Honeywell FS-16DI-RL Relay Input Terminal Board

Reliable Digital Signal Acquisition for Safety Systems

The FS-16DI-RL functions as a dedicated relay input terminal board for Honeywell Safety Manager and Experion PKS platforms . This module provides 16 isolated input channels for capturing contact closures from field devices. It accepts a nominal 24 VDC input voltage across a wide range of 10–30 VDC . Consequently, it creates a robust interface between field sensors and the control processor. The board ensures accurate signal acquisition while protecting sensitive electronics from electrical noise and transients.

Electrical Isolation and Diagnostic Capabilities

The FS-16DI-RL offers 1500V AC isolation between each channel and ground . This architecture prevents ground loops and ensures that a fault on one channel does not affect the others. Moreover, each channel features a dedicated LED status indicator for real-time diagnostics . Maintenance personnel can quickly verify field signal presence at a glance. This dramatically reduces troubleshooting time during commissioning and unexpected downtime. The module also supports line monitoring to detect open circuits and short circuits .

Robust Construction and Installation Flexibility

The FS-16DI-RL mounts easily on standard 35mm DIN rails or directly on panels . Its compact form factor of 200 x 120 x 40 mm optimizes cabinet space . Furthermore, heavy-duty screw terminals accept wire gauges from 12 to 24 AWG . This flexibility supports both thin signal wires and thicker power cables. The module operates reliably across a temperature range of –20°C to +60°C . It also holds CE, UL, CSA, and FM certifications for global industrial use .

Key Technical Specifications