ProSoft Technology InRAX MVI46-PDPS, Manual

Page: 47 / 72

Reference MVI46-PDPS ♦ SLC Platform
Profibus DP Slave Communication Module
ProSoft Technology, Inc. Page 47 of 72
April 30, 2008
5.1.5 Functional Specifications
PROFIBUS Slave
ƒ Communication parameters
o
Baud Rate: 9.6 kbp to 12 Mbps
ƒ Supported I/O length
o
Up to 244 bytes Input data
o
Up to 244 bytes Output data
o
Total not to exceed 400 bytes
ƒ Freeze Mode
ƒ Sync Mode
ƒ Auto Baud Setting
o
Configurable Parameters
o
PROFIBUS Node Address: 0 to 125
o
Data byte swapping
o
Action on loss of PROFIBUS connection
o
Comm Fail Timeout Multiplier
o
Status Data location in Internal Database
ƒ Status Data
o
PROFIBUS Status Data for slave
ƒ Physical Connection
o
PROFIBUS Connector
o
Standard PROFIBUS DB-9F communication connector. Cable connection
matches PROFIBUS pin out specification
5.2 Functional Overview
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 PROFIBUS serial communication network.
5.2.1 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 MVI46-PDPS module works as a slave.
PROFIBUS supports a variety of network types. The network type supported by
the MVI46-PDPS module is PROFIBUS DP (Device Bus) version 0, which is
designed for remote I/O systems, motor control centers, and variable speed
drives.