HP 24SII - Manual (Page 62)


The Model 24SII DES powers-up from the factory in contention mode.

 
  
 

 
To select a specific peripheral in multiple printer/plotter applications,
the computer sends a port select sequence which consists of the
user-defined Port Select Code (factory default is: $SELECT), the
module number the printer is connected to (1 to 6), followed by the
desired printer port number on that module (1 to 4) and a terminating
character: 0D Hex (Enter/Return) or 0A Hex (Line Feed). The port
select sequence is trapped if valid and not passed to the printer.
For example, if you wish to select a printer which is connected to Port
2 of Module 2, you would send the following port select sequence:
$SELECT22<Enter/Return> or $SELECT22<Line Feed>.
All print jobs sent after you have selected a specific peripheral port will
be routed to that peripheral port until another peripheral port is
selected.
There are two modes for sending the Port Select Code. In Port
Select Mode A (printer selection anytime while printing), the Model
24SII DES looks for the Port Select Code anytime. If no Port Select
Code is received, the data will be routed to the last selected
peripheral port or to the default peripheral port (if the unit has just
been powered up).
In Port Select Mode B (printer selection at beginning of printing), the
Model 24SII DES looks for the Port Select Code in the first 16
characters received. If the first characters of the Port Select Code are
not received within 16 characters, the data will be routed to the default
printer port. If the first characters of the Port Select Code are received
within 16 characters and a valid port select sequence is subsequently
received, the data will be routed to the selected printer port.