Siemens SIMATIC S7-400H - Which Faults Can be Overcome Using Redundant I;O?

Using I/O on the S7-400H
7-16
Automation System S7-400H Fault-tolerant Systems
A5E00068197-07
Table 7-1 Signal modules for redundancy, continued
Modules RemarkOrder Number
Distributed: Redundant dual-channel DO
DO 10 x 24 V DC / 2 A 6ES7 326-2BF00-0AB0 F module in standard
operating mode
DO 32 x 24 V DC / 0.5 A 6ES7 322-1BL00-0AA0
DO 8 x 24 V DC / 2 A 6ES7 322-1BF01-0AA0
DO 8 x 24 V DC / 0.5 A 6ES7 322-8BF00-0AB0
DO 8 x 230 V AC / 2 A 6ES7 322-1FF01-0AA0
DO 16 x 24 V DC / 0.5 A 6ES7 322-8BH00-0AB0
DO 16 x 24 V / 10 nA (Ex) 6ES7 322-5SD00-0AB0
Distributed: Redundant dual-channel AO
AO 4 x 12 bits 6ES7 332-5HD01-0AB0
AO 8 x 12 Bit 6ES7 332-5HF00-0AB0
AO 4 x 15 Bit 6ES7 332-5RD00-0AB0
AO 8 x 12bit 6ES7 332-5HF00-0AB0
Notice
You need to install the F Configuration Pack V5.3 for F-modules. The F
Configuration Pack can be downloaded free of charge from the Internet.
You can find it at Customer Support under
http://www.siemens.com/automation/service&support.
Which faults can be overcome using redundant I/O?
There are 3 quality levels for the reliable operation of a redundant configuration of
signal modules:
• Highest quality with fail-safe signal modules (but without F functionality)
• Medium quality with signal modules capable of diagnostics
• Simple quality with signal modules without diagnostics