Siemens EF 837 Series Specifikace stáhnout pdf (Strana 41)

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

3BSE056248 41

HI redundant or hot replacement I/O to redundant PM865

In total max 42 pairs of modules but limited by:

• TB840A Power supply capability.

• Required scan cycle time.

• Required CPU load.

Supported modules:

DI840, DO840, AI843, AO845, DP840, DI880, DO880, AI845, AI880A. 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. It is possible to mix

clusters with and without redundant I/O but not on the same cluster. See non-redundant I/O

for information.

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Siemens EF 837 Series Specifikace Strana 41