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Allen Bradley 1747-FC Detailed Product Introduction and Technical Specifications
Product Overview
The Allen Bradley 1747-FC is a Ferrite Collar accessory designed for use in SLC 500 programmable logic controller systems. It is mainly used for electromagnetic interference (EMI) and radio frequency interference (RFI) suppression on communication cables, especially RS-232 cables connected to SLC 500 processors.
The ferrite collar is installed on signal cables to reduce noise interference and improve communication stability between PLC modules and external devices. It plays a supporting but important role in ensuring reliable data transmission in industrial automation environments.
This component is widely used in legacy industrial control systems where RS-232 communication is present, helping maintain signal integrity in electrically noisy environments such as factories, power plants, and heavy machinery systems.
Brand Information
| Item | Details |
|---|---|
| Brand | Allen Bradley |
| Product Model | 1747-FC |
| Product Type | Ferrite Collar (EMI Suppression Accessory) |
| Product Family | SLC 500 Series Accessories |
| Series | SLC 500 Series |
| Main Function | EMI / RFI Noise Suppression |
| Installation Location | RS-232 Cable Interface |
Product Series Introduction
SLC 500 Series
The SLC 500 series is a modular PLC automation platform designed for industrial control applications.
It includes processors, input/output modules, communication modules, and supporting accessories used to maintain stable automation system performance.
Within this ecosystem, accessories such as ferrite collars are used to improve communication reliability and reduce electromagnetic noise in industrial environments.
The 1747-FC belongs to the accessory category of the SLC 500 series and is specifically designed to improve RS-232 communication signal quality.
Detailed Technical Specifications of 1747-FC
Main Technical Parameters
| Parameter | Specification |
|---|---|
| Model | 1747-FC |
| Product Type | Ferrite Collar |
| Series | SLC 500 |
| Main Function | EMI / RFI Noise Suppression |
| Compatible Cable Type | RS-232 Communication Cable |
| Compatible Controllers | SLC 5/01, SLC 5/02, SLC 5/03 |
| Material Type | Ferrite Core + Plastic Housing |
| Installation Position | Cable Entry / Exit Point |
| Operating Principle | Magnetic Noise Filtering |
| Electrical Function | Passive Component (No Power Required) |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Environmental Resistance | Industrial Grade |
| EMC Compliance Support | Yes |
| Installation Method | Snap-On Cable Installation |
| Dimensions | 3.0 × 2.5 × 1.5 cm |
| Weight (kg) | 0.02 kg |
Product Features
1. Electromagnetic Noise Suppression
The main function of the 1747-FC is to reduce electromagnetic interference generated by nearby industrial equipment.
It filters high-frequency noise that can affect RS-232 communication stability between PLC modules and external devices.
2. Improved Signal Stability
By suppressing unwanted electrical noise, the ferrite collar helps maintain stable data transmission.
This reduces communication errors, data loss, and signal distortion in industrial environments.
3. Simple Installation Design
The ferrite collar uses a snap-on structure that can be easily installed directly onto communication cables.
No wiring modification or system shutdown is required for installation.
4. Passive Operation
The component does not require external power supply or configuration.
It operates purely through magnetic field absorption and suppression of high-frequency noise.
5. Industrial Compatibility
The product is designed for use in harsh industrial environments containing motors, drives, relays, and high-voltage equipment.
It provides reliable performance in electrically noisy conditions.
Product Applications
PLC Communication Systems
The 1747-FC is commonly used in SLC 500 PLC systems where RS-232 communication is required between processors and external devices.
It improves communication stability in legacy automation systems.
Industrial Manufacturing Plants
Factories with heavy machinery often generate strong electromagnetic interference.
The ferrite collar helps reduce signal distortion in control cables running across production lines.
Automation Control Cabinets
Inside electrical cabinets, multiple communication and power cables run closely together.
The 1747-FC helps prevent cross-interference between signal lines.
Process Control Systems
In chemical plants and processing facilities, stable communication is required for control accuracy.
The ferrite collar improves signal reliability in these environments.
Legacy System Maintenance
Many older SLC 500 systems still operate in industrial facilities.
The 1747-FC is often used during maintenance to improve or restore communication stability.
Product Advantages
| Advantage | Description |
|---|---|
| Noise Reduction | Suppresses EMI and RFI interference |
| Improved Communication Stability | Reduces signal errors in RS-232 lines |
| Simple Installation | Snap-on design, no rewiring needed |
| No Power Required | Fully passive operation |
| Industrial Durability | Suitable for harsh environments |
| Low Cost Maintenance Solution | Easy and economical upgrade option |
| Wide Compatibility | Works with SLC 500 communication cables |
| Long Service Life | No electronic wear components |
Recommended Models from the Same Series or Related Series
SLC 500 Accessories and Communication Modules
| Model | Product Type | Main Function | Application | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| 1747-DCM | Communication Module | PLC Data Exchange | Remote I/O Systems | 15.2 × 5.1 × 15.2 cm | 0.20 kg |
| 1747-KE | Communication Interface | DH-485 / DF1 Communication | PLC Networking | 22 × 12 × 6 cm | 1.10 kg |
| 1747-ASB | Remote I/O Adapter | Distributed I/O Communication | Factory Automation | 14.5 × 13.1 × 3.5 cm | 0.168 kg |
| 1747-SN | Scanner Module | Remote I/O Scanning | Large Systems | 24 × 13 × 7 cm | 1.80 kg |
| 1747-BSN | Backup Scanner | System Redundancy | Critical Control Systems | 13.9 × 9.1 × 14.4 cm | 1.10 kg |
Recommended Popular Models from the Same Brand
Industrial Automation Products
| Model | Product Category | Main Features | Application Area | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| 1756-EN2TR | Ethernet Module | Dual Ethernet/IP Ports | Industrial Networking | 14 × 11 × 8 cm | 0.45 kg |
| 1769-L33ER | PLC Controller | Built-in Ethernet Communication | Machine Automation | 18 × 12 × 9 cm | 0.92 kg |
| 1756-IB16 | Digital Input Module | 16 Digital Inputs | Factory Systems | 15 × 11 × 6 cm | 0.30 kg |
| 1769-IF8 | Analog Input Module | 8 Analog Channels | Process Control | 12 × 9 × 5 cm | 0.35 kg |
| 1783-US8T | Ethernet Switch | Managed Industrial Switch | Network Control | 16 × 12 × 5 cm | 0.80 kg |
Communication Role in SLC 500 Systems
The 1747-FC does not process data or perform control functions.
Instead, it improves the quality of communication signals between PLC modules and external devices.
It is typically installed on RS-232 cables connected to SLC 500 processors to reduce noise interference.
This ensures stable communication in environments where electromagnetic disturbance is high.
Installation and Maintenance Characteristics
The ferrite collar is installed by clamping it directly onto communication cables.
No electrical wiring changes are required, making it a simple maintenance accessory.
It requires no calibration or configuration after installation.
Periodic inspection ensures it remains properly attached to cables in high-vibration environments.
Industrial Reliability
The 1747-FC is widely used in industrial automation systems where communication stability is critical.
Its passive design ensures long-term reliability without degradation or electronic failure.
It remains a common accessory in legacy SLC 500 systems operating in harsh industrial environments.
Summary
The Allen Bradley 1747-FC is a simple but important EMI suppression accessory designed for SLC 500 systems.
It improves RS-232 communication stability by reducing electromagnetic and radio frequency interference.
Its passive design, easy installation, and industrial durability make it a practical solution for maintaining reliable communication in legacy automation systems.
For industrial environments using SLC 500 controllers, the 1747-FC helps ensure stable and clean signal transmission across communication cables.