EN_TOUCH

Data_Type	Default_Value	Range	Unit
BOOL	-	-	-

Touch/catch operation is enabled through control bit (EN_TOUCH). This resets the status flag (NTOUCH), when the pre-determined edge occurs; the current counter value is stored in the touch value double word. In the same time, the status NTOUCH is set to TRUE.

A rising edge at input EN_TOUCH enables a catch/touch trigger measurement. If input EN_TOUCH = TRUE, a rising edge at input I3 (for counters 0-A and 0-B)) or I11 (for counters 1-A and 1-B) causes the Function Block to store the actual counter value ACT1 and ACT2 and to display this value at output CNT_TOUCH1 and CNT_TOUCH2.

The next measurement is again initiated by a rising edge at input EN_TOUCH.

If input EN_TOUCH is set to FALSE, the output RDY_TOUCH is set to FALSE.

Input EN_TOUCH corresponds to bit 6 in “control byte”.