Data type in FactoryTalk Linx Gateway and OPC UA/DA Client
The data type shown in the UA Tag List and
Tag Browsed
pane uses the type names utilized by Logix5000
which is somewhat different from the names defined by OPC UA and DA. To clarify the map of the data type shown in different applications, the following table lists the corresponding data type relationship.FactoryTalk Linx Gateway | OPC DA | OPC UA |
|---|---|---|
BOOL | VT_BOOL | Boolean |
USINT | VT_UI1 | Byte |
SINT | VT_I1 | SByte |
INT | VT_I2 | Int16 |
UINT | VT_UI2 | UInt16 |
DINT | VT_I4 | Int32 |
UDINT | VT_UI4 | UInt32 |
LINT | VT_I8 | Int64 |
ULINT | VT_UI8 | UInt64 |
REAL | VT_R4 | Float |
LREAL | VT_R8 | Double |
STRING | VT_BSTR | String |
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