Examples Of The Maximum Configuration - Siemens SIMATIC IM 151/CPU Manual

Addressing
Address Areas for User Data Transfer with the DP Master
The ET 200S provides the PROFIBUS-DP with a maximum of 64 bytes of input
data and 64 bytes of output data. This data can be addressed in the intermediate
memory of the IM 151/CPU in up to 32 address areas.
An address area contains a maximum of 32 bytes. A maximum of 64 bytes is
available for input and output data.
The address areas start at 128 by default. The data is entered without a gap as of
address 128.

Examples of the Maximum Configuration

Table 2-2
Input address areas
Bytes per address area
Output address areas
Bytes per address area
Total no. of address areas
Total no. of bytes for inputs
Total no. of bytes for outputs
Data consistency
You define data consistency as byte, word, or overall consistency per address
area. Consistency can amount to up to 32 bytes/16 words per address area.
DP Diagnostic Address in STEP 7
When the ET 200S is configured with STEP 7 , a diagnostic address is set. The
ET 200S receives information on the status of the DP master or on a bus
interruption by means of this diagnostic address
operation the default diagnostic address is 1534.
2-6
Example Example
1 2
16 2
4 32
16 2
4 32
32 4
64 64
64 64
(see Section 4.5)
ET 200S Interface Module IM 151/CPU
Example Example
3 4
16 0
4 0
16 32
2 2
32 32
64 0
32 64
. In DP slave
A5E00058783-01