74 Rocket Model 204 Terminal User’s Guide
IBM 3270 terminals (IODEV = 41, ALTIODEV =47)
Output page buffer settings
MODEL is reset only if the size of the output page buffer (LOUTPB) is large
enough to hold the new screen size. The minimum LOUTPB settings are listed
in Table 6-3.
Page header formats
HDRCTL consists of a series of switches that control the formatting of pages
transmitted to the terminal. Each switch can be set independently of the other.
HDRCTL can be reset to the following values for 3270 terminals, but usually is
not reset:
Handling messages from other terminals
When Model 204 is running in full-screen mode and one user sends a message
or a file to another user’s terminal using the z/VM facilities, confusion can
sometimes result. For example, suppose that user A sends a message to user
B’s terminal. The z/VM system interrupts user B’s Model 204 output and
displays the following message at the top of the terminal screen:
14:02:31
MSG FROM OPERATOR: TESTING
The HOLDING message appears in the status area at the bottom right corner
of the screen. User B must press the CLEAR or PA2 key to clear the screen
and return to Model 204. The remainder of the output is then displayed.
Suppose that user A sends a file to user B’s terminal. The z/VM system
interrupts user B’s Model 204 output and displays a file message such as the
following, at the top of user B’s terminal screen.
Table 6-3. Minimum LOUTPB settings
MODEL LOUTPB
01170
11170
22130
32770
43650
53774
0 Normal headers (system header showing date, time, and page number)
1 Suppress header 0 (system header showing date, time, and page number)
2 Suppress the blank line that normally follows header 0 for nonrequest
output
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