{"product_id":"omron-cj1w-eip21-cj-series-ethernet-ip-unit","title":"Omron CJ1W-EIP21 CJ Series EtherNet\/IP Unit","description":"\u003cp\u003eThe \u003cstrong\u003eOmron CJ1W-EIP21\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eCJ1W-EIP21\u003c\/strong\u003e EtherNet\/IP Unit, operates as a dedicated Ethernet communication interface for cyclic and message-based data exchange between CJ-series controllers and EtherNet\/IP devices. The unit is classified as a CJ-series CPU Bus Unit and supports 100BASE-TX communication at 100 Mbit\/s over a star topology.\u003c\/p\u003e\n\u003ch3\u003eTechnical Identifier Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eOmron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eCJ1W-EIP21\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eCJ-series EtherNet\/IP Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnit Classification\u003c\/td\u003e\n\u003ctd\u003eCJ-series CPU Bus Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eCJ Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork\u003c\/td\u003e\n\u003ctd\u003eEtherNet\/IP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMedia Access Method\u003c\/td\u003e\n\u003ctd\u003eCSMA\/CD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModulation Method\u003c\/td\u003e\n\u003ctd\u003eBaseband\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Path\u003c\/td\u003e\n\u003ctd\u003eStar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthernet Standard\u003c\/td\u003e\n\u003ctd\u003e100BASE-TX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBaud Rate\u003c\/td\u003e\n\u003ctd\u003e100 Mbit\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Transmission Distance\u003c\/td\u003e\n\u003ctd\u003e100 m between hub and node\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Location\u003c\/td\u003e\n\u003ctd\u003eCPU Rack or Expansion Rack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNJ-series Maximum Units\u003c\/td\u003e\n\u003ctd\u003e4 units, including Expansion Racks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCJ-series \/ NSJ-series Maximum Units\u003c\/td\u003e\n\u003ctd\u003e8 units, including Expansion Racks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCP1H Maximum Units\u003c\/td\u003e\n\u003ctd\u003e2 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Current Consumption\u003c\/td\u003e\n\u003ctd\u003e410 mA max. at 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e3.1 cm x 6.5 cm x 9.0 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnit Weight\u003c\/td\u003e\n\u003ctd\u003e0.094 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e1.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eCJ1W-EIP21\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eOmron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eEtherNet\/IP Communication Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eCJ Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnit Classification\u003c\/td\u003e\n\u003ctd\u003eCPU Bus Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Protocol\u003c\/td\u003e\n\u003ctd\u003eEtherNet\/IP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthernet Interface\u003c\/td\u003e\n\u003ctd\u003e100BASE-TX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Speed\u003c\/td\u003e\n\u003ctd\u003e100 Mbit\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMedia Access Method\u003c\/td\u003e\n\u003ctd\u003eCSMA\/CD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModulation\u003c\/td\u003e\n\u003ctd\u003eBaseband\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Topology\u003c\/td\u003e\n\u003ctd\u003eStar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Node Distance\u003c\/td\u003e\n\u003ctd\u003e100 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Location\u003c\/td\u003e\n\u003ctd\u003eCPU Rack or Expansion Rack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNJ-series Mounting Limit\u003c\/td\u003e\n\u003ctd\u003e4 units max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCJ \/ NSJ-series Mounting Limit\u003c\/td\u003e\n\u003ctd\u003e8 units max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCP1H Mounting Limit\u003c\/td\u003e\n\u003ctd\u003e2 units max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Consumption\u003c\/td\u003e\n\u003ctd\u003e410 mA max. at 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Power Consumption\u003c\/td\u003e\n\u003ctd\u003eApproximately 2.05 W at maximum 5 VDC current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical Dimensions\u003c\/td\u003e\n\u003ctd\u003e3.1 cm x 6.5 cm x 9.0 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003eNot specified by the provided data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnit Weight\u003c\/td\u003e\n\u003ctd\u003e0.094 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e1.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEtherNet\/IP Communication and CJ CPU Bus Architecture\u003c\/h3\u003e\n\u003cp\u003eThe CJ1W-EIP21 operates as a CPU Bus Unit rather than as a conventional Basic I\/O Unit. Its communication processing therefore interfaces with the CJ-series CPU through the CPU Bus architecture while providing EtherNet\/IP network connectivity.\u003c\/p\u003e\n\u003cp\u003eThe 100BASE-TX interface provides a nominal transmission rate of 100 Mbit\/s. The specified maximum cable distance between a hub and node is 100 m. Network installation should maintain the Ethernet physical-layer requirements for twisted-pair cabling, connector termination, and electromagnetic compatibility.