Omron NX Series User Manual

10-3
Server Function of CIP Message
Communications
After the NX-series EtherNet/IP Unit receives the CIP messages from external devices, this function
executes services for a specified self-contained object in the NX-series EtherNet/IP Unit.
This is called the server function of CIP message communications.
This section describes the structure of CIP messages that are sent to read/write CIP objects from/to
the NX-series EtherNet/IP Unit from a program on a computer, etc. using the server function of CIP
message communications.
To read and write CIP objects between NX-series EtherNet/IP Units or between an NX-series Ether-
Net/IP Unit and an NJ/NX-series Controller, use the CIP communications instructions.
Refer to 10-2 Client Function of CIP Message Communications on page 10-3 for information on how
to use CIP communications instructions for CIP message communications.
Computer
NJ/NX-series Controller NJ/NX-series Controller
You can read and write some data with
CIP communications instructions.
Request
Response
The writing results of the
specified CIP object that was
read from the specified CIP
object are stored
in the response.
The data to access
is specified in the
request path of the
CIP object or the
explicit message
to read or write data.
POWER
PORT2
POWER
PORT2
10 CIP Message Communications
10-23
NX-series EtherNet/IP Unit User's Manual (W627)
10-3 Server Function of CIP Mes-
sage Communications
10
10-3-1 CIP Message Structure for Accessing CIP Objects

Omron NX Series Specifications

General

Brand	Omron
Model	NX Series
Category	Controller
Language	English