MAP parameter
The MAP parameter specifies which DDxxRL dataset member is used to format data for an FPRINT or VPRINT function or parameter. For the Compare function, LAYOUT specifies the member name for DDxxRL and DDxxRLN.
The specified member must be a valid COBOL or PL/I record layout. The MAP parameter is required if the DDxxRL DD defines a PDS, LIBRARIAN, or PANVALET library. (See FPRINT (FP) for information regarding the use of alternate copy libraries.) If the DDxxRL DD defines a specific PDS member, or is a sequential file, the MAP parameter is not required. The MAP parameter is an alias for the LAYOUT parameter.
The syntax of the MAP parameter is:
MAP=name
name
Valid member name of up to eight characters.
Example:
This example prints the data set in formatted mode according to the record layout in the TAPELOG member of the DD01RL DD.