Data Transfer With The Dp Master; Principles Of Data Transfer Between The Dp Master And The Et 200S - Siemens SIMATIC IM 151/CPU Manual

2.3

Data Transfer with the DP Master

User Data Transfer Via an Intermediate Memory
The user data is located in an intermediate memory in the IM 151/CPU. This
intermediate memory is always used when user data is transferred between the
IM 151/CPU and the DP master. The intermediate memory consists of a maximum
of 32 address areas.
DP master
PROFIBUS-DP
Data transfer between DP master and the ET 200S via an intermediate memory in the IM 151/CPU
Data transfer between the IM 151/CPU and I/O modules
Figure 2-5 Principles of Data Transfer Between the DP Master and the ET 200S with the IM 151/CPU
ET 200S Interface Module IM 151/CPU
A5E00058783-01
ET 200S as DP slave
I/O modules
IM 151/CPU
Intermediate memory
Addressing
2-5