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Programming Console Operations Section 7-3
Partial Clear It is possible to retain the data in specified areas or part of the Program Mem-
ory. 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 spec-
ify the DM Area, and the Shift and DM Keys are used to specify the EM Area
(see next procedure).
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.
As an example, follow the procedure below to retain the timer/counter area
and Program Memory addresses 000 through 122. Refer to the next proce-
dure in this section to change the specification for the EM Area.
1,2,3... 1. Press the CLR Key to 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. (Counter PVs will not be cleared.)
Note The EM area will be displayed for the CQM1H-CPU61 only.
4. Press 123 to specify 123 as the starting program address.
5. Press the MONTR Key to clear the specified regions of memory.
EM Area Specification It is possible to retain or clear the data in the EM Area just as it is for the other
areas, but the procedure is slightly different. The following procedure shows
how to change the specification. This specification is used as part of the
above procedure, Partial Clear.
The SHIFT and DM Keys are used to specify the EM Area.
Note The EM area will be displayed for the CQM1H-CPU61 only.
1,2,3... 1. Press the CLR Key to bring up the initial display.
2. Press the SET, NOT, and then the RESET Key to begin the operation.
3. Press the SHIFT and EM/DM Keys to access the following display. The
bank number will be displayed on the bottom line. If the clear operation is
performed with the bank number displayed, the EM Area will be cleared.
4. To clear the bank number so that the EM Area will not be cleared, press
the 0 Key. The bank number will disappear.
5. Press the SHIFT and EM/DM Keys to return to the previous memory clear
display and complete the operation as described above in Partial Clear.
Note 1. The Up and Down Keys can be used to switch between the displays in-
stead of the SHIFT and EM/DM Keys.
CNT
MEMORY CLR?
HR DM EM~
B
1
C
2
D
3
123MEMORY CLR?
HR DM EM~
SET
NOT
RESET
MEMORY CLR?
HR CNT DM EM~
SHIFT
DM
EM
EM CLR ?
0
A
0
EM CLR ?