ICS Triplex T7411F Digital Input Module

Description

The ICS Triplex T7411F is a high-density Digital Input module designed for use within the Regent Guarded Fault Tolerant system. It provides 32 isolated input channels, serving as a critical interface for monitoring field switches, sensors, and contacts in safety-instrumented systems (SIS) and fire and gas applications.

Specifications

• Channel Density: 32 non-multiplexed digital input channels.

• Input Voltage: 24 Vdc nominal (operating range 18 to 32 Vdc).

• Safety Rating: Suitable for SIL 2 and SIL 3 safety configurations.

• Input Type: Current-sinking, opto-isolated inputs.

• Input Threshold: Transition typically at 11 Vdc (Logic 0 to 1).

• Power Consumption: 5 W typical; 10 W maximum under full load.

• Update Rate: 1 ms for all 32 channels.

• Isolation: 2500 Vdc channel-to-logic; 500 Vdc channel-to-channel.

• Operating Temperature: 0°C to +60°C (32°F to 140°F).

Features

• Guarded Fault Tolerance: Incorporates internal redundancy to ensure that no single component failure prevents the correct reporting of field status.

• Sequence of Events (SOE): Supports high-precision time-stamping of input state changes for chronological post-incident analysis.

• Comprehensive Self-Testing: Performs continuous background diagnostics on input circuitry, including opto-isolators and internal logic buses.

• Individual Channel LEDs: Features front-panel status indicators for each of the 32 channels to assist with local troubleshooting and commissioning.

• Hot-Swap Support: Allows for the replacement of the T7411F module while the system is powered and online without affecting other modules.

• Configurable Input Filters: Includes software-adjustable digital filtering to eliminate contact bounce and electrical noise from field wiring.