Deswin

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Posts posted by Deswin

  1. Posted

    I'm doing a project called Retractable roof system which roof open when sunshine and roof close when rain. in addition in night the roof close completely and open back in morning and continue the whole cycle. So what i did in this ladder diagram I create is I add timer for night to close completely and to disable rain and light sensor,but the timer is still in on position and never let the two normally close T000 close again. So folks any solution for this problem whether should I add RSET or KEEP.

    Thanks for help and appreciate

    Screenshot (9).png

  2. Posted

    6 hours ago, Jay Anthony said:

    You are on the wrong track with when to use subroutines and your latch circuits have no release contacts.

    Many programs can be established without using functions.  How do you think we did it when there were no functions?

    What model PLC are you targeting? Are you using CX Simulator?

    I'm using OMRON CP1E. What I mean is i try to make a subroutine program that I want the ladder diagram repeat the process again. until it reaches another rung to stop the loop process.

  3. Posted

    16 hours ago, Jay Anthony said:

    You obviously need local integrator help.

    I'm still noob on this CX programmer and the instructions. Im only know how to use some instruction but not the complicated one. Searching from you guys like pro can teach good experience :) :) :)

  5. Posted

    14 hours ago, Jay Anthony said:

    All SBN's must be placed at the last of the program.  Any ladder program after the first subroutine will be ignored.

    SO how is the subroutine works baes on the shown ladder diagram. When the first coil 10000 is energize,it also activate the SBS also the coil in 10001 can be turn on or off and the coil 10002 is skipped and return to the first SBS. Am I right about the operation 0f this ladder diagram.

  8. Posted

    Hello folks!! I recently researching about how subroutine works in OMRON PLC because i want to apply in my project. So I make a example ladder diagram of subroutine and I dont know whether the ladder diagram is right or wrong. Please any PLC expert and pros can correct me. THanks for your concern guys

    Screenshot (56).png

  9. Posted

    4 hours ago, BobB said:

    You could set a done bit to restart the sequence. I do not have loops like this in my programs - perhaps someone else may be better to advise you than me here. Prviously I have set a done bit and used that to restart.

    how did you set a done bit. Im still NooB in PLC

     

  10. Posted

    16 hours ago, PenneyInstruments said:

    You should be able to use a jump function at the end of your code with a condition that applies to why you want it to keep repeating. So the code runs through its scans once, and if the repeat conditions on the jump rung is still true, it will just rescan from the beginning. Once those conditions on the jump go false, the code will not repeat and it will move on to the next bit of code that is not shown.

    how to establish the jump instruction in that ladder diagram so it can repeat the whole process. can show one example of ladder diagram with jump instruction. Glad to  thanks for your reply

  12. Posted

    On 5/12/2017 at 0:44 AM, gtsuport said:

    The Jump JMP and Jump End JME instructions work in pairs.

    When the logic conditions to the JMP instruction are true, the JMP is not executed and the logic will process as written.

    If the logic conditions to the JMP instruction are not true, the Jump is executed and the processor ignores all the logic between the JMP and the JME instruction.  That means that any output instructions that were on before the Jump is executed will stay on while the Jump is working.  Outputs will update per the logic once the Jump stops execution.

    Hope this helps.

    can I have a ladder diagram about the jump instruction so I can understand clearly