Posted 3 Mar 2008 Hi Do you know the equivalent instruction in siemens micro/win of Rockwell ONS (The ONS instruction is an input instruction that makes the rung true for one program scan upon a false-to-true transition of the conditions preceding the ONS instruction on the rung. Use the ONS instruction to start events that are triggered by a pushbutton, such as pulling values from thumbwheel switches or freezing rapidly displayed LED values.) Share this post Link to post Share on other sites
Posted 3 Mar 2008 Hi The Siemens Micro/Win pulse instruction is -IPI-. This instruction will become true for one scan of the P.L.C when every intruction upstream in the rung is true. Rodney Share this post Link to post Share on other sites
Posted 3 Mar 2008 I can't find IPI in my S7-200 CPU instruction list ? Share this post Link to post Share on other sites
Posted 3 Mar 2008 Mos89 You should find it under instructions and then bit Logic. It is positive transition and -INI- should also be there and that is negative Transition. Rodney Share this post Link to post Share on other sites
Posted 3 Mar 2008 Just wondering does he have English or German type instruction names? Share this post Link to post Share on other sites
Posted 3 Mar 2008 I have just tried the German type instruction but it is still the same. Rodney Share this post Link to post Share on other sites
Posted 3 Mar 2008 i think it is -P- for me i am using the french version if it is -P- i have another problem i have a compilation error : Share this post Link to post Share on other sites
Posted 3 Mar 2008 I have just copied your piece of program and there was no problem with the compilation. Check the rest of your program if you have incorrectly addressed somthing it will show in red. yiu can also look in help for a guide on compiler errors. Rodney Share this post Link to post Share on other sites