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TWAOGMM (X'08')
“good morning” message to be sent
TWAOPBP (X'04')
Purge any BMS pages for this session
TWAOASM (X'02')
SIMLOGON required.
Notes:
1. If a definite response SEND has been performed, CICS has to issue a
RECEIVE in order to obtain the response. If the response is negative,
DFHZNAC is entered and sets flags TWAOAS (abandon the SEND) and
TWAOAR (abandon the RECEIVE). TWAOAR must be left on to ensure that
the RECEIVE for the response is abandoned.
2. If the request is to be retried, and the break connection action flag is off
(that is, if TWAOCN in TWAOPT3 is off), then one or more of TWAOAS,
TWAOAR, and TWAONEGR must be off as well as TWAOAT.
3. The abend code returned as a result of setting TWAOCT is unpredictable.
4. TWAOGMM forces TWAOAT only if set on by the node error program.
5. TWAOPBP forces TWAOAT to be set on.
6. For non-pipeline terminals, TWAOAT acts as a cancel request (TWAOCT) if
the task has not yet been dispatched for the first time.
TWAOPT3
User option byte 3. TWAOPT3 contains flags which are node-related.
The flags are:
TWAOINT (X'80')
Internally generated logons (INTLOGs) allowed
TWAONINT (X'40')
No internally-generated logons allowed
5
TWAONCN (X'10')
Normal CLSDST (no reset allowed)
TWAOSCN (X'08')
Normal CLSDST (reset allowed)
TWAONEGR (X'04')
Send negative response
TWAOOS (X'02')
Keep node out of service
TWAOCN (X'01')
CLSDST node.
5
TWAONINT forces TWAOCN.
TWAONEGR forces TWAOAR and TWAOAT.
TWAOOS forces TWAOCN.
TWAOCN forces TWAOAR, TWAOAS, and TWAOAT.
5. Do not set this flag when processing error code X'49' (TCZCLSIN).
when an abnormal condition occurs
Chapter 9. Writing a node error program 463