Decrementing 32-bit binary data
DDEC(P)(_U)
RnPCPU
RnCPU RnENCPU
(Process)
These instructions decrement the specified 32-bit binary data by one.
Ladder
(d)
FBD/LD
EN
ENO
d
■Execution condition
Instruction
DDEC
DDEC_U
DDECP
DDECP_U
Setting data
■Description, range, data type
Operand
(d)
DDEC(P)
DDEC(P)_U
EN
ENO
• In safety programs executed by the Safety CPU, only safety devices and safety labels of data types described in the table
can be used.
■Applicable devices
Operand
Bit
X, Y, M, L,
SM, F, B, SB,
FX, FY
(d)
• In safety programs executed by the Safety CPU, only the following safety devices and constants can be used.
Operand
Bit
SA\X, SA\Y, SA\M, SA\SM, SA\B
(d)
6 BASIC INSTRUCTIONS
298
6.2 Arithmetic Operation Instructions
RnPCPU
RnSFCPU RnSFCPU
(Redundant)
(Standard)
(Safety)
Execution condition
Description
Decrement target start device
Execution condition
Execution result
Word
J\
T, ST, C, D, W,
SD, SW, FD, R,
ZR, RD
ST
ENO:=DDEC(EN,d);
ENO:=DDECP(EN,d);
Range
-2147483648 to 2147483647
0 to 4294967295
Double word Indirect
U\G, J\,
Z
LT, LST,
U3E\(H)G
LC
Word
SA\T, SA\ST, SA\C, SA\D, SA\W, SA\SD
ENO:=DDEC_U(EN,d);
ENO:=DDECP_U(EN,d);
Data type
Data type (label)
32-bit signed binary
ANY32_S
32-bit unsigned binary
ANY32_U
Bit
BOOL
Bit
BOOL
Constant
specification
LZ
K, H E
Constant
K, H
Others
$