Re: [Libnodave-users] Sending HW-Config over LibNoDave?

[Thomas H. <Tho...@we...>]

The hardware congiguration is contained in various SDBs (system data blocks). These data blocks can be read and sent using Libnodave.
But there is a problem: The CPU expects them in certain order which I do not know. If blocks are sent in a different orde, the CPU might not
accept them or show unexpected  behaviour.

You can experiment yourself:
- back up your CPU with Step7
- read all blocks using Libnodave (the test programs have an option to do that)
- look what SDBs you have got
- completely erase your CPU
- try to load the blocks again into your CPU
If it doesn't work, try a different order.
Try to read out HW-Config with Step7
Try to read it out after loading only some SDBs.
DO NOT BLAME ME IF YOUR CPU GETS UNUSEABLE!



-----Ursprüngliche Nachricht-----
Von: chr...@if...
Gesendet: 07.07.2011 12:00:01
An: lib...@li..., libnodave-hilfe
Betreff: [Libnodave-users] Sending HW-Config over LibNoDave?

>
>Dear all LibNoDave Users and Dear LibNoDave Creator(s).
>
>My coworkers and i started to use LibNoDave to work with an S7 - 319 PN/DP.
>Everything works fine so fare.
>We connected an PC over Ethernet to the Profinet plug on the PLC. Then we
>used libnodave to read/write I/O- and other memoryblocks succesfully.
>
>We also now that it is possible to load program blocks to the PLC.
>But we are wondering:
>Is it possible to upload an entire project and/or the hardware
>configuration into the PLC using libnodave?
>
>
>If someone has done this before or has an idea/comment, please send me an
>email.
>
>Thanks a lot in advance :)
>
>
>With best wishes
>
>C. Hayna
>
>ifm ecomatic gmbh
>
>Im Heidach 18
>88079 Kressbronn
>Germany
>
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