Справочник Пользователя для Mitsubishi Electronics MELSEC -Q/L
5 SEQUENCE INSTRUCTIONS
5.1 Contact Instructions
137
5
Pulse NOT operation start, pulse NOT series connection, pulse
NOT parallel connection
NOT parallel connection
LDPI, LDFI, ANDPI, ANDFI, ORPI, ORFI
Processing details
■LDPI, LDFI
• 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.
only when the specified bit is 0, 1, or changes from 1 to 0.
• LDFI is the trailing edge pulse NOT operation start instruction that is on only at the trailing edge of the specified bit device
(when the bit device goes from off to on) 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 0 to 1.
only when the specified bit is 0, 1, or changes from 0 to 1.
• QnU(D)(H)CPU, QnUDE(H)CPU: the serial number (first five digits) is "10102" or later
• Q00UJCPU, Q00UCPU, Q01UCPU, QnUDVCPU: Supported
• Q00UJCPU, Q00UCPU, Q01UCPU, QnUDVCPU: Supported
(S): Devices used as contacts (bits)
Setting
data
data
Internal device
R, ZR
J\
U\G
Zn
Constant
Others
DX
DX
Bit
Word
Bit
Word
(S)
Device specified in LDPI or LDFI
LDPI state
LDFI state
Bit device
Word device bit designation
OFF to ON
0 to 1
OFF
ON
OFF
0
ON
ON
ON
1
ON
ON
ON to OFF
1 to 0
ON
OFF
Basic
High
performance
Process
Redundant
Universal
LCPU
Ver.
X1/D0.1
X1/D0.1
X2/D0.2
X2/D0.2
X3/D0.3
X3/D0.3
LDPI
LDFI
ORPI
ANDPI
ANDFI
ORFI
Bit device number /
Word device bit designation
( )
S