Siemens SIMATIC S7-400H - Communication Via Point-To-Point CP on the ET 200 M

Communication
14.5 Communication via S7 connections
S7-400H
System Manual, 03/2012, A5E00267695-11
241
14.5.3 Communication via point-to-point CP on the ET 200M
Connection via ET 200M
Links from fault-tolerant systems to single-channel systems are often possible only by way of
point-to-point connections, as many systems offer no other connection options.
In order to make the data of a single-channel system available to CPUs of the fault-tolerant
system as well, the point-to-point CP (CP 341) must be installed in a distributed rack along
with two IM 153-2 modules.
Configuring connections
Redundant connections between the point-to-point CP and the fault-tolerant system are not
necessary.
&38D
&38D
,0D
,0D
&38
D
&3

([W
[,0
&3
3W3
(70
&38
&3
&3 3W3 &38&3 3W3
+V\VWHPD
+V\VWHPD
6LQJOHFKDQQHOWKLUGSDUW\V\VWHP
6LQJOHFKDQQHOWKLUGSDUW\V\VWHP
&DEOH
5HGXQGDQF\EORFN
GLDJUDP
Figure 14-11 Example of connecting a fault-tolerant system to a single-channel third-party system
using switched PROFIBUS DP