Mitsubishi FX1S Series User Manual

FX Series Programmable Controllers Basic Program Instructions 2
2-22
2.19 No Operation
Basic points to remember:
- Writing NOP instructions in the middle of a program minimizes step number changes
when changing or editing a program.
- It is possible to change the operation of a circuit by replacing programmed instructions
with NOP instructions.
- Changing a LD, LDI, ANB or an ORB instruction with a NOP instruction will change the
circuit considerably; quite possibly resulting in an error being generated.
- After the program ‘all clear operation’ is executed, all of the instructions currently in the
program are over written with NOPs.
Mnemonic Function Format Devices Program steps
NOP
(No Operation)
No operation or
null step
N/A N/A 1
FX1S
FX1N FX2N
FX2NC

Mitsubishi FX1S Series Specifications

General

Model	FX1S Series
I/O Points	10 to 30 points
Program Memory	2000 steps
Power Supply	AC
Communication	RS-422
Expansion	No expansion
Programming Language	Ladder Logic
Input Voltage	100-240V AC
Built-in High-Speed Counter	Up to 60 kHz (single-phase)
Weight	Approx. 0.3 kg
Dimensions	90 x 60 x 75 mm