Overview
SST-PFB-SLC is a Profibus DP remote I/O scanner module designed for Allen-Bradley SLC 500 controllers. This module is specifically a Profibus Scanner Module that is compatible for use with Allen-Bradley SLC controllers particularly SLC 5/03 controllers or higher. This module is able to scan I/O devices in the Profibus network, utilized for implementing Remote I/O or distributed I/O architecture. The SST-PFB-SLC is a single-slot, chassis-mounted card that integrates PROFIBUS DP communication directly into your SLC 500 rack.
Key Features
- Supports 244 Bytes of input data and 244 bytes of output data per slave connection, supporting up to 96 slave connections.
- Supports 9600, 19200, 93.75k, 187.5k, 500k, 750k, 1.5M, 3M, 6M, 12M Profibus transmission rates and provides module status and network information such as slave status for each slave, network diagnostic counters, DP master diagnostic counters, and FDL diagnostic counters.
- This module also comes with Two (2) 9-pin D-shell communication ports specifically, One (1) RS232serial configuration port and One (1) Profibus communication interface.
- The SST-PFB-SLC Scanner Module has an onboard flash memory for storing configuration files, thereby eliminating the need for reconfiguration on every SLC startup.
- This module is installed with LED status indicators such as COM that depicts the presence of error in the network and SYS LED for reporting DP master or DP Slave operation sequentially.
Technical Specifications
- Input/Output Data: Up to 32 Words of direct input and output data and up to 1000 Words of M0 and M1 mapped data.
- Slave Connections: Up to 96 slave connections.
- Profibus Baud Rates: 9.6k to 12M Baud (all standard rates supported)
- Power Consumption: 700 mA @ 5 VDC.
- Operating Temperature: 0-50 Degree Celsius.
- Storage Temperature: -40 to 85 Degree Celsius.
- Humidity: 5-95% relative humidity.
- Cable Distance (select rates): 9600 @ 1200 meters; 19200 @ 1200 meters; 93.75k @ 1200 meters; 187.5k @ 1000 meters; 500k @ 400 meters; 1.5M @ 200 meters; 3M, 6M, 12Mbaud @ 100 meters.
- Recommended Cable: Belden 3079A while other compatible cables are either manufactured by Siemens or Bosch.
- Installation: This module is a chassis-mounted device that occupies a single slot of the SLC 500 rack.
Typical Applications
This scanner module is designed to connect the series SLC 5/03 or later processors to Profibus DP master devices, DP slave devices, or FDL devices on the Profibus network. The SST-PFB-SLC enables integration of distributed Profibus field devices with legacy SLC 500 automation systems. Ideal for facilities modernizing I/O infrastructure, adding remote sensing nodes, or connecting third-party Profibus devices to established SLC 500 platforms.
Compatibility & Replacements
Compatible With
- Allen-Bradley SLC 5/03 controllers or higher
- SLC 500 modular chassis (any slot except Slot 0)
- PROFIBUS DP Master and DP Slave protocols simultaneously
- FDL (Fieldbus Data Link) devices on Profibus networks
Replaces / Drop-In Replacement For
- Molex 1120160022 (previously sold under Brad/SST label as SST-PB3-SLC)
- Earlier versions of the SST-PFB-SLC (Version 1.x)
Works With
- SST ProfiBus Configuration Tool, or Siemens COM PROFIBUS software
- Allen-Bradley RSLogix 500 (via specialty module programming)
- Standard Profibus configuration tools
- All standard Profibus DP master and slave devices


















