All six parameters must be given in the function call even though only four have significance in a given call.
| Name | Type | Usage |
|---|---|---|
| INGRIB | INTEGER | Input field (GRIB) |
| INLEN | INTEGER | Input field length (words) |
| FLDIN | REAL | Input field (unpacked array) |
| OUTGRIB | INTEGER | Output field (GRIB) |
| OUTLEN | INTEGER | Output field length (words) |
| FLDOUT | REAL | Output field (unpacked array) |