Intermec CK30

Using Terminal Emulation ApplicationsChapter —2
12 TE 2000
 5250 Terminal Emulation Programmer’s Guide
You can set the postamble or preamble to any character from the extended
ASCII character set using these instructions. Type the literal ASCII value
in step 3 instead of the Field Exit code. To set the preamble, use the syn-
tax $+AD instead of $+AE. For more information about screen modes, see
Chapter 4, “Using the Terminal Emulation Menus.”
Special Function Keys
Special f u nction keys are:
S Attention Identification (AID) keys
S Cursor movement keys
S Signal keys
S Field Exit key
S Special control keys
S Special host keys
To enter a special function key:
Press the keys listed in the chapter f or the terminal. O r, scan the bar code
in Appendix A, “Bar Code Scanning.”
The following pages describe the special functions keys. For complete de-
scriptions, refer to the appropriate IBM 5250 reference manual.
AID-Generating Keys
AID-generating keys generate AID codes that go in the display data stream
to the host system. They alert the host system that the Intermec Applica-
tion Server or controller requires some action.
The terminal emu lates all of the AID-generating keys on a 5291 Display
Station. The following lists the keys.
Clear The system environment determines the results of this
key. If the terminal is in session, [CLEAR] issues the AID
code hex BD, which requests the host system issue a
Clear Unit command to the terminal to clear the display.
If not in session, [CLEAR] clears the entire display regen-
eration buffer.
Enter/Rec Adv Enters information.
F1–F24 User-defined command functions. Refer to your applica-
tion’s user manual for detail on the functions.
Help (nonerror state) Issues a hex F3 AID byte to the host system.
Print Tells the controller that the operator wants to print the
contents of the present display. Issues hex F6 to the host
system.
Record Backspace (Home) When pressed with the cursor in the home position, a
record backspace is requested. The AID code hex F8 and
cursor address are se nt to the h ost system.
Roll Up and Roll Down Roll display up or down one page. Roll Up issues AID
code hex F5. Roll Down issues AID code hex F4. For
more information on the Roll keys, see next page.