Product Overview
The Triconex 3301 functions as a high-availability digital input module for Triconex Safety Instrumented Systems. It interfaces with field contacts, pushbuttons, and switchgear to bring critical status signals into the safety logic solver. This module ensures reliable monitoring of discrete processes demanding the highest integrity.
Key Technical Specifications
Engineers depend on this module for its robust design and comprehensive diagnostic coverage. Its Triple Modular Redundant architecture guarantees fault-tolerant operation. Below, we outline the core technical parameters.
| Specification | Details |
|---|---|
| Product Type | Triple Modular Redundant (TMR) Digital Input Module |
| Manufacturer | Triconex (Schneider Electric) |
| Series | Triconex Safety Instrumented Systems (SIS) |
| Input Channels | 32 isolated digital input channels per module |
| Input Voltage Rating | Nominally accepts 24 VDC or 48 VDC field signals (model variant dependent) |
| Input Range | Typically 0–32 VDC for 24 VDC versions, with programmable thresholds |
| Field Isolation | Provides 1500 VDC optical isolation per channel group |
| Module Diagnostics | Continuous online monitoring with fault reporting to the logic solver |
| Current Consumption | Draws approximately 500 mA maximum from the 5 VDC backplane supply |
| Power Dissipation | Typically 6.5 Watts maximum |
| Physical Dimensions (HxWxD) | Standard Triconex module: 9.1 in x 1.2 in x 6.3 in (23.1 cm x 3.0 cm x 16.0 cm) |
| Weight | Approximately 1.6 lbs (0.73 kg) |
Detailed Features and Benefits
TMR Architecture for Unmatched Safety and Availability
The Triconex 3301 utilizes a Triple Modular Redundant design for each of its 32 input channels. It processes every field signal through three independent circuits on the module. Consequently, a single component failure cannot cause a spurious trip or prevent a valid trip.
Precise and Programmable Input Thresholds
You can configure individual input thresholds to match your specific field device requirements. This programmability allows the module to distinguish reliably between ON and OFF states. Therefore, you achieve accurate and noise-immune status monitoring for your safety applications.
Comprehensive Online Diagnostics for Critical Integrity
The 3301 module performs continuous, automated self-testing during normal plant operation. It immediately detects and reports any internal fault to the main processor. This feature ensures you always know the health of your input monitoring paths.
Robust Field Isolation for System Protection
Full 1500 VDC galvanic isolation protects the Triconex backplane and logic from field-side electrical faults. This isolation prevents ground loops and voltage transients from compromising the safety system. As a result, you maintain safe and reliable operation even in harsh industrial environments.
Details
| Weight | 0.595 kg |
|---|---|
| Dimensions | 18 × 225 × 209.7 mm |
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