Industrial Automation

CJ1W-ECT21

CJ-series EtherCAT® Slave Unit

CJ1W-ECT21

Hi-speed I/O link based on EtherCAT

last update: December 9, 2024

International Standards

• The standards are abbreviated as follows: U: UL, U1: UL (Class I Division 2 Products for Hazardous Locations), C: CSA, UC: cULus, UC1: cULus (Class I Division 2 Products for Hazardous Locations), CU: cUL, N: NK, L: Lloyd, CE: EC Directives, and KC: KC Registration.
• Contact your OMRON representative for further details and applicable conditions for these standards.

EtherCAT Slave Unit

Unit type	Product name	Specifications		No. of unit numbers allocated	Current con- sumption (A)		Model	Stand- ards
Unit type	Product name	Communica- tions cable	Communications functions	No. of unit numbers allocated	5 V system	24 V system	Model	Stand- ards
CJ1 CPU Bus Unit	EtherCAT Slave Unit	STP (shielded twisted-pair) cable of category 5 or higher with double shielding	Refreshing methods: Free-Run Mode PDO data sizes: TxPDO 400byte max./ RxPDO: 400byte max.	1	0.34	--	CJ1W-ECT21 *	UC1, CE, KC

* When using with the Machine Automation Controller NJ /NXSeries, use CPU Units with unit version 1.10 or later and the Sysmac Studio version 1.13 or higher.

Recommended EtherCAT Communications Cable

Use a straight STP (shielded twisted-pair) cable of category 5 or higher with double shielding (braiding and aluminum foil tape) for EtherCAT.

Cable with Connectors

Item	Recom- mended manu- facturer	Cable length [m] *1	Model
Cable with Connectors on Both Ends (RJ45/RJ45) Standard RJ45 plugs type 1 Wire gauge and number of pairs: AWG26, 4-pair cable Cable sheath material: PUR Cable color: Yellow 2 EtherCAT/ EtherNet/IP (10BASE/100BASE)	OMRON	0.3	XS6W-6PUR8SS30CM-YF
		0.5	XS6W-6PUR8SS50CM-YF
		1	XS6W-6PUR8SS100CM-YF
		2	XS6W-6PUR8SS200CM-YF
		3	XS6W-6PUR8SS300CM-YF
		5	XS6W-6PUR8SS500CM-YF
Cable with Connectors on Both Ends (RJ45/RJ45) Rugged RJ45 plugs type *1 Wire gauge and number of pairs: AWG22, 2-pair cable Cable color: Light blue EtherCAT/ EtherNet/IP (10BASE/100BASE)	OMRON	0.3	XS5W-T421-AMD-K
		0.5	XS5W-T421-BMD-K
		1	XS5W-T421-CMD-K
		2	XS5W-T421-DMD-K
		5	XS5W-T421-GMD-K
		10	XS5W-T421-JMD-K
Cable with Connectors on Both Ends (M12 Straight/M12 Straight) Shield Strengthening Connector cable *3 M12/Smartclick Connectors Wire Gauge and Number of Pairs: AWG22, 2-pair Cable Cable color: Black EtherCAT/ EtherNet/IP (10BASE/100BASE)	OMRON	0.5	XS5W-T421-BM2-SS
		1	XS5W-T421-CM2-SS
		2	XS5W-T421-DM2-SS
		3	XS5W-T421-EM2-SS
		5	XS5W-T421-GM2-SS
		10	XS5W-T421-JM2-SS
Cable with Connectors on Both Ends (M12 Straight/RJ45) Shield Strengthening Connector cable *3 M12/Smartclick Connectors Rugged RJ45 plugs type Wire Gauge and Number of Pairs: AWG22, 2-pair Cable Cable color: Black EtherCAT/ EtherNet/IP (10BASE/100BASE)	OMRON	0.5	XS5W-T421-BMC-SS
		1	XS5W-T421-CMC-SS
		2	XS5W-T421-DMC-SS
		3	XS5W-T421-EMC-SS
		5	XS5W-T421-GMC-SS
		10	XS5W-T421-JMC-SS

*1. Standard type cables length 0.2, 0.3, 0.5, 1, 1.5, 2, 3, 5, 7.5, 10, 15 and 20 m are available.
Rugged type cables length 0.3, 0.5, 1, 2, 3, 5, 10 and 15 m are available.
For details, refer to Cat.No.G019.
*2. Cables colors are available in blue, yellow, or Green.
*3. For details, contact your OMRON representative.

Cable / Connectors

Wire Gauge and Number of Pairs: AWG24, 4-pair Cable

Item	Appearance	Recommended manufacturer	Model
Cables	----	Kuramo Electric Co.	KETH-SB *
RJ45 Connectors	----	Panduit Corporation	MPS588-C *

* We recommend you to use above cable and connector together.

Wire Gauge and Number of Pairs: AWG22, 2-pair Cable

Item	Appearance	Recommended manufacturer	Model
Cables	----	Kuramo Electric Co.	KETH-PSB-OMR *
Cables	----	JMACS Japan Co., Ltd.	PNET/B *
RJ45 Assembly Connector		OMRON	XS6G-T421-1 *

* We recommend you to use above cable and connector together.
Note: Connect both ends of cable shielded wires to the connector hoods.

last update: December 9, 2024

Product Category

Automation Systems
- Programmable Controllers
  - CJ1
    - CPU Bus Units

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