For a description of the conditions associated with nonzero return codes and status codes related to failures in the DADSM functions, see DADSM/CVAF diagnostic aids. Some DADSM functions can return 4 bytes of diagnostic information (in the accompanying IEC614I message), which you should specify as modifier keywords. This diagnostic information consists of the DADSM error code, the subfunction identifier, the subfunction return code, and the subfunction reason code.

1. The DADSM return code is provided in register 15. Sometimes, it is provided in register 13 for extended data sets. Specify the return code exactly as the system provides it.

   Example: If the return code is 04, specify the modifier keyword as RC04.

2. The 4 bytes of diagnostic information are provided in register 0. See DADSM return and diagnostic codes for further information. If the diagnostic information bytes are relevant to your failure, specify them as a single modifier keyword in the following order:
   • DADSM error code
   • Subfunction identifier
   • Subfunction return code
   • Subfunction reason code

   Example: If the 4 bytes are 08170486, specify the modifier keyword as RSN08170486.

3. Continue below with the applicable procedure.