Mitsubishi Electric M800VW Series Programming Manual page 320

M800V/M80V Series PLC Programming Manual (1/2)
8 Function Instructions
8.9 Data Processing Instructions
 Operation errors
 There are no arithmetic errors associated with the SUM(P) or DSUM(P) instructions.
 Program example
 The following program stores the number of bits from X8 to X17 which are ON when X10 is ON at D0.
X10
0
5
x17
0 0 1 0 1 0 1 1 0 0 0 0 0 1 1 1
D0
 The following program stores the number of bits from D100 and D101 which are ON when X10 is ON at D0.
X10
0
5
b31 b28b27
1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 0 1 0 0 0 0 1 1 1 1 0 0 0 0
D100,D101
[Ladder mode]
SUM K4X8 D0
END
x8
Stores the total number of bits at 1 in D0.
7
[Ladder mode]
DSUMP D100 D0
END
b24b23 b20b19 b16b15 b12b11
Stores the total number of bits at 1 in D0.
15
D1,D0
Steps
0
1
5
Steps
0
1
5
b8 b7 b4 b3 b0
299
[List mode]
Inst. Device
LD X10
SUM K4X8
D0
END
[List mode]
Inst. Device
LD X10
DSUMP D100
D0
END
IB-1501667-B