Overview
Manuals
Safety Instrumented System (SIS) Context
How It Works
Features:
- Tricon Low Density Chassis Internal Interface Module
- Triconex Tricon Safety Instrumented System (SIS)
- Specifically serves as an Analog Input Module configured for current inputs (converting to 0-5 V signal levels)
The TRICONEX 2700 / 2700-2 is a high-performance input/interface control module designed for hazardous industrial environments. It is a core component of Schneider Electric's (formerly Invensys) Tricon Safety Instrumented System (SIS). This module features robust signal acquisition and high-level isolation capabilities, integrating multiple analog inputs (e.g., 0-5V/0-10V) and digital channels. It accurately acquires and monitors critical process parameters such as current and voltage from field sensors, while providing up to 1500V of electrical isolation protection to prevent damage to the main control system from external electromagnetic interference or high-voltage surges.
Furthermore, this module boasts excellent fault tolerance and real-time diagnostic capabilities, meeting international Safety Integrity Level (SIL) 3 certification standards. It not only provides uninterrupted safety assurance for critical systems such as gas turbine control, emergency shutdown (ESD), and fire and gas monitoring (F&G), but also supports highly demanding online hot-swappable functionality.
The 2700 2700-2 Invensys Triconex Input control module may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Invensys Triconex 2700 2700-2 Input control module INFO, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
1.System Integration: Designed for direct mounting into dedicated Tricon chassis, featuring an isolated, enhanced fault-tolerant architecture.
2.Target Applications: Suitable for highly automated process environments such as refineries, petrochemical plants, and nuclear power plants.
3.Lifecycle Status: This low-density hardware family belongs to an earlier Tricon topology (dating back to the 1990s and beyond) and is currently primarily used as certified legacy spare parts for maintaining operating plants.
1. Parallel Acquisition: When physical signals from field sensors enter the module, three completely independent internal channels (Channels A, B, and C) simultaneously and independently sample and digitize these signals in parallel.
2. Hardware Voting: Processed data is sent to the main processor via a dedicated control bus. At this stage, the system employs a proprietary hardware/software 2002 (3:2) voting mechanism. For digital signals, majority voting is used; for analog signals, an intermediate value selection algorithm is used to eliminate abnormal deviations caused by aging or interference from individual channel components.
3. Isolation and Interlocking: Because the three channels are completely electrically and logically isolated, any single hardware failure will not propagate to the other channels. If the data from one channel is inconsistent with the voting results of the other two channels, the system immediately identifies it as a fault and triggers a logic alarm. Simultaneously, it continues to execute correct output control based on the voting results of the remaining two normal channels, thus achieving "fault-tolerant operation" and seamless fault tolerance without interrupting any industrial production processes.
