TransferFromDevice initiates the transfer of values from the physical device to corresponding Parameters in the offline representation of the Device. This Method has no input arguments. Which Parameters are transferred is based on Server-internal knowledge.
Once the transfer has been started successfully, the Method returns immediately with InitTransferStatus = 0. Any status information regarding the transfer itself has to be collected using the FetchTransferResultData Method.
The signature of this Method is specified below. Table 50 and Table 51 specify the arguments and AddressSpace representation, respectively.
Signature
TransferFromDevice(
[out] 0:Int32 TransferID,
[out] 0:Int32 InitTransferStatus);
Table 50 – TransferFromDevice Method arguments
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Argument |
Description |
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TransferID |
Transfer Identifier. This ID has to be used when calling FetchTransferResultData. |
|
InitTransferStatus |
Specifies if the transfer has been initiated. 0 – OK -1 – E_NotLocked – the Device is not locked by the calling Client -2 – E_NotOnline – the Device is not online / cannot be accessed |
Table 51 – TransferFromDevice Method AddressSpace definition
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Attribute |
Value |
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BrowseName |
TransferFromDevice |
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References |
NodeClass |
BrowseName |
DataType |
TypeDefinition |
Other |
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|
0:HasProperty |
Variable |
OutputArguments |
0:Argument[] |
0:PropertyType |
M |
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Conformance Units |
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DI Offline |
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