Attention
IronPLC can only run very simple programs. The steps described are accurate but many language features are not yet supported.
MUX¶
Multiplexer — selects one of several inputs by index.
IEC 61131-3 |
Section 2.5.1.5.5 |
Support |
Not yet supported |
Signatures¶
# |
Input (K) |
Input (IN0) |
Input (IN1, …) |
Return Type |
Support |
|---|---|---|---|---|---|
1 |
|
ANY |
ANY |
ANY |
Not yet supported |
Description¶
MUX(K, IN0, IN1, ...) returns the input selected by the zero-based
index K. The number of inputs is variable, and all inputs must be
the same type.
If K = 0, returns IN0
If K = 1, returns IN1
And so on
The behavior is undefined if K is negative or greater than or equal to the number of inputs.
This function is polymorphic: it works with any data type for the selected inputs.
Example¶
result := MUX(0, 10, 20, 30); (* result = 10 *)
result := MUX(2, 10, 20, 30); (* result = 30 *)