TR3271 Management Programming Manual

SECTION 1
INTRODUCTION
This section describes management concepts applicable to the
TR3271 subsystem in the 6100 CSS environment. Although the
utilities available in a non-6100 environment are mentioned, this
section is oriented to the application programmer responsible for
managing the TR3271 subsystem in the 6100 CSS environment. Some
of the concepts discussed are the types of objects controlled
by the TR3271 subsystem and the available monitoring and control
functions.
BRIEF OVERVIEW OF TR3271
In the Tandem environment, the TR3271 access method allows
an application program to access a host computer. The host
computer can be an IBM host or a Tandem host. TR3271 emulates
one or more 3270-family controllers with multiple terminals or
printers attached. TR3271 has two distinct configurations. In
one configuration, TR3271 communicates with an application (for
example, EM3270) that allows non-3270 terminals to access an IBM
host. In the other configuration, TR3271 can be linked to AM3270
to provide pass-through function using the pass-through protocol
(PTP). While in pass-through mode, data can be passed between an
AM3270 device and a host by means of TR3271 without requiring an
intervening application program.
OBJECTS CONTROLLED BY THE SUBSYSTEM
The TR3271 subsystem controls a process, line, and subdevices
(SUs). The SU object can be added using various interfaces,
but cannot be defined to SYSGEN. The PROCESS and LINE objects,
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