ALL CATEGORIES

Seller Center
- Product Management
  
  Post Product
  
  Manage Products
  
  Featured Products
- Blog Management
  
  Post Blog Article
  
  Manage Blog Articles
  
  Manage Blog Categories
- Inquiry Management
  
  My Inquiries
  
  Buying Requests
- Analytics Center
  
  Performance Dashboard
  
  Product Analytics
  
  Visitor Analytics
Connect Your Store to WeChat

Follow Our Official Service Account
Manage Products & Inquiries Anywhere
Seller Services

Seller Services

Goldsupplier.com: 20 years of Global Trade Expertise, Empowering Your Business to Go Global!

Join GoldSupplier.com

Free & Instant Registration

Showcase Company & Products

Access Global Buying Requests

Register Now

Activate Verified Supplier Membership

Priority Verified Visibility

Claim Exclusive Buying Requests

Automated Multi-language Store

Verified Now

Launch Your EasyOcean Website

Full-Service Website Management

Google Page 1 Guarantee

Enhanced Brand Credibility

Launch Now
Buyer Services
Post Buying Request

Browse Product Categories

Featured Suppliers
Contact Platform Support

Help Center

Home > Electrical & Electronics > Electrical Control System > TRICONEX AT-2701FX 843-000844-00 REVD I/O Module Card

TRICONEX AT-2701FX 843-000844-00 REVD I/O Module Card

TRICONEX AT-2701FX 843-000844-00 REVD I/O Module Card photo-1

Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)

Key Specifications

Get Latest Price

Material:

Other, Global universal model

Condition:

Other, Global universal model

Task:

Other, Global universal model

Contact Supplier Request Quote Chat Now

Guizhou Yuanmiao Automation Equipment Co., Ltd.

Payment & Shipping

Payment Methods:

Port of Shipment:

guizhou

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
Contact Us

Material Other, Global universal model

Condition Other, Global universal model

Task Other, Global universal model

Mathematical Model Other, Global universal model

Signal Other, Global universal model

Customized Non-Customized

Structure Other, Global universal model

Operating Temperature -20℃~70℃

Relative Humidity 5% - 95% (non-condensing)

Storage Temperature -40℃~85℃

Dimensions 160mm×120mm×80mm

I. Product Overview

The AT-2701FX 843-000844-00 is a crucial component of the TRICONEX Safety Instrumented System (SIS). It is designed to accurately monitor and control key parameters in industrial processes, providing solid guarantees for the safe and stable operation of production processes. Relying on its advanced technical architecture and reliable hardware design, this product can operate continuously and stably in harsh industrial environments.

II. Core Features

High-Reliability Redundant Design

It adopts Triple Modular Redundancy (TMR) technology. Similar to other products in the TRICONEX series, the core circuits and processing units inside this module consist of three identical and independent sub-circuits. Each sub-circuit independently executes control programs and data processing tasks, and performs "voting" on input and output data through dedicated hardware and software mechanisms. This design significantly reduces the impact of single-point faults on the overall operation of the system. Even if one sub-circuit fails, the system can still operate stably based on the results from the other two normal sub-circuits, ensuring the system availability reaches over 99.9998%. For example, in the Emergency Shutdown System (ESD) of petrochemical equipment, if a signal acquisition channel fails, the TMR redundancy mechanism can automatically shield the faulty channel and maintain the system's accurate judgment of the equipment status based on data from other normal channels, avoiding serious consequences such as incorrect shutdown or failure to shut down in a timely manner caused by wrong signals.

Strong Environmental Adaptability

In industrial production, environmental conditions are often harsh. The AT-2701FX 843-000844-00 can operate normally within an extreme ambient temperature range of -20°C to +70°C, withstanding both high-temperature heatwaves and cold low temperatures. Meanwhile, it has excellent anti-corrosion performance, and its coating meets the strict G3 level standard in ISA S71.04. It can effectively resist erosion from various corrosive gases and liquids present in the production environments of chemical, oil refining and other industries, ensuring the product operates stably for a long time under harsh working conditions and reducing equipment failures and maintenance costs caused by environmental factors.

