Fault-tolerant

S7-400/FH

  • 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

  • Redundantly designed central functions

  • Increases availability of I/O: switched I/O configuration

  • Also possible to use I/Os with standard availability: single-sided configuration

  • Hot stand-by: Automatic reaction-free switching to the standby unit in the event of a fault

  • Configuration with 2 separate or one divided central rack

  • Connection of switched I/O via redundant PROFIBUS DP or system-redundant PROFINET I/O.