I/O modules

The Honeywell 10101/2/1 Fail-Safe Digital Input Module is designed for applications that demand high reliability and operational safety. With 16 digital input channels at 24 Vdc, it provides accurate signal monitoring and advanced fault protection. This module’s fail-to-safe architecture ensures that any detected fault condition results in a de-energized signal to the control processor, maintaining system integrity in safety-critical operations.

Product Overview

The 10101/2/1 module is a key component for process automation systems where safety cannot be compromised. Built with self-diagnostic capability, it continuously checks signal integrity and channel isolation within the configured process safety time. These diagnostics include:

• Verification of logic level “0” and “1” reception.
• Detection of crosstalk between channels.
• Internal component health checks.

Moreover, its self-test functionality enhances operational assurance by detecting potential signal or hardware faults before they affect the process.

Functional Advantages

• Fail-to-Safe Design: Automatically switches to a safe de-energized state upon fault detection, ensuring the processor receives a predictable, safe input.
• Comprehensive Self-Testing: Performs regular diagnostics for both logic states and channel interference, preventing unsafe signal interpretation.
• Reliable 24 Vdc Operation: Supports stable input signals and minimizes ripple content to less than 0.5 Vp-p.
• High Noise Immunity: Crosstalk suppression guarantees clear signal separation between the 16 input channels.
• Certified Safety Compliance: Approved by CE, TÜV, and UL, and supports Software Version ≥ 3.00 for compatibility with advanced systems.

Technical Specifications

Details