Wide Communication Compatibility

It supports a variety of industrial standard communication protocols, including Modbus TCP/IP master and slave, RS485 Modbus master and slave, and OPC UA (Unified Architecture). This enables seamless integration and efficient data interaction with various automation equipment and control systems in the factory. For instance, in large-scale oil refining and chemical enterprises, it can be easily connected to Distributed Control Systems (DCS) such as EcoStruxure Foxboro DCS through specific protocols to achieve data sharing and collaborative work. It provides operators with comprehensive and accurate production process information, helping to optimize production control decisions.

Advanced System Diagnostic Capability

It is equipped with comprehensive and in-depth self-diagnostic functions, with a system diagnostic coverage rate of over 99.98%. It can real-time monitor its own hardware status (including processor performance, memory usage, communication link status, etc.) and the operating status of connected external equipment (such as whether the sensor signal is normal and whether the actuator action is in place). Once a fault is detected, it can trigger a fault alarm within an extremely short time (usually in milliseconds) and transmit detailed fault information (including fault type, fault location, and fault occurrence time) to the upper computer via the system bus. This facilitates maintenance personnel to quickly locate and resolve problems, significantly shortening the Mean Time To Repair (MTTR) and ensuring the continuity of the production process.

III. Functions and Working Principles

Monitoring and Control Function

It collects various process parameters in industrial sites in real time, such as pressure, temperature, flow rate, and liquid level. Through internal precision signal processing circuits and algorithms, the collected analog signals are converted into digital signals, and processes such as filtering, amplification, and calibration are performed to obtain accurate parameter values. Then, based on preset control logic and safety thresholds, the collected data is analyzed and judged. When the parameter value exceeds the normal range, corresponding control actions are quickly triggered, such as activating alarm devices, controlling actuators for adjustment operations, or triggering emergency shutdown procedures, ensuring the production process is always in a safe and controllable state.

Communication Function

It conducts data interaction with other equipment through built-in communication interfaces and communication protocol stacks. When communicating with the upper computer, it uploads processed process data, equipment status information, etc., to the monitoring system, providing operators with intuitive and accurate production operation interfaces and facilitating real-time grasp of production conditions. At the same time, it receives control instructions and parameter modification commands issued by the upper computer, and accurately transmits them to relevant execution units to realize remote monitoring and control functions. When communicating with other on-site equipment, it can conduct data interaction with devices such as sensors and actuators, coordinate the work among various equipment, and jointly complete complex production control tasks.

Working Principle

Based on a triple modular redundancy architecture, the three independent sub-circuits inside the product collect and process input signals simultaneously. Each sub-circuit has independent signal conditioning modules, A/D conversion modules, microprocessors, and communication modules. The input signal first undergoes preprocessing (such as filtering, amplification, and isolation) through the signal conditioning module to improve signal quality. Then, the analog signal is converted into a digital signal through the A/D conversion module and sent to the microprocessor for data processing and control logic operations. After the three sub-circuits complete processing, the results are transmitted to the voting module. The voting module compares and judges the three results according to a preset voting algorithm (such as two-out-of-three voting), and finally outputs a consistent result as the effective output of the system. This working method not only improves the reliability of the system but also enhances the system's resistance to interference and noise, ensuring accurate and stable operation even in complex electromagnetic environments.

IV. Application Fields

Petrochemical Industry

In key process links such as catalytic cracking units and ethylene production units in oil refineries, it is used to monitor parameters such as reaction temperature, pressure, and flow rate, ensuring the safe and stable operation of the units and preventing major safety accidents such as explosions and leaks caused by abnormal parameters. At the same time, it plays a core role in safety instrumented systems such as emergency shutdown systems and high-integrity pressure protection systems, safeguarding the intrinsic safety of the production process.

Power Industry

It is applied in boiler control systems and steam turbine control systems of thermal power plants, as well as reactor protection systems of nuclear power plants. It monitors key parameters such as boiler water level, steam pressure, and steam turbine speed in real time, adjusts control strategies in a timely manner to ensure the efficient and stable operation of power generation equipment, and promptly takes protective measures when abnormal situations occur to prevent equipment damage and accident expansion.

Pharmaceutical Industry

In the pharmaceutical production process, it accurately controls parameters such as reactor temperature, pressure, and stirring speed, ensuring the stability and consistency of pharmaceutical quality. Meanwhile, in cleanroom environment monitoring systems, it is used to monitor environmental parameters such as temperature, humidity, and pressure difference, ensuring the pharmaceutical production environment meets GMP (Good Manufacturing Practice) standards.

Product Tags: TRICONEX , AT-2701FX , 843-000844-00