Product Overview
In the field of industrial automation, the “language barrier” between equipment from different manufacturers is one of the biggest obstacles to system integration. The SST-PB3-CLX-RLL is designed to solve this problem – it acts as a “translator” and “bridge” between Allen-Bradley CompactLogix controllers and PROFIBUS fieldbus networks.
Physically, this module is installed as a 1769 series local I/O module in the expansion slot to the right of the CompactLogix controller, communicating with the CPU at high speed via the backplane bus. At the same time, its DB9 or M12 interface connects to the PROFIBUS cable, enabling control of the entire PROFIBUS segment (master mode) or being controlled by it (slave mode). Thanks to the Hilscher netX network controller chip, it possesses powerful real-time communication capabilities and rich diagnostic functions, far exceeding simple serial-to-PROFIBUS gateways.
🔍 Model Explanation:
SST: Brand (Smart Solutions Technologies)
PB3: Third-generation PROFIBUS product series
CLX: Optimized for the CompactLogix platform
RLL: Indicates support for the Rockwell Logix platform (i.e., RSLogix 5000 / Studio 5000 programming environment)
Technical Specifications
Table
Main Features and Advantages
* Native Logix Integration: Appears as a standard I/O module in Studio 5000, with data directly mapped to controller tags, eliminating the need for additional communication protocol programming.
* Flexible Dual-Mode Application: Allows the CompactLogix to act as a PROFIBUS master controlling third-party devices, or as a slave to be read and written by masters such as Siemens S7, greatly enhancing system interoperability.
* Powerful Diagnostic Capabilities: Supports PROFIBUS network-level diagnostics (e.g., slave offline, parameter errors, CRC faults), and provides real-time alarms through the controller program or HMI. * Plug-and-Play Configuration: Provides an official GSD file (usually named sst_pb3_clx.gsd), allowing for one-click hardware configuration.
* Industrial-Grade Reliability: Wide operating temperature range (0°C to +60°C), resistant to electromagnetic interference, suitable for harsh factory environments.
Typical Application Scenarios
Production Line Equipment Integration: Connecting Siemens ET200S remote I/O or ABB ACS880 frequency converters to an AB-controlled packaging line.
Legacy System Modernization: Upgrading the controller to CompactLogix while retaining existing PROFIBUS instruments (such as E+H flow meters, Yokogawa valves).
Cross-Brand Collaboration: In an automotive welding workshop, AB-controlled robots collaborate with a Siemens PLC-controlled conveyor system via SST-PB3-CLX-RLL.
Data Acquisition Gateway: Acting as a slave, sharing key data (such as production volume, status) from the AB system to the upper-level MES or SCADA system (if it is a PROFIBUS master).
Installation and Configuration Steps
Hardware Installation: Insert the module into the 1769 expansion slot on the right side of the CompactLogix controller, supporting up to 8 modules (depending on the power budget).
GSD File Import: Download the corresponding GSD file from the SST website and add the new device in the “I/O Configuration” of Studio 5000.
PROFIBUS Wiring: Connect the DB9/M12 interface using shielded twisted-pair cable, ensuring that the termination resistors are enabled at both ends of the network (usually via DIP switches on the module).
Parameter Configuration: Set parameters such as station address, baud rate, and I/O mapping length in the software, ensuring consistency with the slave device.
Online Testing: Check the communication status through “Module Properties” in Studio 5000 to verify that data reading and writing are functioning correctly.
Lifecycle and Procurement Recommendations
As of 2026, the SST-PB3-CLX-RLL is still in “Active” status, with global sales and support provided by Phoenix Contact. Alternative: Phoenix Contact has released the updated FL PB BOS 5000 series, but the SST-PB3 series is still widely used due to its maturity and stability.
Spare Parts Recommendation: For critical production lines, it is recommended to keep one spare unit, as it serves as a communication hub across systems, and a failure will cause the entire PROFIBUS segment to fail.
Compatibility Note: Only compatible with CompactLogix, not compatible with ControlLogix (the latter requires the SST-PB3-CR series).
Shenzhen Changxin’s Commitment: All SST-PB3-CLX-RLL modules supplied are brand new genuine products from Phoenix Contact, with official channel certificates provided. Each module undergoes power-on communication testing, PROFIBUS master/slave function verification, and appearance quality inspection. It comes with a 12-month warranty and GSD configuration file support, helping you quickly integrate AB and PROFIBUS ecosystems.
Technical Summary (English):
The SST-PB3-CLX-RLL is a PROFIBUS DP communication module designed for Rockwell Automation CompactLogix controllers. It enables seamless integration of PROFIBUS devices (e.g., I/O stations, drives, valves) into an Allen-Bradley control architecture via the 1769 I/O bus. Featuring Hilscher netX technology, it supports both Master and Slave modes, real-time diagnostics, and easy configuration through GSD files in Studio 5000. Ideal for multi-vendor system integration, retrofit projects, and cross-platform data exchange in industrial automation.
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