When you use this instruction, when you set the current loop count (INDX), the start value (INIT) and the end value (FINAL), every time I0.1 action, it will execute a loop between FOR and NEXT, and after the loop is finished, the INDX value will be incremented by 1, and this result will be compared with the end value.
If INDX is greater than the end value, the loop will be terminated, and after termination ENO will output a drive signal, which is generally used as a marker for the end of the loop.
In practice, it is not necessary to use the physical output Q*. *, you can use M*. * contact for the following program to provide drive support, of course you if this loop is the end of the loop, is intended to be seen, use the physical output Q*. * is not out of the question.
Product Classification
Programmable controllers were created by the needs of modern production, and the classification of programmable controllers must necessarily conform to the needs of modern production.
Generally speaking, programmable controllers can be classified from three angles. One is from the programmable controller control size to classify, the second is from the programmable controller performance to classify, and the third is from the programmable controller structure characteristics to classify.