Terminology - Omron Sysmac NX Series User Manual

Terminology

Term
application layer status, AL status
CAN application protocol over Ether-
CAT
CAN in Automation
CPU Rack
DC time
EtherCAT slave controller
EtherCAT slave information
EtherCAT state machine
EtherCAT Technology Group
I/O port
I/O map settings
I/O refreshing
NX bus
NX message communications
PDO communications
SDO communications
Slave Information Interface
Sync0
Analog Input Time Stamp
index
object
NX-series Analog I/O Units User's Manual for High-speed Analog Input Units (W592)
Abbre-
viation
--- Status for indicating information on errors that occur in an application
on a slave.
CoE A CAN application protocol service implemented on EtherCAT.
CiA CiA is the international users' and manufacturers' group that develops
and supports higher-layer protocols.
--- A rack to which a CPU Unit is mounted. For NX-series CPU Units to
which NX Units can be connected, a CPU Rack has a CPU Unit with
NX Units and an End Cover mounted to it.
--- In a CPU Rack of a NX-series CPU Unit to which NX Units can be con-
nected, time indicated by the clock shared between the CPU Unit and
the NX Units. EtherCAT slaves that support distributed clock synchroni-
zation 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 a CPU Unit, NX Units connected to the CPU Unit,
and applicable EtherCAT slaves.
ESC A controller for EtherCAT slave communications.
ESI An XML file that contains setting information for an EtherCAT slave.
ESM An EtherCAT communications state machine.
ETG The ETG is a global organization in which OEM, end users, and tech-
nology providers join forces to support and promote the further technol-
ogy development.
--- 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).
--- Settings that assign variables to I/O ports. Assignment information be-
tween I/O ports and variables.
--- Cyclic data exchange with external devices that is performed with pre-
determined memory addresses.
--- The NX-series internal bus.
--- Message communications to access NX objects.
--- An acronym for process data communications.
--- One type of EtherCAT communications in which service data objects
(SDOs) are used to transmit information whenever required.
SII Slave information that is stored in non-volatile memory in the slave.
--- A signal that gives the interrupt timing based on the distributed clock
(DC) in EtherCAT communications. The slaves execute controls ac-
cording to this interrupt timing.
--- The DC time at which AD conversion starts in the first sampling of ana-
log input data during each task period in an NX-series High-speed Ana-
log Input Unit. The timing of starting the AD conversion is the same for
all channels.
--- Address of an object within an application process.
--- An abstract representation of a particular component within a device,
which consists of data, parameters, and methods.
Terminology
Description
35