OMRON CJ1W-ETN21Automation Systems/ Programmable Controllers/CJ1
OMRON CJ1W-ETN21 Automation Systems
OMRON CJ1W-ETN21 Dimensions
/Images/l_1451-25-118569-198x198.jpglast update: December 19, 2013
• Use Ethernet to implement various communications protocols.• Implement FINS message communications using UDP/IP or TCP/IP with a user application on a host computer or with Support Software, such as the CX-Programmer.• Use the clock on an SNTP server to automatically adjust the clocks in the PLCs connected to the Ethernet network. (An SNTP server is required separately.)• An FTP server is built in, so files can be used to transfer PLC data between network PLCs and workstations or personal computers with an FTP client.• Email can be used to send commands to the PLCs, or triggers can be set so that the PLCs will send PLC data or Ethernet Unit status to a host computer.• The standard UDP/IP and TCP/IP protocols are supported to enable communications with a wide range of devices, workstations, personal computers, and Ethernet modules from other manufacturers.• The SMTP/POP3/SNTP servers enable the use of host names instead of IP addresses. (A DNS server is required separately.)
last update: December 19, 2013
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OMRON CJ1W-ETN21 specification
CJ1W-ETN21 CJ-series Ethernet Unit/Specificationslast update: September 24, 2012
Ethernet Units Specifications
| Item | Specifications | ||
|---|---|---|---|
| Model number | CJ1W-ETN21 | ||
| Type | 100Base-TX (Can be used as 10Base-T) | ||
| Applicable PLCs | CJ-series PLCs | ||
| Unit classification | CJ-series CPU Bus Unit | ||
| Mounting location | CPU Rack or Expansion Rack | ||
| Number of Units that can be mounted | 4 max. (including Expansion Racks) | ||
| Transfer specifications | Media access method | CSMA/CD | |
| Modulation method | Baseband | ||
| Transmission paths | Star form | ||
| Baud rate | 100 Mbit/s (100Base-TX) | 10 Mbit/s (10Base-TX) | |
| Transmission media | Unshielded twisted-pair (UDP) cable Categories: 5, 5e Shielded twisted-pair (STP) cable Categories: 100 Ω at 5, 5e | Unshielded twisted-pair (UDP) cable Categories: 3, 4, 5, 5e Shielded twisted-pair (STP) cable Categories: 100 Ω at 3, 4, 5, 5e | |
| Transmission distance | 100 m (distance between hub and node) | ||
| Number of cascade connections | No restrictions if switching hubs are used. | ||
| Current consumption (Unit) | 370 mA max. at 5 V DC | ||
| Weight | 100 g max. | ||
| Dimensions | 31 × 90 × 65 mm (W × H × D) | ||
| Other general specifications | Other specifications conform to the general specifications of the CJ-series. | ||
last update: September 24, 2012
OMRON CJ1W-ETN21 dimension
CJ1W-ETN21 CJ-series Ethernet Unit/Dimensionslast update: September 24, 2012
CJ1W-ETN21
last update: September 24, 2012
OMRON CJ1W-ETN21 catalog
CJ1W-ETN21 CJ-series Ethernet Unit/Catalog- Catalog
- Manual
- CAD
English
Global Edition
| Catalog Name | Catalog Number [size] | Last Update | |
|---|---|---|---|
 CJ1W-ETN21 Data Sheet | - [643KB] | Dec 14, 201820181214 | CJ1W-ETN21 Data Sheet |
OMRON CJ1W-ETN21 lineup
CJ1W-ETN21 CJ-series Ethernet Unit/Lineuplast update: December 14, 2018
Applicable standards
Ask your OMRON representative for the most recent applicable standards for each model.
Ethernet Unit
| Unit type | Product Name | Specifications | No. of unit numbers allocated | Current consump- tion (A) | Model | |||
|---|---|---|---|---|---|---|---|---|
| Commu- nications cable | Communications functions | Units per CPU Unit | 5 V | 26 V | ||||
| CJ1 CPU Bus Unit | Ethernet Unit  | 100Base-TX | FINS communications service (TCP/IP, UDP/IP), FTP server functions, socket services, mail transmission service, mail reception (remote command receive), automatic adjustment of PLC's built-in clock, server/ host name specifications | 4 * | 1 | 0.37 | --- | CJ1W-ETN21 |
Note: 1. There is no accessory for the CJ-series Ethernet Unit.
2. This unit cannot be used with the Machine Automation Controller NJ-series.
* Up to three Ethernet Units can be connected to a CJ1M-CPU1[]-ETN CPU Unit.
Industrial Switching Hubs
| Product name | Appear- ance | Specifications | Accessories | Current con- sumption (A) | Model | ||
|---|---|---|---|---|---|---|---|
| Functions | No. of pors | Failure de- tection | |||||
| Industrial Switching Hubs |  | Quality of Service (QoS): EtherNet/IP control data priority Failure detection: Broadcast storm and LSI error detection 10/100BASE-TX, Auto-Negotiation | 3 | No | Power supply connector | 0.22 | W4S1-03B |
 | 5 | No | 0.22 | W4S1-05B | |||
| 5 | Yes | Power supply connector Connector for informing error | 0.22 | W4S1-05C | |||
Recommended Network Devices
The following products are recommended for use with the Ethernet Unit.
| Part | Maker | Model number | Contact phone | |
|---|---|---|---|---|
| Sizes and conductor pairs: AWG 24 × 4 pairs | Cables | Tonichi Kyosan Cable, Ltd. | NETSTAR-C5E SAB 0.5 × 4P CP | Kanetsu Planning Department |
| Kuramo Electric Co., Ltd. | KETH-SB | Kuramo Electric Co., Ltd. | ||
| SWCC Showa Cable Systems Co. Ltd. | FAE-5004 | SWCC Showa Cable Systems Co. Ltd. | ||
| RJ45 Connectors | Panduit Corporation | MPS588 | Panduit Corporation, Japan Branch, Osaka Sales Office | |
| Sizes and conductor pairs: AWG 22 × 2 pairs | Cables | Kuramo Electric Co., Ltd. | KETH-PSB-OMR | Kuramo Electric Co., Ltd. |
| RJ45 Assembly Connectors | OMRON | XS6G-T421-1 | OMRON Corporation, Customer Support Center | |
| Sizes and conductor pairs: 0.5 mm × 4 pairs | Cables | Fujikura Ltd. | F-LINK-E 0.5mm × 4P | Kanetsu Planning Department |
| RJ45 Connectors | Panduit Corporation | MPS588 | Panduit Corporation, Japan Branch, Osaka Sales Office | |
| Boots | TSUKO | MK Boots (VI) LB | TSUKO | |
last update: December 14, 2018
- NO. CJ1W-ETN21
- TYPE:Programmable Controllers CJ1 CPU Bus Units
- DATE:2021-06-11
- Associated products:
CJ1W-SPU01-V2 CJ-series High-speed Data Storage Unit (SPU Unit)/Features CJ1W-CLK CJ-series Controller Link Units/Features