Io-Link Total Communications Lost Frames; Overview; Application Method - Omron NX Series User Manual

7 Functions of IO-Link Master Units
7-4
IO-Link Total Communications Lost
Frames
This section describes the function that counts the total number of IO-Link communications lost frames
in IO-Link Mode.
7-4-1

Overview

In IO-Link Mode, you can read the total number of lost frames of IO-Link cyclic communications for
each IO-Link port.
The IO-Link total communications lost frames information is used to diagnose the quality of IO-Link
communications.
You can use it to diagnose the IO-Link communications line quality for the following:
• Confirming that an IO-Link device was correctly installed
• Finding the causes of communications errors that occur during normal operation
IO-Link Master Unit
Total number of lost frames
Port
IO-Link Mode
IO-Link device
7-4-2

Application Method

Use the CX-ConfiguratorFDT or execute a communications instruction for the IO-Link Master Unit to
read Lost Frames of the port.
You can read the total number of retries starting from when IO-Link communications start. When a val-
ue is written in Lost Frames, the total number of retries calculated from the written value can be read.
The range of the total is 00 to FF hex (0 to 255 decimal). The default is 00 hex.
If the total reaches FF hex, it stops at FF hex. In that case, you must execute a communication instruc-
tion for the IO-Link Master Unit to reset the default. If you execute a communications instruction for the
IO-Link Master Unit to write a value, the totaling of the number of retries starts from that value.
This setting is cleared when the Unit power supply is turned OFF.
• Applicable Communications Modes
IO-Link Mode
• Reading the Data with the CX-ConfiguratorFDT
Right-click the Master Unit in Network View and select diagnosis. The Diagnosis Tab Page for the
IO-Link Master Unit is displayed.
7-12
Total number of lost frames
Port
Cyclic communications
lost frames
IO-Link device
Cyclic communications
lost frames
NX/GX-series IO-Link System User's Manual (W570)