Binary Data Modification - Omron CPM2C-S100C Operation Manual

Programming Console Operations

8-2-23 Binary Data Modification

!Caution Before changing the contents of I/O memory, be sure that the changes will not
1,2,3...
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 8-2-16 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 8-2-16 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.
↓
b) Use the 1 and 0 Keys to change a bit's status to on or off. The cursor
will move one bit to the right after one of these keys is pressed.
B
c) Use the SHIFT+SET and SHIFT+RESET Keys to force-set or force-re-
set a bit's status. The cursor will move one bit to the right after one of
these keys is pressed. The NOT Key will clear force-set or force-reset
status.
Note Bits in the DM Area cannot be force-set or force-reset.
,
MONITOR PROGRAM
OK
c010 MONTR
1000010101010101
Bit 15
c010 CHG?
1000010101010101
CHG
c010 CHG?
1000010101010101
↓
c010 CHG?
1010010101010101
1
Section 8-2
Bit 00
187