High-availability automation system with redundant design.
For applications with high fail-safety requirements. Processes with high restart costs, expensive downtimes, little supervision, and few maintenance options.
Redundant central functions.
Increases availability of I/O: switched I/O configuration.
Also possible to use I/Os with standard availability: single-sided configuration.
Hot standby: automatic reaction-free switching to the standby unit in the event of a fault.
Configuration with two separate or one divided central rack.
Connection of switched I/O via redundant PROFIBUS DP and/or PROFINET.
Catalog ST 70:
You can also find information about SIMATIC S7-400 in Catalog ST 70:
