Download Communication for Windows

PROFIBUS–DP Connection to SIMATIC S5
Set configuration
The assignment of the I/O area is explicitly defined with the four different
settings. Table 4-2 provides details of the I/O area assignment.
Table 4-2
Assignment of the I/O area for Class B
Class
Inputs (Byte)
Outputs (Byte)
Class B tiny
32
22
Class B small
42
22
Class B middle
64
32
Class B big
122
64
In order to download large quantities of data, it is recommended to set a large
I/O area. This ensures the screen displays on the operating unit are updated
more quickly because the data is retrieved in one cycle.
4-8
Communication for Windows-based Systems User’s Manual
Release 01/99