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NJ/NX Series Technical Documents

A list of technical documents for learning the OMRON NJ/NX series. They explain IEC 61131-3 based programming techniques such as POUs, tasks, variables, ST, function blocks and libraries.

Basics

List

OMRON Doc

NX series documents POU

POUs and Tasks

A POU is a unit of program assigned to a task

OMRON Doc

NX series documents variables

Variables

Types and how to choose them

OMRON Doc

NX series documents constants and literals

Constants and Literals

How to write fixed values (literals), etc.

OMRON Doc

NX series documents naming rules

Naming Rules

Rules for deciding variable names

Programming

List

OMRON Doc

NX series documents functions/function blocks

Functions and Function Blocks

Make components for fixed processing or for things done in multiple places

OMRON Doc

NX series documents namespaces

Namespaces

OMRON Doc

NX series documents ST (Structured Text)

ST Language (Structured Text)

Lets function blocks be used even if their names overlap

OMRON Doc

NX series documents custom Fun and FB

Custom Fun and FB

OMRON Doc

NX series documents libraries

Libraries

Turn related functions and function blocks into a library

Migration Guides

List

OMRON Doc

OMRON CJ-NJ instruction replacement guide

CJ to NJ Instruction Replacement Guide

A guide to replacing CJ instructions with NJ instructions

OMRON Doc

Differences Between CJ2M and CJ3M

Differences Between CJ2M and CJ3M

Specification differences between the CJ2M and CJ3M CPU units

OMRON Doc

NS-V2 vs NS-B

NS-V2 vs NS-B

Specification differences between NS-V2 and NS-B