Product Overview
The Triconex DI3311 serves as a high-integrity Digital Input Module for the Triconex Safety Instrumented System (SIS). This 100% Brand New original module utilizes a Triple Modular Redundancy (TMR) architecture to monitor 32 discrete field devices, including emergency stop buttons, limit switches, and pressure contacts. By processing every input through three isolated paths, the DI3311 ensures that no single point of failure triggers a false trip or prevents a necessary safety action. It provides the foundational data required for SIL 3-rated Emergency Shutdown (ESD) and Fire and Gas (F&G) applications.
Technical Specifications
| Feature | Technical Details |
| Model Number | DI3311 |
| Input Channels | 32 Independent Digital Points |
| Architecture | Triple Modular Redundant (TMR) |
| Safety Integrity Level | SIL 3 Compliant (IEC 61508) |
| Input Type | Discrete Digital (Dry Contact/Switch) |
| Isolation | Channel-to-System Optical Isolation |
| Diagnostics | Continuous Internal Self-Testing |
| Status Indicators | Individual Channel LEDs & Module Health LEDs |
| Operating Temp | 0 to +60 °C (32 to 140 °F) |
| Mounting | Standard Triconex High-Density I/O Rack |
Engineering Advantages
-
Triple Modular Redundancy (TMR): The DI3311 incorporates three independent input legs. Two-out-of-three (2oo3) voting logic within the module identifies and masks faults in real-time. This ensures that the safety process remains online even if one internal processing path encounters a hardware failure.
-
SIL 3 Certified Reliability: Rigorous testing and certification allow the DI3311 to operate in mission-critical environments. It meets the strict requirements of IEC 61508, making it suitable for high-risk Oil & Gas, Power Generation, and Chemical processing facilities.
-
Extensive Online Diagnostics: The module continuously monitors the health of its internal circuitry and the status of the field wiring. Built-in microprocessor-controlled diagnostics detect open circuits and ground faults instantly, reporting them to the main controller for immediate corrective action.
-
Hot-Swappable Design: Maintenance teams can replace the DI3311 while the system remains under power. This "hot-swap" capability eliminates production downtime during routine module upgrades or hardware replacements.
-
High-Density I/O Footprint: Packaging 32 safety-critical channels into a single module optimizes rack space. This density reduces the total number of chassis required for large-scale safety shutdowns, lowering the total cost of system ownership.
FAQs
-
How does the TMR architecture improve safety over standard PLCs?
Standard PLCs often utilize 1oo1 or 1oo2 architectures. The DI3311 uses three parallel circuits and 2oo3 voting, which provides significantly higher fault tolerance and eliminates "fail-to-danger" scenarios caused by a single internal component failure.
-
What type of field devices can I connect to the DI3311?
The module interfaces with any discrete voltage-free "dry" contact. Common applications include push buttons for Emergency Shutdown (ESD), limit switches for valve position feedback, and auxiliary contacts from motor starters.
-
Does the module require external calibration?
No. The DI3311 features factory-calibrated digital thresholds and internal self-calibration routines that maintain accuracy and response time throughout the module's service life.
What's clients say about us
Excellent Emergency Support!
Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.
Mark Thompson
Maintenance Manager, USAReliable Source for New Spares
Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.
Robert Hoffmann
Engineering Lead, GermanyTop-tier Service and Quality
We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.
