CJ-series EtherNet/IP Unit
last update: October 1, 2024
Item | Specifications | |
---|---|---|
Model number | CJ1W-EIP21 | |
Type | 100Base-TX *1 | |
Applicable PLCs | NJ-series, CJ (CJ1, CJ2) series, CP1H, and NSJ series PLCs. | |
Unit classification | CJ-series CPU Bus Unit | |
Mounting location | CPU Rack or Expansion Rack | |
Number of Units that can be
mounted |
NJ-series System: 4 max. (including Expansion Racks)
CJ series System and NSJ series System: 8 max. (including Expansion Racks) *2 CP1H System: 2 max. |
|
CPU
Unit words used |
Allocated CIO Area
words (CPU Bus Unit words) |
25 words/Unit (one unit number’s words) |
These words contain control bits and flags, the target node PLC’s operating and
error information, Unit status, communications status, registered/normal target node information, and FINS/TCP connection status. |
||
Allocated DM Area
words (CPU Bus Unit words) |
100 words/Unit (one unit number’s words) | |
These words contain the IP address display/setting area. | ||
User-set area | Any usable data area words | |
Target node PLC’s operating and error information, and registered/normal target
node information |
||
CPU Bus Unit
System Setup |
Not used. | |
Non-volatile memory within
EtherNet/IP Unit (See note.) |
The following settings are stored in the EtherNet/IP Unit’s non-volatile memory.
Note: Unlike the regular Ethernet Units, the CPU Bus Unit Setup Area in the CPU Unit is not used for these settings. 1. Unit Setup (communications settings for the EtherNet/IP Unit, such as the IP address, DNS server settings, host name, baud rate, FINS/UDP settings, and FINS/TCP settings) 2. Tag data link settings (device parameters) |
|
Transfer
specifi- cations |
Media access
method |
CSMA/CD |
Modulation method | Baseband | |
Transmission paths | Star form | |
Baud rate | 100 Mbit/s (100Base-TX) | |
Transmission media | Shielded twisted-pair (STP) cable
Categories: 100 Ω at 5, 5e+ |
|
Transmission
distance |
100 m (distance between hub and node) | |
Number of cascade
connections |
There is no limitation when a switching hub is used. | |
Current consumption (Unit) | 410 mA max. at 5 V DC | |
Weight | 94 g max. | |
Dimensions | 31 × 90 × 65 mm (W × H × D) | |
Other general specifications | Other specifications conform to the general specifications of the CJ-series. |
*1. If tag data links are being used, use 100Base-TX. Otherwise, 10Base-T can be used, but this is not recommended.
*2. Up to seven EtherNet/IP Units can be connected to a CJ2H-CPU6[]-EIP. Up to two EtherNet/IP Units can be connected to a CJ2M CPU Unit.
Item | Specifications | ||||
---|---|---|---|---|---|
NJ | CJ2 | CJ1 | |||
CIP
service |
Tag data
links (Cyclic communi- cations) |
Number of connections | 256 | ||
Packet interval
(refresh cycle) |
0.5 to 10,000 ms (in 0.5-ms units)
Can be set independently for each connection. (Data is refreshed over the network at the preset interval and does not depend on the number of nodes.) |
||||
Allowed
communications bandwidth per Unit |
6,000 to 12,000 pps *1 *2 | ||||
Number of tag sets | 256 | ||||
Tag types | CIO Area, DM Area, EM Area, Holding Area, Work Area, and
network symbols *3 |
||||
Number of tags per
connection (= 1 tag set) |
8 (7 tags when the tag set contains the controller status) | ||||
Maximum link data size
per node (total size of all tags) |
184,832 words | ||||
Maximum data size per
connection |
504 bytes (252 words) or 1444 bytes (722 words) *4
Data synchronicity is maintained within each connection. |
||||
Number of registrable
tag sets |
256 (1 connection = 1 tag set) | ||||
Maximum size of 1 tag
set |
722 words
(The controller status uses 1 word when the tag set contains the PLC status.) |
||||
Maximum number of tags
that can be refreshed per CPU Unit cycle *5 |
Output/Transmission
(CPU to EtherNet/IP): 256 Input/Reception (EtherNet/IP to CPU): 256 |
Output/Transmission (CPU to
EtherNet/IP): 19 Input/Reception (EtherNet/IP to CPU): 20 *6 |
|||
Data that can be
refreshed per CPU Unit cycle *5 The layout of the allocated CIO Area words is the defauly. *7 |
Output/Transmission
(CPU to EtherNet/IP): 6,432 words Input/Reception (EtherNet/IP to CPU): 6,432 words |
Output/Transmission (CPU to
EtherNet/IP): 7,469 words Input/Reception (EtherNet/IP to CPU): 7,469 words |
|||
Changing tag data link
parameters during operation |
Supported *8 | ||||
Multicast packet filter
function *9 |
Supported | ||||
Explicit
messaging |
Class 3 (connected) | Number of connections: 128 | |||
UCMM (unconnected) | Number of clients that can communicate at one time: 32 max.
Number of servers that can communicate at one time: 32 max. |
||||
CIP routing *10 | Supported
CJ1W-EIP21/EIP21S, CS1W-EIP21/EIP21S, NJ-501-[][][][], NJ-301-[][][][], CJ2H-CPU[][]-EIP, CJ2M-CPU3[] |
||||
FINS service *11 | FINS/UDP | Not supported | Supported | ||
FINS/TCP | Not supported | 16 connections max. | |||
SNMP | Agent | SNMPv1, SNMPv2c, SNMP trap | |||
MIB | MIB-II | ||||
EtherNet/IP conformance test | CT11 | ||||
Ethernet interface | 10BASE-T or 100BASE-TX
Auto Negotiation or fixed settings |
*1. In this case, pps means "packets per second" and indicates the number of packets that can be processed in one second.
