Delta C2000 Series User Manual page 825

Chapter 16 PLC Function ApplicationsC2000
API
ADD
20
D
Bit device
X Y M
S1
S2
D
Notes on operand usage: none

Using two data sources: The result of adding

method will be stored in
The highest bit of any data is symbolized as bit 0 indicating (positive) 1 indicating

(negative), enabling the use of algebraic addition operations. (for instance:
3+(-9)=-6)
Flag changes connected with the addition.

16-bit BIN addition: When X0=On, the result of the content of addend D0 plus the

content of augend D10 will exist in the content of D20.
Relationship between flag actions and negative/positive numbers:

S1 S2 D
P
Word device
K H KnX KnY KnM
* * * * *
* * * * *
* *
S1 S2
: Augend. : Addend.
1. When calculation results are 0, the zero flag M1020 will be On.
2. When calculation results are less than –32,768, the borrow flag M1021 will be
On.
3. When calculation results are greater than 32,767, the carry flag M1022 will be
On.
X0
ADD
BIN addition
16-bit command (7 STEP)
ADD
T C D
execution type
* * *
* * *
32-bit command (13 STEP)
* * *
DADD
execution type
Flag signal: M1020 Zero flag
Please refer to the following
supplementary explanation
D
: Sum.
D
.
D0 D10
D20
16-64
Continuous ADDP
execution type
Continuous DADDP
execution type
M1021 Borrow flag
M1022 Carry flag
S1 S2
and using the BIN
Pulse
Pulse