Saia-Burgess
Controls Ltd.
Manual PCD7.D23x│Document 26/795; Edition E7│15.04.2005
Software
Free Terminal Protocol Mode
4-16
4
mand. In inactive state also all key entries are lost. In active state the terminal will
react on all commands.
Key entries are queued and can be requested using the Free Terminal Protocol poll
command.
Free Terminal Protocol Mode display commands
If the PCD7.D23x is set active most direct mode text display commands are sup-
ported.
In addition to that, compatible to the PCD7.D795, the following special commands are
added:
D23x Command
Free Terminal Protocol Mode
Description
Details
0x1b 0x41<y><y><x><x>0x04
<ESC>A<y><y><x><x><EOT>
Move the access
position to position
yy=00...07:
line position
xx=00...19:
column position
The position is ASCII coded BCD
code. Position 0 corresponds to
the left hand upper line home posi-
tion. It‘s code is 0x30 0x30 (‚00‘).
Note:
In the PCD7.D23x protocol (and
on earlier PCD7) the x position
is the vertical, and the y position
the horizontal position with the x
parameter as first parameter
0x1b 0x46<d><d><x><x>0x04
<ESC>F<d><d><x><x><EOT>
Move the access
position relative
dd=00: up
dd=01: right
dd=02: down
dd=03: left
Repetition count
horizontal
xx=01...19
vertical
xx=01...07
The parameters are ASCII coded
BCD
Handling is as with the PCD7.
D23x direct mode with wrap to the
start of the line at cursor right and
equivalent wrap to the end of the
line at cursor left. For cursor right,
up and down the equivalent direct
mode command can also be used.
The direct mode cursor left com-
mand 0x08 is replaced by PCD7.
D795 compatible backspace
handling.
0x08
Backspace
As direct mode backspace com-
mand 0x7f
0x1b 0x43 0x04
<ESC>C<EOT>
Clear screen
As direct mode clear screen com-
mand 0x0c
0x1b 0x5A 0x04
<ESC>Z<EOT>
Clear screen
As direct mode clear screen com-
mand 0x0c
0x1b 0x42<s><s>0x04
<ESC>B<s><s><EOT>
Cursor control
ss=‘00‘; cursor hide
ss=’11‘: cursor visible
in the currently se-
lected cursor mode
The cursor is by default in the
blinking underline mode.
The cursor display mode can be
set to full or underline mode, and
also set to blinking or continuous
mode using the PCD7.D23x direct
mode commands