HP 24SII manual

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.