ORP
ANDP
OUT
LDF
ORF
ANDF
OUT
LD
MEP
OUT
OUT
LDP X0
X1
X2
Y0
X3
X4
X5
Y1
X6
Y3
3-3 The LDP, LDF, ANDP, ANDF, ORP, OPF, MEP and MEF Instructions
LDP
(LOAD PULSE)
LDF
(LOAD FALLING PULSE)
ANDP
(AND PULSE)
ANDF
(AND FALLING PULSE)
ORP
(OR PULSE)
ORF
(OR FALLING PULSE)
MEP
MEF
Y2
LD X7
MEF
X0 X2
Y0
Y1
Y2
Y3
X1
X3
X4
X6
X7
X5
82
X, Y, M, S, T, C, D.b, R.b
X, Y, M, S, T, C, D.b, R.b
Mnemonic Devices Function
X, Y, M, S, T, C, D.b, R.b
X, Y, M, S, T, C, D.b, R.b
X, Y, M, S, T, C, D.b, R.b
X, Y, M, S, T, C, D.b, R.b
Initial logical operation Rising edge pulse contact
Parallel connection of Rising edge pulse contact
Serial connection of Rising edge pulse contact
Final logical operation type coil drive
Initial logical operation Falling edge pulse contact
Parallel connection of Falling edge pulse contact
Serial connection of Falling edge pulse contact
Final logical operation type coil drive
Initial logical operation contact type NO (Normally Open)
Conversion of operation result to Rising edge pulse contact
Final logical operation type coil drive
Initial logical operation contact type NO (Normally Open)
Conversion of operation result to Rising edge pulse contact
Final logical operation type coil drive
The right gure takes the bit device M0 as an example
to illustrate the relationship between the initial logical
operation contact type NO, NC, the Raising and Falling
edge pulse contacts.
The Rising edge contact will be active at the program
for one Scan Time when the associated device status
changes from “OFF” to “ON”.
The Falling edge contact will be active at the program
for one Scan Time when the associated device status
changes from “ON” to “OFF”.
The state of M0
The A type NO contact of M0
The B type NC contact of M0
The Raising edge pulse of M0
The Falling edge pulse of M0
One Scan Time One Scan Time
Ladder Diagram
Instruction List
Format
Initial logical operation Rising edge pulse
Initial logical operation Falling edge pulse
Serial connection of Rising edge pulse
Serial connection of Falling edge pulse
Parallel connection of Rising edge pulse
Parallel connection of Falling edge pulse
Conversion of operation result to
Rising edge pulse
Conversion of operation result to
Falling edge pulse
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