SST‑PB3‑CLX PROFIBUS DP Communication Module

The SST‑PB3‑CLX is a PROFIBUS‑DP slave/master communication interface module designed for Allen‑Bradley ControlLogix PLC racks. It establishes high‑speed PROFIBUS‑DP bus connection, enabling seamless data exchange between ControlLogix controller and PROFIBUS‑DP field devices such as drives, remote I/O and field instruments.

This plug‑in rack module supports both master and slave operating modes, equipped with hardware isolation for bus signal protection. It utilizes backplane bus to interact with Logix controller tags, and provides LED status indicators for bus diagnosis, suitable for long‑term reliable operation in manufacturing and process‑industry automation cabinets.

Main Specifications

• Brand: SST (Molex); Model: SST‑PB3‑CLX; Type: PROFIBUS‑DP Communication Module for ControlLogix
• Applicable System: Allen‑Bradley ControlLogix PLC platform
• Core Tasks: PROFIBUS‑DP master/slave communication, bus data mapping, signal isolation, bus fault diagnosis
• Signal Interface: PROFIBUS‑DP DB9 port, ControlLogix rack backplane bus interface
• Installation: Standard ControlLogix chassis plug‑in module
• Baud Rate: Up to 12 Mbps PROFIBUS‑DP; tag‑based data mapping with Logix controller
• Isolation: Galvanic isolation between PROFIBUS bus and PLC backplane
• Operating Environment: 0℃ ~ +60℃, 5%‑95% RH non‑condensing, industrial anti‑vibration grade
• Diagnostic: On‑board LED indicators for module, backplane and PROFIBUS bus status and fault alarm
• Certifications: CE, complies with PROFIBUS and industrial control EMC standards

Core Functions

• Operate as PROFIBUS‑DP master to collect input data and send output commands to PROFIBUS‑DP remote I/O, drives and field instruments.
• Support PROFIBUS‑DP slave mode to enable ControlLogix PLC to participate in external PROFIBUS‑DP control network.
• Map PROFIBUS process data directly to ControlLogix controller tags for convenient programming and data processing.
• Built‑in galvanic isolation protects PLC backplane from surge and interference coming from PROFIBUS field bus side.
• Real‑time PROFIBUS bus diagnosis, detect short‑circuit, bus break and slave station failure and give visual LED warning.
• Industrial‑grade hardware design adapts to long‑term continuous operation in factory and process‑industry automation sites.

Application Scenarios

• Spare‑part replacement for ControlLogix automation cabinets in chemical, power‑plant and heavy‑manufacturing facilities.
• PROFIBUS‑DP bus gateway component for ControlLogix systems connecting large numbers of PROFIBUS field devices.
• Maintenance backup inventory for renovation and after‑sales maintenance projects of legacy Rockwell‑based automation equipment.
• Matching communication module cooperating with ControlLogix CPU, digital / analog I/O modules and system HMI panel.
• Retrofit replacement for old communication modules with bus communication interruption and hardware damage faults.

• Global aftermarket spare supply for automation maintenance teams maintaining Rockwell‑based industrial control equipment worldwide.