8 DATA TYPE MAPPING ToC Previous Next

Mapping rules from data type in CSP+ for machine to the OPC UA DataType are shown in Table 81.

Table 81 – Mapping Rules between Data Type in CSP+ for Machine and OPC UA DataType

No ToC

No. Data type in CSP+ for machine (Left: Classification, Right: Data type) OPC UA DataType Remarks  
1. Boolean type BOOL Boolean Map “0” in the CSP+ for machine to “FALSE” for OPC UA and map “1” in the CSP+ for machine to “TRUE” for the OPC UA.
2. Binary type BIN8 Int16 The intention “Display values in bit unit” by the binary type is described by the ValueAsText Attribute.
Example: Set the ValueAsText Attribute to “00111010” in BIN8 or “0000000000111010” in BIN16 for the value 58 (0x3A).
3.   BIN16 Int16  
4.   BIN32 Int32  
5.   BINx
(x = 1 to 15)		 Int16  
6. Bit string type (Hexadecimal) BYTE UInt16 ValueAsText   Attribute   is used to describe hexadecimal.
Example: Set the ValueAsText Attribute to “0x3A” in BYTE or “0x003A” in WORD for the value 58 (0x3A).
7.   WORD UInt16  
8.   DWORD UInt32  
9.   BIT_STRINGx
(x = 2 to 15)		 UInt16  
10. Signed integral data type
(Decimal)		 INT8 Int16 -
11.   INT16 Int16  
12.   INT32 Int32  
13.   INTx
(x = 2 to 15)		 Int16  
14. Unsigned integral data type
(Decimal)		 UINT8 UInt16 -
15.   UINT16 UInt16  
16.   UINT32 UInt32  
17.   UINTx
(x = 2 to 15)		 UInt16  
18. BCD integral data type
(Decimal)		 BCD8 UInt16 Numerical value notation in BCD as one decimal per 4 bits is described by the ValueAsText Attribute.
Example: Set the ValueAsText Attribute to “58” in BYTE or “0058” in WORD for the value “58”.
19.   BCD16 UInt16  
20.   BCD32 UInt32  
21.   BCDx
(x = 4,12)		 UInt16  
22. Real data type
(Decimal)		 REAL Float -
23.   LREAL Double -
24. String type STRING(x)
(“x” shows an integer from 1 to 2048.)		 String -
25.   STRING_U(x)
(“x” shows an integer from 1 to 2048.)		 String
or
LocalizedText		 As the String DataType for OPC UA is in Unicode, mapping from STRING_U (x) data type in the CSP+ for machine is available. When a locale ID (e.g. “en-US”) needs to be specified, the mapping should be conducted to the LocalizedText DataType.
26. Time type TIME Int32 Use EngineeringUnits Property of the variable to specify a unit “ms” and use ValueAsText Attribute to describe a preset notation such as “T#3d11h45m15s123ms”.
27. Date type DATE DateTime -
28. Accuracy type ACCURACY Double -
29. IP address type IP_V4 String Describe the value in a string.
30.   IP_V4_64 String Describe the value in a string.
31. Aggregation type Data type + “()”
[Example] INT8(),
STRING(10)()		 - As this document does not specify any rules to the CSP+ for machine element having this data type, no DataType mapping rules are specified.
32. Array type Data type + “[“Number of elements +”]” - The OPC UA describes the array by the variable ValueRank Attribute (Number of array dimensions) and ArrayDimensions Attribute (Number of elements for each dimension).

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