ATTN - Attention Key Interrupt Support

This Natural profile parameter controls the use of the attention key for IBM SNA terminals.

Possible settings ON The attention key causes Natural processing to be interrupted.
OFF The attention key is ignored.
Default setting ON  
Dynamic specification yes  
Specification within session no  


  1. Pressing the attention key can interrupt Natural processing with an appropriate error message (NAT1016).
  2. The availability of an attention key depends on the environment and on the terminal type.
  3. This functionality is also available for Natural in batch mode under z/VSE to interrupt a batch session; see NATVSE Attention Interrupts in the Operations documentation.