32
Configuring the PROFIBUS-DP network
Section 2-6
2-6
Configuring the PROFIBUS-DP network
Defining the Configuration
After making the physical connections of the network, the configuration then
has to be defined in the software, using the PROFIBUS Master’s configuration
tool. OMRON provides a Personal Computer based configuration program,
called CX-Profibus (only required for OMRON masters), as well as the
required DTM’s for this purpose. It must be used to:
• Install new GSD-file
• Define the master(s).
• Assign slaves to their respective master(s).
• Assign slaves to groups for broadcast/multicast messages.
• Enter bus parameters, e.g. baud rate, target rotation time etc.
• Enable / Disable watchdog.
• Adjust watchdog settings
Downloading the
Configuration
The system must be downloaded to the Master unit after configuring it at the
Personal Computer. This is made possible by either connecting the serial
COM port of the Personal Computer to the CS1/CJ1 PLC with a serial inter-
face cable, or use an Ethernet connection between the Personal Computer
and the CS1/CJ1 PLC via an Ethernet unit.
2-6-1
Configuring the Slave Devices
After adding each of the slave DTM’s to the network, configurations have to
be selected for each of them. Setting up a configuration involves
• Selecting the proper I/O modules, which define the I/O data to be
exchanged when operational.
• Setting up the device parameters, which will be sent to the device to
make or verify its settings.
• Selecting the group assignment, which defines the group of slave devices
each slave belongs to and to allow sending Global-Control commands to
this particular group.
All these settings will be downloaded to the Master unit, which will send the
data to the individual slave devices over the PROFIBUS network.
2-6-2
Defining the I/O configuration
Opening the DTM
Configuration User
Interface
In order to define the I/O configuration, the DTM Configuration User Interface
must be opened. The next example uses CX-Profibus to define, edit and
download an I/O configuration.
The figure below, shows the DTM User Interface for the PRT1-SCU11
PROFIBUS-DP slave device. The DTM Configuration User Interface displays
two lists.
• The Available Modules list, which contains the I/O modules the user can
select.
• The Configured Modules list, which contains all the I/O modules selected
by the user.
Adding/Inserting I/O
Modules
To select the I/O modules, perform one of the following procedures.
