This structure contains a simple conversion according to the following formula. The factors (a = inititialAddend, b = multiplicand, c = divisor, d = finalAddend) are given in a Structure. X is the source value (in source unit) and f(x) the target value (in target unit). The structure is defined in Table 49.
The values of the structure can also be used for a simple inverse conversion. It can be used if a client wants to write a value to the server. The valuey1 is the value that the client wants to write to the server in the named alternative unit andx1 is the value the client actually has to write to the server instead.
Table 49 – LinearConversionDataType Structure
|
Name |
Type |
Description |
|
LinearConversionDataType |
Structure |
Subtype of Structure defined in OPC 10000-5 |
|
InitialAddend |
Float |
The initial addend of linear conversion. |
|
Multiplicand |
Float |
The multiplicand of linear conversion. |
|
Divisor |
Float |
The divisor of linear conversion. |
|
FinalAddend |
Float |
The final addend of linear conversion. |
Its representation in the AddressSpace is defined in Table 48.
Table 50 – LinearConversionDataType Definition
|
Attribute |
Value |
|||||
|
BrowseName |
LinearConversionDataType |
|||||
|
IsAbstract |
False |
|||||
|
References |
NodeClass |
BrowseName |
DataType |
TypeDefinition |
Other |
|
|
Subtype of the Structure defined in OPC 10000-5 |
||||||
|
Conformance Units |
||||||
|
Data Access Alternative Units |
||||||