Description
Product Overview
The DO 3401S2 Digital Output Module from Triconex delivers high-integrity control for safety instrumented systems. Designed for Tricon Systems, this module includes 16 independently isolated output channels with complete electrical separation.
Each channel in the DO 3401S2 contains its own microprocessor, communicating asynchronously with the system’s main processors. The module uses hardware-based voting logic across three processing paths to ensure fault-tolerant operation.
The DO 3401S2 maintains SIL3 certification, making it suitable for emergency shutdown systems and other critical safety functions. Its diagnostics continuously monitor output health without interrupting field operations.
Engineers rely on the DO 3401S2 to control final elements such as solenoid valves and motor starters. Its robust design prevents fault propagation and supports uninterrupted performance in hazardous environments.
Technical Specifications
| Parameter |
Specification |
| Model Number |
DO 3401S2 |
| Manufacturer |
Triconex |
| Product Range |
Tricon Systems |
| Module Type |
Digital Output Module |
| System |
DCS |
| Channels |
16 Isolated Digital Outputs |
| Architecture |
Triple-Modular Redundant (TMR) |
| Voting Logic |
Hardware-based, three-channel |
| Diagnostics |
Continuous output health monitoring |
| Certifications |
IEC 61508 SIL3, ATEX, cULus |
| Operating Temp. |
-40°C to 70°C |
| Dimensions |
4.3 × 18.8 × 21.8 cm |
| Weight |
1.3 kg |
| HS Code |
8537101190 |
| Communication |
Ethernet Router |
| Condition |
Brand New |
| Lead Time |
In Stock |
| Minimum Order |
1 Unit |
| Origin |
USA |
| Discontinued |
Active |
Applications & Compatibility
The DO 3401S2 integrates with Tricon controllers and supports:
-
Emergency Shutdown (ESD) systems
-
Solenoid valve and motor starter control
-
Oil & gas, chemical, and power generation facilities
-
Safety Instrumented Systems (SIS) requiring SIL3 compliance
