Visara SCON-20L Configuration Manual User Manual
Page 104
10-4
707044-006
SCON-20L/22L/25L/28L Configuration Manual
• MLS (Multiple Logical Sessions)
• Print Buffering
• Screen Preservation during ASCII Setup Mode
• ASCII Cut and Send
• Calculator Session
Calculating Presentation Space Storage
The following table documents the Presentation Space storage required for a single
display session while using functions which require that a screen image be saved.
PS STORAGE REQUIREMENTS FOR A SINGLE SESSION
E
Z
I
S
D
O
M
B
A
E
O
N
B
A
E
)
0
8
X
4
2
(
2
K
2
K
4
)
0
8
x
2
3
(
3
K
4
K
8
)
0
8
x
3
4
(
4
K
4
K
8
)
2
3
1
x
7
2
(
5
K
4
K
8
Extended Attribute Buffer (EAB) is used by devices for highlighting, such as reverse
video, underline and blinking text.
The Feature Memory Allocation panel displays the amount of feature memory available
for PS storage based upon the values defined in other fields. Any feature memory left
over after all other feature memory has been defined will be allocated to PS Storage.
The following sections document the PS Storage memory requirements for various
features. You should verify that your LINCS node has sufficient PS Storage memory to
support these features:
• Multiple Logical Sessions (MLS)
• Print Buffering
• ASCII Setup
• ASCII Cut and Send
We also provide a Presentation Space Storage Memory Worksheet, which you can use
to help calculate LINCS memory needs for Presentation Space.
Multiple Logical Sessions (MLS)
The memory required for MLS is used to maintain screen images and information for
each configured session. The screen image memory required is determined based upon
the mod size of the device as indicated in Calculating Presentation Storage Space. In
addition to the screen image for each session, 1K of memory is required to maintain
information about the session.