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HPGL Command Support
The MultiCam control system internally translates HPGL. Feedrate, Cut Height, and Lift Height can be set by
the file or by the machine’s keypad interface. If the Feedrate, Cut Height, and Lift Height are set at the machine
prior to the file being sent, the file will override all those values set at the machine. If no value is sent in the file,
then the machine will use the value programmed at the keypad. The control system ignores the HPGL VS
command.
At the beginning of the file, the controller must be sent the IN command to begin processing plot commands. If
the letter I is not the first character sent, then a linefeed or semi-colon must be sent to re-initiate the sequence. A
semi-colon must follow the IN command. If any other character is sent during this sequence, then the complete
sequence must be restarted. This command sequence must be sent again if an SP or an SP0 command is sent. The
recommended initialization string is “;IN;” and the recommended termination string is “SP0;”. All files should be
written in absolute mode. Some of the early systems do not support relative arc commands.
HPGL Resolution = 1016 inch =40 Metric
The following pages contain all of the supported commands. A semi-colon or a linefeed must terminate all
commands, and spaces cannot be substituted for required commas in the syntax of a command. All Z-axis
arguments are only valid if the 3D mode is set. All commands are integers unless otherwise specified.
Help documents on the HPGL and CNC systems are located in the
MultiCam folder, and operators can access
this folder through either Start/Programs/Multicam/Help/Translated PLT Help or Start/Programs/
Multicam/Help/Translated CNC Help.
Example Files
Multi Tool File
;IN;PU;ZZ0;
PA0,0;
TCTool 1;
ZD127;ZU400;
PA1016,1016;PD1016,1016;PD11176,1016;
PD11176,11176;PD1016,11176;PD1016,1016;
PU;TCTool 2;
ZD127;ZU400;
PA2032,2032;PD2032,2032;PD10160,2032;
PD10160,10160;PD2032,10160;PD2032,2032;
PU;TCTool 3;
ZD127;ZU400;
PA3048,3048;PD3048,3048;PD9144,3048;
PD9144,9144;PD3048,9144;PD3048,3048;
PU;PA0,0;
SP0;
Automatic Tool Changer File (or Multi Head)
;IN;PU;ZZ0;
PA0,0;
SP3;
ZD127;ZU400;
PA1016,1016;PD1016,1016;PD11176,1016;
PD11176,11176;PD1016,11176;PD1016,1016;
PU;SP1;
ZD127;ZU400;
PA2032,2032;PD2032,2032;PD10160,2032;
PD10160,10160;PD2032,10160;PD2032,2032;
PU;SP2;
ZD127;ZU400;
PA3048,3048;PD3048,3048;PD9144,3048;
PD9144,9144;PD3048,9144;PD3048,3048;
PU;PA0,0;
SP0;
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