Other IMS Connect structures

In addition to the IRM, messages handled by IMS Connect contain other recurring structures.

The following table shows other structures that are repeated until all data has been mapped to be returned to IMS Connect. The table lists the field name, the length of the field, and a brief explanation of the field.

Table 1. Other repeated IMS Connect message structures
Field Length Meaning
BPE header 64 bytes Defined in BPE header format.
OTMA structure 32 bytes The OTMA message control structure that is mapped by the IMS Connect macro HWSOMPFX.
LLZZDATA

The LLZZDATA field is repeated to a maximum of 32 KB overall length. If there is more data, then the structures continue.

 n bytes
  • LL - length of segment
  • ZZ - set to binary zeros
  • DATA - user data
LL 2 bytes LL - set to binary zeros to denote the end of this structure.