Siemens SIMATIC PCS 7 OSx Manuale Utente Pagina 19

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Using SIMATIC PCS 7 OSx @aGlance 1-5
SIMATIC PCS 7 OSx 4.1.1 @aGlance
With the components listed above, SIMATIC PCS 7 OSx @aGlance supports
the following types of information exchange.
Hot link automatically retrieves tag data as that data changes.
Cold link reads tag data on demand.
History retrieval reads trend data on demand.
Writeoperation—allowsyoutowritenewvaluestoselectedtags.
What Are the
Capabilities?
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