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smcardle

Determine if a user is logged in

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Hi Guys I'm new to Omron PLC's and the NB HMI series terminals. I have a question regarding the status of a currently logged in user. What memory area bit can I check to see if a user is actually logged in ? Secondly, where can I find a document that shows the memory areas and any system words/bits ? I found bits and pieces here and there but nothing that shows the memory area layout in full. Regards Steve

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The manuals get installed with the program, here: Section 3-11 of the Operations Manual has the system bits and words in it. You can also see the system words when you use an object on the screen. For instance, when adding a numerical display, you can check the System Memory button on the Basic Property tab and it will show the system words (in this case, since it is a word function) with descriptions. If using Security Levels, then LW9042 has the current security level shown. If using Permissions, then LW9504 and LW9505 (32 bits) contain the current user authority.

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