MOLEX SST-PB3-REM Profibus Remote Communication Module | Replacement, Equivalent & Selection Guide
The MOLEX SST-PB3-REM is a Profibus DP remote communication module designed for seamless integration into distributed I/O and PLC control systems. This page provides full technical specifications, compatible replacement options, application guidance, and a structured selection guide to help engineers and procurement teams make confident sourcing decisions.
Technical Specifications
- Part Number: SST-PB3-REM
- Manufacturer: MOLEX (formerly SST / Woodhead)
- Protocol: Profibus DP (EN 50170 / IEC 61158)
- Function: Remote communication module for Profibus DP networks
- Interface: Profibus DP slave interface
- Baud Rate: Up to 12 Mbps (auto-detect)
- Power Supply: 24 VDC (via backplane or external)
- Operating Temperature: 0°C to +55°C
- Storage Temperature: -25°C to +85°C
- Weight: 268 g
- Certifications: CE, UL (verify with current datasheet)
- Housing: DIN-rail mountable module
Compatible Replacement & Equivalent Models
If the SST-PB3-REM is discontinued, on extended lead time, or outside budget, the following models are commonly evaluated as functional equivalents. Always verify electrical and protocol compatibility before substitution.
- SST-PB3-CLX — MOLEX SST Profibus DP module for ControlLogix platforms
- SST-PB3-SLC — MOLEX SST Profibus DP module for SLC 500 platforms
- Hilscher CIFX 50-PB — Universal Profibus DP master/slave PC card (requires driver integration)
- Anybus X-gateway AB7832 — Profibus DP to EtherNet/IP gateway (for protocol bridging scenarios)
- Siemens CP 342-5 — Profibus DP communications processor for S7-300 (OEM alternative)
- Phoenix Contact FL COMSERVER UNI — Serial-to-Profibus gateway for legacy device integration
Note: Replacement suitability depends on your PLC platform, network topology, and firmware version. Contact Konmask for application-specific guidance.
Why Choose the Original Model
- Proven field reliability — SST-PB3-REM has a long track record in industrial automation environments
- Native platform integration — Designed for plug-and-play compatibility with specific Allen-Bradley / Rockwell Automation PLC families
- Minimal configuration overhead — Auto baud-rate detection reduces commissioning time
- Stable firmware ecosystem — Supported by MOLEX SST configuration tools and GSD files
- Regulatory compliance — Meets CE and UL requirements for industrial deployments
Typical Applications
- Distributed I/O expansion in Profibus DP networks
- Remote PLC communication in manufacturing cells and assembly lines
- Process automation in chemical, oil & gas, and water treatment plants
- Machine tool control and CNC integration
- Building automation and HVAC control systems
- Conveyor and material handling systems
System Compatibility
The SST-PB3-REM is compatible with the following platforms (verify with MOLEX SST documentation for your specific firmware revision):
- Allen-Bradley / Rockwell Automation PLC-5, SLC 500, ControlLogix, CompactLogix
- Profibus DP master controllers from Siemens, Schneider Electric, and ABB
- SCADA and DCS systems with Profibus DP slave support
- Third-party Profibus DP masters compliant with EN 50170
Selection Guide
Use the following criteria to determine whether the SST-PB3-REM is the right module for your application:
- Step 1 — Identify your PLC platform: Confirm your host PLC model and backplane slot availability
- Step 2 — Confirm protocol: Verify your field devices use Profibus DP (not Profibus PA or MPI)
- Step 3 — Check baud rate requirements: SST-PB3-REM supports up to 12 Mbps; confirm network segment requirements
- Step 4 — Count I/O nodes: Determine the number of Profibus DP slaves to ensure the module’s node capacity is sufficient
- Step 5 — Review environmental conditions: Confirm operating temperature, humidity, and enclosure rating match your installation site
- Step 6 — Evaluate alternatives: If the original is unavailable, use the replacement table above and consult Konmask for cross-reference validation
Quality Assurance & Sourcing
- All units sourced through Konmask.com are inspected for authenticity and physical condition prior to shipment
- New, refurbished, and tested-used grades available — specify your requirement at time of inquiry
- Traceability documentation (manufacturer COC, test reports) available upon request
- Anti-counterfeit verification performed on all MOLEX SST modules
- 30-day return policy on stocked items (subject to terms)
How to Order
- Add the SST-PB3-REM to your cart and proceed to checkout, or
- Email your purchase order or RFQ to [email protected]
- Include: quantity required, required delivery date, and preferred unit grade (new / refurbished / tested-used)
- For bulk orders (>5 units) or urgent requirements, call +0086 19859288691 for priority handling
- Lead time: in-stock items ship within 1–3 business days; sourced items typically 5–15 business days
Replacement & Compatibility FAQ
Q: Is the SST-PB3-REM still in production?
A: MOLEX SST product lines have undergone transitions following acquisitions. Contact Konmask to confirm current availability and recommended alternatives.
Q: Can I use the SST-PB3-REM with a Siemens S7-300?
A: The SST-PB3-REM is primarily designed for Allen-Bradley platforms. For Siemens S7-300, consider the Siemens CP 342-5 or a compatible Profibus DP gateway.
Q: What GSD file do I need for the SST-PB3-REM?
A: GSD files are available from MOLEX SST’s official support portal. Konmask can assist in locating the correct file for your firmware version.
Q: Do you offer warranty on used units?
A: Yes. Tested-used units carry a 90-day functional warranty. New units carry the manufacturer’s standard warranty where applicable.
Q: Can Konmask help with cross-referencing to a different brand?
A: Yes. Send your application details to [email protected] and our technical team will provide a validated cross-reference recommendation.
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Contact: [email protected] | +0086 19859288691
