Hi experts and all

I have a S7-300 CPU and SIMATIC MANAGER . Six month back that CPU is loaded with one ladder logicprogram for one application. But unfortunately we lost that original back up of the loaded program.
So I tried to upload the program from CPU to PC. I could see the blocks and FC (inside the CPU) in online but I could not save or upload those blocks and FC to my computer.

Please let me know how to upload the programs from CPU to my PC ?



Thanks

Regards

Mothilal

Mothilal

Hi experts and all

I have a S7-300 CPU and SIMATIC MANAGER . Six month back that CPU is loaded with one ladder logicprogram for one application. But unfortunately we lost that original back up of the loaded program.
So I tried to upload the program from CPU to PC. I could see the blocks and FC (inside the CPU) in online but I could not save or upload those blocks and FC to my computer.

Please let me know how to upload the programs from CPU to my PC ?



Thanks

Regards

Mothilal

how to backup from 315 cpu

Please check the following tpics:
Complete procedure of Uploading PLC S7 Project & program from PLC to PG

online

Also check the simulation module should be de-activated.When using
MPI connection, it is a common source of error.

Dear Mothilal,

This article will explain how to upload the S7-300 Siemens Program using Profibus DP câble, and cable MPI, as well as Ethernet cable.

Please check this link:

https://www.plctechnical.com/2020/03/upload-s7-300-siemens-program-using-Profibus-DP-cable.html

abdessamade adnane