Delta DVP-ES2 User Manual
Page 522
D V P - E S 2 / E X 2 / S S 2 / S A2 / S X 2 O p e r a t i o n M a n u a l - P r o g r a m m i n g
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API Mnemonic
Operands
Function
179
D WSUM P
Sum of multiple
devices
Controllers
ES2/EX2 SS2 SA2
SE
SX2
Bit Devices
Word devices
Program Steps
Type
OP
X Y M S K H
KnX
KnY KnM KnS T C D E F
S
*
*
*
n
* *
*
D
*
*
*
WSUM, WSUMP: 7 steps
DWSUM, DWSUMP: 13
steps
PULSE 16-bit 32-bit
ES2/EX2 SS2
SA2
SE
SX2 ES2/EX2 SS2
SA2
SE
SX2 ES2/EX2 SS2
SA2
SE
SX2
Operands:
S: Source device n: Data length to be summed up D: Device for storing the result
Explanations:
1.
WSUM instruction sums up n devices starting from S and store the result in D.
2.
If the specified source devices S are out of valid range, only the devices in valid range will be
processed.
3.
Valid range for n: 1~64. If the specified n value is out of the available range (1~64), PLC will
take the upper (64) or lower (1) bound value as the set value.
Program example:
When X10 = ON, 3 consecutive devices (n = 3) from D0 will be summed up and the result will be
stored in D10
X10
WSUM
D0
D10
K3
D0
D1
D2
D10
K338
K100
K113
K125
(D0+D1+D2)
D10
Result: