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causes CICS to take a system dump when there is no task attached to the
terminal at the time of error detection, if the flag TWAOAT in TWAOPT2 is also
set on. Setting the TWAONQN flag causes the network qualified name to be
printed after any message that contains the action flag. Similarly setting the
TWAOTNA flag causes the TNADDR information to be printed.
The flags are:
TWAOAF (X'80')
Print action flags.
TWAORPL (X'40')
Print VTAM RPL.
TWAOTCTE (X'20')
Print TCTTE.
TWAOTIOA (X'10')
Print TIOA.
TWAOBIND (X'08')
Print BIND area.
TWAODNTA (X'04')
System dump if no task attached.
TWAONQN (X'02')
Print NQNAME.
TWAOTNA (X'01')
Print TNADDR (TCP/IP client address, port and, optionally, host name).
Note:
1. Note that DFHZC2411 is not related to a specific node—that
is, the TCTTE has not yet been created, and the message is
printed against a dummy TCTTE. The node error program is
not called in this case, therefore the default setting cannot be
overridden. This means that the NQNAME and the TNADDR
information is always printed for DFHZC2411 messges.
2. When DFHZC2410 is issued against the dummy TCTTE, the
NQNAME and TNADDR are not printed.
TWAOPT2
User option byte 2. TWAOPT2 contains flags which are task-related.
The NEP can abend the task by setting TWAOAT, or cancel it by setting
TWAOCT. The difference is that abend task does not take effect until the task
requests or completes a terminal control operation: cancel task takes effect as
soon as system and data integrity can be maintained. Setting TWAOAT to
abend the task is normally sufficient, except where the task performs lengthy
processing (such as a database browse) between terminal requests. If both
TWAOAT and TWAOCT are set, TWAOCT (cancel task) takes priority.
If the task is to be abnormally terminated, sends and receives are purged. If
TWAOGMM is set, the next transid is cleared and any communication area
associated with the terminal is released—except in the case of permanent
transids (specified on the TERMINAL definition as TRANSACTION(name)),
when the communication area is not released. If the TYPETERM of the terminal
indicates that the “good morning” message is supported (LOGONMSG(YES)), if
TWAONINT is off, and if the terminal is not in a BMS paging session, then the
492 Customization Guide