DO3401 Triconex DCS digital output module

• Brand
  Triconex (Schneider Electric)
• Model
  DO3401
• Product Name
  Digital Output Module
• Country of Origin
  United States
• HS Code
  8538900090
• Dimensions
  311 mm×35.6 mm×256 mm
• Weight
  1.36 kg
• Operating Temperature
  -28 ℃ to +79 ℃
• Storage Temperature
  -20 ℃ to +70 ℃
• Power Supply
  24 V DC,0.5 A
• Warranty
  12 month
• Product Status
  New and original

Triconex DO3401 Product Introduction & Technical Specifications

Electrical & Interface Specifications

Input
1.Powered by Tricon system backplane; receives digital control logic signals from the main
2.controller via backplane bus

3.Supports TMR-voted control command input for fault-tolerant decision execution

Output

1.Channel Configuration: 32 isolated digital output channels

2.Output Type: Discrete on-off control output, compatible with 24 V DC field loads

3.Maximum Load Current per Channel: 0.5 A

4.Isolation: Galvanic isolation between field output and internal logic circuit; high noise immunity
5.for harsh industrial environments

6.Fault Detection: Short-circuit, open-circuit and over-current diagnosis for each output channel

Power Supply

1.Power Supply Source: Tricon system backplane power supply

2.Rated Operating Voltage: 5 V DC (backplane)

3.Power Consumption: ≤ 15 W

4.Operating Temperature Range: -20 ℃ to +70 ℃

Key Features & Functions

1.Adopts Triconex proprietary TMR triple-modular redundant design to eliminate single-point failure risks for safety output control

2.Provides 32-channel high-density isolated digital output for driving field safety actuators

3.Built-in real-time self-diagnosis for output short-circuit, open-circuit and over-current faults with alarm feedback to the controller

4.Supports hot-swap installation and replacement without interrupting the operation of the entire SIS system

5.Executes TMR voting logic to ensure consistent and reliable safety output commands

6.Complies with IEC 61508 SIL 3 and IEC 61511 process safety standards

7.High galvanic isolation protects the safety system from field electromagnetic interference and surge signals

8.Supports continuous output status monitoring and fault logging for maintenance and audit purposes

Application Cases

1.Oil & Gas Industry: Used for emergency shutdown (ESD) valve control, safety solenoid drive and fire & gas protection system output in refineries and offshore platforms

2.Petrochemical Industry: Applied in ethylene plants, chemical reactors and storage tank areas for safety interlock actuator control and emergency cut-off execution

3. Power Generation Industry: Deployed in thermal power and gas turbine plants for boiler safety valve control, auxiliary equipment interlock and trip signal output

4.Chemical Processing Industry: Utilized in high-risk fine chemical and hazardous material production for safety actuator on-off control and process interlock protection

5.Mining & Metallurgy Industry: Used in smelting furnace safety systems and mine equipment interlock control to drive critical safety relays and shutdown devices

Key Features & Functions

1.Adopts Triconex proprietary TMR triple-modular redundant design to eliminate single-point failure risks for safety output control

2.Provides 32-channel high-density isolated digital output for driving field safety actuators

3.Built-in real-time self-diagnosis for output short-circuit, open-circuit and over-current faults with alarm feedback to the controller

4.Supports hot-swap installation and replacement without interrupting the operation of the entire SIS system

5.Executes TMR voting logic to ensure consistent and reliable safety output commands

6.Complies with IEC 61508 SIL 3 and IEC 61511 process safety standards

7.High galvanic isolation protects the safety system from field electromagnetic interference and surge signals

8.Supports continuous output status monitoring and fault logging for maintenance and audit purposes