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| 7/14/2010 12:45 PM | |
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Posts: 691 Rating:
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What do you mean |
| 7/15/2010 3:10 PM | |
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Posts: 232 Rating:
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HelloDeimus. Well if you only want to avoid somebody change's your program in your CPU then i recomend you to asign Pasword Protection to your CPU, in the folowing link you can check how to do it. Enabling Pasword Protection in a S7 CPU. Also check this thread: Pasword Protection. If you also want to register the time of a user go online, well honestly i do not know how to do it. Good luck. |
| 7/15/2010 7:51 PM | |
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Posts: 5 Rating:
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i know the options for protect the system with passwords but i dont want protect it just know the access to CPU. Tnx a lot for your time David |
| 7/16/2010 12:56 AM | |
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Posts: 54 Rating:
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just compare the time stamp of the block it eill tell you the time when it was all accesed |
| 7/16/2010 2:42 PM | |
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Posts: 5 Rating:
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tnx for the idea but i dont want do this thing |
| 7/16/2010 3:05 PM | |
Joined: 10/7/2005 Last visit: 1/11/2026 Posts: 3054 Rating:
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Hello Deimus I must admit it is a very interesting question that you raise here. It should in theory be quite simple to determine if someone has gone online in the CPU, as all you would have to do is to check if a (or another) PG connection resource is being occupied. Since PG connectionsare also listed and shown in the CPU's module information, one would assume that you could read out this info in your S7 program (and then react to it whichever way you intend to in your program). SFC51 is usually the block of choice to read out all sort of system status related things, problem is that the info that you are after does not seem to be provided by SFC51 (I at least can find a suitable SSL-IDfor it). I'm afraid to say that I can't think of any other possible way, but would love to hear from anyone who has a clever idea to achieve what you are trying to achieve. |
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Cheers |
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