Configuration and Start-Up
ILX69-PBM ♦ CompactLogix™ or MicroLogix™ Platform
User Manual
PROFIBUS Master Communication Module
Page 48 of 113
ProSoft Technology, Inc.
5.4
Adjusting Input/Output Data Lengths in the Project
If you are using less than 408 bytes of input or 480 bytes of output data, the AOI can be
adjusted to fit the needs of your PROFIBUS network. This section shows you how to
determine the size and parameters to adjust.
5.4.1 Determining the Number of PROFIBUS Inputs/Outputs Used
The ProSoft fdt Configuration Manager shows the total number of inputs and outputs
assigned to all slaves on the PROFIBUS network. This information is used to determine
the adjustment needed in Studio 5000.
1
In the ProSoft fdt Configuration Manager, double-click on the
ILX69_PBM
icon in the
Network
view.
2
In the
Configuration ILX69_PBM
dialog, select the
A
DDRESS
T
ABLE
option to display
the individual inputs and outputs assigned to each slave. The example below shows
8 bytes of input and 8 bytes of output assigned to slave 2. This is the only slave on
the PROFIBUS network.
Notice as the inputs/outputs are added, they accumulate numerically
3
Using this information, the necessary adjustments in Studio 5000 can be made.
