Scalance switches for S7-1500 PLC and S7-300 PLC

Dear experts,

Because of the distance between the S7-1500 PLC and S7-300 PLC , it has been decided to use instead of the PN-PN coupler two Scalance switches X206-1 . These two switches will communicate through a fiber optic cable . I have attached  a network layout sketch .

Now obviously the logic considering S7-1500 outputs as S7-300 inputs in order to be transferred can no longer be taken into account since the PN-PN coupler has been replaced with the 2 Scalance switches .

In my understanding , what  William_B has suggested at the beginning of the thread , meaning using the PUT and GET functions of the S7-1500 CPU to send/receive data to/from S7-300 CPU now makes sense for this new network configuration.

Even though it's not going to be a direct profinet connection between the two CPUs  I see no reason not to use PUT and GET function in order to communicate with S7-300 PLC.

Is my understanding correct ?

regards

aney_312 

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Split from Pn/PN coupler in TIA Portal.

Your understanding is correct.

Now you can make a normal S7 connection and make PUT/GET commands.