IFCID area

You must specify the IFCID area on READS and WRITE requests.

Begin program-specific programming interface information. The IFCID area contains the IFCIDs to process. The following table shows the IFCID area.
Table 1. IFCID area
Hex Offset Data type Description
0 Signed two-byte integer Length of the IFCID area, plus 4. The length can range from X'0006' to X'0044'. For WRITE requests, only one IFCID is allowed, so the length must be set to X'0006'.

For READS requests, you can specify multiple IFCIDs. If so, you must be aware that the returned records can be in a different sequence than requested and some records can be missing.

2 Signed two-byte integer Reserved.
4 Hex, n fields of 2 bytes each The IFCIDs to be processed. Each IFCID is placed contiguous to the previous IFCID for a READS request. The IFCIDs start at X'0000' and progress upward. You can use X'FFFF' to signify the last IFCID in the area to process.
End program-specific programming interface information.