LIMITER_U block
Short summary
Name |
|
→POU type |
|
Category |
|
Conform to →IEC-standard |
not defined in IEC-standard |
Graphical interface |
|
Available since |
version 1.47.0 (for Neuron Power Engineer) - initial variant version 3.8.0 (for library |
Functionality
This block represents a hysteresis controller that switches abruptly between two states.
The block sets the value of the variable OUT
to 1
, if the value of the variable IN
falls below the value of L
. The variable OUT
is set to 0
, if the value of IN
exceeds the value of L
plus the hysteresis H
. Otherwise OUT
keeps its value.
If a negative value is set for H
, the value 0
is used for the hysteresis.
Restrictions The following restrictions apply to the usage of overloadable function block instances:
|
In-/outputs
|
Identifier |
Description |
|
---|---|---|---|
Inputs: |
|
|
input |
L |
|
limit |
|
H |
|
hysteresis |
|
Outputs: |
|
|
|
Input EN
and output ENO
are available when →calling the block. See "Execution control: EN, ENO" for information on input EN
and output ENO
.
See:
-
"Blocks for safe logic" whether this block is supported for developing safety-relevant applications.
-
"Highlighting safe logic in the FBD-editor" for the effects when using the block as a block for safe logic.
Example for usage within ST-editor
|
When creating your application within the ST-editor, enter a call of a block by typing the text as requested by the syntax or use Content Assist.