Converts the 2-byte BI field at positions 252-253 of the input record to two EBCDIC digits at positions 13-14 in the output record. Examples: X'0001' -> '01', X'0015' -> '21', X'0100' -> '56'. Note that the 2 digits allowed by TT will cause the value to be truncated on the left if it's above 99 (X'0063'). That's why X'0100' will give '56' instead of '256'. The largest 2-byte BI value is X'FFFF' = 65535 and requires 5 digits -> EDIT=(TTTTT).