Parameter(s)

1.2.2.3.4 Parameter(s)

I/O PCB or alternate PCB

Pointer to the PCB that represents the destination of the outgoing message

AIB

Specifies the application interface block (AIB) that is used for the call. This parameter is an input and output parameter. The following fields must be initialized in the AIB:

AIBID Eyecatcher.: This 8-byte field must contain DFSAIBbb.
AIBLEN AIB lengths.: This field must contain the actual length of the AIB that the application program obtained.
AIBRSNM1 Resource name.: This 8-byte, left-justified field must contain the PCB name IOPCBbbb (if the TP PCB is used), or the name of an alternate PCB (if an alternate PCB is used)
AIBOALEN I/O area length.: This field must contain the length of the I/O area that is specified in the call list.

I/O Area

Pointer to a buffer that holds a segment to be sent. For conversational transaction code, the first segment must be SPA.

MOD

Used for the output message, the 8-byte MOD name must be left-justified and padded with blanks as necessary. It can be only accompanied with the first segment into a message.

If MOD equals DFS.EDT or DFS.EDTN, the message bypasses MFS formatting. When MFS is bypassed on output, the application program is responsible for constructing the entire 3270 data stream (beginning with the command code and ending with the last data byte).

Parent topic: ISRT