Lucas Müller
Operations Director, GermanyRelated Products
Yokogawa RB401-S4 RIO Bus Module Remote I/O Communication
$99.00
$199.00
Digital Output Module | Yokogawa SDV541-S53 ProSafe-RS
$99.00
$199.00
Yokogawa ATR8S-00 S2 Relay Output Module CENTUM DCS Series
$99.00
$199.00
Yokogawa AAM21-S2 Analog Input Module CENTUM DCS Series
$99.00
$199.00
Yokogawa AIP512-S2 Analog Input Module CENTUM VP DCS Series
$99.00
$199.00
Terminal I/O Module Nest CENTUM DCS Yokogawa AMN31-S1
$99.00
$199.00
MRO-234-A Yokogawa Relay Output Module Interface Card
$99.00
$199.00
Power Distribution Board DCS Cabinet Module Yokogawa PDB/16
$99.00
$199.00
RB301-S2 Yokogawa CENTUM CS Bus Interface Master Module
$99.00
$199.00
Yokogawa RB401-S4 RIO Bus Interface Master Card CENTUM CS/VP
$99.00
$199.00
Analog Output Module | YOKOGAWA AAM51-S2
$99.00
$199.00
YOKOGAWA FC1*C Interface Module Card
$99.00
$199.00
AAM10-S1 YOKOGAWA | Analog Input Module
$99.00
$199.00
YOKOGAWA AAM50-S1 Analog Output Module
$99.00
$199.00
NC4*B YOKOGAWA Node Control Unit
$99.00
$199.00
YOKOGAWA NCU4*A Node Control Unit Original
$99.00
$199.00
Node Interface Module YOKOGAWA NM29*A
$99.00
$199.00
NM6*D YOKOGAWA Node Interface Module
$99.00
$199.00
YOKOGAWA NP1*C Programmable Controller CPU Module
$99.00
$199.00
YOKOGAWA S9171BG-00 PAC*A Programmable Automation Controller
$99.00
$199.00
PS31*A YOKOGAWA CENTUM VP Regulated Power Supply Module
$99.00
$199.00
Remote Control I/O Module YOKOGAWA RC1*A CENTUM VP
$99.00
$199.00
YOKOGAWA RS81*B CENTUM XL Micro XL Interface Card
$99.00
$199.00
Multi Status Input Interface Card YOKOGAWA ST2*D CENTUM VP
$99.00
$199.00
ST3*D YOKOGAWA CENTUM VP Multi Status Input Interface Card
$99.00
$199.00
HART-Enabled Analog I/O Module YOKOGAWA VM1*B CENTUM VP
$99.00
$199.00
VM1*D YOKOGAWA CENTUM VP HART-Enabled Analog I/O Module
$99.00
$199.00
YOKOGAWA VM2*D CENTUM VP HART-Enabled Analog I/O Module
$99.00
$199.00
YNT512D-Q12 YOKOGAWA CENTUM VP Bus Repeater Module
$99.00
$199.00
YOKOGAWA AAM21-S2 CENTUM CS 3000 Analog Input Module
$99.00
$199.00
AMM12T-S2 YOKOGAWA CENTUM VP Analog Input Multiplexer Module
$99.00
$199.00
YOKOGAWA F3CX04-0N FA-M3 4-Channel Pulse Input Module
$99.00
$199.00
YOKOGAWA F3AD08-4V FA-M3 8-Channel Analog Input Module
$99.00
$199.00
F3BU13-0N FA-M3 YOKOGAWA 13-Slot PLC Base Unit
$99.00
$199.00
YOKOGAWA F3LE12-0T FA-M3 Ethernet Communication Module
$99.00
$199.00
YOKOGAWA ST4*D CENTUM VP Multi Status Input Interface Card
$99.00
$199.00
YOKOGAWA F3LR02-0N FA-M3 Redundancy Interface Module
$99.00
$199.00
Power Supply Module YOKOGAWA F3PU30-0S FA-M3 Series
$99.00
$199.00
F3XC08-0C FA-M3 YOKOGAWA Digital Output Relay Module
$99.00
$199.00
YOKOGAWA F3XD16-3F FA-M3 Series Digital Input Module
$99.00
$199.00
Analog Input Output Module YOKOGAWA AAP135-S00 CENTUM VP
$99.00
$199.00
AAM11-S2 YOKOGAWA Analog Input Module Process Control
$99.00
$199.00
YOKOGAWA AAI543-S50 CENTUM VP Analog Output Module
$99.00
$199.00
F3YC08-0C YOKOGAWA FA-M3 Datasheet & Technical Manual
$99.00
$199.00
Guide
Translation missing: en.general.search.loading