*2. When using the EtherNet/IP Unit with version 3.0 or later. When using the EtherNet/IP Unit with version 2.1 or earlier, the maximum allowed communications bandwidth per Unit is 6,000 pps.
*3. Network symbols can be used for the following CPU Units.
NJ501-[][][][]/NJ301-[][][][]/CJ2H-CPU6[]-EIP/CJ2M-CPU3[]/CJ2H-CPU6[] withe unit version 1.6 or later/CJ2M-CPU1[] with unit version 2.2 or later *4. To use 505 to 1,444 bytes as the data size, the system must support the Large Forward Open standard (an optional CIP specification). The CS/CJ-series Units support this standard, but before connecting to nodes of other companies, confirm that those devices also support it.
*5. If the maximum data size is exceeded, the data refreshing with the CPU Unit will extend over two or more cycles.
*6. If status layout is set to user settings, the maximum number of tags is as follows.
Output/Transmission | Input/ Reception |
---|---|
19 | 19 |
*7. The table below shows value when the layout type is User defined.
When connected to CJ1 CPU Unit | When connected to CJ2 CPU Unit | ||
---|---|---|---|
Data (words) that
can be refleshed per CPU Unit cycle |
Output/Transmission | 7405 | 6368 |
Input/Reception | 7405 | 6368 |
Service | Protocol | Port number | Remarks | |||
---|---|---|---|---|---|---|
CJ1/CJ2 | NJ | CJ1/CJ2 | NJ | CJ1/CJ2 | NJ | |
Tag data links | UDP | 2222 | The port number is fixed. | |||
Class3, UCMM | TCP/UDP | 44818 | ||||
DNS | UDP | 53 | ||||
BOOTP client | --- | UDP | --- | 68 | ||
FINS/UDP service | UDP | --- | 9600 | --- | Port numbers in the
Unit Setup can be changed with the CX-Programmer. |
Port numbers in the
Unit Setup can be changed with the Sysmac Studio. |
FINS/TCP service | TCP | --- | 9600 | --- | ||
FTP | TCP | 20, 21 | ||||
SNTP | UDP | 123 | ||||
SNMP | UDP | 161 | ||||
SNMP trap | UDP | 162 |
*10.When NJ-Series CPU Units is described, Supported only by the EtherNet/IP Units with unit version 2.1 or later and
NJ-Series CPU Units with unit version 1.01 or later.
The following versions of the Sysmac Studio, CX-Programmer and Network Configurator are required to set EtherNet/IP Units.
Yes: Supported, ---: Not supported
CJ1W-EIP21 | Sysmac Studio *1 | CX-Programmer *2 | Network Configurator for EtherNet/IP | ||||
---|---|---|---|---|---|---|---|
Ver.1.01 or
lower |
Ver.1.02 or
higher |
Ver.7.1 or
lower |
Ver.8.0 or
higher |
Ver.8.02 or
higher |
Ver.3.40 or lower | Ver.3.50 or higher | |
Ver.1.0 | --- | --- | --- | Yes *3 | Yes | Yes | Yes |
Ver.2.0 | --- | --- | --- | Yes | Yes | Yes | Yes |
Ver.2.1 | --- | Yes | --- | Yes | Yes | --- | Yes |
Ver.3.0 *4 | --- | Yes | --- | Yes | Yes | --- | Yes |
*1. Available only when connecting with NJ-series CPU Units.
*2. Available only when connecting with CJ1/CJ2-series CPU Units.
*3. The most recent version of the common module for CX-One version 3.[][] must be installed.
*4. Using the Sysmac Studio auto-update (November 2014 or later).
The Network Configurator is a software package designed for building, setting, and controlling a multi-vendor EtherNet/IP Network using OMRON's EtherNet/IP. It is included in CX-One version 3.0. The Network Configurator provides the following functions for building, setting, and controlling EtherNet/IP.
Item | Specification | |||
---|---|---|---|---|
System Requirements | Refer to the CX-One Catalog (Cat. No. R134), visit your local OMRON website. | |||
Network
connection method |
CS1/CJ1 | CJ2 | NJ | |
Serial interface | CPU Unit's Peripheral or
RS-232C port |
CPU Unit's USB or RS-232C port | CPU Unit's USB port | |
Ethernet
interface |
EtherNet/IP Unit's
Ethernet port |
CPU Unit's Ethernet port
EtherNet/IP Unit's Ethernet port |
||
Location on Network | A single node address is used (only when directly connected to EtherNet/IP). | |||
Number of Units that can be
connected to Network |
A single Network Configurator per Network
(More than one Configurator cannot be used in the same system.) |
|||
Main
functions |
Network control
functions |
The Network configuration can be created and edited regardless of whether the
Network Configurator is online or offline. The Network configuration can be read from a file or the network. |
||
Configuration
functions |
The EDS files used by the Network Configurator can be installed and deleted. | |||
Supported file formats | Configurator network configuration files (*.ncf)
Configuration files (*.ncf) created using the Network Configurator for EtherNet/IP (version 2) can be imported by selecting External Data - Import from the File Menu. |
last update: October 1, 2024