Mitsubishi Electric MELSEC FX Series Structured Programming Manual page 250

FXCPU Structured Programming Manual
(Basic & Applied Instruction)
3. Operation result of the device specified by
16-bit operation)
b15 b14 b13 b12 b11 b10
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
1 1 1
1 1 1
1 1 1
1 1 1
1 1 1
Cautions
1) When handling 32-bit data in a structured program, a 16-bit device cannot be specified directly as in the
case of a simple project. Use a label to handle 32-bit data.
A 32-bit counter can be specified directly as it is a 32-bit long device.
Use a global label to specify a device.
2) While the command input is OFF, the instruction is not executed. The output of the number of bits in the
ON status is latched in the previous status.
3) Some restrictions to applicable devices
1:The FX
2:The FX
Program examples
When X000 is ON, the number of bits in the ON status in D0 is counted, and stored to D2.
[Structured ladder]
X000
D0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 1 0 1 0 1 0 1 0 1 0 1 0 1 1 1
248
Bit device
b9 b8 b7
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
1 1 1 1 1 1
1 1 1 1 1 1
1 1 1 1 1 1
1 1 1 1 1 1
1 1 1 1 1 1
, FX and FX PLCs only are applicable.
3U 3UC 3G
and FX PLCs only are applicable.
3U 3UC
SUM
EN ENO
The number of "1" in D0 is stored to D2.
s d
D2
D 0 = K0
D 0 = K21847
according to the value specified by
b6 b5 b4 b3 b2 b1
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 1
0 0 0 0 0 1
0 0 0 0 1 0
0 0 0 0 1 0
0 0 0 0 1 1
0 0 0 0 1 1
0 0 0 1 0 0
0 0 0 1 0 0
0 0 0 1 0 1
0 0 0 1 0 1
1 1 1 1 0 1
1 1 1 1 1 0
1 1 1 1 1 0
1 1 1 1 1 1
1 1 1 1 1 1
[ ST ]
SUM_2(X000, D0, D2);
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
M8020=ON Zero flag
0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1
M8020=OFF Zero flag
7 Applied Instructions
7.5 Data Operation
Word device
b0 Decimal Hexadecimal
0 0 0000
1 1 0001
0 2 0002
1 3 0003
0 4 0004
1 5 0005
0 6 0006
1 7 0007
0 8 0008
1 9 0009
0 10 000A
1 11 000B
1 -5 FFFB
0 -4 FFFC
1 -3 FFFD
0 -2 FFFE
1 -1 FFFF
D 2 = K0
D 2 = K9
32 16 8 4 2 1
(in
M8020
Zero flag
0 ON
1 OFF
1 OFF
2 OFF
1 OFF
2 OFF
2 OFF
3 OFF
1 OFF
2 OFF
2 OFF
3 OFF
OFF
15 OFF
14 OFF
15 OFF
15 OFF
16 OFF