Binary Data Modification - Omron CPM2C Operation Manual

Programming Console Operations
!Caution Before changing the contents of I/O memory, be sure that the changes will not
1,2,3...

4-2-23 Binary Data Modification

!Caution Before changing the contents of I/O memory, be sure that the changes will not
1,2,3...
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 the CPU Unit, Expansion Units, or Expansion I/O Units may operate
unexpectedly.
1. Monitor the status of the desired word according to the procedure de-
scribed in 4-2-14 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.
The operation will end and the normal monitoring display will return when
the WRITE Key is pressed.
C A A
WRITE
2 0 0
This operation is used to change the status of a word's bits when the word is
monitored using the procedure described in 4-2-16 Binary Monitor . It is possi-
ble in MONITOR or PROGRAM mode only.
RUN
No OK
Bits SR 25300 to SR 25507 and timer/counter flags cannot be changed.
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 the CPU Unit, Expansion Units, or Expansion I/O Units may operate
unexpectedly.
1. Monitor the status of the desired word according to the procedure de-
scribed 4-2-16 Binary Monitor .
(BInary monitor)
2. Press the CHG Key to begin binary data modification.
A flashing cursor will appear over bit 15. The cursor indicates which bit can
be changed.
3. Three sets of keys are used to move the cursor and change bit status:
a) Use the Up and Down Arrow Keys to move the cursor to the left and
right.
,
'
PRES VAL?
D0000 0119 ????
CHG
D0000
0200
MONITOR PROGRAM
OK
c010 MONTR
1000010101010101
Bit 15
c010
CHG
~000010101010101
Section 4-2
Bit 00
CHG?
179