Triconex

Triconex 3481 / AO3481 Analog Output Module

SKU AO3481

In stock
  • 12-month warranty
  • Free returns within 30 days

  • Manufacturer: Triconex

  • Product No.: AO3481

  • Country of origin:United States

  • Product Type: Analog Output Modules

  • Payment: T/T, Western Union

  • Weight: 1100g

  • Dimensions: 30.5 cm x 7.6 cm x 26.7 cm

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

The Triconex 3481 (AO3481) is an analog output module designed for controlling analog field devices in Tricon safety-critical systems. Operating on a Triple Modular Redundant (TMR) architecture, the 3481 processes output data received over the system I/O bus from Main Processor modules and converts digital values into 4-20 mA analog output current signals. The module incorporates three independent execution channels to ensure fault tolerance and output voting before current delivery to connected final control elements.

Features

  • TMR architecture for high reliability in safety-critical control loops
  • 4-20 mA current loop output generation
  • Onboard diagnostic checking and status reporting via module indicators
  • Galvanic isolation between logic side and field control circuitry
  • Online hot-swappable installation without process interruption

Applications

  • Emergency Shutdown (ESD) systems
  • Fire and Gas (F&G) detection and control systems
  • Burner Management Systems (BMS)
  • Turbomachinery control and protection

Technical Specifications

Parameter Specification
Manufacturer Triconex / Invensys
Model 3481
Module Type Analog Output Module (AO3481)
Output Signal Range 4 to 20 mA
System Architecture Triple Modular Redundant (TMR)
Compatibility Tricon Main Chassis / I/O Expansion Chassis

Installation Guidelines

  • Chassis Slots: Insert the module into the designated analog output slot on the primary or expansion chassis backplane.
  • Hot Swap Procedure: When replacing an active module, ensure the secondary slot keying matches before inserting the replacement card.
  • Wiring: Connect field wiring to the corresponding external termination panel (ETP) screw terminals to prevent mechanical stress on module connectors.

FAQ

What output signal range does the module provide?
The module delivers standard 4 to 20 mA current loop output signals to field equipment.

Does the module support hot-swapping during operation?
The module supports online replacement without interrupting active process operations.

Which architecture is utilized for output execution?
The module utilizes a Triple Modular Redundant architecture across three isolated execution channels.

View all FAQs →

AO3481
AO3481
Triconex 3481
Triconex 3481
1 / 4
Quantity
Call sales Contact
Shipping & Returns

Global Express Shipping

  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
Reviews

More from this brand

Triconex 4200 / REM 4200 Primary Remote Extender Module
4200Triconex 4200 / REM 4200 Primary Remote Extender Module
Triconex 4329 / NCM 4329 Network Communication Module
NCM4329Triconex 4329 / NCM 4329 Network Communication Module
Triconex 4351B Tricon Communication Module (TCM)
4351BTriconex 4351B Tricon Communication Module (TCM)
Triconex DI3301 Digital Input Module (DI 3301) | Triple Modular Redundant
DI3301Triconex DI3301 Digital Input Module (DI 3301) | Triple Modular Redundant
  • AO3481
  • AO3481
  • Triconex 3481
  • Triconex 3481
1 4
Only 5 item(s) left in stock
View full details
Product Description
Shipping Returns
Additional details
Reviews

Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
United States

Technical knowledge

Beckhoff IPC used for a first TwinCAT PLC project

First TwinCAT PLC Project on a Beckhoff IPC

Build and verify a first TwinCAT PLC project on a Beckhoff IPC. This checklist covers target selection, EtherCAT discovery, I/O mapping, safe activation, restart tests, and commissioning records.

OPC UA industrial connectivity software diagram for server commissioning

Commissioning OPC UA in KEPServerEX: A Field Checklist

A practical commissioning sequence for KEPServerEX OPC UA connections: define data ownership, test tags locally, configure endpoint and certificate trust, limit access, then verify failure recovery...

Laptop Ethernet settings used during PLC commissioning

Set a PLC Commissioning Laptop IP Without Losing Access

Commissioning an Ethernet-connected PLC often starts with the laptop, not the controller. Learn how to record existing settings, choose a temporary address, test connectivity, and restore the plant...

How Combustible Dust Hazards Affect Automated Process Control

Designing Automation for Combustible Dust Hazards

Combustible dust controls require more than alarms. Learn how to map dust generation, select instrumentation, design interlocks, handle failed feedback, test safe states, and maintain the full...

Rectangular hairpin conductors installed in an electric motor stator

Hairpin Stators: Benefits, Limits, and Inspection

Hairpin windings raise slot fill and support compact traction motors, but conductor geometry, AC losses, insulation damage, weld quality, and cooling determine whether the design meets its targets.

Ansible control node managing SCADA infrastructure hosts

Using Ansible for Controlled SCADA Server Changes

Use Ansible to standardize SCADA server changes without expanding OT risk. This guide covers inventories, idempotent playbooks, staged testing, credentials, logging, and practical rollback controls.