Precautions For Correct Use - Omron NX Series User Manual

Precautions for Correct Use

This section provides application precautions for IO-Link Systems.
Refer to the user's manuals for the IO-Link Master Units for application precautions that are specific to
the IO-Link Master Units.
Setting Ports on an IO-Link Master Unit
• When you connect devices to an IO-Link Master Unit, check the following settings for the ports on
the IO-Link Master Unit.
Communications Mode Settings:
IO-Link Device Configuration Set-
tings:
• The following operation will occur if the communications mode setting does not match the connected
device type.
a) If a non-IO-Link sensor is connected in IO-Link Mode, the sensor will operate but the IO-Link
Master Unit will not read the ON/OFF signals. An error will not be detected.
If connected device verification is enabled, an IO-Link communications error will occur.
b) If a non-IO-Link actuator is connected in IO-Link Mode, the actuator will perform unexpected op-
eration.
If connected device verification is enabled, an IO-Link communications error will occur.
c) If an IO-Link device is connected in SIO (DO) Mode, the IO-Link device will not operate. An error
will not be detected.
d) If an IO-Link device is connected in SIO (DI) Mode, the IO-Link device will operate in Standard
I/O Mode (SIO Mode).
e) If a non-IO-Link actuator is connected in SIO (DI) Mode, the actuator will not operate.
f) If a non-IO-Link sensor is connected in SIO (DO) Mode, the sensor will not operate.
IO-Link Device Verification Settings
To check the configuration when you replace devices, enable verification with the IO Link Device
Verification Setting. If you do not enable verification with the IO-Link Device Verification Setting,
errors will not be detected for an IO-Link System even if unwanted IO-Link devices are connected.
I/O Data Size Settings for IO-Link Devices and IO-Link Master Units
• IO-Link Device Configuration Settings
Observe the following precautions when you manually set the I/O data sizes for IO-Link devices in
the IO-Link Device Configuration Settings in the parameters of the IO-Link Master Unit from the
Support Software.
a) Set the IO-Link input data sizes in the IO-Link Device Configuration Settings to values that are
equal to or greater than the IO-Link input data sizes of the IO-Link devices.
If you set a value that is less than the input data size of an IO-Link device, a device I/O size error
will occur.
NX/GX-series IO-Link System User's Manual (W570)
IO-Link Mode, SIO (DI) Mode, and SIO(DO) Mode
Device ID, vendor ID, serial number, IO-Link revision, IO-Link input data
size, and IO-Link output data size
Precautions for Correct Use
17