!
3-6
Section
Programming Console Operations
87
3-6-2 Clearing Memory
This operation is used to clear all or part of the Program Memory and any data
areas that are not read-only, as well as the contents of the Programming Con-
sole’s memory. This operation is possible in PROGRAM mode only.
RUN
MONITOR
PROGRAM
No
No
OK
Before beginning to program for the first time or when installing a new program,
clear all areas.
The following procedure is used to clear memory completely.
1, 2, 3...
1. Bring up the initial display by pressing the CLR key repeatedly.
2. Press the SET, NOT, and then the RESET Key to begin the operation.
SET
NOT
RESET
00000 MEM CLR ?
HR CNT DM
3. Press the MONTR Key to clear memory completely.
MONTR
00000 MEM CLR
END HR CNT DM
Partial Clear
It is possible to retain the data in specified areas or part of the Program Memory.
To retain the data in the HR, TC, or DM Areas, press the appropriate key after
pressing SET, NOT, and RESET. Any data area that still appears on the display
will be cleared when the MONTR Key is pressed.
The HR Key is used to specify both the AR and HR Areas, the CNT Key is used to
specify the entire timer/counter area, and the DM Key is used to specify the DM
Area.
Caution
The PC Setup (DM 6600 through DM 6655) will be cleared along with the rest of
the DM area if the DM area is specified for clearing. The error log, however, will
not be cleared.
It is also possible to retain a portion of the Program Memory from the first
memory address to a specified address. After designating the data areas to
be retained, specify the first Program Memory address to be cleared. For
example, input 030 to leave addresses 000 to 029 untouched, but to clear
addresses from 030 to the end of Program Memory.
Example
As an example, follow the procedure below to retain the timer/counter area and
Program Memory addresses 000 through 122:
1, 2, 3...
1. Bring up the initial display.
2. Press the SET, NOT, and then the RESET Key to begin the operation.
3. Press the CNT Key to remove the timer/counter area from the data areas
shown on the display.
CNT
00000 MEM CLR ?
HR DM
4. Press 123 to specify 123 as the starting program address.
B
1
C
2
D
3
00123 MEM CLR ?
HR DM
5. Press the MONTR Key to clear the specified regions of memory.
MONTR
00000 MEM CLR
END HR DM
All Clear