Status-Control(...) Negative-Acknowledge-2

The Status-Control(...) Negative-Acknowledge-2 message flows from the node to the application. It is used with a PLU connection.

struct Status-Control(...) Negative-Acknowledge-2 {
    PTRBFHDR  nxtqptr;
    PTRBFELT  hdreptr;
    CHAR      numelts;
    CHAR      msgtype;
    CHAR      srcl;
    CHAR      srcp;
    INTEGER   srci;
    CHAR      destl;
    CHAR      destp;
    INTEGER   desti;
    CHAR      sfhdr.stctlhdr.ctlstat;
    CHAR      sfhdr.stctlhdr.ctlqual;
    CHAR      sfhdr.stctlthdr.ctltype
    CHAR      sfhdr.stctlhdr.ctlack;
    CHAR      sfhdr.stctlhdr.ctlflag1;
    CHAR      sfhdr.stctlhdr.ctlflag2;
    INTEGER   sfhdr.stctlhdr.ctlnumb1;
    INTEGER    sfhdr.stctlhdr.ctlnumb2;
    INTEGER   sfhdr.stctlhdr.ctlmsgk;
}; 
 

Members

nxtqptr

Pointer to next buffer header.

hdreptr

Pointer to buffer element (NIL).

numelts

Number of buffer elements (0x00).

msgtype

Message type STATFMI (0x21).

srcl

Source locality.

srcp

Source partner.

srci

Source index.

destl

Destination locality.

destp

Destination partner.

desti

Destination index.

sfhdr.stctlhdr.ctlstat

Status type STCNTRL (0x02).

sfhdr.stctlhdr.ctlqual

Control qualifier ACKNEG2 (0x04).

sfhdr.stctlhdr.ctltype

Control type.

sfhdr.stctlhdr.ctlack

Reserved.

sfhdr.stctlhdr.ctlflag1

Reserved.

sfhdr.stctlhdr.ctlflag2

Reserved.

sfhdr.stctlhdr.ctlnumb1

Error code 1.

sfhdr.stctlhdr.ctlnumb2

Error code 2.

sfhdr.stctlhdr.ctlmsgk

Message key.

Remarks

• The Status-Control(…) Negative-Acknowledge-2 message consists of a buffer header only; there is no buffer element.
• See the table in Status-Control Message for a summary of Status-Control control type codes.
• See Error and Sense Codes for a list of error codes.
• The message key field matches the message key in the corresponding Status-Control request.