Product Overview
The Honeywell FC-SDI-1624 is a high-performance 16-channel digital input module engineered exclusively for seamless integration with Honeywell’s Experion PKS (Process Knowledge System) and compatible industrial control platforms (DCS/PLC). Designed to act as the "sensory interface" between field devices and control systems, the Honeywell FC-SDI-1624 collects discrete on/off signals from critical components—such as limit switches, emergency stop buttons, valve position sensors, and pump status indicators—delivering real-time status data to optimize operational visibility. Its ruggedized construction withstands harsh industrial conditions, including wide temperature fluctuations (-10°C to +60°C), electrical interference, and mechanical vibration, making it a staple in petrochemical refineries, power generation facilities, and chemical processing plants. The Honeywell FC-SDI-1624 adheres to global safety and industrial standards (IEC 61000-6-2, UL 508, CSA C22.2 No. 14) and includes advanced diagnostic tools to minimize unplanned downtime, ensuring reliable performance in mission-critical monitoring applications. Whether used for system expansions, legacy DCS retrofits, or new Experion PKS installations, the Honeywell FC-SDI-1624 is a trusted solution for scalable, accurate digital signal acquisition.
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Technical Specifications
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Parameter
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Value
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Product Model
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Honeywell FC-SDI-1624
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Manufacturer
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Honeywell
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Product Type
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16-Channel Industrial Digital Input Module
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Input Signal Type
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Dry contact (NO/NC) / Wet contact (24V DC PNP/NPN, selectable per channel)
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Input Voltage Range
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18-32V DC (wet contact); 0V DC (dry contact, powered externally)
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Input Current
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5mA max per channel (wet contact)
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Response Time
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≤1ms (for signal detection)
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Operating Temperature
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-10°C to +60°C (14°F to +140°F)
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Power Supply
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24V DC (18-32V DC), 5W max consumption
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Communication Protocol
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Honeywell FLEXBUS (native to Experion PKS); Modbus TCP/IP (via Experion gateway)
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Isolation
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2.5kVrms (channel-to-channel, channel-to-power supply)
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Mounting Type
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DIN rail (35mm standard) / Backplane mounting (Honeywell Experion PKS racks)
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IP Rating
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IP20 (front panel); IP40 (when installed in Honeywell-certified enclosures)
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Key Features and Benefits
The Honeywell FC-SDI-1624 leverages Honeywell’s decades of industrial control expertise, offering technical advantages that address the unique demands of large-scale digital monitoring applications.
Native Experion PKS Integration
Optimized for Honeywell’s Experion PKS DCS, the Honeywell FC-SDI-1624 connects directly to Experion control engines (C200, C300, C500) without requiring third-party adapters. This native compatibility streamlines configuration via Honeywell’s Control Builder software, eliminating integration delays and ensuring synchronized data flow between the module and the central HMI. For example, in a refinery’s distillation unit, the module can instantly relay valve position signals to the Experion system, enabling operators to quickly identify stuck valves and prevent process disruptions.
16-Channel Scalability with Flexible Inputs
With 16 independently configurable channels, the Honeywell FC-SDI-1624 supports both dry and wet contacts—adapting to diverse field devices. Dry contact mode works with passive sensors (e.g., mechanical limit switches), while wet contact mode powers active devices (e.g., electronic pressure switches via 24V DC). This flexibility reduces the need for multiple modules, simplifying cabinet design and lowering hardware costs. For instance, in a power plant’s turbine room, the module can monitor 8 pump status sensors (wet contact) and 8 emergency stop buttons (dry contact) simultaneously.
Ultra-Fast Response Time
With a signal response time of ≤1ms, the Honeywell FC-SDI-1624 ensures critical status changes (e.g., emergency stop activation, valve failure) are detected and relayed to the control system in near-real time. This speed is vital for safety-critical applications—such as chemical batch processing—where delayed detection of a faulty sensor could lead to overpressure incidents or product contamination.
