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Pulse operation start, pulse series connection, pulse parallel
connection
LDP, LDF, ANDP, ANDF, ORP, ORF
• LDP: Rising edge pulse operation start instruction
This becomes conductive (ON) only at the rising edge (OFF to ON) of the bit device specified by (s).
• LDF: Falling edge pulse operation start instruction
This becomes conductive (ON) only at the falling edge (ON to OFF) of the bit device specified by (s).
• ANDP: Rising edge pulse series connection instruction/ANDF: Falling edge pulse series connection instruction
This instruction ANDs the bit device specified by (s) with the operation result so far, and uses the result as the operation
result.
• ORP: Rising edge pulse parallel connection/ORF: Falling edge pulse parallel connection
This instruction ORs the bit device specified by (s) with the operation result so far, and uses the result as the operation result.
Ladder diagram
(s)
LDP
(s)
LDF
ANDP
ANDF
ORP
(s)
(s)
ORF
Setting data
■Descriptions, ranges, and data types
Operand
Remarks
(s)
Device used as contact
■Applicable devices
Operand
Bit
X, Y, M, L,
SM, F, B, SB
(s)
*1 T, ST, C cannot be used.
5 SEQUENCE INSTRUCTIONS
100
5.1 Contact Instructions
(s)
(s)
Word
U\G T, ST,
T, ST, C, D,
C, LC
W, SD, SW, R
*1
Structured text
ENO:=LDP(EN,s);
ENO:=LDF(EN,s);
ENO:=ANDP(EN,s);
ENO:=ANDF(EN,s);
ENO:=ORP(EN,s);
ENO:=ORF(EN,s);
Range
Double word Indirect
U\G
Z
LC
LZ
Data type
Data type (label)
Bit
ANY_BOOL
Constant
specification
K, H
E
$
Others
(DX)
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