Siemens SIMATIC S7-400H - Fault-Tolerant Communication; Standard Communication; Systems with Standard and Fault-Tolerant Communications

Characteristic Values of Redundant Programmable Logic Controllers
A-9
Automation System S7-400H Fault-tolerant Systems
A5E00068197-07
A.2.3 Comparison of System Configurations With Standard and
Fault-Tolerant Communications
The following section gives you a comparison between standard and fault-tolerant
communication for a configuration consisting of a fault-tolerant system, a
fault-tolerant CPU in single operation and a single-channel OS.
By comparison, only the communication components CP and cable were taken into
account.
Systems with standard and fault-tolerant communications
Standard communication Baseline
S7-400H system
S7-400 with
fault-tolerant
CPU
Single-user OS
1
Fault-tolerant communication Factor
S7-400H system
Single-user OS
S7-400 with
fault-tolerant
CPU
83