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TRICONEX AT-2701FX 843-000844-00 Network Interface Module

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Key Specifications
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Material:
Other, Global universal model
Certification:
CE
Function:
Other, Global universal model
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Guizhou Yuanmiao Automation Equipment Co., Ltd.
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Material Other, Global universal model
Certification CE
Function Other, Global universal model
Condition New
Task Following
Mathematical Model Non-Linear
Signal Continuous
Customized Non-Customized
Structure Open-Loop

The AT-2701FX 843-000844-00 is a high-performance, high-availability communication interface module designed for Triconex safety systems. It serves as a "network gateway" in the Tricon system and acts as a critical bridge connecting the Tricon safety controller to the upper-level network infrastructure.

Key Terminology Explanation (for Clarity in Industrial Context)

  • High-availability: In industrial control systems, this term emphasizes the module’s ability to maintain stable operation for extended periods, with built-in mechanisms to minimize downtime—critical for safety-related systems where interruptions could lead to process risks.

  • Communication interface module: A hardware component that enables data exchange between different devices or network layers, translating protocols or signal formats to ensure seamless connectivity.

  • Upper-level network: Refers to higher-tier networks in an industrial setup (e.g., supervisory control and data acquisition (SCADA) networks, enterprise resource planning (ERP) networks) that handle tasks like centralized monitoring, data logging, or production management. The module facilitates data flow between the Tricon safety controller (a lower-level, real-time control device) and these upper networks.

TRICONEX AT-2701FX 843-000844-00 REVD (3)

1. Core Functions

  • Engineering Station Connection (TriStation Access): Provides a connection path for the primary engineering software, TriStation 1131, to access the Tricon controller for programming, configuration, debugging, real-time monitoring, and diagnostics. This is its most fundamental and critical function.

  • External System Communication (Host/Peer-to-Peer Communication): Acts as a communication gateway for data exchange between the Tricon controller and external systems (such as DCS, PLC, SCADA, and information management systems).

  • Multi-Protocol Support: It supports a variety of industrial communication protocols to enable interconnection and interoperability with devices from different manufacturers.

2. Key Features and SpecificationsPhysical Interfaces

  • The front panel of the module is equipped with two RJ45 ports, which are used for 10/100 Mbps Ethernet connections.

  • Typically, one port is used to connect to the engineering network (for communication with TriStation workstations), and the other port is used to connect to the plant information network (for communication with host systems like DCS). This dual-port design enhances network reliability and isolation.

Supported Protocols

  • TriStation Protocol: Used for native and efficient communication with the TriStation 1131 engineering software.

  • Modbus TCP/IP: A widely used industrial Ethernet protocol. The AT-2701FX can function as a Modbus TCP server (slave), allowing Modbus TCP-supported clients (such as DCS and SCADA) to read and write data in the Tricon controller (e.g., process variables, alarm statuses).

  • TriStation TCP/IP (TSTCP): A high-performance proprietary protocol developed by Triconex, designed for high-speed data exchange with advanced applications or dedicated clients.

High Availability Design

  • In a redundant Tricon configuration (e.g., dual-machine hot standby), two AT-2701FX modules can be installed to form a redundant communication channel, ensuring that the network connection does not become a single point of failure.

  • Supports advanced network functions like link aggregation to further improve network bandwidth and reliability.

LED Indicators
The front panel is equipped with a comprehensive set of status LEDs, which are used for quick diagnosis of module health, power status, network link status (Link/Act), network activity, and communication status of each port.
Hot-Swappable Support

It supports installation or removal without powering down the system (within the scope permitted by system planning), facilitating maintenance and upgrades.

TRICONEX AT-2701FX 843-000844-00 REVD (7)

3. Application and Position in the SystemInstallation
The AT-2701FX module is inserted into a dedicated communication slot in the Tricon Chassis. It is important to note that it is not installed in standard I/O slots; instead, specific slots are designated for this type of communication module.
Connection

  • Connect one port to the network switch where the engineering/operator stations are located using an Ethernet cable.

  • Connect the second port to the network switch of the DCS or other upper-level systems using another Ethernet cable.

Configuration
The communication functions of the module (such as IP address settings and protocol enabling) need to be configured together when the entire Tricon system is configured in the TriStation 1131 software.
4. Compatibility and Application BackgroundCompatible Systems
It is mainly used for the Tricon CX platform (e.g., Trident, Tricon CX II 11.3 and later versions). It is the standard network interface for the newer generation of Tricon systems.
Previous-Generation Products
In older v9, v10, and v11 systems, common network modules included NCM (Network Communications Module) or COMM-A/B/C modules. The AT-2701FX is a newer replacement with higher performance.
Application Industries
It is suitable for all process industries with extremely high requirements for safety and reliability, and serves as the standard communication channel for Tricon systems to interact with external systems, including:


  • Oil and Gas (offshore platforms, refineries)

  • Chemical and Petrochemical

  • Power Plants (thermal power, nuclear power)

  • Pharmaceuticals

5. Summary Overview
Feature Details
Manufacturer Triconex (now part of Schneider Electric)
Module Type Network Interface Module (Dual-Port Ethernet)
Part Number 843-000844-00 (AT-2701FX is the model designation)
Core Function Provides Ethernet connectivity for TriStation 1131 and external hosts (DCS/SCADA)
Communication Protocols TriStation, Modbus TCP/IP (Server), TriStation TCP/IP (TSTCP)
Interfaces 2 x 10/100 Mbps RJ45 Ethernet Ports
Key Features Dual-port redundancy, high availability, hot-swappable, supports secure communication
Compatible Systems Tricon CX Platform (e.g., Trident, Tricon CX II)

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

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Guizhou Yuanmiao Automation Equipment Co., Ltd.
Verified Business License
Business Type
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Year Established
2014
Factory Size
1,000-3,000 square meters
Product Certifications
SA8000
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