FEPI EXTRACT STSN

Function

The command is for SLU P mode only.

FEPI EXTRACT STSN gets sequence number status information for a conversation.

Syntax

Read syntax diagramSkip visual syntax diagramFEPI EXTRACT STSN
 
>>-FEPI EXTRACT STSN--CONVID(data-value)------------------------>
 
>--+---------------------+--+----------------------+------------>
   '-SEQNUMIN(data-area)-'  '-SEQNUMOUT(data-area)-'
 
>--+------------------+----------------------------------------><
   '-STSNSTATUS(cvda)-'
 

Options

CONVID(8-character data-value)
specifies the ID of the conversation for which information is wanted. The conversation must be owned by the task issuing the command.
SEQNUMIN(fullword binary data-area)
returns the current sequence number for inbound data.
SEQNUMOUT(fullword binary data-area)
returns the current sequence number for outbound data.
STSNSTATUS(cvda)
returns the current sequence-number set and test status. The relevant CVDA values are:
Value
Meaning
NOSTSN
No ‘set’ or ‘test and set’ issued.
STSNSET
‘Set’ sequence number issued.
STSNTEST
‘Test and set’ sequence number issued.

Conditions

The INVREQ condition can have the following RESP2 values:

RESP2
Meaning
211
Command not allowed for SLU2 mode.
240
Conversation ID not owned by this task.
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