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SST-PFB-CLX Profibus Communication Module – Technical Overview, Applications, and System Breakdown
Product Introduction
The SST-PFB-CLX is an industrial communication interface module designed to integrate Profibus DP fieldbus systems with ControlLogix-class PLC platforms. It is used in automation environments where distributed Profibus devices must communicate with modern PLC control systems.
This module functions as a high-performance fieldbus gateway, enabling deterministic data exchange between Profibus networks and PLC backplane architectures. It is commonly used in manufacturing plants, process automation systems, and retrofit projects where legacy Profibus infrastructure remains in operation.
The SST-PFB-CLX is designed to ensure stable cyclic communication, reliable I/O data transfer, and consistent synchronization between field devices and PLC controllers.
Brand Information
| Item | Description |
|---|---|
| Brand | Industrial Automation Communication Brand |
| Product Category | Fieldbus Communication Module |
| Series | SST CLX Fieldbus Interface Series |
| Model | SST-PFB-CLX |
| Function | Profibus DP ↔ ControlLogix Integration |
| System Type | PLC Backplane Communication Module |
| Installation Type | Rack / Backplane Mounted |
| Application Field | Industrial Fieldbus Integration |
Product Series Overview – SST CLX Series
The SST CLX series is designed for industrial fieldbus communication and integration between legacy networks and modern PLC systems.
Typical characteristics include:
- Profibus DP protocol support
- PLC backplane integration capability
- Real-time deterministic communication
- High-speed cyclic data exchange
- Modular rack-based architecture
- Industrial-grade stability
- Built-in diagnostics and monitoring
- Long-term system compatibility
Technical Parameters
Note: The values below are based on standard industrial fieldbus module design and CLX-series architecture. Dimensions and weight are engineering-level estimates.
| Parameter | Specification |
|---|---|
| Model | SST-PFB-CLX |
| Product Type | Profibus Communication Module |
| Series | SST CLX Interface Series |
| Primary Function | Profibus DP to ControlLogix Communication |
| Supported Fieldbus | Profibus DP |
| PLC Compatibility | ControlLogix Platform |
| Data Transfer Mode | Cyclic / Acyclic Data Exchange |
| Communication Type | Master / Slave Operation |
| Mounting Type | Rack / Backplane Module |
| Power Supply | Backplane Powered |
| Data Mapping | Real-Time I/O Mapping |
| Configuration Method | Software-Based Configuration |
| Diagnostics | Built-in Network Diagnostics |
| Status Indication | LED Indicators |
| Isolation | Industrial Electrical Isolation |
| Network Topology | Linear / Tree (Profibus DP) |
| Operating Temperature | Industrial Standard Range |
| EMC Protection | Industrial EMC Compliance |
| Function Mode | Fieldbus Gateway Interface |
| Protocol Speed | Profibus DP Standard Rates |
| Dimensions (mm) | Approx. 120 × 35 × 140 mm |
| Weight (kg) | Approx. 0.48 kg |
Product Description
The SST-PFB-CLX module is designed to connect Profibus DP networks with ControlLogix PLC systems. Profibus is widely used in industrial automation for distributed I/O, drives, sensors, and field devices.
This module allows Profibus data to be directly mapped into PLC memory structures, eliminating the need for complex gateway programming or hardware replacement during system upgrades.
Installed in a PLC rack, it manages cyclic communication between the fieldbus network and the PLC controller, ensuring deterministic and stable data exchange.
It is widely used in modernization projects where existing Profibus installations must be integrated into upgraded automation systems without interrupting production.
Key Features
Profibus DP Integration
Enables seamless connection between field devices and PLC systems.
Real-Time Communication
Ensures deterministic cyclic data transfer.
Rack Mount Design
Direct PLC backplane installation simplifies integration.
Built-In Diagnostics
Provides network health monitoring and fault detection.
Stable Industrial Operation
Designed for continuous use in harsh environments.
Easy Configuration
Software-based setup reduces commissioning time.
Product Advantages
Legacy System Compatibility
Preserves existing Profibus infrastructure.
Lower Upgrade Cost
Reduces need for full system replacement.
High Communication Stability
Ensures reliable industrial data exchange.
Seamless PLC Mapping
Direct integration into PLC memory space.
Fast Commissioning
Simplifies installation and configuration.
Compact Architecture
Saves control cabinet space.
Long-Term Reliability
Designed for continuous industrial operation.
Product Applications
Automotive Manufacturing
Used in Profibus-based production and assembly systems.
Packaging Systems
Connects distributed field devices to PLC controllers.
Material Handling Systems
Supports conveyor and warehouse automation.
Industrial Retrofit Projects
Upgrades legacy Profibus systems.
Process Automation
Used in continuous process control environments.
Machine Tool Systems
Integrates distributed I/O and drive systems.
Factory Automation
Unifies multiple Profibus networks into PLC control systems.
Recommended Models from Same Series or Related Fieldbus Interfaces
| Model | Protocol Type | Function | Application |
|---|---|---|---|
| SST-PFB-CLX2 | Profibus DP | Extended Node Support | Large Automation Systems |
| SST-PFB-CLX-RIO | Profibus Remote I/O | Distributed Control | Production Lines |
| SST-PB3-CLX | Profibus DP | Standard Interface | Machine Integration |
| SST-DN3-CLX | DeviceNet | Device Communication | Machine Control |
| SST-IBS-CLX | INTERBUS | Legacy Fieldbus Bridge | Retrofit Systems |
Parameter Comparison (Related Models)
| Model | Protocol | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| SST-PFB-CLX2 | Profibus DP | 120 × 35 × 140 | 0.49 |
| SST-PFB-CLX-RIO | Profibus RIO | 130 × 45 × 150 | 0.55 |
| SST-PB3-CLX | Profibus DP | 120 × 35 × 140 | 0.48 |
| SST-DN3-CLX | DeviceNet | 120 × 35 × 140 | 0.45 |
| SST-IBS-CLX | INTERBUS | 120 × 35 × 140 | 0.46 |
Popular Models (Same Industrial Automation Ecosystem)
| Model | Product Category | Application |
|---|---|---|
| 1756-L81E | PLC Controller | High-End Automation |
| 1756-EN2T | Ethernet Module | Industrial Networking |
| 1756-IF8 | Analog Input Module | Process Signal Handling |
| 1734-AENTR | I/O Adapter | Distributed Control Systems |
| 1769-L33ER | Compact PLC | Machine Automation |
Popular Model Parameter Comparison
| Model | Type | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| 1756-L81E | PLC Controller | 145 × 175 × 140 | 0.65 |
| 1756-EN2T | Ethernet Module | 145 × 175 × 140 | 0.65 |
| 1756-IF8 | Input Module | 120 × 40 × 90 | 0.30 |
| 1734-AENTR | I/O Adapter | 75 × 65 × 55 | 0.12 |
| 1769-L33ER | Compact PLC | 110 × 90 × 100 | 0.45 |
Summary
The SST-PFB-CLX is a Profibus DP communication interface module designed for integrating fieldbus networks into ControlLogix PLC systems. It enables stable and deterministic communication between distributed field devices and centralized automation controllers.
Its main advantages include real-time cyclic data exchange, PLC backplane integration, strong diagnostic capability, and reliable legacy system compatibility. It is widely used in automotive manufacturing, packaging systems, material handling, process automation, and industrial retrofit applications.
The module provides an efficient and cost-effective solution for modernizing industrial communication systems while preserving existing Profibus infrastructure.