Display Data Stream—Chapter 6
271TE 2000
5250 Terminal Emulation Programmer’s Guide
Output Commands
Some output commands have associated data and control information
(write characters and orders). The Write commands are executed immedi-
ately.
Clear F ormat Table
Function
The Clear Format Table command clears the format table without erasing
data in the display buffer.
Restrictions
The terminal rejects the command when in an error, system request, or SS
message state.
Note: If the display supports a separate message line, and the message line
is selected, the command is rejected only f or the system request and SS
message states. The command is processed with the display in error state.
Format
The command takes the following f orm:
ESC Clear Format Table Command
Hex 04 Hex 50
Results
The following list describes what h appens when this command is executed.
S The keyboard is locked.
The keyboard clicker is turned off.
The Input Inhibited annunciator is turned on.
The insert mode is cleared (as is the annunciator).
S The format table is cleared. The format table header formats as follows:
Format ID Hex 00
First field transmitted to host system 0 (Resequencing is disabled)
Error line Bottom line of display
S Thesysteminsertcursoraddressissettorow1,column1.Thisclearsa
previous Insert Cursor order.
S Any pending AID request is cleared.
S All keying history is cleared.
S The master MDT bit is cleared.
S A blinking cursor caused by waiting for a required Field Exit key is
reset.
Note: Operator-selected reverse image and the Message Waiting annuncia-
tor are not affected by this command.
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