Mitsubishi Electric MELSEC iQ-R Series - Pulse Operation Start, Pulse Series Connection, Pulse Parallel Connection

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5 SEQUENCE INSTRUCTIONS
5.1 Contact Instructions
Pulse operation start, pulse series connection, pulse parallel
connection
LDP, LDF, ANDP, ANDF, ORP, ORF
• LDP: Rising edge pulse operation start
This instruction turns on only at the rising edge (off to on) of the specified bit device.
• LDF: Falling edge pulse operation start
This instruction turns on only at the falling edge (on to off) of the specified bit device.
• ANDP: Rising edge pulse series connection, ANDF: Falling edge pulse series connection
These instructions perform an AND operation with the previous operation result.
• ORP: Rising edge pulse parallel connection, ORF: Falling edge pulse parallel connection
These instructions perform an OR operation with the previous operation result.
■Execution condition
Ladder ST
ENO:=LDP(EN,s);
ENO:=LDF(EN,s);
ENO:=ANDP(EN,s);
ENO:=ANDF(EN,s);
ENO:=ORP(EN,s);
ENO:=ORF(EN,s);
FBD/LD
Instruction Execution condition
LDP
LDF
ANDP
ANDF
ORP
ORF
Every scan
RnCPU
RnENCPU
RnSFCPU RnSFCPURnPCPURnPCPU
(Standard) (Safety)
(Redundant) (Process)
(s)
(s)
(s)
(s)
(s)
(s)
LDP
LDF
ANDP
ANDF
ORP
ORF
EN ENO
s