3. Instruction Set
3-81
API Mnemonic Operands Function
24
D INC P
Increment
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
D
* * * * * ***
INC, INCP: 3 steps
DINC, DINCP: 5 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:
D: Destination device
Explanations:
1. If the instruction is not used in pulse execution mode, the content in the designated device D
will plus “1” in every scan period
2. When INC is executed, the content in D will be incremented. However, in 16-bit instruction, if
+32,767 is reached and “1” is added, it will write a value of –32,768 to the destination. In
32-bit instruction, if +2,147,483,647 is reached and “1” is added, it will write a value of
-2,147,483,648 to the destination.
3. This instruction is generally used in pulse execution mode (INCP, DINCP).
4. If operand D uses index F, only a 16-bit instruction is applicable..
5. The operation results will not affect M1020 ~ M1022.
Program Example:
When X0 is triggered, the content of D0 will be incremented by 1.
X0
INCP
D0
