Intermec CK30

Display Data StreamChapter —6
276 TE 2000
 5250 Terminal Emulation Programmer’s Guide
Write Error Code
Function
The Write Error Code command forces the terminal into the prehelp state
(the same state the terminal enters when the operator makes a keying er-
ror).
Restrictions
A Write Error Code clears any outstanding AID requests. The terminal
rejects this command if it is in the prehelp, system request, or SS messages
state.
Format
Thecommandmaytakeanyofthefollowingforms.TheInsert Cursor
(IC) order may also be embedded in the error message.
Note: Headings in brackets indicate the individual field can be omitted.
However, both fields cannot be omitted. Provide either an Insert Cursor
order or error message to avoid an error.
ESC Write Error Code Command Insert Cursor Order
Hex 04 Hex 21 Position cursor
ESC Write Error Code Command Error Message
Hex 04 Hex 21 <message text>
ESC WriteErrorCodeCommand In sert Cursor Order Error Message
Hex 04 Hex 21 Position cursor <message text>
Results
You can use the IC order to place the cursor at the beginning of the field
where the error occurred. This helps the operator find the source of the
error. The IC order does not aff ect where the error message is written.
The terminal writes only the first 78 bytes of the error message to the error
line. If the error line is already used for error presentation, the terminal
saves data on the error line and restores it after the operator presses the Re-
set key.
When the operator presses the Help key (prehelp error state only) in
response to the error condition, characters from columns 2, 3, 4, and 5 of
the error line are returned to the host system in a packed form and sent as
a Signal command.