The SST-PFB-SLC is a communication module that is manufactured by SST. 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 a chassis-mounted device that occupies a single slot of the SLC 500 rack. It is mainly used to implement distributed I/O or remote I/O architecture as this module is capable of communicating with up to 96 Profibus slaves wherein up to 244 Bytes of input data and 244 bytes of output data can be communicated by the module with each slave device. For the SLC interface, this module supports up to 32 Words of direct input and output data and up to 1000 Words of M0 and M1 mapped data. 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. 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. Supported Profibus transmission rates and cable distance are 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. The recommended Profibus cable for use with this module is the Belden 3079A while other compatible cables are either manufactured by Siemens or Bosch. Allen-Bradley’s blue hose cable with 78 ohms cable impedance is not compatible with this module. The SST-PFB-SLC’s environmental specifications include an operating temperature of 0-50 Degree Celsius, the storage temperature of -40 to 85 Degree Celsius, and a relative humidity level of 5-95%. This module has a backplane current consumption of 700 mA @ 5 VDC.

The SST-PFB-SLC Profibus Scanner Module is a Profibus network scanner module for the Allen-Bradley SLC 500 controllers. 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 Scanner Module can act as a remote I/O scanner that is capable of scanning up to 96 I/O slave devices connected to the bus. As standard, the SST-PFB-SLC Scanner Module supports up to 244 bytes of I/O data per slave device, but this capacity can be expanded to 1000 words of input data and 128 words of output data by using the SST Profibus configuration tools. The SST-PFB-SLC Scanner Module can be installed in any I/O slot in the SLC rack except Slot 0 which is usually reserved for the SLC processor. The users can also install multiple scanners on the same rack.

The SST-PFB-SLC Scanner Module supports all the standard Profibus Baud rates, which include 9600 Baud, 19.2 kBaud, 93.75 kBaud, 187.5 kBaud, 500 kBaud, 750 kBaud, 1.5 MBaud, 3 MBaud, 6 MBaud, and 12 MBaud. The users can easily configure any I/O device on the DP network by using the SST Profibus configuration tool. 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. The SST-PFB-SLC Scanner Module provides standard status updates such as the FDL, network, and DP master diagnostics updates as well as individual status updates for each slave device connected on the bus. The SST-PFB-SLC Scanner Module has a maximum backplane current draw of 700 milliamps at 5 Volts DC.

1. What is the recommended mounting of the SST-PFB-SLC?

The SST-PFB-SLC only supports mounting to an SLC 500 chassis.

2. How many slave devices does the SST-PFB-SLC supports communicating with?

The SST-PFB-SLC supports data exchange with up to 96 Profibus slaves.

3. What is the amount of data can be exchange with each slave device?

The SST-PFB-SLC supports 244 Bytes of input data and 244 Bytes of output data per slave device.