Simple I/O Monitor; Monitoring Specified Addresses In I/O Memory - Omron CJ - 10-2005 Manual

Simple I/O Monitor

5-2

Simple I/O Monitor

5-2-1

Monitoring Specified Addresses in I/O Memory

Monitoring ON/OFF Status of Specified Bits (Single-bit Data)
Key Sequence
3. Press the CLR Key to end the operation.
Note When the MON Key is pressed during I/O bit status monitoring, the
Programming Console will be switched to the Simple I/O Monitor op-
eration. To switch back to the I/O Bit Status Monitor operation, press
the CLR Key once more.
RUN
OK
This operation is used to monitor present values in I/O memory one bit or one
word at a time.
• There are two methods for I/O monitoring, as follows:
a) Monitoring specified addresses in I/O memory.
b) Specifying program addresses and monitoring the operands of the
corresponding instructions.
• Simple I/O Monitor is available in RUN, MONITOR and PROGRAM
modes.
• When monitoring bit status, the ON/OFF status of the bit can be changed.
Refer to 5-6 Forcing Bits ON/OFF for details.
• When monitoring word data (16-bit data), the contents of the word can be
changed. Refer to 5-5 Changing Word (16-bit) Present Values for details.
CONT
Specify area
SHIFT
#
Specify program address
000124 CT00
↓
AND N
When normally closed bits are ON,
the I/O status is still displayed as " 1."
000125 CT00
↓
OUT
000126 CT00
↓
TIM
000126 TIM
↓
SV
000127 CT00
↓
LD
MONITOR
OK OK
Bit address
↓
Section 5-2
1
000001
0
000100
0
0000
#0010
0
T0000
PROGRAM
↓
MON
(To monitor previous/next
bit address)
CLR
↑
81