Honeywell FC-BSDI-16UNI Universal Digital Input Module

Overview

The Honeywell FC-BSDI-16UNI is a rugged universal digital input module designed for Experion PKS Series C and Safety Manager architectures. It processes sixteen isolated channels with consistent accuracy, making it suitable for safety-critical environments. Moreover, the module handles both dry and wet contact inputs, allowing flexible system engineering without additional interface hardware. Each channel delivers stable signal recognition, and the module integrates diagnostic functions that support dependable system performance.

Key Features

The FC-BSDI-16UNI supports normally open or normally closed configurations to match diverse field-signal conditions. In addition, its isolation design reduces electrical noise and protects upstream controllers from transient disturbances. The module offers strong immunity to industrial interference, helping operators maintain stable system operation during demanding plant activities. Its universal signal capability simplifies project design, while built-in diagnostics enhance situational awareness and reduce troubleshooting time.

Technical Specifications

General

• Model: FC-BSDI-16UNI

• Type: Universal Digital Input Module

• Manufacturer: Honeywell

Electrical Characteristics

• Input Channels: 16 isolated digital inputs

• Input Types: Dry contact, sourced or sinked DC voltage

• Voltage Range: 0–30 VDC

• On-State Threshold: ≥12 VDC

• Off-State Threshold: ≤5 VDC

• Input Impedance: Approximately 10 kΩ

• Isolation: Channel-to-channel isolation

• Diagnostics: Integrated fault and status monitoring

Environmental & Physical

• Design: Industrial-grade housing for harsh environments

• Weight: 0.5 kg

• Compatibility: Experion PKS Series C I/O and ELD CC safety cards

Typical Applications

This module suits safety instrumented systems where deterministic digital input processing is essential. Moreover, it works effectively in oil and gas facilities, chemical production lines, and power generation units that require continuous monitoring of switches, interlocks, and field sensors. Integrators rely on its consistent performance to support high-availability distributed control systems.

Support & Maintenance

The FC-BSDI-16UNI provides onboard diagnostics that simplify maintenance tasks and shorten recovery times during field service. In addition, its robust construction offers long-term reliability in installations that operate around the clock. Users can integrate the module into existing Experion PKS and Safety Manager installations without extensive engineering changes.

FAQ

Q1: Does the module support both dry and wet contacts?
Yes, the FC-BSDI-16UNI accepts dry contact and DC-voltage wet contact inputs.

Q2: Can individual channels be configured as NO or NC?
Yes, each digital input channel supports normally open or normally closed modes.

Q3: Is the module suitable for safety-critical systems?
Yes, it is commonly deployed in Safety Manager architectures and SIS environments.

Q4: What diagnostic features are available?
The module provides internal fault detection and channel-level health monitoring.

Q5: Does it offer channel-to-channel isolation?
Yes, the design includes isolation that enhances noise immunity and system safety.