CTU
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CTU
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IEC / CEI 1131-3 Compliant
The CTU object represents an UP COUNTER. A rising-edge on CU input will increment the counting by one. When the programmed value, applied to the input PV, is reached, the Q output become TRUE.
Applying a TRUE signal on R input will reset the counter to zero ( Asyncronous reset ).
The CV output pin reports the current counting value.
Net plugs
Plug |
Description |
CU |
A rising-edge on this input will increment the counter by one |
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R |
Applying a TRUE signal on this input will reset the counter |
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PV |
The Q output become TRUE when the current counting value reaches the value applied to this input. User should use a CONST or IDENT object to enter numerical constant |
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Q |
This output become TRUE when the counting is equal or greater than the programmed value |
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CV |
This output reports the current counting value |
See also : COUNTER, CTD, CTUD, IDENT, CONST