CNC to PLC Help

[Chasberrypi 0]

I need some help on how data from a CNC is getting shared with the PLC? 
Its the CNC:I1:Input(Trasfer_BYTE0_Value),CNC:I1:Input(Trasfer_BYTE1_Value) CNC:I1:Input(Trasfer_BYTE2_Value) CNC:I1:Input(Trasfer_BYTE3_Value) thats confusing me

Or is it PMC to PLC?

 

I can provide any additional information if needed. 

Edited 3 Oct 2022 by Chasberrypi

[Joe E. 259]

In general, i/o tags in the Logix 5000 world that are marked "Input" are written by the field device and read by the PLC. Tags marked "Output" are written by the PLC and read by the field device.

[Olly_J 5]

I have to say I am not sure I understand your question but if you are asking where the  CNC:I1:Input array values come from, Joe E. is correct and I believe you should be able to find an object called "CNC" in your I/O tree. Or is your question about what the BTD instructions are doing?