Description
Technical Specifications
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Product Model: FC-SDI-1624
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Brand: Honeywell
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Warranty: One Year
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Input Voltage: 18–32 VDC nominal 24 VDC field input
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Operating Temperature: -20°C to +55°C
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Storage Temperature: -40°C to +85°C
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Response Time: ≤1ms fast digital signal detection response
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Protection Class: IP20 industrial DIN rail mount grade
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Accuracy Class: Industrial safety grade signal recognition accuracy
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Output Frequency: Fixed industrial logic frequency matching DCS safety loop operation
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Rated Current Range: 7mA typical per channel input current, max 110mA total module consumption
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Communication Interface: DCS backplane bus interface, dedicated safety system connection port
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Supported Protocols: Honeywell proprietary safety bus protocols, compatible with Experion PKS system
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Overload Capacity: Per-channel short-circuit protection and overcurrent self-locking protection
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Dimensions: 125 mm × 75 mm × 35 mm compact DIN rail mounting size
Product Overview
The FC-SDI-1624 is a high-reliability 16-channel safety digital input module developed by Honeywell, tailored for industrial safety instrumented systems and critical process control loops. This Honeywell safety module collects discrete on/off signals from field sensors, limit switches, and emergency stop devices, converting field safety status into standard digital data for upper DCS system processing. It solves core industrial pain points such as scattered safety signal collection, poor single-channel fault isolation, and low anti-interference ability of ordinary input modules. Designed with full channel isolation and conformal coating treatment, this automation component delivers stable signal acquisition in humid and electromagnetic interference-prone environments.
Application Scenarios
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Petrochemical Safety Instrumented System (SIS): This Honeywell FC-SDI-1624 module is widely deployed in petrochemical plant safety loops to collect signal data from emergency stop switches, flame detectors, and pressure interlock switches. Independent single-channel protection ensures that local signal faults do not affect the overall safety system operation, while fast millisecond-level response realizes timely interlock trigger and risk isolation, meeting strict safety monitoring requirements of flammable and explosive process environments.
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Thermal Power Plant Interlock Control: Applied in boiler protection, turbine auxiliary machine interlock, and flue gas treatment safety systems of thermal power plants, the digital input module stably acquires equipment status and protection trigger signals. Its wide temperature adaptability and anti-interference performance adapt to complex power plant electromagnetic environments, ensuring accurate upload of safety state data and reliable execution of unit protection logic, reducing unplanned shutdown risks caused by signal abnormalities.
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