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Configure the Adapter for Master/Slave Communication 3170-PDP ♦ FLEX Platform
FLEX I/O™ PROFIBUS Adapter
ProSoft Technology, Inc. Page 51 of 152
August 23, 2007
5 Configure the Adapter for Master/Slave
Communication
In This Chapter
¾ How Master/Slave Communication Takes Place.................... 51
¾ Entering User Parameter Data............................................... 52
¾ Read Configuration Response Data....................................... 60
¾ Configuration Example Using PROFIBUS Manager Software61
In this chapter, we describe:
ƒ how master/slave communication takes place
ƒ entering user parameter data
ƒ entering check configuration data
ƒ read configuration response data
ƒ a programming configuration example using Rockwell Automation
PROFIBUS manager software
A data exchange between the master and slave cannot be performed until check
configuration and send parameter data are issued. Each time you power-up the
network, the master sends check configuration and send parameter data to the
slave (FLEX I/O adapter).
5.1 How Master/Slave Communication Takes Place
Check configuration data
determines or checks the number of input and output
words used by each FLEX I/O module.
Send parameter data
contains device-specific parameters you define for each
FLEX I/O module.
You need a
software configuration tool
to set the values associated with these
parameters. If you are using the Rockwell Automation 1785-PFB/B coprocessor
as a master, you must use the Rockwell Automation PROFIBUS Manager
Software configuration tool. Since the FLEX I/O adapter is compatible with any
master, you can use any configuration tool available on the market.
The
device database (GSD) file
is included on the software diskette you
received with your shipment of the FLEX I/O adapter. The PSFT0882.GSD file is
used by your configuration tool to help you set up your system. Your
configuration tool automatically reads the PSFT0882.GSD file and extracts
defaults used in the data exchange.
The file is in ASCII format and you can view it with any text editor. A printed copy
of your PSFT0882.GSD file appears in the Reference chapter.