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Terminology
Term
SIO
SIO (DI) Mode
SIO (DO) Mode
Slave Information Interface
index
object
Operational
subindex
receive PDO
Sync Manager
Safe-Operational
transmit PDO
task period
device event
Error-level Device Event
Warning-level Device Event Flag
device variable
network configuration information
primary periodic task
Pre-Operational
process output data
30
Abbre-
viation
---
An acronym for standard input/output. A general term for the communi-
cations modes to input and output digital signals (ON/OFF signals).
---
One of the communications mode settings. A communications mode to
input digital signals (ON/OFF signals) from input devices.
---
One of the communications mode settings. A communications mode to
output digital signals (ON/OFF signals) to output devices.
SII
Slave information that is stored in non-volatile memory in the slave.
---
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.
---
A state in EtherCAT communications where SDO communications and
I/O are possible.
---
Sub-address of an object within the object dictionary.
RxPDO
A process data object received by an EtherCAT slave.
SM
Collection of control elements to coordinate access to concurrently
used objects.
---
A state in EtherCAT communications where only SDO communications
and reading input data from slaves are possible. Outputs from slaves
are not performed.
TxPDO
A process data object sent from an EtherCAT slave.
---
The interval at which the primary periodic task or a periodic task is exe-
cuted.
Refer to the software user's manual for the connected CPU Unit or In-
dustrial PC for details.
---
Events that are reported from the IO-Link devices to the IO-Link master
with the IO-Link event reporting function. The following two types of
events are allocated as I/O data.
•
Error-level Device Event
•
Warning-level Device Event Flag
---
An event that is reported to the IO-Link Master Unit when an error is
detected for which an IO-Link device cannot continue operation.
---
An event that is reported to the IO-Link Master Unit when an error is
detected for which an IO-Link device can continue operation.
---
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
NX-series CPU Units to which NX Units can be connected, 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 di-
rectly reading and writing this device variable.
---
The EtherCAT network configuration information held by the EtherCAT
master.
---
The task with the highest priority.
Refer to the software user's manual for the connected CPU Unit or In-
dustrial PC for details.
---
A state in EtherCAT communications where only SDO communications
are possible with the slaves, i.e., no I/O can be performed.
---
Output data sent from the IO-Link master to the IO-Link devices in IO-
Link communications.
NXR-series IO-Link Master Unit for EtherCAT User's Manual (W640)
Description
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Table of Contents
Troubleshooting
