Hello everyone!!

I have a project involving an  S7-1500 PLC and several HMIs. The HMIs have two Ethernet ports, with the second port currently unused. I would like to connect another PLC to the network by utilizing the free Ethernet port on the HMI and configuring the second PLC to read inputs from PLC 1.

Can this be achieved without modifying the program on PLC 1? I assume the new PLC will need to be integrated into the same network topology as PLC 1.

The second plc can be a S7-1200?

Thank you in advance!!

Hati

What HMI's do you have?

 Hey,
The first one is SIMATIC HMI KTP1000 and the second one is SIMATIC HMI KTP700.

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Hati

What HMI's do you have?

 Hey,
The first one is SIMATIC HMI KTP1000 and the second one is SIMATIC HMI KTP700.

 Both of those HMI's have only 1 network port on them.