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Programming Console Operations Section 7-3
Incrementing and
Decrementing a Constant
This operation can be used to increment and decrement an SV constant. It is
possible only when the SV has been entered as a constant.
1,2,3... 1. Press the CLR Key to bring up the initial display.
2. Display the desired timer or counter.
3. Press the Down Arrow, CHG, and then the EXT Key.
The constant on the left is the old SV and the constant on the right will be-
come the new SV constant in step 5.
4. Press the Up and Down Arrow Keys to decrement and increment the con-
stant on the right. (In this case the SV is decremented once.)
5. Press the CLR Key twice to change the timer’s SV to the new value.
7-3-19 Hexadecimal, BCD Data Modification
This operation is used to change the contents of memory area words (includ-
ing timer/counter present values). It is possible in MONITOR or PROGRAM
mode only.
Words SR 253 to SR 255 cannot be changed.
!Caution Before changing the contents of I/O memory, be sure that the changes will not
cause equipment to operate unexpectedly or dangerously. In particular, take
care when changing the status of output bits. The PC continues to refresh I/O
bits even if the PC is in PROGRAM mode, so devices connected to output
points on Output Units may operate unexpectedly.
1,2,3... 1. Monitor the status of the desired word according to the procedure de-
scribed in 7-3-12 Bit, Digit, Word Monitor. If two or more words are being
monitored, the desired word should be leftmost on the display.
(Word monitor)
2. Press the CHG Key to begin hexadecimal, BCD data modification.
3. Input the new PV and press the WRITE Key to change the PV.
TIM
SRCH
201SRCH
TIM 000
↓
CHG
EXT
201DATA ? U/D
T000 #0123 #0123
↑
201DATA ? U/D
T000 #0123 #0122
CLR CLR
201 TIM DATA
#0122
RUN MONITOR PROGRAM
No OK OK
,
'
CHG
PRES VAL?
D0000 0119 ????
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