Pulse Not Operation Start, Pulse Not Series Connection, Pulse Not Parallel Connection (Ldpi,Ldfi,Andpi,Andfi,Orpi,Orfi) - Mitsubishi MELSEC Q Series Programming Manual

5.1.3
Pulse NOT operation start, pulse NOT series connection,
pulse NOT parallel connection
(LDPI,LDFI,ANDPI,ANDFI,ORPI,ORFI)
LDPI,LDFI,ANDPI,ANDFI,ORPI,ORFI
LDPI LDPI
LDFI LDFI
ANDPI ANDPI
ANDFI ANDFI
ORPI ORPI
ORFI ORFI
Setting
Data
S
Function
LDPI, LDFI
(1) LDPI is the leading edge pulse NOT operation start instruction that is on only at the leading
edge of the specified bit device (when the bit device goes from on to off) or when the bit
device is on or off. If a word device has been specified, LDPI is on only when the specified
bit is 0, 1, or changes from 1 to 0.
Bit device number / Bit device number /
X1/D0.1 X1/D0.1
X1/D0.1 X1/D0.1
X2/D0.2 X2/D0.2
X2/D0.2 X2/D0.2
X3/D0.3 X3/D0.3
X3/D0.3 X3/D0.3
: Devices used as contacts (bits)
S
Internal Devices
R, ZR
Bit Word
LDPI,LDFI,ANDPI,ANDFI,ORPI,ORFI
High
Basic
performance
• QnU(D)(H)CPU: The serial number (first five digits) is "10102" or later.
• QnUDE(H)CPU: The serial number (first five digits) is "10102" or later.
Word device bit designation Word device bit designation
J \
U \G
Bit Word
Ver.
Process
Redundant
Universal LCPU
S S
( ( ) )
Other
Zn Constants
DX
––
5-7
1
2
3
4
5
6
7
8