{"product_id":"omron-cj1w-drm21-cj-series-devicenet-unit","title":"Omron CJ1W-DRM21 CJ Series DeviceNet Unit","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eIntegrating modular automation networks requires reliable communication interfaces, and the \u003cstrong\u003eCJ1W-DRM21\u003c\/strong\u003e delivers this capability as a dedicated DeviceNet master\/slave module. Engineered specifically for integration with Omron CJ and NJ Series programmable controllers, this module permits seamless communication between the host CPU and distributed field devices. It functions simultaneously as both a master and a slave, allowing for highly flexible network topologies and centralized control configurations.\u003c\/p\u003e\n\n\u003cp\u003eThe unit supports standard DeviceNet physical layers, enabling multi-drop and T-branch cable topologies. It integrates with network configurators to manage complex mapping of I\/O data and message communication. With its compact form factor, the module slots directly onto the CJ\/NJ backplane, drawing power from the system while utilizing an external DC supply for the transceivers to maintain electrical isolation across the fieldbus.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDual-function support operating as a DeviceNet Master, Slave, or both simultaneously.\u003c\/li\u003e\n  \u003cli\u003eFlexible networking capabilities allowing combinations of multi-drop and T-branch physical connection topologies.\u003c\/li\u003e\n  \u003cli\u003eUser-selectable baud rates supporting 125 Kbps, 250 Kbps, and 500 Kbps.\u003c\/li\u003e\n  \u003cli\u003eHigh node capacity supporting up to 64 physical addresses, including Masters, Slaves, and Configuration software.\u003c\/li\u003e\n  \u003cli\u003eExplicit message communication capability with a maximum message length of 542 bytes.\u003c\/li\u003e\n  \u003cli\u003eInternal diagnostic indicators for rapid troubleshooting of network and module status.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDistributed I\/O networks in high-speed manufacturing assembly lines.\u003c\/li\u003e\n  \u003cli\u003ePackaging, sorting, and material handling systems requiring multi-vendor device interoperability.\u003c\/li\u003e\n  \u003cli\u003eProcess control systems utilizing Omron CJ\/NJ series host architectures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n    \u003cth\u003eParameter\u003c\/th\u003e\n    \u003cth\u003eValue\u003c\/th\u003e\n  \u003c\/tr\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 Number\u003c\/td\u003e\n    \u003ctd\u003eCJ1W-DRM21\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eSeries Compatibility\u003c\/td\u003e\n    \u003ctd\u003eCJ Series, NJ Series\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eProtocol\u003c\/td\u003e\n    \u003ctd\u003eDeviceNet\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eBaud Rates\u003c\/td\u003e\n    \u003ctd\u003e125 Kbps, 250 Kbps, 500 Kbps\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eSupported Topologies\u003c\/td\u003e\n    \u003ctd\u003eMulti-drop, T-branch combinations\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eMax Number of Nodes\u003c\/td\u003e\n    \u003ctd\u003e64 (including Masters, Slaves, and Configurator)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eCommunications Power Voltage\u003c\/td\u003e\n    \u003ctd\u003e11 to 25 VDC (supplied externally)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eCommunications Current Consumption\u003c\/td\u003e\n    \u003ctd\u003e18 mA max.\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eInternal Circuit Current Consumption\u003c\/td\u003e\n    \u003ctd\u003e290 mA max. (at 5 VDC from backplane)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eMaximum Message Length\u003c\/td\u003e\n    \u003ctd\u003e542 bytes\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eDimensions (W x H x D)\u003c\/td\u003e\n    \u003ctd\u003e31 mm x 90 mm x 79 mm\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eWeight\u003c\/td\u003e\n    \u003ctd\u003e0.118 kg\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n    \u003cth\u003ePin Color\u003c\/th\u003e\n    \u003cth\u003eSignal Label\u003c\/th\u003e\n    \u003cth\u003eFunction\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eRed\u003c\/td\u003e\n    \u003ctd\u003eV+\u003c\/td\u003e\n    \u003ctd\u003eCommunications Power supply input (+)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eWhite\u003c\/td\u003e\n    \u003ctd\u003eCAN_H\u003c\/td\u003e\n    \u003ctd\u003eSignal line High\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eBare \/ Shield\u003c\/td\u003e\n    \u003ctd\u003eDrain\u003c\/td\u003e\n    \u003ctd\u003eShield \/ Ground connection\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eBlue\u003c\/td\u003e\n    \u003ctd\u003eCAN_L\u003c\/td\u003e\n    \u003ctd\u003eSignal line Low\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eBlack\u003c\/td\u003e\n    \u003ctd\u003eV-\u003c\/td\u003e\n    \u003ctd\u003eCommunications Power supply input (-)\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Lock the module securely to the bus connector of the CJ\/NJ backplane using the top and bottom interlocking sliders. Do not hot-swap the module while the system power is active.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Keep DeviceNet communication lines separate from high-voltage AC power lines to avoid electromagnetic interference. Securely ground the drain wire at a single point.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Sequencing:\u003c\/strong\u003e Apply power to the external DeviceNet communication supply before or simultaneously with the PLC system power supply to prevent initialization faults.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":53077907702123,"sku":"CJ1W-DRM21","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/CJ1W-DRM21-pj5id3jeck0.png?v=1775733507","url":"https:\/\/www.plcprotech.com\/products\/omron-cj1w-drm21-cj-series-devicenet-unit","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}