COBCH1803 USAGE BINARY: 長さに１より小さい値、または１６より大きい値は指定できない

A data item declared as USAGE BINARY that contains a length specifier has specified an incorrect value.

Correct the declaration to fall within the permitted bounds.

01 valid-item   pic 9(4) USAGE BINARY(3)
01 invalid-item pic 9(4) USAGE BINARY(17)