Category: SST

Quickly Connect Rockwell SLC 500 Systems to PROFIBUS Networks and Maximise Network Flexibility with SST™ Communication Modules

The SST™ Communication Module connects Rockwell SLC 500 PLCs as a master or slave to scan or emulate PROFIBUS DP I/O.

With a user-defined data space of 2064 bytes of input and 2064 bytes of output, the SST™ Profibus Module provides the ability to connect SLC CPUs to large PROFIBUS networks.

A 9-pin serial port on the scanner can be used for field firmware upgrades and I/O configuration uploads.

SLC processor logic scanning and PROFIBUS I/O scanning are independent of each other. the SLC processor reads the scanner’s input data during input scanning and writes the output data during output scanning.

The SLC processor reads input data from the www.cniacs.com scanner during input scanning and writes output data during output scanning. The scanner reads input data from the slaves and writes output data to the slaves independent of the operation of the SLC.

Slave status, diagnostic status information for all slaves, network diagnostic counters and DP master diagnostic counters are maintained by the scanner.

A G-file is required in the SLC.

Features and Benefits

100% backward compatible with previous generation (SST-PFB-SLC)

Manages DP-V1 services, including SLC ladder logic sampling

M0 and M1 data areas doubled up to 1000 words

PROFIBUS DP master configuration software

Supports all PROFIBUS baud rates

Simultaneous operation of PROFIBUS DP masters and slaves

For storing DP

Master I/O configuration

Quick and easy installation on the SLC backplane, PROFIBUS I/O data is automatically mapped to the I/O files of the SLC processor and to the MO and MI files residing on the PB3-SLC.

Supports export of configuration files from SST DP Configuration Software and Siemens COM PROFIBUS

Multiple SST-PB3-SLC modules can be used in one SLC rack

Card Overview

The 5136-PFB-VME card can be used as a

– as DP slave

– as DP master

– Send and receive FDL (Layer 2) messages

The card supports simultaneous operation in all these modes.

The card supports the standard ProfiBus baud rates of 9.6K, 19.2K, 93.75K, 187.5K, 500K, and 187.5K,

187.5K, 500K, 750K, 1.5M, 3M, 6M and 12M baud rates.

The card has an onboard Intel i960 processor and 512 Kbytes of local RAM,

The card has an on-board Intel i960 processor and 512 Kbytes of local RAM, which handles the communication protocols and data formats into shared RAM.

The 5136-PFB-VME includes

a VME bus interface with functions as described in the “Specifications” section of this manual

Five registers in the VME short address space for controlling the card. The card also has a 256 kilobyte RAM that

It is shared with the host in either a single 256-kilobyte block (linear addressing mode) or one of sixteen 16-kilobyte pages (paged mode).

In paged mode, the host decides which page of the shared RAM to map into host memory by writing to a register on the card.

This block of memory contains all the tables and buffers used to pass information between the interface card and the application software running on the host.

Passing information between applications running on the host. This method ensures a quick and easy connection between the card software.

In addition, the interface card has 512 Kbytes of segmented flash memory for storing program and configuration data. Program and configuration data.

ProfiBus configuration information can also be stored in the flash memory.

Access rights

The 5136-PFB-VME provides 8-bit access to objects in the short address space and 8-bit and 16-bit access to objects in the standard address space.

The VME master selects whether a particular bus cycle accesses the short address space, the standard address space, or the long address space (extended address space) by using the address modifier code,

Extended Address Space, Standard Address Space, Extended Address Space, or Long Address Space (Extended Address Space and Long Address Space are not used by the 5136-PFB-VME) for a particular bus cycle, as well as the type of access.