1. SIMATIC S7 Software Redundancy

2. SW Redundancy Principle
Positioning
Application Fields
Configuration
Features
Order number and delivery form
REDUNDANCY Area
Steam Production
Boiler 1
Mixer
Boiler 2
Dryer

3. SW Redundancy Positioning
Low Cost / Low Performance Redundancy solution based on standard components
Universal solution for all CPU from CPU 315-2DP until CPU 417-4
Marketing parallel to S7-400H
Principle
Positioning
Application Fields
Configuration
Features
Order number and delivery form

4. SW Redundancy Application Fields
Application for processes that tolerate a Master-Slave switchover time of about a second
Examples:
Water treatment
Control of cooling systems
Control and monitoring of
temperature
levels
Traffic control
Measuring registration
Principle
Positioning
Application Fields
Configuration
Features
Order number and delivery form

5. SW Redundancy with S7-400 Configuration
Principle
Redundant Area
Non redundant
MPI/ Profibus/ Ethernet
Redundancy Connection
Master
controller
Back up
Area
ET 200M with
IM 153-2
Active Bus
Backup Bus
Positioning
Application Fields
Configuration
Features
Order number and delivery form

6. Profibus DP Redundancy with Standard IM 153-2
ET 200M
with active Bus modules L+
Redundant IM 153-2
Principle
Positioning
Application Fields
Configuration
Features
Order number and delivery form IM
Bus module (BM)
Active
Bus module
Available as individual components
IM: 6ES AA02-0XB0
BM: 6ES HD00-0XA0
or as Bundle (2 x IM + 1 BM)
6ES AR00-0XA0

7. SW Redundancy Function
Principle
Master
Reserve
Positioning
Reading of Inputs
Reading of Inputs
Application Fields
Configuration
Non redundant user program processing
Non redundant user program processing
Features
Order number and delivery form
Reception of status information from reserve controller
Reception of information from master controller
Redundant user program processing
Transmission of redundant data to reserve controller
Transmission of information to the master controller
Writing of non redundant and redundant outputs
Writing of non redundant outputs

8. SW Redundancy with S7-400 Redundant area Principle Positioning
MPI/ PROFIBUS/ Ethernet
Application Fields
Redundancy Connection
Configuration
Features
Master
controller
Back up
controller
Order number and delivery form
Redundant area

9. SW Redundanz with S7-300,-400 and OP7/17
Principle
Redundant area
Profibus/ Ethernet
Master
controller
Back up
Non redundant
area
OP7/17
PROFIBUS/MPI
Positioning
Application Fields
Configuration
Features
Order number and delivery form

10. SW Redundancy with S7-300,-400 and OP7/17
Principle
Positioning
Redundant area
Master
controller
Back up
Non
redundant
area
OP37
PROFIBUS/MPI
Application Fields
Configuration
Features
Order number and delivery form

11. SW Redundancy with S7-400 and WinCC
Redundanzbereich
PROFIBUS/MPI/Ethernet
Master
controller
Back up
Non
redundant
area
WinCC Redundancy script
Redundant area
Principle
Positioning
Application Fields
Configuration
Features
Order number and delivery form

12. SW Redundancy Connection to WinCC
WinCC Script for
Master-Backup switching (manual or automatic)
Diagnostic Information
AS1 or 2 is master
Status AS-AS communication
Status DP-slaves
Principle
Positioning
WinCC
Var 1
Var 2 .
Var n
Application Fields
Configuration
Features
Order number and delivery form V1 V2 V3 V4
AS 1
AS 2
Redundanzbereich

13. SW Redundancy with single PROFIBUS
Principle
Positioning
MPI/PROFIBUS/ Ethernet
Master
controller
Back up
Application Fields
Configuration
Features
Order number and delivery form

14. SW Redundancy with redundant Ringbus
Principle
MPI/PROFIBUS/ Ethernet
Master
controller
Back up
OLM
Positioning
Application Fields
Configuration
Features
Order number and delivery form

15. SW Redundanz with Multi Redundancy
Principle
Back up
controller
Redundant area
Non
redundant
area
Positioning
Application Fields
Configuration
Features
Order number and delivery form

16. SW Redundancy Features
Master slave switchover time
dependant on:
CPU-Type
number of I/O and number of DP-slaves
volume of data to be transfered
communication device
Example with 2 CPU DP, 4 DP-Slaves, 4 kBytes Data, communication throught Profibus
Data transfer time appr. 1 s
DP-Slave swithover appr. 20 ms
Fault detection time appr. 100ms
Sum appr. 1,1 s
Principle
Positioning
Application Fields
Configuration
Features
Order number and delivery form

17. SW Redundancy Features
Switchover procedure
Outputs are beeing frozen during the switchover
After the switchover, the transfered data are used
Switchover reasons
Master failure (Power off or CPU-STOP)
Failure of the Profibus-DP of the master controller
Manual switchover
Memory requirement is 10 kBytes
STEP7 V 4.02 is required
Principle
Positioning
Application Fields
Configuration
Features
Order number and delivery form

18. SW Redundancy Ordering Information
Order Number:
6ES AC00 -0YA0 single licence for one redundant System (two CPU)
6ES AC00 -0YA1 copy license for additional Systems
delivery form
CD-ROM with electronic documentation in 5 languages as help and PDF-file and 3 application examples
Principle
Positioning
Application Fields
Configuration
Features
Order number and delivery form

19. SIMATIC S7 Software-Redundancy