Get Full DB Layout From PLC

[DavoedM]

Hello,

I can see how to create a layout for a known DB in the util example section. What I would like to be able to do is to create a layout, even if it does not have variable names from info gathered from the PLC.

Is this possible? TIA can obviously get this data, including vaiable names comments etc from a PLC, but is it possible to do this with Snap7/python-snap7?

Thanks,
David

[spreeker]

I'm pretty sure TIA does not get variable names / comments directly from the PLC all this information is NOT stored on the PLC. Variable names comments are stored in de project files of siemens / TIA reads those. PLC's have very little memory. Snap7 cannot read this information because it is and never will be stored on the PLC.

[xx1raven1xx]

This statement is true for controllers of the S7 300 and S7 400 family. S7 1500 controllers can store the names of variables in themselves.

[mateusz-glowinski]

@xx1raven1xx Can i somehow get the names using this package for S7-1500 family?

[gijzelaerr]

Closing as answered. Variable names and comments are not stored on the PLC -- they exist only in the TIA Portal project files.