\u003c\/p\u003e\n\u003cp\u003eThe unit can be mounted on either a CPU Rack or Expansion Rack. The allowable number of mounted EtherNet\/IP Units depends on the host controller family, with different limits specified for NJ-series, CJ\/NSJ-series, and CP1H systems.\u003c\/p\u003e\n\u003ch3\u003ePackage Contents \u0026amp; Ordering Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1x Omron CJ1W-EIP21 EtherNet\/IP Unit\u003c\/li\u003e\n\u003cli\u003e1x CJ-series CPU Bus Unit\u003c\/li\u003e\n\u003cli\u003eNetwork cable and external Ethernet connection hardware are not assumed unless specifically included with the supplied unit\u003c\/li\u003e\n\u003cli\u003eMounting and rack hardware are installed as part of the applicable CJ-series rack configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstall the CJ1W-EIP21 only in a compatible CJ-series CPU Rack or Expansion Rack configuration.\u003c\/li\u003e\n\u003cli\u003eVerify the permitted CPU Bus Unit count for the specific controller before installation.\u003c\/li\u003e\n\u003cli\u003eConfirm that the PLC configuration recognizes the installed CPU Bus Unit.\u003c\/li\u003e\n\u003cli\u003eUse 100BASE-TX-compatible twisted-pair Ethernet cabling for the network connection.\u003c\/li\u003e\n\u003cli\u003eKeep the Ethernet cable route separated from high-current motor, inverter, contactor, and switching-power wiring where practical.\u003c\/li\u003e\n\u003cli\u003eMaintain the maximum specified 100 m distance between a hub and the connected node.\u003c\/li\u003e\n\u003cli\u003eUse a suitable Ethernet switch or hub for the required star network topology.\u003c\/li\u003e\n\u003cli\u003eEnsure RJ45 connectors are correctly terminated and mechanically secured.\u003c\/li\u003e\n\u003cli\u003eDo not route communication cables through areas with excessive electromagnetic interference without appropriate cable-management and shielding measures.\u003c\/li\u003e\n\u003cli\u003eGround the PLC rack and associated equipment according to Omron installation requirements and the site's protective-grounding system.\u003c\/li\u003e\n\u003cli\u003eVerify the 5 VDC CPU Bus Unit power budget because the module can consume up to 410 mA.\u003c\/li\u003e\n\u003cli\u003eDo not assume hot-swapping capability unless explicitly permitted by the applicable CJ-series hardware documentation.\u003c\/li\u003e\n\u003cli\u003eConfirm network configuration and node parameters before placing the EtherNet\/IP network into operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What Ethernet speed does the CJ1W-EIP21 support?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The CJ1W-EIP21 provides 100BASE-TX communication at 100 Mbit\/s. Its physical Ethernet interface uses baseband transmission with CSMA\/CD media access.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum transmission distance?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Omron specifies a maximum transmission distance of 100 m between the Ethernet hub and node. Actual installation must also comply with the selected cable and network equipment specifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Where can the CJ1W-EIP21 be mounted?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The unit can be installed on either a CPU Rack or Expansion Rack. The permissible number of CPU Bus Units depends on the host controller system.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How much 5 VDC current does the unit consume?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The specified maximum internal current consumption is 410 mA at 5 VDC. This corresponds to approximately 2.05 W for the CPU Bus Unit power calculation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How many CJ1W-EIP21 units can be installed?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The maximum is system-dependent: 4 units for an NJ-series system, 8 units for CJ\/NSJ systems, and 2 units for a CP1H system, including Expansion Racks where applicable.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What network topology is specified?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The specified transmission path is a star form. A suitable Ethernet hub or switch is therefore used to connect the CJ1W-EIP21 with other network nodes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What are the physical dimensions of the CJ1W-EIP21?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The specified dimensions are 3.1 cm x 6.5 cm x 9.0 cm. The supplied unit weight is approximately 0.094 kg, excluding external packaging.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the CJ1W-EIP21 a Basic I\/O Unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No. The CJ1W-EIP21 is classified as a CJ-series CPU Bus Unit. It communicates with the PLC CPU through the CPU Bus architecture rather than occupying Basic I\/O allocation as a discrete I\/O module.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":47306656678061,"sku":"CJ1W-EIP21","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/CJ1W-EIP21_2.jpg?v=1788155782","url":"https:\/\/www.maxwellplc.com\/products\/omron-cj1w-eip21-cj-series-ethernet-ip-unit","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}