Library for Building Automation Function Block Descriptions ... - Wago
Library for Building Automation Function Block Descriptions ... - Wago
Library for Building Automation Function Block Descriptions ... - Wago
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Unpack SNVT Switch (FbUnpackSwitch)Unpack SNVT Switch (FbUnpackSwitch)WAGO-I/O-PRO CAA <strong>Library</strong> ElementsCategory:<strong>Building</strong> <strong>Automation</strong>Name:FbUnpackSwitchType: <strong>Function</strong> <strong>Function</strong> block X Program<strong>Library</strong> Name:<strong>Building</strong>_common.libApplicable to: Feldbus-Controller 750-819Input Parameter: Data type: Comment:dwSNVT_switch DWORD Input signal of the configuration variableof the SNVT_switch typeFeedback Value: Data type: Comment:bValue BYTE Output value <strong>for</strong> the element “Value“ ofthe SNVT_switchxState BOOL Output value <strong>for</strong> the element “State“ ofthe SNVT_switchGraphical Display:<strong>Function</strong> Description:The function block “UnpackSwitch” is used when a configuration variable(Configuration Property) of the SNVT_switch type from the LNS Plug-In PRIO(Neuron chip) is passed to WAGO I/O PRO (C165). The configuration values arepassed via a Retain Variable of the DWORD data type. In order to access thestructure elements of the SNVT_switch variable it is necessary to unpack them. Thefunction block “UnpackSwitch” converts the input signal dwSNVT_switch into the twoelements bValue (dimmer) and xState (switching state).Subject to design changes WAGO Kontakttechnik GmbH & Co. KG Postfach 2880 • D-32385 Minden Tel.: 05 71 / 8 87-0 E-Mail: info@wago.comCopyright © 2009 Hansastr. 27 • D-32423 Minden Fax.: 05 71 / 8 87-169 Web:http://www.wago.com73
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