Binary Data Modification - Omron CPM1A Operation Manual

Programming Console Operations
Caution
!
1, 2, 3...

4-3-22 Binary Data Modification

! Caution
1, 2, 3...
108
Words SR 253 to SR 255 cannot be changed.
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 the CPU Unit or Expansion I/O Units may operate unexpectedly.
1. Monitor the status of the desired word according to the procedure described
in 4-3-13 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
2 0 0 WRITE
This operation is used to change the status of a word's bits when the word is
monitored using the procedure described in 4-3-15 Binary Monitor. It is pos-
sible in MONITOR or PROGRAM mode only.
RUN MONITOR
No OK
Bits SR 25300 to SR 25507 and timer/counter flags cannot be changed.
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 the CPU Unit or Expansion I/O Units may operate unexpectedly.
1. Monitor the status of the desired word according to the procedure described
4-3-15 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.
↓
CHG
PROGRAM
OK
Bit 15
CHG
~
↓
~
Section 4-3
Bit 00