Siemens SIMATIC CPU 410 User Manual

Supplementary information
18.10 Communication via S7 connections
CPU 410 Process Automation/CPU 410 SMART
330 System Manual, 05/2017, A5E31622160-AC
Configuring connections
Redundant connections between the point-to-point CP and the fault-tolerant system are not
necessary.
Figure 18-13 Example of connecting a fault-tolerant system to a single-channel third-party system via
switched PROFIBUS DP
Figure 18-14 Example of connecting a fault-tolerant system to a single-channel third-party system via
PROFINET IO with system redundancy
Response to failure
Double errors in the fault-tolerant system (i.e., CPUa1 and IM 153) and a single fault in the
third-party system lead to a total failure of communication between the systems involved.
This can be seen in the previous figure.

Siemens SIMATIC CPU 410 Specifications

General

Brand	Siemens
Model	SIMATIC CPU 410
Category	Control Unit
Language	English