Functional specifications, Functional overview, About the profibus protocol – ProSoft Technology MVI56-PDPS User Manual
Page 57: E 57), Functional, Overview
Reference MVI56-PDPS
♦ ControlLogix Platform
Profibus DP Slave Communication Module
ProSoft Technology, Inc.
Page 57 of 88
April 22, 2008
Type Specifications
Physical Connection
PROFIBUS Connector
Standard PROFIBUS DB-9F communication connector. Cable
connection matches PROFIBUS pin out specification.
5.1.5 Functional
Specifications
PROFIBUS Slave
Communication
parameters
o
Baud Rate: 9.6 kbps12 Mbps
Supported I/O length
o
Up to 122 words Input data
o
Up to 122 words Output data
o
Total not to exceed 200 words
Freeze
Mode
Sync
Mode
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
Status
Data
o
PROFIBUS Status Data for slave
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 MVI56-PDPS module works as a slave.