Pulse Operation Start, Pulse Series Connection, Pulse Parallel Connection; Ldp,Ldf,Andp,Andf,Orp,Orf - Mitsubishi MELSEC Q Series Programming Manual

5.1.2
Pulse operation start, pulse series connection, pulse parallel
connection (LDP,LDF,ANDP,ANDF,ORP,ORF)

LDP,LDF,ANDP,ANDF,ORP,ORF

LDP
LDF
ANDP
ANDF
ORP
ORF
Setting
Data
S
Function
LDP, LDF
(1) LDP is the leading edge pulse operation start instruction, and is ON only at the leading edge
of the designated bit device (when it goes from OFF to ON). If a word device has been
designated, it is ON only when the designated bit changes from 0 to 1.
In cases where there is only an LDP instruction, it acts identically to instructions for the
creation of a pulse that are executed during ON(
Ladder using an LDP instruction
X0
X0
Bit device number /
X1/D0.1
X1/D0.1
X2/D0.2
X2/D0.2
X3/D0.3
X3/D0.3
: Devices used as contacts (bits)
S
Internal Devices
R, ZR
Bit Word
K0
MOV D0
M0
LDP,LDF,ANDP,ANDF,ORP,ORF
High
Basic
performance
Word device bit designation
J \
U \G
Bit Word
P).
Ladder not using an LDP instruction
X0
K0
MOVP D0
X0
PLS M0
Process
Redundant Universal LCPU
( )
S
Other
Zn Constants
DX
––
5-5
1
2
3
4
5
6
7
8