Bio-Rad CHEF Mapper® XA System - Manual (Page 32)

4.7 Storage and Recall of Programs
Storage of Programs
Programs can be stored in a battery backed-up RAM, and will remain when the power to
the CHEF Mapper system is turned off. They can be removed only by using CLR MEM (clear
memory) or by reinitializing the CHEF Mapper system using the comma key. When
programs are stored, they can be recalled at any time. In practice, about 20 programs can be
stored. The total number of programs stored depends on the complexity of the programs
(i.e., how many blocks, states, or interrupts are used). If the programs are very simple, it is
possible to store up to 99 programs.
To store a program, first enter the run parameters, then press STORE PGM. The screen
display will be: Enter stored User Program Number: or Enter to abort. Enter the number
that the program will be stored under. If the program number is available, the screen will
display, The Program Number assigned is : ##. Make note of it for future use. Press
ENTER to continue. If the program number is not available, the screen will display Duplicate
User Program Number - Check and reenter, or enter new Program. Press Enter and the
next screen will list available program numbers. Press Enter again to return to the screen to
enter the stored program number.
Note: Program number 00 is reserved for temporary storage of the current program after
completion of the run.
If the CHEF Mapper system runs out of memory while trying to store a program, the
message Not enough memory to store program - Delete another program, and try again
is displayed. You can decide not to store the program, or go back and delete one or more pro-
grams in memory, then store the new program.
Recall a Program
To recall a program, press USER PROGRAM. The display will be: Enter stored User
Program number: [ ] or Enter to abort. Press ENTER to cancel the command or enter the
number of a stored program, then press ENTER. If you enter a number that does not corre-
spond to a stored program, the display: User Program number not found - Check and
reenter, or enter a new Program will appear. A screen will appear listing the available
program numbers. Press ENTER to go back to the previous screen, then enter a new user
program number.
Clear User Program Memory
To clear a user program from memory, press CLR MEM. The display will be: Enter
stored User Program number: [ ] or Enter to abort. Press ENTER to cancel the command
or enter the number of a program, then press ENTER. After you enter a program number the
display This will delete User Program: ##. Delete? will appear. Enter 1 for yes or 0 for no.
CLR MEM deletes only one program at a time, not the entire memory. To clear the entire
program memory, hold down the comma key for six beeps. The display: Total Initialization
- All memory will be erased - Go on? will appear. Enter 1 for yes or 0 for no. Initialization
resets the CHEF Mapper system by erasing all memory, including the stored programs.
28