Posted 12 Dec 2019 (edited) Hi, I am new to this community. My intention is detect trigger action at D6 and D7 (using PLS and PLF one scan feature). I am here to ask how to reset the data bits in Data Registers, e.g., D6 and D7, as shown in Expected.pdf. My PLC ladder diagram is shown in Ladder Diagram.pdf. Best Regards, sengkai PLC Flinken v8.25 extreme D6&D7 stay at 1 after it is triggered.pdf Ladder Diagram.pdf Edited 12 Dec 2019 by sengkai changed the name of .png to .pdf Share this post Link to post Share on other sites
Posted 12 Dec 2019 You can use PLS instruction for first bit of D6 too. Share this post Link to post Share on other sites
Posted 12 Dec 2019 Hi, glanov. The PLC model is FX1N-24MR. The ladder diagram is developed in GX Works 2. Share this post Link to post Share on other sites
Posted 12 Dec 2019 Hi, tosza93 I will give it a try now. Thanks for replies. I will update the result here after I carry out the test. Share this post Link to post Share on other sites
Posted 12 Dec 2019 It won't work with FX1N 1 person likes this Share this post Link to post Share on other sites
Posted 12 Dec 2019 (edited) (Untitled Project).pdf Try this. You need to keep D6 and 7 values for one scan only, right? place M8000 NO contact on top of your code, it will set 0 in D6 and D7 at every scan start Edited 12 Dec 2019 by glavanov Share this post Link to post Share on other sites
Posted 12 Dec 2019 Hi, not a ladder but it should work as you want, if i understand it correctly Share this post Link to post Share on other sites
Posted 17 Dec 2019 Hi, glanov and sczot. I am sorry for cannot replied this post as soon as possible. I will try the proposed solution and respond here after I finished the urgent task on hand. Best regards, sengkai Share this post Link to post Share on other sites
Posted 18 Dec 2019 you can always use mask to set, reset or toggle specific bits. or... according to your timing diagram: Share this post Link to post Share on other sites