Omron NX Series User Manual page 126

6 IO-Link System Communications
Precautions for Correct Use
When you connect an NX-type IO-Link Master Unit to an EtherNet/IP Coupler Unit and perform
message communications with the IO-Link Master Unit from the controller, use the EtherNet/IP
Coupler Unit with unit version 1.2 or later.
For unit version 1.1 or earlier, the message communications are not available.
l Conditions for Message Communications with the IO-Link Master Unit
It is the same as communications with EtherCAT or NX bus. Refer to Conditions for Message Com-
munications with the IO-Link Master Unit on page 6-8 for details.
l Communications Instructions for IO-Link Master Unit
Use the following read instructions and write instructions for each controller for message communi-
cations to the IO-Link Master Unit.
• Using an NJ/NX-series CPU Unit or NY-series Industrial PC as the Controller
IO-Link Master
Units
NX-type
The controller can access the relevant NX objects of the IO-Link Master Unit using the CIP object
(i.e., Read NX object (33 hex) or Write NX object (34 hex)) of the EtherNet/IP Coupler Unit.
For details on how to access the relevant objects of the IO-Link Master Unit, refer to the NX-
series EtherNet/IP Coupler Unit User's Manual (Cat. No. W536).
For details of the communications instructions, refer to the instructions reference manual for the
connected CPU Unit or Industrial PC.
• Using a CJ/CP/CS-series PLC as the Controller
IO-Link Master
Units
NX-type
The controller can access the relevant NX objects of the IO-Link Master Unit using the CIP object
(i.e., Read NX object (33 hex) or Write NX object (34 hex)) of the EtherNet/IP Coupler Unit.
For details on how to access the relevant objects of the IO-Link Master Unit, refer to the NX-
series EtherNet/IP Coupler Unit User's Manual (Cat. No. W536).
Refer to the CS/CJ/NSJ Series Instructions Reference Manual (Cat. No. W474) and EtherNet/IP
Units Operation Manual (Cat. No. W465) for details on the communications instructions.
6-10
Read instructions
CIPSend (Send Explicit Message) instruction
CIPUCMMSend (Send Explicit Message) instruction
Read instructions
CMND (EXPLICIT MESSAGE SEND) instruction
(FINS 2810)
Write instructions
Write instructions
NX/GX-series IO-Link System User's Manual (W570)