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II - DCE FEL ČVUT v Praze

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Influence of faults<br />

I/O Modules with Intrinsically-Safe Signals<br />

C79000-G7076-C152-04<br />

SIMATIC S7 Ex Analog Modules<br />

Faults occurring in analog modules with diagnostic capabilities and<br />

corresponding parameterization (see Section 3.6.3 ”Parameters of Analog<br />

Modules”) result in diagnositic entry and diagnostic interrupt. Possible faults<br />

are listed in Table 3-25 and 3-27 in Section 3.6.4.<br />

The SF LED and, if applicable, the channel fault LED light on the analog<br />

module.<br />

Faults which cannot be parameterized in diagnostics (e.g. fuse blown) result<br />

in an entry being made in the diagnostic range and the fault LED lighting<br />

irrespective of the CPU operating status.<br />

3-53

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