Robust Noise and Fault Protection
Equipped with 2.5kVrms galvanic isolation and EMI/RFI shielding, the Honeywell FC-SDI-1624 rejects electrical interference from nearby motors, VFDs, or high-voltage equipment. This prevents false signals (e.g., a "pump running" alert when the pump is off) that could compromise operational accuracy. Additionally, built-in overvoltage protection safeguards the module from power surges, extending its service life in unstable electrical environments (e.g., offshore platforms).
Advanced Diagnostics for Proactive Maintenance
The Honeywell FC-SDI-1624 includes comprehensive diagnostic features: channel-level short-circuit detection, open-circuit alerts, and power supply monitoring. Faults are logged in the Experion system with timestamps and error codes, while front-panel LED indicators (green for active, red for fault) provide on-site technicians with instant visual status. For example, if a sensor wire is cut, the module triggers an alert within 1ms, allowing maintenance teams to locate and repair the issue before it impacts production.
Related Models
- Honeywell FC-SDI-0824 – 8-channel compact variant of Honeywell FC-SDI-1624, ideal for small-scale applications (e.g., packaging machinery, HVAC control panels).
- Honeywell FC-SDI-1624-EX – Explosion-proof version of Honeywell FC-SDI-1624, certified to ATEX Zone 2/CSA Class I Div 2 for hazardous areas (e.g., gas processing plants, oil wellheads).
- Honeywell FC-SDO-1624 – Digital output counterpart of Honeywell FC-SDI-1624 (16 channels, 24V DC), designed to control actuators (e.g., relay coils, indicator lights) in tandem with the input module.
- Honeywell FC-SDI-1624-H – High-temperature variant of Honeywell FC-SDI-1624, rated for -20°C to +70°C for extreme environments (e.g., steel mill furnaces, desert solar plants).
- Honeywell FC-PWR-24V-10A – Dedicated power supply module optimized for Honeywell FC-SDI-1624, delivering stable 24V DC to power wet-contact sensors and the module itself.
- Honeywell FC-COM-GW-FLEX – Gateway module that extends Honeywell FC-SDI-1624’s connectivity to non-Honeywell PLCs (e.g., Siemens S7-1500) via Modbus RTU.
- Honeywell FC-SDI-1624-L – Low-power variant of Honeywell FC-SDI-1624 (3W max consumption), designed for battery-powered remote applications (e.g., pipeline pressure monitoring stations).
- Honeywell FC-SDI-3224 – 32-channel upgraded version of Honeywell FC-SDI-1624, for large facilities (e.g., petrochemical complexes) requiring extensive digital monitoring.
Company Expertise & Application Areas
As a certified Honeywell partner and distributor of leading industrial control brands (Emerson, ABB, TRICONEX), we specialize in delivering Honeywell Experion PKS components for critical sectors:
- Process Industries: In petrochemical refineries and chemical plants, the Honeywell FC-SDI-1624 monitors valve positions, pump statuses, and emergency stops, ensuring compliance with safety standards (IEC 61511) and optimizing process efficiency.
- Power Generation: For thermal, nuclear, and renewable power plants, the module tracks turbine auxiliary systems (e.g., lubrication pump status, cooling fan operation) and relays data to the Experion system, enabling predictive maintenance.
- Oil & Gas: In upstream (wellheads) and midstream (pipelines) operations, the explosion-proof FC-SDI-1624-EX variant monitors pressure relief valve statuses and pipeline blockage sensors, complying with ATEX and CSA hazardous area standards.
We prioritize end-to-end support for Honeywell products: our pre-sales team provides Experion PKS system design consultations to ensure the Honeywell FC-SDI-1624 meets your monitoring needs, while our after-sales team offers on-site commissioning and troubleshooting. All units come with a one-year warranty (extendable to 3 years) and access to Honeywell’s global technical support network. If you require additional Honeywell modules or custom configuration, contact us immediately for tailored solutions.
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