3.6 Im 308-C As Dp Slave; Method Of Operation, Im 308-C As Dp Slave - Siemens SIMATIC S5 Manual

3.6 IM 308-C as DP slave

In this section Section 3.6 summarizes everything you need to know about operating the
IM 308-C as DP slave.
The function of the mode selector switch and the meanings of the indicators
are discussed above, in Section 3.1.
IM 308-C as DP You use the IM 308-C as a DP slave for fast data interchange between two
slave programmable controllers. The module functions as a high-speed I/O link
between the two programmable controllers.
Method of Fig. 3-3 illustrates the method of operation of the IM 308-C when it is used
operation
as a DP slave.
Figure 3-3
Preconditions
If you want to use the IM 308-C as a DP slave, you require COM ET 200
Windows version 2.0 or later and an IM 308-C release 3 or higher. The
IM 308-C running as DP slave requires a memory card containing parameters
set with COM ET 200 Windows.
ET 200 Distributed I/O System
EWA 4NEB 780 6000-02a
IM 308-C master interface and memory card
The DP master sends outputs to the IM 308-C as DP slave. The DP slave
treats these outputs as inputs (DP slave inputs).
The IM 308-C as DP slave sends the CPU outputs to the DP master (DP
slave outputs). The DP master treats the DP slave outputs as inputs.
You define the addresses and the scope of the DP slave inputs and outputs
with COM ET 200 Windows (see Section 8.2.6).
CPU DP master
Inputs
Outputs

Method of operation, IM 308-C as DP slave

IM 308-C/
DP slave CPU
Inputs
Outputs
3-13
3