Hello all,

I have the next scenario:

-> PLC ET200S - P1 Connected to HMI, P2 Connected to the Industrial Network, P3 Connected to a PC 

-> In other place a Scalance m874-3 connected to the Industrial Network using the P1

What I want to do is send SMS using the Scalance when the PLC send send the action to the Scalance. I did the test connecting both PLC and Scalance directly using the P2 with an Ethernet Cable and everything worked good. The problem comes when I have the industrial network between these devices, I can't send ping to the plc from the Scalance but I can do it to the PC and some devices connected to the Industrial Network. The behavior is strange, sometimes some packets are received from the PLC when I do ping but the connection is unstable.

My future intention with all of this is to connect 3 PLC with 1 Scalance through the industrial network to send SMS.

Thanks for your help

Regards

Yes of course. Here you have an image

Thanks