Terminology
Term
Meaning
DTM
An abbreviation for Device Type Manager that refers to a device drive.
IO-Link device
A device with a sensor or actuator that can perform IO-Link communications
with the IO-Link master.
IO-Link devices are simply referred to as "devices" in IO-Link specifications but
in this manual "IO-Link" is added to distinguish these devices from other com-
munications devices.
IO-Link data object
Data in the devices that you can access with message communications or cy-
clic communications.
IO-Link master
A device that performs IO-Link communications with the IO-Link devices in the
IO-Link System and simultaneously communicates with the Controller through
the network. "IO-Link Master Unit" is used to refer to a specific Unit.
IO-Link I/O Hub
An IO-Link device that supports IO-Link communications. The Hub exchanges
I/O data from the external devices connected to it with the IO-Link Master Unit.
IODD
An abbreviation for IO Device Description that refers to files containing IO-Link
device definitions.
SIO (DI) Mode
One of the communications mode settings for an IO-Link Master Unit. A com-
munications mode to input digital signals (ON/OFF signals) from the connect-
ed input devices.
SIO (DO) Mode
One of the communications mode settings for an IO-Link Master Unit. A com-
munications mode to output digital signals (ON/OFF signals) to the connected
output devices.
connected external device
A generic term that refers to non-IO-Link sensors and actuators connected to
IO-Link I/O Hubs.
process output data
Output data sent from the IO-Link Master Units to the IO-Link devices in IO-
Link communications.
process data
I/O data in the IO-Link devices. You can allocate a maximum of 32 bytes of
process input data and process output data in the IO-Link master. A generic
term for the IO-Link process input data and IO-Link process output data in IO-
Link devices.
process input data
Input data received from an IO-Link device to the IO-Link Master Units in IO-
Link communications.
port
An I/O connection port of the IO-Link I/O Hub. A non-IO-Link external device is
connected to a port.
Terminology
22
NXR-series IO-Link I/O Hub User’s Manual (W620)
Summary of Contents for NXR Series
Page 6: ...Manual Structure 4 NXR series IO Link I O Hub User s Manual W620 ...
Page 26: ...Revision History 24 NXR series IO Link I O Hub User s Manual W620 ...
Page 34: ...1 Features and System Configuration 1 8 NXR series IO Link I O Hub User s Manual W620 ...
Page 90: ...6 Process Data and Service Data 6 12 NXR series IO Link I O Hub User s Manual W620 ...
Page 108: ...7 Functions of IO Link I O Hubs 7 18 NXR series IO Link I O Hub User s Manual W620 ...
Page 131: ...I Index I 1 NXR series IO Link I O Hub User s Manual W620 I ...
Page 133: ......