Issues with the CS3000 function block
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The single-trigger block TON outputs 1 only during one scanning cycle, but I have seen configurations that use it to control the power on/off of solenoids, and the power on/off state of these solenoids remains unchanged as long as the conditions stay the same. I don’t know how it’s controlled. Thank you to that hero for helping to explain!
TON is a pulse output triggered by a rising edge; a pulse with a duration of one second is generated only when such a rising edge is detected. Under unchanged conditions, this action occurs only once
Thank you for your answer. Why is that DO point, which operates only once, still producing output?
In Yokogawa’s logic diagrams, the assignment that follows can succeed only when the condition is true; the subsequent actions are carried out only when the output of TON is 1, and they are not carried out when it is 0. If power is supplied when the value is 1, then as long as the condition remains unchanged and no manual changes are made, power will continue to be supplied. Additionally, it would be best to include a diagram
Is it used on double-acting actuators?
Change the execution method of the following functional blocks