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Product Overview
The Honeywell FC-SDI-1648 Safety Digital Input Module is an advanced I/O module engineered for use in Honeywell’s Safety Manager and Fail-Safe Controller systems. It provides high-integrity digital input capabilities designed to meet stringent safety and reliability requirements in industrial automation and process safety environments.
Key Features
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16-channel isolated digital input module for safety-critical systems
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Designed for Honeywell Safety Manager and Fail-Safe Control platforms
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High reliability and fault-tolerant architecture
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Real-time monitoring and diagnostic capabilities
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Input channel isolation for system integrity
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Suitable for SIL2/SIL3 safety applications (IEC 61508 compliant)
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Compact design for easy system integration
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Operates reliably in harsh industrial environments
Technical Specifications
| Item | Specification |
|---|---|
| Manufacturer | Honeywell |
| Part Number | FC-SDI-1648 |
| Product Type | Safety Digital Input Module |
| Number of Channels | 16 isolated digital inputs |
| Input Type | Dry contact / open-collector compatible |
| Input Voltage Range | 18–32 V DC |
| Input Current | 3–8 mA typical per channel |
| Isolation Voltage | 1500 V DC between channels and system |
| Safety Certification | SIL2 / SIL3 (IEC 61508 compliant) |
| Diagnostics | Open circuit, short circuit, and line fault detection |
| Communication Interface | Safety Manager / Fail-Safe Control bus |
| Power Supply | 24 V DC nominal |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | –20 °C to +70 °C |
| Humidity | 10–95% RH, non-condensing |
| Mounting Type | DIN rail or rack-mounted |
| Dimensions | 120 × 25 × 100 mm |
| Weight | 0.25 kg |
| Compliance | CE, RoHS, IEC 61508, EN 50156 |
| Applications | Safety instrumented systems, emergency shutdowns, process safety monitoring |
Industry Applications
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Safety Instrumented Systems (SIS)
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Emergency Shutdown (ESD) systems
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Fire and gas detection networks
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Process automation and safety control
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Oil and gas, chemical, and petrochemical plants
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Power generation and energy management facilities
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Refining and hazardous area monitoring
Frequently Asked Questions (FAQ)
Q1: What is the primary function of the FC-SDI-1648 module?
It provides digital input monitoring for safety-critical signals in process control systems.
Q2: How many input channels does it support?
It supports 16 isolated digital input channels.
Q3: Is the FC-SDI-1648 SIL-certified?
Yes, it is SIL2/SIL3 compliant according to IEC 61508 standards.
Q4: What is the operating voltage range?
The module operates between 18 V DC and 32 V DC.
Q5: Does it support diagnostic functions?
Yes, it includes open circuit, short circuit, and fault detection.
Q6: Is it compatible with Honeywell Safety Manager systems?
Yes, it is fully compatible with Honeywell Safety Manager and Fail-Safe Controller systems.
Q7: What environments is it suitable for?
It’s ideal for industrial, hazardous, and process safety environments.
Q8: How is the module mounted?
It can be DIN rail or rack-mounted, depending on system configuration.
Related Honeywell Modules
| Model | Description |
|---|---|
| FC-SDI-1648 | Safety Digital Input Module |
| FC-SDO-0824 | Safety Digital Output Module |
| FC-AI-1624 | Analog Input Module |
| FC-AO-0814 | Analog Output Module |
| FC-PSU-UNI2450 | Universal Power Supply |
| FC-IO-0001 | I/O Expansion Module |
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