Communication block

The sixth fullword in the parameter list is the address of a fullword containing the address of the communication block.

The first request to EQQYCOM must be an INIT request, which establishes a communication session between EQQYCOM and your program. During INIT request processing, EQQYCOM builds a communication block representing the session and returns its address in the fullword whose address is in the parameter list. The communication block address provided must remain unmodified during each subsequent call to EQQYCOM until the end of the session, so that EQQYCOM can identify the session that requests are coming from.