TRICONEX 3806E Triple Modular Redundancy (TMR) Analog Output Module

The TRICONEX 3806E is a high-performance, highly reliable Triple Modular Redundancy (TMR) analog output module, belonging to the Triconex Trident Safety Instrumented System series. Below is its comprehensive detailed information:

1. Technical Parameters

Architecture: Triple Modular Redundancy (TMR)
Safety Integrity Level (SIL): TÜV-certified to IEC 61508 SIL 3
Number of Output Channels: 8 analog output channels
Output Signal Types: 6 channels of 4–20mA, 2 channels of 20–320mA (high current)
Accuracy: <0.25% FSR (for 4–20mA range), <0.25% FSR (for 0–21.2mA and 0–3392mA ranges)
Resolution: 12-bit
Isolation: Non-isolated (common ground return, DC-coupled)
Loop Power Supply: Requires external loop power supply (redundancy supported); external loop power supply requirement: +24 VDC (nominal), maximum +42.5 VDC
Load Resistance: 250Ω for 4–20mA, <275Ω for 20–320mA

2. Product Features

High Reliability: Adopts a Triple Modular Redundancy (TMR) architecture. Each analog output signal is generated and processed by three independent internal circuits of the module, and hardware-implemented voting logic is used to detect and correct faults in any single output channel. It has obtained TÜV certification and complies with the IEC 61508 SIL 3 safety integrity level.
High Precision: With 12-bit resolution and accuracy of less than 0.25% FSR, it ensures the accuracy and stability of analog output.
Comprehensive Diagnostic Functions: Equipped with comprehensive on-board diagnostic functions and self-test capabilities. It can monitor its own current output, maintain an internal voltage reference for self-calibration, and each channel is equipped with a current loopback circuit to independently verify the accuracy and presence of analog signals.
Hot-Swappable Capability: Supports on-line hot swapping—faulty modules can be replaced without shutting down the system, significantly reducing maintenance time and downtime costs.
Support for Redundant Loop Power Supply: The module supports redundant external loop power input, further enhancing power supply reliability and avoiding output interruption caused by single-point power supply failure.

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