Yokogawa sequential control block ST-16 issue
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Question 1: Can the corresponding action steps taken when conditions are not met be controlled manually? Question 2: Once the conditions are met, is the corresponding action always set to Y, and cannot it be changed manually? Question 3: For this sequential control block, regardless of whether the conditions for the previous steps are met or not, it will execute its own action as long as the conditions for its own step are satisfied. How can I set up sequential execution? It seems that it should execute the THEN clause to write down the number for the next step, while executing the ELSE clause if the condition is not met. Right! Actually, I can give it a try on my own, but I still want to ask?
The last edit to this post was made by jlshnlhj on 2018-10-11 at 11:46. Sequential control means meeting specified conditions ((Y/N); even if it’s N, that condition still needs to be met). It also involves carrying out specified actions ((Y/N), with N being a possible option for the action). 1. “Question 1: Can the action steps taken when conditions are not met be controlled manually?” ” Regarding this diagram alone: Condition Y corresponds to action Y; when the condition is not met, the corresponding action steps can be carried out manually. 2. “Question 2: Once the conditions are met, is the corresponding action always set to Y, and cannot it be changed manually?” ” Just regarding this diagram: if Output Timing is C, it can be changed by setting it to Y; if it is E, this isn’t possible – making the change has no effect, as it will be Y again in the next cycle. 3. It’s basically correct, no further explanation is needed.
If Output Timing is ?C or E, where can this be changed? Is there a picture?
The “C” in “TC” in the figure.