Redundant I/O; Mtbf Factor For Redundant I/O - Siemens SIMATIC S7-400H Manual

Characteristic Values of Redundant Programmable Logic Controllers

Redundant I/O

2 fiber-optic cables
ET 200M
Table A-1

MTBF factor for redundant I/O

Modules
Digital input module, distributed
DI 24xDC24V
DI 8xNAMUR [EEx ib]
DI16xDC24V, interrupt
Analog input module, distributed
AI 6x13Bit
AI8x12Bit
Digital output module, distributed
DO 10xDC24V/2A
DO8xDC24V/2A
DO32xDC24V/0.5A
A-8
ET 200M
MLFB
6ES7 326-1BK00-0AB0
6ES7 326-1RF00-0AB0
6ES7 321-7BH00-0AB0
6ES7 336-1HE00-0AB0
6ES7 331-7KF02-0AB0
6ES7 326-2BF00-0AB0
6ES7 322-1BF01-0AA0
6ES7 322-1BL00-0AA0
Automation System S7-400H Fault-tolerant Systems
MTBF factor
see table below
MTBF factor
500
500
20
500
25
500
3
3
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