CTU

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IEC / CEI 1131-3 Compliant

 

ctu

 

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

 

 

R

Applying a TRUE signal on this input will reset the counter

 

 

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

 

 

Q

This output become TRUE when the counting is equal or greater than the programmed value

 

 

CV

This output reports the current counting value

 

See also : COUNTER, CTD, CTUD, IDENT, CONST