ProSoft Technology 5205-DFNT-PDPS - Manual (Page 15)

Functional Overview PDPS ♦ ProLinx Gateway
PROFIBUS DP Slave
ProSoft Technology, Inc. Page 15 of 61
December 31, 2008
2 Functional Overview
In This Chapter
™ About the PROFIBUS Protocol.............................................................. 15
™ Port Physical and Protocol Specifications ............................................. 16
™ Module Internal Database ..................................................................... 17
™ Mailbox Commands............................................................................... 18
™ Mailbox Structure .................................................................................. 19
The PROFIBUS slave protocol driver may exist in a single port implementation.
The driver can be configured as a slave interface with other PROFIBUS devices.
The PROFIBUS slave port can be used to continuously interface with other
PROFIBUS devices over a serial communication interface (RS-485).
2.1 About the PROFIBUS Protocol
PROFIBUS (Process Field Bus) is a widely-used, open-standards protocol
created by a consortium of European factory automation suppliers in 1989.
PROFIBUS is a master/slave protocol. The master establishes a connection to
the remote slave. When the connection is established, the master sends the
PROFIBUS commands to the slave. The PDPS module works as a slave only.
The module uses an internal database to pass data and commands between the
processor and the client and server devices on the PROFIBUS network.
PROFIBUS supports a variety of network types. The network type supported by
the PDPS module is PROFIBUS DP (Device Bus), which is designed for remote
I/O systems, motor control centers, and variable speed drives.