Mitsubishi MELSEC-Q/L User Manual

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DINC, DINCP, DDEC, DDECP
DDEC
(1) Subtracts -1 from the device designated by (32-bit data).
(2) When DDEC/DDECP operation is executed for the device designated by , whose content is 0, the value -1 is stored at
the device designated by .
Operation Error
(1) There is no operation error in the DINC(P) or DDEC(P) instruction.
Program Example
(1) The following program adds 1 to the data at D0 and D1 when X0 is ON.
[Ladder Mode] [List Mode]
(2) The following program adds 1 to the data set at X10 to X27 when X0 goes ON, and stores the result at D3 and D4.
[Ladder Mode] [List Mode]
(3) The following program subtracts 1 from the data at D0 and D1 when X0 goes ON.
[Ladder Mode] [List Mode]
(4) The following program subtracts 1 from the data set at X10 to X27 when X0 goes ON, and stores the result at D3 and D4.
[Ladder Mode] [List Mode]
D
b0b16 b15
+1
73500 (BIN)
b31
73499 (BIN)
1
D
D
+1
D
D
b0b16 b15b31
D
D
Step
Instruction
Device
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Instruction
Device
Step
Instruction
Device
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Instruction
Device

Mitsubishi MELSEC-Q/L Specifications

General

Brand	Mitsubishi
Model	MELSEC-Q/L
Category	Controller
Language	English