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- FC-TSDI-1648
- Safety Active/Passive Digital Input FTA Module
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- 90 × 70 × 58 mm
- 0.3 kg
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Honeywell FC-TSDI-1648 Safety Active/Passive Digital Input FTA Module
Product Overview
The Honeywell FC-TSDI-1648 is a dual-function safety digital input module designed for integration into functional safety systems. Supporting both active (transistor) and passive (contact) inputs, it features supervised input monitoring, fault-tolerant architecture (FTA), and SIL-certified performance. Housed in a compact form factor, the module delivers reliable detection of safety-critical signals for emergency shutdown, interlock logic, and safety instrumented functions.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | FC-TSDI-1648 |
| Module Type | Safety Digital Input (Active/Passive) |
| Input Channels | 16 |
| Active Input Type | 24 V DC sourcing (PNP) |
| Passive Input Type | Dry contact |
| Input Current | ≤ 8 mA per channel |
| Input Response Time | ≤ 10 ms |
| Channel Supervision | Continuous open/short detection |
| Safety Integrity Level | SIL 3 |
| Fault Tolerant Architecture | Dual-channel voting logic |
| Dimensions (W×H×D) | 90 × 70 × 58 mm |
| Weight | 0.30 kg |
| Mounting | DIN-rail |
| Operating Temperature | –25 °C to +70 °C |
| Certifications | IEC 61508, CE, UL |
Applications
Emergency shutdown circuits in process plants, safety interlocks for compressors and pumps, fire and gas detection systems, safety door interlocks on machinery, and redundant control loops in petrochemical, pharmaceutical, and power generation facilities.
Advantages
High-density 16-channel input in a compact footprint, dual active/passive sensing covering a wide range of field devices, built-in fault supervision for open-circuit and short-circuit detection, FTA logic ensuring no single failure leads to loss of safety function, and SIL-3 certification for top-tier safety applications.
Brand
Honeywell is a recognized leader in industrial automation and safety solutions, providing reliable, high-integrity components for safety instrumented systems worldwide.
Related Models in the Same Series
| Model | Type | Channels | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| FC-TSDO-1648 | Safety Digital Output Module (FTA) | 16 | 90 × 70 × 58 | 0.30 |
| FC-TADI-1616 | Analog Input FTA Module | 16 | 90 × 70 × 58 | 0.32 |
| FC-TADO-1624 | Analog Output FTA Module | 16 | 90 × 70 × 58 | 0.32 |
| FC-TSDI-3224 | Dual-redundant 32-channel Digital Input FTA | 32 | 180 × 70 × 58 | 0.55 |
| FC-TSIO-1616 | Mixed Digital I/O FTA Module (8 DI/8 DO) | 16 | 90 × 70 × 58 | 0.34 |
Popular Honeywell Safety Modules
| Model | Type | Function | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| FC-TALS-1008 | SIL-3 Safety Relay Module | 8 outputs | 90 × 70 × 58 | 0.28 |
| FC-TSMC-1000 | Safety Monitoring and Control Module | CPU/controller | 120 × 70 × 58 | 0.45 |
| FC-TSDI-0808 | 8-Channel Safety Digital Input FTA Module | 8 inputs | 90 × 70 × 58 | 0.24 |
| FC-TSRO-0808 | 8-Channel Safety Relay Output | 8 relay outputs | 90 × 70 × 58 | 0.30 |
| FC-TASW-0001 | Safety Switch Module | Emergency stop | 90 × 70 × 58 | 0.20 |
Frequently Asked Questions (FAQ)
Q1: What is the main function of the FC-TSDI-1648?
A1: It provides 16 channels of safety-certified digital input for both active (PNP) and passive (dry contact) signals.
Q2: Can this module detect wiring faults?
A2: Yes, it continuously supervises each channel for open and short circuits.
Q3: What safety standard does it comply with?
A3: It is certified to IEC 61508 SIL 3 standards.
Q4: How fast does it respond to an input change?
A4: Typical input response time is under 10 ms.
Q5: Can it be hot-swapped during operation?
A5: No, for safety and system integrity the module should be replaced with power removed.
Q6: What temperature range is supported?
A6: The module operates reliably from –25 °C to +70 °C.
Q7: What mounting options are available?
A7: It mounts easily on standard 35 mm DIN rails.
Q8: How heavy is the module?
A8: It weighs approximately 0.30 kg.
Q9: Is it compatible with other Honeywell Experion/ControlEdge systems?
A9: Yes, designed for Experion PK and ControlEdge PK safety racks.
Q10: What kinds of field devices can be connected?
A10: It supports 24 V DC active sensors and dry contact devices such as E-stop buttons and limit switches.