Omron PRT1-COM Operation Manual page 34

Setting up a PROFIBUS-DP network
Configurator
C200HW-PRM21
GSD file
Example
Limits defined
by GSD file
List of available
I/O Units type
List of selected
I/O Units
Calculated total
sizes
Check configuration
The configurator provides the master with information about:
• The slaves that are connected to the master.
• The assignment of slaves to groups for broadcast / multicast messages.
• The mapping of the slaves into the memory of the master.
• The bus parameters (e.g. baud rate, target rotation time etc.).
For more details about the configurator for the C200HW-PRM21 Master Unit,
refer to OMRON Catalog No. W349-E1.
To configure a master Unit to communicate with the PRT1-COM together with
the MULTIPLE I/O Units, the PRT1-COM device database file OC_047D.GSD is
required. Based on the contents of this file, the configuration program for the
master Unit will allow the user to select the MULTIPLE I/O Units.
The example below shows a configuration screen of the PRT1-COM. Here the
PRT1-COM is configured as a slave with 5 MULTIPE I/O Units.
The terms input and output are to be interpreted as seen from the
PROFIBUS-DP master unit.
PRT1-COM Configuration example
Note The System status module is mandatory. It is required for the PRT1-COM, and
shall always be returned to the master, no matter how many I/O Units have been
connected. It must be selected as the first "I/O Unit".
The list of selected I/O Units should exactly match the attached MULTIPLE I/O
Units. The first I/O Unit (in the example specified in the second row: GT1-ID16-1)
should be placed next to the PRT1-COM. The consecutive selected I/O Units
should be physically placed in this order from left to right. The last I/O Unit
(example: GT1-CT01) should be placed at the right end. This I/O Unit requires
the End connector.
Upon startup of the PROFIBUS-DP communication, the master will send a
Chk_Cfg message so that PRT1-COM can verify that the master's expected I/O
configuration for the PRT1-COM is correct.
On power-up PRT1-COM determines an I/O table of the attached I/O Units. The
I/O table is compared with the I/O configuration by:
– Amount of I/O bytes per I/O Unit
Section 2-3
21