Triconex 3611E Module | Digital Input for ESD & HIPPS Systems

Product Description

Overview

The Triconex 3611E is a high-reliability digital input module designed for safety-critical industrial applications.
It acquires discrete signals from field devices such as pushbuttons, limit switches, contact closures, and logic signals.
Moreover, the module leverages Triple Modular Redundancy (TMR) architecture to maintain continuous operation even in the event of hardware failures.
Certified to SIL 3, the 3611E ensures safe performance for Emergency Shutdown (ESD), Fire & Gas (F&G), Burner Management Systems (BMS), and High-Integrity Pressure Protection Systems (HIPPS).
Its robust design enables stable operation in harsh industrial environments, delivering precise signal acquisition for critical automation systems.

Technical Specifications

• Product Type: Digital Input Module (DI)

• Model Number: 3611E

• Manufacturer: Schneider Electric (Triconex brand)

• System Compatibility: Triconex SIS (Tricon/Trident platforms)

• Architecture: Triple Modular Redundancy (TMR)

• Number of Channels: 32 isolated digital input channels

• Input Signal Types: Dry contact, 24 VDC logic signals

• Input Voltage Range: 18–32 VDC typical

• Input Current: 7 mA per channel

• Isolation: Channel-to-channel and channel-to-system isolation

• Safety Integrity Level: SIL 3 compliant

• Diagnostics: Built-in self-diagnostics, fault detection, redundancy monitoring

• Operating Temperature: –20 °C to +60 °C

• Storage Temperature: –40 °C to +85 °C

• Humidity Range: 5–95% RH (non-condensing)

• Dimensions (H × W × D): 187 × 114 × 25 mm

• Weight: 1.6 kg

• Certifications: UL, ATEX, IECEx, CE

FAQ

Q1: How many digital input channels does the 3611E support?
It provides 32 isolated digital input channels for monitoring discrete signals from field devices.

Q2: What types of signals are compatible with this module?
The module supports dry contact and 24 VDC logic signals.

Q3: Is the module suitable for safety-critical systems?
Yes, it is SIL 3 certified and designed for ESD, F&G, BMS, and HIPPS applications.

Q4: Does the 3611E have built-in diagnostics?
Yes, it features self-diagnostics, fault detection, and redundancy monitoring for improved reliability.

Q5: Can it operate in harsh industrial environments?
Moreover, it operates reliably under extreme temperatures, humidity, and other industrial conditions.