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Course 3 Lesson 2: Narration Script | ||||||||
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Your decision to delete an existing program in order to load a new program must be a careful one. Once you have deleted a program, it cannot be recovered from within the memory of the control. | ||||||||
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You can only recover deleted programs by loading them back into the control from an external source or by re-writing them from scratch | ||||||||
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Therefore, any program you delete should either be backed up or small enough to be re-written quickly and easily. | ||||||||
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Depending upon the parameter set-up of the control, there may some programs which the control will not allow you to delete. On Fanuc controls, a parameter can be set to protect programs with part numbers from O8000 to O8999 or O9000 to O9999. | ||||||||
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When choosing programs for deletion, look first at the size of the program for the new job. This information should be included in the set-up documentation for the job. In this example, the new program will require 1187 bytes of space within the memory of the control. | ||||||||
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If this information is not included in the set-up documents, you may be able to check the size of the new program by viewing a directory of the source diskette or computer. On most controls, you can call up this directory much in the same way as the program directory for the control itself. | ||||||||
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This DRCTRY FLOPPY soft key appears on Fanuc models 10- through 15M. In order to view the contents of a floppy disk on these Fanuc controls, press this soft key instead of the DRCTRY MEMORY soft key. | ||||||||
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As you learned in the previous lesson, on Okuma controls, the floppy disk directory is specified by entering “FD0:” at the console line. | ||||||||
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When the WRITE key is pressed, a program directory for the current floppy disk will appear, showing the size of each program the diskette contains. | ||||||||
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Mazak users can view the contents of a floppy disk by calling up the DATA IN/OUT display for the Mazak CMT drive. However, before calling up this display | ||||||||
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you must first prepare the CMT drive by setting the track number you wish to view. | ||||||||
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Enter the track number using the keypad on the CMT. | ||||||||
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Page 5
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