Omron NX Series Hardware User Manual

Terminology
Terminology Description
AT One of the attributes of a variable.
This attribute allows the user to specify what is assigned to a variable. An I/O
port or an address in memory used for CJ-series Units can be specified.
CJ-series Unit Any of the CJ-series Units that can be used with an NJ-series Controller.
memory used for CJ-series Units One type of I/O memory that contains addresses to which variables can be as-
signed, for example, when accessing a CJ-series Unit or CJ-series network. It
can be accessed only with variables with an A
T attribute.
CPU Unit The Unit that serves as the center of control for a Machine Automation Control-
ler. The CPU Unit executes tasks, refreshes I/O for other Units and slaves, etc.
The NJ/NX-series CPU Units include the NX701-££££, NX102-
££££,
NX1P2-££££, NJ501-££££.
EtherCAT Master Function Module One of the function modules. This function module controls the EtherCAT slaves
as the EtherCA
T master
.
EtherNet/IP Function Module One of the function modules. This function module controls the built-in
EtherNet/IP port.
FB An acronym for "function block."
FUN An abbreviation for "function."
I/O port A logical interface that is used by the CPU Unit to exchange data with an exter-
nal device (slave or Unit).
I/O map settings Settings that assign variables to I/O ports. Assignment information between I/O
ports and variables.
I/O refreshing Cyclic data exchange with external devices that is performed with predetermined
memory addresses.
MC Test Run A function to check motor operation and wiring from the Sysmac Studio.
NX bus An internal bus of the NX-series Controller.
NX Units Any of the NX-series Units that perform I/O processing with connected external
devices. The Communications Coupler Units are not included with the NX Units.
PDO communications An abbreviation for process data communications. Data is exchanged between
the master and slaves on a process data communications cycle. (The process
data communications cycle is the same as the task period of the primary periodic
task.)
PLC Function Module One of the function modules. This function module executes the user program,
sends commands to the Motion Control Function Module, and provides an inter-
face to the USB and SD Memory Card.
POU An acronym for "program organization unit". A POU is a unit in a program execu-
tion model that is defined in IEC 61
131-3.
A POU contains an algorithm and a local variable table and forms the basic unit
used to build a user program.
There are three types of POUs: programs, functions, and function blocks.
SDO communications One type of EtherCA
T communications in which service data objects (SDOs) are
used to transmit information whenever required.
Sysmac Studio A computer software application for setting, programming, debugging, and trou-
bleshooting NJ/NX-series Controllers. It also provides operations for motion con-
trol and a Simulator.
X Bus An internal bus of the NX-series Controller
.
A bus that can transfer data with a higher speed and larger capacity than the NX
bus.
Terminology
45
NX-series NX502 CPU Unit Hardware User's Manual (W629)

Omron NX Series Specifications

General

Brand	Omron
Model	NX Series
Category	Controller
Language	English