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2 Instruction List
2.1 Basic Instructions
28
FXCPU Structured Programming Manual
[Basic & Applied Instruction]
2. Instruction List
This chapter introduces a list of instructions available in programming.
2.1 Basic Instructions
*1. The instruction is provided in the FX3U and FX3UC PLCs Ver. 2.30 or later.
Instruction name Function
Applicable PLCs
Reference
FX3U(C)
FX3G(C)
FX3S
FX2N(C)
FX1N(C)
FX1S
FXU/FX2C
FX0N
FX0(S)
LD
Initial logical operation contact type NO
(normally open)
333333333Section 5.1
LDI
Initial logical operation contact type NC
(normally closed)
AND Serial connection of NO contacts
ANI Serial connection of NC contacts
OR Parallel connection of NO contacts
ORI Parallel connection of NC contacts
LDP Initial logical operation of rising edge pulse
333333 Section 5.2
LDF Initial logical operation of falling edge pulse
ANDP Serial connection of rising edge pulse
ANDF Serial connection of falling edge pulse
ORP Parallel connection of rising edge pulse
ORF Parallel connection of falling edge pulse
OUT Coil drive 333333333Section 5.3
OUT_T Timer drive 333333333Section 5.4.1
OUT_C
Counter drive 333333333Section 5.5.1
OUT_C_32
AND(
···)
Serial connection of circuit block
333333333Section 5.6
OR(
···)
Parallel connection of circuit block
MPS Stack pushdown
333333333Section 5.7MRD Stack read
MPP Stack popup
INV
Invert the current result of the internal PLC
operations
333333 Section 5.8
MEP
Conversion of operation result to leading edge
pulse
*1 33 Section 5.9
MEF
Conversion of operation result to trailing edge
pulse
SET Set bit device latch ON
333333333Section 5.10
RST
Reset bit device OFF and clear current value and
resister
PLS Rising edge pulse differential output
333333333Section 5.11
PLF Falling edge pulse differential output
MC Connection to common contact
333333333Section 5.12
MCR Clear connection to common contact
END Program END, I/O refresh and return to step 0 333333333Section 5.13
NOP No operation or null step Section 5.14