Hi ,

Thanks for the reply !

I've seen this document before. But it explains communication between two standard PLC's? Did I miss something ?? Sorry if am asking something stupid 🫣

Towome

Hi,

I-Device function beween non Safety PLC an Safety PLC ist like communication between two standard PLCs. So check chapter "I-device in a standard environment" here:

Configuration and Application of the PROFINET I-Device Function

Regards,

Towome

 Ooh.. thats a relief.  I will try it out. Thank you for the guidance. 

sancruz

Hi,

it does work also betwenn F-CPU and non-F-CPU.

You do not need the "F-CD" transfer modules/E/As and also no SENDDP/RCVDP instructions.

Just configure one of the CPU as "I-Device" -> create your required transfer areas (E/A) -> compile hw -> export GSD file.

Install the GSD file in project of the controller. For Read/Write data from/to the E/As you can use DPRD_DAT/DPWR_DAT instructions instead.
As an alternative, you can use MOVE instructions or a user defined data typ for that, as in S7-1200/1500 the E/A are consistant.

regards

sancruz