Combining the Siemens S7-400 with S7-300?

S

Thread Starter

saad429

hi good morning everyone

i'm new here.

i work as instrument engineer in oil & gas engineering company and my question it's as bellow:

can we combine the Siemens S7-400 (for redundant CPU and power supply) with the S7-300 (IO rack)?

have good day :)
 
The Siemens S7-400 series and S7-300 I/O racks are designed to operate together.

For redundant operation, dual IM153-2 modules for Profibus operation are required in each S7-300 I/O rack to create a dual Profibus subnet.
 
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