Rocket 204 - Host Language Applications; Selection of Terminal Support Mode; Using a CLIST; Invoking and Disconnecting from the TSO Interface

54 Rocket Model 204 Terminal User’s Guide
Invoking and disconnecting from the TSO interface
Each of these terminals provide slightly different capabilities, responses, and
default output parameter settings. The information supplied for these terminals
in Chapter 3 does not necessarily apply when the terminals are used
through TSO.
Host language applications
Most host language application programs that communicate with Model 204
through the host language interface can be run under TSO as called programs.
Refer to the Model 204 Host Language Interface Reference Manual and to the
TSO documentation for information about using host language application
programs.
Selection of terminal support mode
Two modes of TSO support are available to Model 204 users of IBM 3270
terminals: full-screen and line-at-a-time. Full-screen terminals allow the entire
screen to be formatted and displayed as a single entity whereas line-at-a-time
terminals print all screen inputs and outputs on a line-by-line basis.
To select the desired mode for an installation, the system manager must do the
following:
• Assemble, link-edit, and install the appropriate TSO programs.
• Set the IODEV parameter on the user’s parameter line for the terminal,
specifying 11 for full-screen TSO usage and 29 for line-at-a-time TSO
usage.
For more information about these system manager actions, see the Model 204
System Manager’s Guide. Much of the information in this chapter is presented
according to terminal IODEV setting. IODEV 11 terminals are full-screen and
IODEV 29 terminals are line-at-a-time. For the general features of full-screen
and line-at-a-time terminal processing, see Chapter 1.
Using a CLIST
A CLIST can be established by the system manager when TSO line-at-a-time
(IODEV = 29) and full-screen (IODEV = 11) User Language connections are
being used. This allows input to be passed to TSO from the CLIST, rather than
from the terminal, as described in the section titled “CLIST input” on page 56.
Invoking and disconnecting from the TSO interface
The steps required for logging in to Model 204 through the TSO interface and
for disconnecting from the TSO interface are described in this section.