IBM W2H, 31x Appendix A. Input/output device commands, Character display VFD commands, Purpose

11-9-2005

Appendix A. Input/output device commands

This section lists the commands and their usage.

Character display (VFD) commands

The integrated customer display and distributed customer display use the same command sets.

This section describes the following character display commands:

vEmulation mode select

vCharacter set select

vUser character definition

vBrightness control

vAlphanumeric message scroll

vBackspace

vHorizontal tab

vLine feed

vCarriage return

vTest

vDisplay position

vNormal display

vVertical scroll

vCursor on

vCursor off

vReset

vNull

Note: The command code format shown in the following topics consists of the hex value followed by the ASCII representation of that value within brackets.

Emulation mode select (00) <NULL>

00nn

Purpose:

Sets the specified emulation mode.

00Logic Controls Emulation Mode (default)

01IBM mode

Example:

This example sets Logic Controls emulation mode:

00 00

Character set select (02) <STX>

Note: This command is effective only in IBM Mode.

02nn

© Copyright IBM Corp. 2002, 2004 A-1