OPERATION MANUAL

NE1S Series Features Section 1-1
1-1-2 Advantages
Standardized Programs
Internationally
Standardized
Programming
Supports True Variable
Programming
Supports Different Data
Type Declarations for
Each Variable
True Network-level
Programming with the
Network Path Function
and Variable Function
Modularize Program
Processes into Userdefined
Function Blocks
Automatic Allocation of
I/O Memory to Variables
Open network standardization:
The CIP (Common Industrial Protocol) provides transparency across networks.
Open interface standardization:
An Ethernet port and USB port are built into the CPU Unit as a standard
feature.
Integrated development environment:
The Programming Device and Network Configurator are integrated in a
single software package.
Programs can be created that conform to the IEC 61131-3 standard.
Programs and function blocks are supported as logical POUs (Program Organization
Units). Either LD (ladder/mnemonic language) or ST (structured text)
programming can be used in these logical POUs (programs or functions).
Software created in this way is reusable in other systems so it provides true
software standardization.
After variables are declared in the variable table, those declared variables can
be used in the program, providing true variable programming just like other
high-level languages. Programs can be designed in the same way with the
three kinds of variables (local program-level variables, function block-level
variables, and PLC-level variables).
By using variables, programs can be written before physical addresses are
assigned, making it easier to reuse programs and make programs modular.
The data type can be declared for each variable. Using variables makes programs
easier to read and can be reused without data inconsistencies.
When another CPU Unit in the network is specified in an NE1S-series CPU
Unit, the path to the other CPU Unit can be specified without setting routing
tables. This network path function allows the address of another NE1S-series
CPU Unit in the network to be specified as a variable with a network path.
The variable function in the NE1S-series CPU Unit that received the variable
can determine the physical address from the variable name. These functions
provide true variable programming on a network level.
User-defined function blocks can be created. A series of complex processes
can be combined in a single block, making it easy to reuse programming
resources and experience. It is even possible to almost eliminate programming
from the user standpoint.
Variables can be broadly divided into two categories: global variables that are
shared within a PLC and local variables that are unique to a program or function
block.
Physical memory addresses can be allocated to both global variables and
local variables automatically with NE Programmer. The automatic allocation of
I/O memory allows variables to be used in programming without dealing
directly with the variables' addresses.
While it isn't necessary to deal with the variables' addresses, the user can
manually specify the physical addresses of global variables if necessary.
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