CJ1W-EIP21 Omron, CJ1W-EIP21 Datasheet - Page 35

• Manufacturer Part Number: CJ1W-EIP21
• Description: Ethernet I/P Module
• Manufacturer: Omron

Specifications of CJ1W-EIP21

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Communications Services Overview
Note
Originator
device
• Target IP address
• Target tag set
• Originator tag set
• Packet interval (RPI)
Connection information
Tag set name: SP1_IN
Tag Set (Inputs)
2) Message Communications (Unconnected Message Service)
User-specified CIP commands can be sent to devices on the EtherNet/IP net-
work. CIP commands, such as those for reading and writing data, can be sent
and their responses received by executing the CMND instruction from the CS/
CJ-series CPU Unit’s user program (without using a connection).
CS/CJ-series CPU Unit
(1) In this example, a connection is established with the originator’s tag list
(2) The specifications for using tag data links with the CJ2M built-in EtherNet/
PLC Status
Tag a
Tag b
Tag c
Tag g
containing tags a to g (inputs), which are grouped in a tag set called
SP1_IN, and the target’s tag list containing tags i and ii (outputs), which
are grouped in a tag set called SP1_OUT.
IP port on a CJ2M-CPU3@ CPU Unit are different from the specifications
for EtherNet/IP Units (CJ1W-EIP21 or CS1W-EIP21) and the CJ2H built-
in EtherNet/IP port on a CJ2H-CPU@@-EIP CPU Unit. Make sure you are
using the correct specifications for the application.
Refer to 2-1-3 Communications Specifications for the communications
specifications.
CMND
:
Response
CIP command
EtherNet/IP Unit
Connection
EtherNet/IP
Data flow
Ethernet
(EtherNet/IP)
Tag set name: SP1_IN
Tag Set (Outputs)
PLC Status
Tag i
Tag ii
Section 1-4
Target
device
7