Product Overview

The SST-PFB-SLC acts as the high-speed communication gateway between Allen-Bradley SLC 500 platforms and PROFIBUS DP networks. This module allows an SLC 5/03 or later processor to function as either a PROFIBUS Master or Slave, facilitating seamless data exchange with third-party drives, sensors, and actuators. We supply this module as 100% Brand New and Original in Factory Packing, providing the critical link for hybrid automation environments that require interoperability between Rockwell controllers and PROFIBUS-enabled equipment.

Technical Specifications

Engineering Advantages

• High-Speed Data Processing: The SST-PFB-SLC supports the full PROFIBUS spectrum up to 12 Megabaud. This ensures that your SLC 500 system maintains high-speed synchronization with modern variable frequency drives (VFDs) and remote I/O without creating communication bottlenecks.

• Massive Network Capacity: By supporting up to 1000 input words and 128 output words across 96 slaves, this module handles complex process data effectively. It turns a standard SLC system into a powerful hub for large-scale distributed architectures.

• Rugged Optical Isolation: The integrated optical isolation protects the SLC backplane from high-voltage transients and ground loops common in long-distance fieldbus runs. This hardware-level protection increases system uptime in electrically noisy environments.

• Simplified Integration: The module utilizes the M0 and M1 file transfer capabilities of the SLC processor. This allows engineers to map PROFIBUS data directly into the PLC memory map using the SST Configuration Tool, reducing the complexity of custom ladder logic instructions.

• Dual Mode Versatility: This card operates as either a DP Master to control a local network of devices or as a DP Slave to allow the SLC 500 to report status data to a larger DCS or Siemens-based control system.

FAQs

Which SLC 500 processors support the SST-PFB-SLC?

The module requires an SLC 5/03, 5/04, or 5/05 processor. It relies on the advanced memory file handling (M0/M1) found in these models. It does not support the fixed-style SLC 500 or the 5/01 and 5/02 modular processors.

Can I install multiple SST-PFB-SLC modules in a single chassis?

Yes, provided your SLC power supply (e.g., 1746-P1, P2, or P4) has sufficient 5V DC current capacity. Each SST-PFB-SLC module draws 700 mA. You must calculate the total backplane load to prevent power supply overloading.

How do I set the PROFIBUS station address?

You do not use physical DIP switches for the station address. Instead, you define the station address and all network parameters (including baud rate and GSD file configurations) within the SST Configuration Tool software and download them to the module's non-volatile memory.

Does this module support PROFIBUS PA?

The SST-PFB-SLC is designed for PROFIBUS DP (Decentralized Periphery). To connect to PROFIBUS PA (Process Automation) instruments, you must use a DP/PA segment coupler or link between this module and the PA field devices.