EM3270 Manual

IBM Host to Tandem SCS LU Type 1 Printer
Translation
A-6 110332—Tandem EM3270 Manual
EM3270 Emulation Description
Printer orders contained in the data stream are handled by the IBM 328x printer
emulation as described in Table A-7. In addition, any other unprintable characters are
printed as space characters.
IBM Host to Tandem SCS LU Type 1 Printer Translation
For IBM 328x SCS printer (SNALU type 1) sessions, the following commands issued by
the IBM host application are interpreted as shown in Table A-8.
Table A-7. Translation of Printer Orders
Printer Order EM3270 Emulator Action
New Line (NL) The NL order is executed only if the print operation is
unformatted as indicated in the WCC (bits 2-3 coded 00)
following the Write command. In a formatted printout, the NL
order is replaced by a space character and otherwise ignored.
End of Message (EM) The EM order is executed only if the print operation is
unformatted. In this case, the EM order causes any further data
in the buffer to be ignored. In a formatted printout, the EM
order is replaced by a space character and otherwise ignored.
Form Feed (FF) The FF order causes a skip to the top of form when
encountered in the first print position of a line or after a valid
NL or CR order. The FF order is replaced by a space character
prior to printing. An FF order encountered in any other position
is considered invalid, printed as a “<” character, otherwise
ignored.
Carriage Return (CR) When the CR order is encountered during an unformatted
printout, the next print position is the leftmost character
position on the current print line. In a formatted printout, the
CR order is printed as a space character and otherwise ignored.
Table A-8. SCS LU Type 1 Printer Parameters
Parameter Interpretation
Top Margin (TM) Locates the first print line of the page. The default value is 1.
Bottom Margin (BM) Locates the last print line of the page. The default value is 60.
Maximum Presentation
Line (MPL)
Physical form length.The default value is 66.
Left Margin (LM) Print position at which printing begins after a new line or
carriage return function. The default value is 1.
Right Margin (RM) Print position at which a bell sounds on input. This is not used
by the EM3270 emulator.
Maximum Presentation
Position (MPP)
Rightmost print position on the page. The default value is 132.