CJ1W-EIP21 Omron, CJ1W-EIP21 Datasheet - Page 319

• 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

10-4 Tag Data Link Performance for CJ2M Built-in EtherNet/IP
10-4-1 Overview
Tag Data Link Specifications for CJ2M Built-in EtherNet/IP Ports
Tag Data Link System
Configuration
Example
Tag Data Link Performance for CJ2M Built-in EtherNet/IP Ports
Number of connections
Packet interval (RPI)
Allowed communications
bandwidth per Unit (PPS)
Number of tags that can be
registered
Tag types
Number of registrable tag sets 32
Number of tags per connec-
tion
Maximum size of 1 tag set
Maximum data size per con-
nection
Maximum link data size per
node (total size of all tags)
Maximum number of tags that
can be refreshed per CPU Unit
cycle
Data that can be refreshed per
CPU Unit cycle
Ports
32
1 to 10,000 ms (in 0.5-ms units)
3,000 pps
32
CIO Area, DM Area, EM Area, Holding Area, Work Area, and network symbols
8 (7 tags when the tag set contains the PLC status)
640 words
(The PLC status uses 1 word when the tag
set contains the PLC status.)
640 words
640 words
Output/Transmission
(CPU → EtherNet/IP): 32
Input/Reception (EtherNet/IP → CPU): 32
Output/Transmission (CPU → EtherNet/IP):
640 words
Input/Reception (EtherNet/IP → CPU):
640 words
Note The total for output/transmission and
The built-in EtherNet/IP port on a CJ2M CPU Unit (CJ2M-CPU3@) supports
tag data links for up to 32 connections, with a data size of 640 words (20
words for unit version 2.0) per connection. These specifications are different
from those of CJ2H built-in ports and EtherNet/IP Units.
A maximum of 640 words of tag data links can be used in communications.
This 640 words is the amount of data that is processed for one data transmis-
sions between the CPU Unit and the CJ2M built-in port.
The tag data link specifications of CJ2M built-in ports are provided in the fol-
lowing table. If these specifications are insufficient for the required system
configuration, use a CJ2H built-in port on a CJ2H-CPU6@-EIP CPU Unit or a
CJ1W-EIP21 EtherNet/IP Unit.
*1 Unit version 2.0: 20 words maximum.
This example configuration is based on the maximum specifications for CJ2M
built-in ports where all nodes send and receive data to the other nodes. As
shown in the following figure, the send area for each node in a 17-node con-
figuration is 20 words.
input/reception is 640 words.
*1
*1
CJ2M built-in port
(CJ2M-CPU3@)
256
0.5 to 10,000 ms (in 0.5-ms units)
6,000 pps
256
256
722 words
(The PLC status uses 1 word when the tag
set contains the PLC status.)
722 words
184,832 words
Output/Transmission
(CPU → EtherNet/IP): 256
Input/Reception (EtherNet/IP → CPU): 256
Output/Transmission (CPU → EtherNet/IP):
6,432 words
Input/Reception (EtherNet/IP → CPU):
6,432 words
Note The total for output/transmission and
Reference: CJ2H built-in port
input/reception is 12,864 words.
(CJ2H-CPU6@-EIP)
Section 10-4
291