CTUD_INT block
Short summary
Name |
|
→POU type |
|
Category |
|
Conform to →IEC-standard |
no restrictions |
Graphical interface |
|
Available since |
version 1.19.0 (for Neuron Power Engineer) |
Functionality
The block is an up- and down-counter (for INT
values).
If there is a positive →edge at input CU
, the counter is activated and increments the counter value by 1
. If there is a positive edge at input CD
, the counter is activated and decrements the counter value by 1
.
If input R
is →turned on, the counter value is reset to value 0
. If input LD
is turned on, the counter value is reset to the value entered at PV
. If this value is reached or exceeded when counting up, output QU
is set to value TRUE
(or an equivalent). If the counter value reaches or falls below 0
when counting down, output QD
is set to value TRUE
(or an equivalent).
The incrementing is stopped, if the upper limit of INT
(= value 32,767
) is reached. The decrementing is stopped, if the lower limit of INT
(= value -32,768
) is reached.
Output CV
returns the current counter value of the block.
In-/outputs
|
Identifier |
Description |
|
---|---|---|---|
Inputs: |
|
|
increment in case of positive edge |
|
|
decrement in case of positive edge |
|
|
|
flag for reset to value |
|
|
|
flag for reset to value of |
|
|
|
limiting value for counting up |
|
Outputs: |
|
|
flag showing whether limiting value is reached or not |
|
|
flag showing whether value |
|
|
|
current counter value |
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.