Pulse Not Operation Start, Pulse Not Series Connection, Pulse Not Parallel Connection - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

Pulse NOT operation start, pulse NOT series connection, pulse
NOT parallel connection
LDPI, LDFI, ANDPI, ANDFI, ORPI, ORFI
RnPCPU RnPCPU
RnCPU RnENCPU
(Process) (Redundant)
• LDPI: Rising edge pulse NOT operation start
This instruction turns on when the specified device is off, on, or at the falling edge (on to off).
• LDFI: Falling edge pulse NOT operation start
This instruction turns on when the specified bit device is at the rising edge (off to on), off, or on.
• ANDPI: Rising edge pulse NOT series connection, ANDFI: Falling edge pulse NOT series connection
These instructions perform an AND operation with the previous operation result.
• ORPI: Rising edge pulse NOT parallel connection, ORFI: Falling edge pulse NOT parallel connection
These instructions perform an OR operation with the previous operation result.
Ladder
(s)
LDPI
(s)
LDFI
(s)
ANDPI
(s)
ANDFI
ORPI
(s)
(s)
ORFI
FBD/LD
EN ENO
s
■Execution condition
Instruction
LDPI
LDFI
ANDPI
ANDFI
ORPI
ORFI
RnSFCPU RnSFCPU
(Standard) (Safety)
Execution condition
Every scan
ST
ENO:=LDPI(EN,s);
ENO:=LDFI(EN,s);
ENO:=ANDPI(EN,s);
ENO:=ANDFI(EN,s);
ENO:=ORPI(EN,s);
ENO:=ORFI(EN,s);
5 SEQUENCE INSTRUCTIONS
165
5.1 Contact Instructions
5