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V530-R160
Operation Manual
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SECTION 8
Communication with the Host
Ladder Program Example
• Example of ladder program error
If a ladder like the one shown below has been set with the Read Area of the controller set to
I
/
O
, bit-unit output settings are not possible.
Settings at the controller
MOV(021)
#0010
D0100
W0.00
DIFU(013)
W0.00
I:2.00
MOV(021)
#0021
D0100
W0.01
DIFU(013)
W0.01
I:2.01
MOV(021)
#0022
D0100
W0.02
DIFU(013)
W0.02
I:2.02
One shot reading
Changing scenes (+1)
Changing scenes (-1)
Item
Setting
Read area
I/O
Begin read word
0100
Write area
DM
Begin write word
0110
I:2.00
100.04
The read command "0010" will remain
set in the Read Area and reading
will be executed continuously.