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From: mario@hpindda.cup.hp.com (Mario Arias)
Newsgroups: comp.protocols.ibm
Subject: 3270 bisynch question
Message-ID: <5160006@hpindda.cup.hp.com>
Date: 17 Apr 91 18:16:15 GMT
Organization: HP Information Networks, Cupertino, CA
Lines: 18



A question concerning 3270 bisynch.  Does anyone know if an
RVI followed by status sense response of "DEVICE BUSY" is 
a legal response to a host device selection?  The 3274 
Control Unit description manual indicates that it is,
but it is not clear.

If a device is busy when a host tries to select it, should
a WACK be used to respond or can the above mentioned 
status sense message of "DEVICE BUSY" be used?

Any help or comments would be appreciated.


Thanks in advance,

Mario Arias