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9 Checking IO-Link Communications

This section describes how to check that the CPU Unit is correctly receiving data from the safety

light curtain by the IO-Link connection.

To check this, the data that is being received by the Intelligent Tap from the safety light curtain is

checked to see if it matches the data on Sysmac Studio that is being received by the CPU Unit.

In the following description, the data of the safety output information is monitored for checking

receive data.

Safety output information refers to information about the presence of an object in the detection

zone of the safety light curtain.

Select View - Watch Tab Page on

the menu bar.

Select the Watch (Project)1 Tab

Page.

Enter the Name of the variable to

monitor as follows.

Name: N5_Port1_Safety_output

Note: N5 is the device name set to NX-

ILM400 at CPU/Expansion

Racks. When a different device

name is set, change N5 to that

device name.

This variable reads the safety output information.

When the output is safe (there is no object present in the detection zone of the safety light

curtain), True is displayed at Online value, and when the output is not safe (there is an object

present in the detection zone of the safety light curtain), False is displayed at Online value.

Remove the object from the detection zone of

the safety light curtain, and make sure that the

sensor status indicator (yellow) and output

status indicator (green) on the Intelligent Tap

are lit.

Select Controller - Online on the menu bar to set to the online mode.

Sensor status indicator (yellow)

Output status indicator (green)

9.2 Checking Receive Data

Omron NX Series Network Connection Guide

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