Functions - Omron NX-ILM400 User Manual

6-4

Functions

This section provides an overview of the functions of the IO-Link Master Unit.
For details, refer to the IO-Link System User's Manual (Cat. No. W570).
Function
Communica- Cyclic communica-
tions tions
Message communi-
cations
Communications mode settings
Digital inputs for pin 2
Automatic baud rate setting for
IO-Link communications
Connected device verification
IO-Link communications error
detection
Detection of short-circuits in I/O
cables
Notification of input data validity
Load rejection for controller commu-
nications error
IO-Link total communications lost
frames
Digital input filter
Digital input collection
NX-series IO-Link Master Unit User's Manual (W567)
I/O data (process data) in the IO-Link devices is cyclically exchanged with the IO-Link
Master Unit as the IO-Link communications master.
At the same time, this data and the status of the IO-Link Master Unit is cyclically
exchanged with the controller, with the IO-Link Master Unit operating as a slave of the
controller.
Cyclic communications can be used to check the amount of detection performance dete-
rioration in devices, and to check changes in usage conditions, such as the amount of
incident light for photoelectric sensors, stability detection margins, and excessive prox-
imity for proximity sensors.
The controller can send messages (commands) to the IO-Link Master Unit and receive
the response from the IO-Link Master Unit.
The IO-Link Master Unit can also function as a gateway to send messages (commands
and responses) between the controller and the IO-Link devices.
During operation, you can change and adjust device parameters, such as threshold set-
tings, tuning execution, and ON-delay time changes, from a program. Or, during opera-
tion, you can check the internal status, such as the operating times of devices.
You can select any of the following modes for each port:
IO-Link Mode, SIO (DI) Mode, SIO (DO) Mode, or Disable Port
This allows you to combine IO-Link communications and digital I/O in a single Unit.
In IO-Link Mode, you can perform digital input with pin 2 while performing IO-Link com-
munications.
The IO-Link Master Unit automatically matches the specific baud rates (COM1, COM2,
or COM3) of the IO-Link devices to communicate with the IO-Link devices.
Therefore, it is not necessary to set the baud rate of the connected device for each port.
This function is used to verify the configuration of IO-Link devices that are connected to
the IO-Link Master Unit against the registered IO-Link device configuration settings
when the power supply is turned ON.
The user can enable or disable connected device verification.
This function detects I/O cable breaks, disconnections from IO-Link device ports,
error-level device events, device configuration verification errors, and IO-Link device
malfunctions.
This function detects short-circuits in I/O cables
The host controller can use the Input Data Enabled Flags to determine whether the
IO-Link process input data for IO-Link communications is valid.
This function turns OFF outputs from the IO-Link Master Unit when an error occurs in
communications with the controller in IO-Link Mode or in an SIO mode.
This prevents output operations with incorrect values when a communications error
occurs.
The IO-Link total communications lost frames can be read from the CX-ConfiguratorFDT.
You can use this function to determine communications status as affected by IO-Link
communications noise or other factors.
You can remove the chattering and noise of the input signal for digital inputs in SIO (DI)
Mode or for digital inputs for pin 2 in IO-Link Mode.
When the input data changes without stabilization of the state of the contact point due to
chattering and noise, this function prevents changes in data and stabilizes it.
In IO-Link Mode, this function reflects the specified bit data in the input data from the
*1
IO-Link device on the digital input data of the IO-Link Master Unit. As a result, the bit
data in the input data from the IO-Link device can be aggregated into the digital input
data of the IO-Link Master Unit. One bit for each IO-Link port can be aggregated. This
function cannot be used in SIO (DI) Mode and SIO (DO) Mode.
If you are using this function, you cannot perform digital inputs for pin 2.
6 Types and Functions of IO-Link Master Units
Description
6
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