dOPC Client Toolkit
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EUType contains the type of Engineering Units (EU) information of the item (if any) contained in the property EUInfo.
Type |
Description |
OPC_NOENUM |
No EU information available. (EUInfo will be VT_EMPTY) |
OPC_ANALOG |
EUInfo will contain an array of exactly two doubles (VT_ARRAY | VT_R8). Corresponding to the LOW and HI EU range. |
OPC_ENUMERATED |
EUInfo will contain a array of strings (VT_ARRAY | VT_BSTR) which contains a list of strings. (Example: OPEN, CLOSE, IN TRANSIT, etc.) |
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