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

36 3BSE056248

Direct I/O to non-redundant AC 800M Controller

In total max 96 modules but limited by:

• PM8xx and TB820 Power supply capability.

• Required scan cycle time.

• Required CPU load.

Supported modules:

DI880, DO880, AI880A are supported if PM865 and TB840A (instead of TB820).

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.

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Siemens EF 837 Series Spezifikationen Seite 36