Siemens 7 manual Power Down on PC Shutdown

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Multiplexer Driver Developer’s Guide

2.8 Power Down

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2.8.3Power Down on PC Shutdown

When the PC is shut down, the multiplexer mode is turned off and the strings from the Registry value “ShutDown” are sent to the module, if a virtual port is in use.

Note: During shutdown, some PCs may generate an impulse on the lines of the serial interface. In applications where the DTR line connects to the ignition line (IGT), an impulse received on DTR will immediately cause the module to be restarted from Power Down mode.

Mux_Drv_DevGuide_v07	Page 17 of 36	2006-9-27
Confidential / Released

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Contents User’s Guide Copyright General NotesContents Multiplexer Driver Developer’s Guide List of Tables TablesList of Figures FiguresDocument History Chapter What is newDocument History Multiplexer Driver Developer’s Guide Introduction IntroductionSupported Product Versions Supported Product VersionsAbbreviations Related DocumentsRelated Documents Abbreviation DescriptionArchitecture Hierarchy Chart in the SystemUser ArchitectureHandling of the Physical Serial Port Signal DescriptionModule Detection Handling of the Physical Serial PortHandling of Control Lines on Virtual Ports Handling of Control Lines on Virtual PortsLimitation of Virtual Ports Module Initializing Sequence Command Response Function Associated Registry ValueModule Initializing Sequence Power Down on PC Suspend Power DownPower Down after Closing the Last Port Module Re-initializationPower Down Power Down on PC ShutdownFiles Required for WinMux2k Driver Installation InstallationInstalling the WinMux2k Driver InstallationDeinstalling the Driver Deinstalling the DriverWindows Windows XP new desktop, not the classic desktopDevice Settings and Properties Device Settings and PropertiesSettings on the Serial Multiplexer Properties Value Data Example Properties Settings Stored in the Windows RegistrySettings Stored in the Windows Registry TC45, XC18 only Multiplexer Driver Developer’s Guide Values Data Example Properties Dial-up Network Settings Settings for ApplicationsFax Settings Settings for ApplicationsSoftware Requirements Translate Source CodePreparing the Translation Compiler FlagsAdditional Source Documentation Additional Source DocumentationInteraction of the Different Driver Objects Internal Driver States Internal Driver StatesBuffer Handling Buffer HandlingTo th e S e rM u x O b je c t a re in d ic a te d Data TransferMultiplexer Driver Developer’s Guide SerMuxSend and SerMuxSendPort0 Functions SerMuxSend FunctionStart +++-Parser +++-ParserBooting Operating System Known ProblemsShutdown of the Operating System Standby of the Operating SystemOperation on Virtual USB Port Special EnvironmentsAutomatic Shutdown in case of Emergency Special Environments