Siemens SIMATIC S7-400H - Redundant Cpus with Redundant I;O; Single-Channel Switch I;O; Single-Channel, One-Way I;O

Characteristic Values of Redundant Programmable Logic Controllers
A-7
Automation System S7-400H Fault-tolerant Systems
A5E00068197-07
Redundant CPUs with redundant I/O
Single–channel, one–way I/O MTBF factor
PS 407, 10 A CPU 417-4H CPU 417-4H PS 407, 10 A
IM 153-1
SM 321
SM 322
DP
DP
IM 153-1
SM 321
SM 322
ET 200M ET 200M
2
fiber-optic cables
65
Single–channel switch I/O MTBF factor
PS 407, 10 A CPU 417-4H CPU 417-4H PS 407, 10 A
IM 153-2
SM 321
SM 322
DP
DP
IM 153-2
SM 321
SM 322
Active
backplane bus
2 fiber-optic cables
IM 153-2
IM 153-2
70