Posted 8 Oct 2009 I am looking at some (Plant Running ) S7 files . Some of them Have logic in OB82. My question is why would somebody added some preotected logic to the system OBs??. Isn't OB82 sufficent to capture Profibus fault?? Any Idea what kind of logic would be added to OB82?? Thanks Share this post Link to post Share on other sites
Posted 8 Oct 2009 Hi zeratul, Try this link for an explanation, and further links, from the Siemens web site. http://support.automation.siemens.com/GB/view/en/19350076 Share this post Link to post Share on other sites
Posted 9 Oct 2009 Code that triggers a HMI message "Profibus station either disappeared or reappeared !" Share this post Link to post Share on other sites