| [CAN] |
A soft key that cancels the current view on the Fanuc 0-C control. |
| [DELETE] |
A soft key on the Fanuc 0-C control that initiates a program file deletion on the Fanuc 0-C control. |
| [EXEC] |
A soft key that executes certain commands on the Fanuc 0-C mill control. |
| [FLOPPY] |
A soft key that displays the file directory of a floppy disk on the Fanuc 0-C control. |
| [I/O] |
A soft key that allows you to input and output floppy files of the Fanuc 0-C control when the floppy drive is not the default input/output device. |
| [LIB] |
A soft key that displays the program library on the Fanuc 0-C control. |
| [PUNCH] |
A soft key that initiates program output to a floppy disk on the Fanuc 0-C control. |
| [READ] |
A soft key that initiates the transfer of a file from a floppy disk to the control memory on the Fanuc 0-C control. |
| [RENAME] |
A soft key on the Fanuc 0-C control that initiates a file name change on the Fanuc 0-C control. |
| [SRHFIL] |
Search File. A soft key that displays the floppy disk file search function on the Fanuc 0-C control. |
| [STOP] |
A soft key that discontinues an operation on the Fanuc 0-C control. |
| address key |
The area of the MDI keypad that allows an operator to enter letters and special characters into the control. |
| addressed data |
Part program data consisting of alphanumeric CNC codes. Each code consists of a letter and number combination. |
| baud rate |
The number of changes per second to the media being transmitted. Also called the signaling rate, baud rate is measured by the number of signaling events per second. |
| binary digit |
Bit. The smallest unit of information on a computer. |
| bit |
Binary digit. The smallest unit of information on a computer. |
| byte |
Eight bits. |
| canned cycle |
A sequence of machine operations initiated by a single G code. Canned cycles act as shortcuts that simplify the program. Rough turning, finish turning, and peck drilling sequences are common canned cycles. |
| data bit |
In data transmission, a "1" or "0" that represents the most fundamental unit of information in a digital system. Bit is shorthand for "binary digit." |
| data rate |
The speed at which data is transmitted. Also called the bit rate, data rate is measured in bits per second (bps). |
| direct numerical control |
The direct control of CNC machines by a central host computer. With DNC, the program is run directly from the memory of a host computer and is not stored in the memory of the machine's own control. |
| directory |
A view on the display screen that lists all the part programs stored on a floppy disk. |
| EDIT mode key |
The key on the CNC machine that changes the operation mode to edit. Edit mode allows an operator to make changes to a part program and store those changes. |
| electronic transfer |
Any method of sending and receiving part programs on a CNC control involving either floppy disk, RS232, or direct numeral control. |
| end-of-block |
A character that marks the end of a part program block. An end-of-block character is represented by a semicolon (;) in a part program. |
| EOB |
A key that marks the end of a part program block. The EOB, or end-of-block character, is represented by a semicolon (;) in a part program. |
| F code |
A program code that determines the feed during a cutting operation. |
| floppy disk |
A 3.5 inch plastic device that stores programs and computer information magnetically. Standard removable floppy disks hold 1.44MB of data. |
| floppy disk drive |
A computer peripheral that reads and writes magnetic data to and from a floppy disk. |
| G code |
A programming code that determines the type of operation performed on the machine. |
| G01 |
A preparatory command that indicates linear interpolation, a type of movement along the machine axes. |
| I/O |
An abbreviation for input/output. |
| input |
The act of moving a part program from an input/output device to the memory of a CNC control. |
| INSRT key |
A key on the Fanuc 0-C control that inserts the text in the input buffer after the current cursor location. |
| M code |
A code used to signal an action from a miscellaneous group of commands. M codes change cutting tools, turn on or turn off the coolant, spindle, or workpiece clamps, etc. |
| M30 |
A miscellaneous code that signals a program end and rest. |
| M98 P### |
A miscellaneous code that calls a subprogram during part program execution. "P###" indicates the area of the program which is being called. |
| MB |
Megabyte. A unit of computer storage equal to 1,024 kilobytes or 1,048,576 bytes. |
| menu programming |
A feature of the Fanuc 0-C control that prompts a user to enter relevant data during manual programming. |
| MS-DOS |
Microsoft Disk Operating System. A computer operating system for personal computers, which has largely been replaced by the more common Windows operating system. |
| output |
The act of moving a part program from a CNC control to another device for transfer and storage purposes. |
| parity |
A simple error checking system used in serial communications. |
| part program |
A series of instructions used by a CNC machine to perform the necessary sequence of operations to machine a specific workpiece. |
| PRGRM function key |
A function key located on the MDI keypad that displays the program screen and blocks of the current part program. |
| program library |
A view on the display screen that lists all the part programs in memory. |
| RS232 |
A serial interface standard specified by the Electronic Industry Association for the interconnection of devices. CNC controls can send and receive part programs using RS232 standard connection cables. |
| S code |
A program code that determines the speed during a cutting operation. |
| soft key |
A key located directly below the display screen that has a different purpose depending on which function key has been chosen. The function of each soft key is visible on the display screen between brackets. |
| start bit |
A bit indicating the beginning of a data stream or the start of a byte of data. |
| stop bit |
A bit indicating the end of a byte of data. |
| T code |
A program code used to indicate the specific tool for a tool change. |
| X code |
A program code that indicates a specific coordinate position along the X-axis. |
| Y code |
A program code that indicates a specific coordinate position along the Y-axis. |