Mitsubishi MELSEC-A Series Programming Manual page 246

7. APPLICATION INSTRUCTIONS
Execution Conditions
Operation command
Program Examples
OFF
P
SUM
Program which obtains the number of bits, which are on (1), in the data of X30 to 3F
when X8 turns on.
X008
P
SUM
0
Counted data
DSUM
Program which stores the number of bits, which are on (1), in the data of X20 to 5B,
to D18 when XB turns on.
X00B
0
MOV
+
• Coding
0 LD
1 DSUMP K8X020
4 MOVP
9 DSUMP K7X040
12 +P
17 END
ON
Executed
per scan
Executed
only once
• Coding
K4
X030
Total number of 1s is stored into A0.
P K8
Searching the data of X20 to 3F, the number of bits
DSUM X020
which are "on" is stored into A0.
P
A0 D18
Data of A0 is stored into D18.
P K7
Searching the data of X40 to 5B, the number of bits
DSUM X040
which are "on" is stored into A0.
P
Data of A0 and that of D18 are added and stored into
A0 D18
D18.
X00B
A0 D18
A0 D18
7 − 44
MELSEC-A
Executed
per scan
Executed
only once
0 LD X008
1 SUMP K4X030
4 END