Hello SOble,

please have a look at:

SIMATIC S7 S7-1200 Programmable controller, capter 11.5 S7 communication

-> https://support.industry.siemens.com/cs/de/en/view/107623221

The put/get function works only with s7 connection and therefore you don´t need to projekt it in TIA if ité programmed in S7-classic. Just set up the S7-connection unspeciefied and set ip Adress of the CP343.1LEAN and Rack/Slot Information of the plc at connection properties! 

In 315 plc with cp no programming is nessesarry, only make shure that IP-Adress is loaded onto cp.

Arno81

Hello SOble,

please have a look at:

SIMATIC S7 S7-1200 Programmable controller, capter 11.5 S7 communication

-> https://support.industry.siemens.com/cs/de/en/view/107623221

The put/get function works only with s7 connection and therefore you don´t need to projekt it in TIA if ité programmed in S7-classic. Just set up the S7-connection unspeciefied and set ip Adress of the CP343.1LEAN and Rack/Slot Information of the plc at connection properties! 

In 315 plc with cp no programming is nessesarry, only make shure that IP-Adress is loaded onto cp.

 BUT I cant add S7-connection unspeciefied in s7-300 with DP (profibus modul)

All I have is CP Lean , and i can not put S7-connection unspeciefied just with LEAN

Hello SOble,

If you only use S7 PUT / GET communication you do not need to create an S7 connection in the S7-300 cpu.

The S7-300 cpu is working as server and you create the connection and programming (PUT and GET) in the S7-1200 cpu.

You may want to look in the document:

CPU-CPU Communication with SIMATIC Controllers
https://support.industry.siemens.com/cs/dk/en/view/78028908