Python Snap7 S7 Siemens PLC TIA Portal Read/Write to Marker

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Discord channel for support:
/ discord
Used software:
- Tia V17
- PLCSiM Advanced V4.0
- Python 3.9.0
Links:
- github.com/Mareh07/plcwars-py... (used files)
- buildmedia.readthedocs.org/me... (Snap7 documentation:)
-stackoverflow.com/questions/5... (Convert Byte array)
- www.plcdev.com/step_7_elementa... (Elementary data types)

Опубликовано:

5 авг 2024

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Комментарии : 8

@wikiart44xD 2 года назад

Very cool video. The bald dude describes stuff well 🙃

@shaheersherif7366 Год назад

Thank you!

@eliudrodriguezh.5188 Год назад

refused by PLC, i follo as you tell us, " Optimized block access property should be off and PUT/GET must be enabled. Also CPU access protection should be set to full."

@MehdiVaezi-vq4qu Год назад

Hi Is it possible to program the PLC with this library? Is it possible to write the program using this protocol on the PLC?

@plcwars Год назад

Hi Mehdi, this is not what Python Snap7 is for, so you are not able to write plc program using it.

@wolfeer5365 Год назад

i'm getting this error while trying to read a db from a 1500: "line 403, in read_area check_error(result, context="client")" and "RuntimeError: b'CLI : function refused by CPU (Unknown error)'". Can this issue be fixed? Thanks

@plcwars Год назад

Hi Wolfeer, please have a look at my first video for snap7, ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-xSTfmCdepyw.html from 0:25. Optimized block access property should be off and PUT/GET must be enabled. Also CPU access protection should be set to full.