How to connect two programs in two PLCs trough DeviceNet


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I am a student and I have a task to connect 2 PLCs (CJ1M DRM21 and CPM2C S100C) through DeviceNet and also to make a example programs in the CX-programmer version 7.2 to see the real connection between the 2 PLCs. I have already make the connection between the PLCs, but I have problems with the programs, because until now I have no experience with the CX-programmer.

I ask for manual or guide for CX-programmer for this type of communication between two PLCs and most important how to accomplished the connection in the programming environment. Maybe some example programs with such communication will help me to understand how to connect them together trough DeviceNet.