The VMTCON control file has a fixed format, with 80-character records containing format information for each TMC field to be converted. Each record of the control file identifies one TMC field with the location, length, and format of the input ddname record data. Control file records are free-format with one or more blanks separating each option. Records with an asterisk (*) as the first non-blank character are considered comments. Blank records are ignored.
Tmcfield format displacement length
Specifies the name of the TMC record field into which the input data is to be converted. These field names are the same as those used by the CA VM:Tape EDIT command.
Note: For further information about TMC field names, see TMC Reference.
Specifies the format of the input data field to be converted. VMTCON handles five types of input data as shown below:
Specifies that the 1- to 256-byte input field is in EBCDIC character format. Input processing simply ORs the data with a blank string to ensure that the characters can be printed in uppercase.
Specifies that the input field is in Gregorian date format. The 8-byte character field can contain a leading or trailing blank. Input processing converts the Gregorian date (mm/dd/yy) to a 5-character Julian value (yyddd).
Specifies that the input data field is 1 to 4 bytes of hexadecimal data. Input processing converts the field to an 8-byte EBCDIC hexadecimal with leading zeros.
Specifies that the 1- to 8-byte input field is in signed, packed decimal format. Input processing converts the data to an 8-byte zoned decimal field.
Specifies that the 5-byte input field is a time of day in hh:mm 24-hour clock notation. Input processing removes the colon (:), creating a 4-byte EBCDIC field.
Specifies the location of the input record data relative to 0. The displacement value plus field length must be within the range of the input record’s logical record length.
Specifies the length of the input record data. The displacement plus length value of the field must be within the range of the input record’s logical record length.
Important! If you do not specify a value for the COUNT field of the TMC, CA VM:Tape will use default values for density and label type the first time a tape is mounted. Values for density, label type, recording technique, and record format must be those chosen from the allowable values specified in TMC Reference.
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