Omron NX-AD series User Manual

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Terminology
NX-series Analog I/O Units User’s Manual for Analog Input Units and Analog Output Units (W522)
Terminology
Term
Abbre-
viation
Description
application layer status, AL status --- Status for indicating information on errors that occur in an application on
a slave.
CAN application protocol over Ether-
CAT
CoE A CAN application protocol service implemented on EtherCAT.
CAN in Automation CiA CiA is the international users' and manufacturers' group that develops
and supports higher-layer protocols.
Communications Coupler Units --- The generic name of an interface unit for remote I/O communications on
a network between NX Units and a host network master.
CPU Rack --- A rack to which a CPU Unit is mounted. For an NX-series NX1P2 CPU
Unit, a CPU Rack has a CPU Unit with NX Units and an End Cover
mounted to it.
DC time --- Time indicated by the clock shared between the CPU Unit and the NX
Units in a CPU Rack for an NX-series NX1P2 CPU Unit.
EtherCAT slaves that support distributed clock synchronization have a
clock that is shared by all slaves in the network. The time that is based
on this distributed clock is called the DC time. The same clock is shared
by an NX-series NX1P2 CPU Unit, NX Units connected to the CPU Unit,
and applicable EtherCAT slaves.
device profile --- A collection of device dependent information and functionality providing
consistency between similar devices of the same device type.
device variable --- A variable that is used to access a specific device through an I/O port by
an NJ/NX-series CPU Unit or NY-series Industrial PC. Process data on
an EtherCAT slave is allocated to this variable. For an NX-series NX1P2
CPU Unit, I/O data for the NX Units on a CPU Unit is allocated. A user
application on a CPU Unit or Industrial PC accesses a device that can
be connected, by directly reading and writing this device variable.
distributed clock DC Clock distribution mechanism used to synchronize EtherCAT slaves and
the EtherCAT master.
EtherCAT slave controller ESC A controller for EtherCAT slave communications.
EtherCAT slave information ESI An XML file that contains setting information for an EtherCAT slave.
EtherCAT state machine ESM An EtherCAT communications state machine.
EtherCAT Technology Group ETG The ETG is a global organization in which OEM, end users, and technol-
ogy providers join forces to support and promote the further technology
development.
I/O map settings --- Settings that assign variables to I/O ports. Assignment information
between I/O ports and variables.
I/O port --- A logical interface that is used by the NJ/NX-series CPU Unit or
NY-series Industrial PC to exchange data with an external device (slave
or Unit).
I/O refreshing --- Cyclic data exchange with external devices that is performed with prede-
termined memory addresses.
index --- Address of an object within an application process.
network configuration information --- The EtherCAT network configuration information held by the EtherCAT
master.
NX bus --- The NX-series internal bus.
object --- An abstract representation of a particular component within a device,
which consists of data, parameters, and methods.
object dictionary OD Data structure that contains description of data type objects, communi-
cation objects and application objects.

Omron NX-AD series Specifications

General

Brand	Omron
Model	NX-AD series
Category	I/O Systems
Language	English