Status-Control(...) Negative-Acknowledge-1

The Status-Control(...) Negative-Acknowledge-1 message flows from the node to the application and from the application to the node. It is used with a PLU connection.

struct Status-Control(...) Negative-Acknowledge-1 {
    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;
}; 
 

LUA only (see Remarks):
Element

struct Status-Control(...) Negative-Acknowledge-1 {
    PTRBFELT   hdreptr->elteptr;
    INTEGER    hdreptr->startd;
    INTEGER    hdreptr->endd;
    CHAR       hdreptr->trpad;
    CHAR[268]  hdreptr->dataru;
}; 
 

Members

nxtqptr
Pointer to next buffer header.
hdreptr
Pointer to buffer element (NIL if not using LUA).
numelts
Number of buffer elements (0x00 if not using LUA).
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 ACKNEG1 (0x03).
sfhdr.stctlhdr.ctltype
Control type.
sfhdr.stctlhdr.ctlack
Reserved.
sfhdr.stctlhdr.ctlflag1
Application flag 1.
sfhdr.stctlhdr.ctlflag2
Application flag 2.
sfhdr.stctlhdr.ctlnumb1
Sense code 1.
sfhdr.stctlhdr.ctlnumb2
Sense code 2.
sfhdr.stctlhdr.ctlmsgk
Message key.

LUA only (see Remarks):
Element

hdreptr–>elteptr
Pointer to buffer element (NIL).
hdreptr–>startd
Start of data in this buffer element

13 or
10 for second and subsequent segments of outbound segmented RUs

hdreptr–>endd
End of data in this buffer element.
hdreptr–>trpad
Reserved.
hdreptr–>dataru
Data RU.

Remarks