Siemens EF 837 Series Spezifikationen PDF herunterladen (Seite 40)

S800 I/O Configuration - Basic Rules and Examples Section 3 Configuration

40 3BSE056248

High Integrity I/O to redundant High Integrity Controllers

In total max 84 modules but limited by:

• TB840A Power supply capability.

• Required scan cycle time.

• Required CPU load.

The optical ModuleBus can be configured for long distances and in star configurations using

TB825 see Long distance distribution in star as Direct I/O to AC 800M on page 42.

NOTE! In a configuration with redundant CPUs, COM3 and the electrical ModuleBus

cannot be used.

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Siemens EF 837 Series Spezifikationen Seite 40