Allen-Bradley SST-PFB-SLC SLC 500 Profibus DP Scanner Module

Product Description

The SST-PFB-SLC is a Profibus DP communication scanner designed for integration with the Allen-Bradley SLC 500 control platform. Manufactured by SST, this module enables high-speed data exchange between the PLC system and distributed field devices operating on a Profibus network.

It is intended for use with SLC 5/03 processors and later models, providing a robust interface for building distributed or remote I/O architectures. The module acts as a network master, continuously scanning up to 96 slave devices and managing cyclic I/O communication across the field network.

The SST-PFB-SLC supports a wide range of transmission speeds, making it adaptable to different Profibus network configurations and legacy installations. It also provides detailed diagnostic information for both system-level and device-level monitoring, improving troubleshooting efficiency in complex control systems.

Key Technical Specifications

Communication & Network

• Network Protocol: Profibus DP

• Supported Baud Rates: 9.6 kbps to 12 Mbps

• Maximum Slave Devices: up to 96 nodes

• I/O Capacity per Slave: 244 bytes input / 244 bytes output

• Total I/O Capacity: up to 1000 input words / 128 output words

• Configuration Tool: SST Profibus configuration software

Interfaces

• Communication Ports:

• 1 × Profibus DP port

• 1 × RS-232 configuration port

• Cable Compatibility: wide range of Profibus shielded and industrial cables supported

System Compatibility

• Controller Support: SLC 5/03 and later

• Installation Slot: any SLC 500 slot except slot 0

• Backplane Interface: SLC 500 chassis compatible

Electrical Characteristics

• Backplane Current Consumption: 700 mA @ 5 VDC

• Module Supply: 5 VDC via backplane

Diagnostics & Indicators

• System Status LED

• Network Status LED

• Slave-level diagnostic reporting

• DP master diagnostic counters

• FDL communication diagnostics

Mechanical Data

• Module Type: single-slot communication module

• Mounting: SLC 500 chassis mount

• Weight: 0.55 lbs

Functional Features

• Profibus DP master scanning capability

• Supports high-density distributed I/O architectures

• Real-time network diagnostics and fault reporting

• Flexible baud rate configuration for mixed network environments

Applications

• Distributed I/O systems in manufacturing lines

• Process automation requiring Profibus integration

• Machine control with remote field devices

• Retrofit integration of Profibus networks into SLC systems

FAQ

Q: How many devices can this module manage on a Profibus network?
A: It supports up to 96 slave devices per network segment.

Q: Does it support high-speed Profibus communication?
A: Yes, it supports transmission rates up to 12 Mbps.

Q: Can it be used with all SLC processors?
A: It is compatible with SLC 5/03 and newer processors.