6.1.3.4.1 MOVE
Function
Assignment ( := ), transfers the contents of the operand at the IN input to the operand at the OUT output
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Parameter description
| Interface variable | Declaration | Data type | Description |
|---|---|---|---|
| IN | Var_Input | ANY | The value used for assignment |
| OUT | Var_Output | ANY | OUT:=IN |
Example
Assign the value of variable a to variable b through the move instruction, as shown in the figure below: Two DINT type variables are defined, and the move instruction is executed by compiling, downloading, and achieving the effect of a:=b
warning
- When MOVE supports STRUCT, IN and OUT come from a UDT definition
- When MOVE supports arrays, the IN and OUT array types are the same. Array type consistency standards:
- The data types of the elements must be the same, and the STRING type requires the length defined by STRING to be consistent
- The dimensions of the two ARRAYs must be the same
- The number of elements in all dimensions must be the same, but the specific ARRAY restrictions (starting subscripts) do not need to be the same
- Supports STRCUT arrays, but does not support FB type arrays
- MOVE does not support FB type