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3805E

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November 26, 2025
Category Connection: Triconex
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Tags:
#Main Processor Module #Triconex 4000016-015 #Triconex Communication Module
Brief: Curious about how this performs in practice? Join us for a hands-on look at the 3805E Triconex Analog Output Module. This video provides a detailed walkthrough of its 8-channel 4-20mA output capabilities, demonstrates the Triple-Modular Redundant (TMR) architecture in action, and shows how its self-diagnostics and hot-swappable design ensure uninterrupted operation in critical applications.
Related Product Features:
  • Features Triple-Modular Redundant (TMR) architecture with three isolated channels for fault-tolerant, high-integrity control.
  • Provides eight 4-20mA analog output points with 12-bit resolution and accuracy better than 0.25% of full scale.
  • Includes continuous self-monitoring and diagnostics with internal voltage reference and current loopback per channel.
  • Supports hot-swappable replacement for online maintenance without interrupting process operation.
  • Offers diagnostic indicators for PASS, FAULT, ACTIVE, LOAD, and redundant loop power status (PWR1/PWR2).
  • Requires external loop power supply (24-42.5 VDC) and is mechanically keyed to prevent misinstallation.
  • Designed for high availability with the ability to operate through up to two channel failures.
  • Optimized for critical applications with fast switch time on leg failure (typically less than 10ms).
FAQs:
  • What is the purpose of the Triple-Modular Redundant (TMR) architecture in the 3805E module?
    The TMR architecture uses three isolated, parallel control systems with two-out-of-three voting to ensure high-integrity, error-free operation without any single point of failure, maintaining uninterrupted process control even if one or two channels fail.
  • Can the 3805E module be replaced while the system is online?
    Yes, the module is hot-swappable, allowing for online removal and replacement of a faulty module without interrupting the control process or requiring a system shutdown.
  • What do the LOAD and FAULT indicators on the module signify?
    The LOAD indicator signals an open current loop on one or more outputs, while the FAULT indicator is activated when a channel fault is detected by the module's continuous diagnostics, triggering a chassis alarm.
  • What are the power requirements for the 3805E analog output module?
    The module requires an external loop power supply of 24-42.5 VDC nominal, with specific voltage requirements depending on the load (e.g., >20 VDC for 250 ohms, >35 VDC for 1000 ohms).
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