Mep, Mef - Mitsubishi Electric FX3G SERIES Programming Manual

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
7.11

MEP, MEF

Outline
MEP and MEF commands are instructions that change the operation results to pulses so that device numbers do not
have to be specified.
1) MEP
The operation results up to the MEP instruction become conductive when the driving contacts turn from OFF to
ON.
The use of MEP instructions simplifies the process of changing driving contacts to pulses when multiple contact
points connect in a series.
2) MEF
The operation results up to the MEF instruction become conductive when the driving contacts turn from ON to
OFF.
The use of MEF instructions simplifies the process of changing driving contacts to pulses when multiple contact
points connect in a series.
1. Instruction format
MEP
MEP
MEF
MEF
2. Applicable devices
Bit Devices
Instruc-
System User
tion
X Y M T C S D .b KnX KnY KnM KnS T C D R U \G
MEP
MEF
Explanation of function and operation
1. MEP instruction (ON during rising edge of driving contacts results)
Circuit Program
X000 X001
2. MEF instruction (ON during falling edge of driving contacts results)
Circuit program
X000 X001
208
Mnemonic
Basic Instruction
−
1 step
MEP
Mnemonic
Basic Instruction
−
1 step
MEF
Digit Specification
List program
0
SET M0 1
2
3
List program
0
1
SET M0
2
3
Operation Condition
Continuous
Operation
Pulse (Single)
Operation
Operation Condition
Continuous
Operation
Pulse (Single)
Operation
Word Devices
Special
System User
Unit
V
There are no applicable devices.
There are no applicable devices.
Timing chart
LD X000
X000
AND X001
MEP
X001
SET M0
M0
Timing chart
LD X000
X000
AND X001
MEF
X001
SET M0
M0
7 Basic Instruction
7.11 MEP, MEF
Others
Con- Real Charac-
Index
stant Number ter String
Z Modify K H E " "
OFF
ON
OFF
ON
OFF ON
OFF OFF
ON
OFF ON OFF
OFF
ON
Pointer
P