EM3270 Manual

IBM Host to Tandem SCS LU Type 1 Printer
Translation
A-8 110332—Tandem EM3270 Manual
EM3270 Emulation Description
(RM) is a byte that contains the number of the right margin
print position. The EM3270 emulator ignores this value. The
default value is MPP.
(T1) through (Tn) are bytes that contain numbers of print
positions defined as tab stops. Each value must be greater
than LM and less than or equal to MPP. Tab stop values are
not required to be in ascending sequence. When no tab stop
values are supplied, the tab operation becomes a space
operation.
The minimum SHF string is SHF 1; this tells the EM3270
emulator to use the default values. A zero supplied for any
value used in an SHF string tells the EM3270 emulator to
use the default value instead of zero.
If the SHF string contains a value that is not valid, the
EM3270 emulator returns X'1005' (invalid parameter sense
code) to the IBM host.
Set Line Density
(SLD)
8B46 The SLD order and its parameters are ignored.
Set Vertical Format
(SVF)
8B42 Sets the vertical format. The SVF string is:
SVF (cnt) (MPL) (TM) (BM) (T1) ... (Tn)
(cnt) is a byte that contains the number of bytes in the string
including the count byte.
(MPL) is a byte that contains the number of print lines per
page. The default value is the fixed-line capacity of the
device or a locally established value for the device.
(TM) is a byte that contains the number of the top line on a
page. The value must be less than or equal to the value of
MPL. The default value is 1.
(BM) is a byte that contains the number of the bottom line
on a page. When the current line number is greater than the
value of BM, printing skips to the line at the number in TM
on the next page. The value in BM must be greater than or
equal to the value in TM and less than or equal to the value
in MPL. The default value is MPL.
(T1) through (Tn) are bytes that contain numbers of lines
defined as vertical tab stops. Each value must be greater
than TM and less than or equal to BM, or zero. A zero value
is valid but is ignored. Vertical tab stop values must be listed
in ascending sequence, or the results are unpredictable.
Table A-9. SCS Printer Controls (page 2 of 3)
Printer Control
ASCII
Code
(Hex) EM3270 Emulator Result