of safety protection.This module directly addresses the paramount need for fault tolerance,deterministic response,and certified safety(up to SIL 3)in industries like oil&gas,chemicals,and power generation,where failures can have catastrophic consequences.

Parameter

Main Parameters

Value/Description

Product Model​

07DC92D GJR5252200R0101​(PM864A Processor)

Manufacturer​

ABB

Product Category​

High Integrity Safety Programmable Logic Controller(Safety PLC)CPU

System Platform​

ABB AC 800M High Integrity,part of 800xA Extended Automation

Safety Certification​

TÜV certified up to IEC 61508 SIL 3,IEC 61131-3

Redundancy​

Supports Triple Modular Redundancy(TMR)and Hot Swap

Processor​

High-performance dedicated processor for control and safety applications

Memory​

Integrated flash and RAM for application program and data

Integration​

Tight integration with 800xA system for unified engineering and operator interface

Key Feature​

Capable of mixed execution of standard and safety logic within a single controller.

Technical Principles and Innovative Values

The ABB 07DC92D GJR5252200R0101​is built upon a philosophy of”diversity and diagnostics”to achieve its high safety integrity levels,moving beyond simple hardware redundancy.

Innovation Point 1:Software and Hardware Diversity in TMR:​In a TMR configuration,three identical 07DC92D​modules do not just run the same code.The system can employ diverse compilers and execute instructions in a time-skewed manner.This means a common-cause software bug or a transient hardware fault affecting all three CPUs simultaneously is highly improbable.The voting mechanism at the output stage ensures that only a correct,agreed-upon command is sent to the field,providing an unprecedented layer of protection against systematic failures.

Innovation Point 2:Unified Control and Safety in a Single Platform:​Traditionally,safety and process control systems were separate(“black box”safety relays).The PM864A CPU​innovates by integrating both within the same 800xA engineering and runtime environment.Engineers can program standard PID loops and SIL 3 emergency shutdown logic using the same tools,with the system automatically handling the segregation and execution priorities.This drastically reduces engineering effort,lifecycle costs,and the potential for integration errors between separate systems.

Innovation Point 3:Advanced Fault Detection and Diagnostics:​The module is equipped with extensive internal self-diagnostics that go beyond basic health checks.It continuously monitors processor execution timing,memory integrity(using error-correcting code),and communication consistency between redundant units.Any deviation is immediately flagged,and the faulty module can be identified and replaced online via hot-swap,maintaining the system’s Safety Integrity Level(SIL)rating throughout the maintenance operation.

Application Cases and Industry Value

Case Study:Modernization of a Petrochemical Cracked Gas Compressor Safety System

A major petrochemical plant operated a legacy hardwired emergency shutdown(ESD)system for its critical cracked gas compressor.The system was difficult to modify,provided minimal diagnostics,and had unknown reliability figures.The plant embarked on a modernization project to improve safety,availability,and operational insight.The new system was built around a TMR configuration using three ABB 07DC92D GJR5252200R0101​(PM864A)controllers.

Process&Improvement:​The new safety system,programmed to SIL 2,managed complex permissives and trip logic for the compressor.The integrated nature of the 800xA platform allowed process data and safety system status to be viewed on the same operator graphics,providing unparalleled situational awareness.During commissioning,a real-time diagnostic from one of the PM864A​CPUs predicted a potential memory issue,allowing a preventative replacement during a planned turnaround.In its first year,the system prevented one potential compressor surge event through faster logic processing.The plant’s lead safety engineer reported,”The diagnostic capability and transparency of the AC 800M HI​system with the PM864A​CPUs have transformed our approach.We’re no longer just compliant;we are proactively managing our safety system’s health,which has increased operator trust and overall plant reliability.”

Related Product Combination Solutions

The ABB 07DC92D GJR5252200R0101​is the central processing unit of a comprehensive High Integrity system.Its functionality depends on and enables a suite of specialized modules:

PM802F/PM803F:​Base units for the AC 800M controller.The 07DC92D​CPU module plugs into these bases,which provide the backplane,communication,and power interfaces.

CI854/CI855:​Communication Interface modules.These allow the PM864A​CPU to communicate with other systems via PROFIBUS DP,Modbus,or other fieldbus protocols,extending its reach to remote I/O or third-party equipment.

SD821/SD822:​Safe Digital I/O modules.These are the dedicated,certified input and output modules that connect to safety field devices(e.g.,emergency stops,safety valves).They feature built-in diagnostics and are designed for use with the High Integrity controller.

TA527:​Power Supply Module.Provides conditioned 24V power to the controller baseplate and modules.In critical applications,these are also deployed in redundant configurations to match the high availability of the PM864A​CPUs.

S800 I/O with SA811:​The S800 distributed I/O system,featuring the SA811​Safety Analog Input module,allows safety-related analog signals(e.g.,pressure,temperature)to be connected remotely and communicated securely to the 07DC92D​CPU.

Companion Modules for TMR:​In a full TMR configuration,two additional 07DC92D​CPUs are required,along with specialized synchronization modules and cables to form the complete triple-redundant controller set.

Installation,Maintenance,and Full-Cycle Support

Installation of the ABB 07DC92D GJR5252200R0101​is a structured process that must follow stringent safety lifecycle procedures,especially for SIL-rated applications.The module is carefully inserted into its designated slot in the PM802F/PM803F base unit,ensuring proper alignment with the guide rails and a secure connection to the backplane.For redundant or TMR systems,the installation sequence and the connection of synchronization cables are critical and must be performed according to ABB’s detailed documentation.Electrical installation of the associated base and I/O is performed by qualified personnel,with strict adherence to separation standards for safety and non-safety signals.

Routine maintenance primarily involves monitoring the system diagnostics through the 800xA operator station.The health status of each PM864A​CPU in a redundant set is continuously displayed.The hot-swap capability allows for the replacement of a module indicated as faulty or requiring a firmware update without taking the controller offline.The faulty module can be removed,and a new one inserted;the system will automatically synchronize the replacement unit and integrate it into the redundant array.

We provide dedicated support for this mission-critical component.Given its application in safety systems,we emphasize the supply of genuine,fully tested modules.Our technical team understands the integration requirements of the AC 800M HI system and can assist with compatibility verification.We are committed to supporting the long lifecycle of your safety and critical control systems with reliable products and informed expertise.Contact us for a secure and certified solution for your most demanding automation challenges.

选择深圳长欣，选择放心，售后无忧 大量现货，当天顺丰发货！！！