Communication between S7-300 (V5.5 SP3) and S7-300(TIA portal)

Hi,


I have a project where I must build communication between S7-300 (TIA) and S7-300(V5.5 SP3).

I found a document(https://support.industry.siemens.com/cs/de/en/view/92269951) that includes the instructions for doing the communication between S7-1200 (TIA) and S7-300(V5.5 SP3).

I guess this works also with S7-300 (TIA) and S7-300(V5.5 SP3)??

S7-300(V5.5 SP3) is old, maybe from 2003. There i use CP-343 module. New CPU is IM 151-8 PN/DP.

You need unspecified connection and then you can use put/get blocks on master side.

Im151-8 can be master. S300 with lean Card only slave

Ok, thanks.

And with CP-343-1 also older CPU can be also defined as a master, right?

Lean model Card can be only slave for ethernet. So you need code your master to 151-8 CPU

CP-343-1 Lean can be only slave

CP-343-1 can be master/slave

or?

CP343-1 Lean-model = slave only
CP343-1 = Master and slave
CPU 3xx PN/DP (build in profinet) =Master and Slave
CPU 151-8 = Master and Slave