{"product_id":"1756-l84e-programmable-controller-allen-bradley-controllogix","title":"1756-L84E Programmable Controller Allen-Bradley ControlLogix","description":"\u003ch3\u003e\u003cb\u003eProduct Overview\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #004080;\"\u003e\u003cb\u003e1756-L84E\u003c\/b\u003e\u003c\/span\u003e represents a high-capacity \u003cspan style=\"color: #004080;\"\u003e\u003cb\u003eControlLogix Controller\u003c\/b\u003e\u003c\/span\u003e engineered by \u003cspan style=\"color: #004080;\"\u003e\u003cb\u003eAllen-Bradley\u003c\/b\u003e\u003c\/span\u003e within the \u003cspan style=\"color: #004080;\"\u003e\u003cb\u003eControlLogix Series\u003c\/b\u003e\u003c\/span\u003e. This advanced \u003cspan style=\"color: #004080;\"\u003e\u003cb\u003eProgrammable Automation Controller\u003c\/b\u003e\u003c\/span\u003e delivers 20 MB of user memory and an embedded gigabit Ethernet interface for demanding multi-axis and large-scale industrial architectures.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eTechnical Specifications Matrix\u003c\/b\u003e\u003c\/h3\u003e\n\u003ctable style=\"width: 99.9647%; height: 274.4px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 33.2561%; height: 19.6px;\"\u003e\u003cb\u003eBrand\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.3806%; height: 19.6px;\"\u003e\u003cspan style=\"color: #004080;\"\u003e\u003cb\u003eAllen-Bradley (Rockwell Automation)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 33.2561%; height: 19.6px;\"\u003e\u003cb\u003eModel \/ Catalog Number\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.3806%; height: 19.6px;\"\u003e\u003cspan style=\"color: #004080;\"\u003e\u003cb\u003e1756-L84E\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 33.2561%; height: 19.6px;\"\u003e\u003cb\u003eProduct Series \u0026amp; Type\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.3806%; height: 19.6px;\"\u003e\n\u003ca href=\"https:\/\/www.plcsparehub.com\/collections\/allen-bradley-1756-controllogix\"\u003eControlLogix\u003c\/a\u003e 5580 \/ PAC Controller Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 33.2561%; height: 19.6px;\"\u003e\u003cb\u003eUser Memory Capacity\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.3806%; height: 19.6px;\"\u003e20 Mega-Bytes user program storage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 33.2561%; height: 39.2px;\"\u003e\u003cb\u003eNon-Volatile Storage Support\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.3806%; height: 39.2px;\"\u003ePre-installed 2 GB Secure Digital (SD) card (1784-SD2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 33.2561%; height: 19.6px;\"\u003e\u003cb\u003eMaximum I\/O Points\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.3806%; height: 19.6px;\"\u003e128,000 Digital I\/O and 4,000 Analog I\/O points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 33.2561%; height: 19.6px;\"\u003e\u003cb\u003eBackplane Current Draw\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.3806%; height: 19.6px;\"\u003e5.0 mA at 1.2 VDC and 1.2 mA at 5.1 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 33.2561%; height: 39.2px;\"\u003e\u003cb\u003ePower \u0026amp; Thermal Dissipation\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.3806%; height: 39.2px;\"\u003e6.2 Watts power output \/ 21.2 BTU per hour thermal output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 33.2561%; height: 39.2px;\"\u003e\u003cb\u003eCommunication Interfaces\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.3806%; height: 39.2px;\"\u003e1 x 10\/100\/1000 Mbps embedded Ethernet port; 1 x USB 2.0 port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 33.2561%; height: 39.2px;\"\u003e\u003cb\u003eOperating Temperature Range\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.3806%; height: 39.2px;\"\u003e0°C to 60°C (32°F to 140°F) with T4 temperature code\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cb\u003eConfiguration and Architecture Breakdown\u003c\/b\u003e\u003c\/h3\u003e\n\u003cdiv\u003e\n\u003cb\u003eChassis Compatibility:\u003c\/b\u003e Installs into any single slot across \u003ca href=\"https:\/\/www.ubestplc.com\/products\/1756-a4-allen-bradley-4-slot-controllogix-chassis\"\u003e1756-A4\u003c\/a\u003e, \u003ca href=\"https:\/\/www.ubestplc.com\/products\/1756-a7-7-slot-controllogix-chassis-allen-bradley\"\u003e1756-A7\u003c\/a\u003e, \u003ca href=\"https:\/\/www.ubestplc.com\/products\/1756-a10-allen-bradley-10-slot-controllogix-chassis\"\u003e1756-A10\u003c\/a\u003e, \u003ca href=\"https:\/\/www.ubestplc.com\/products\/allen-bradley-1756-a13-13-slot-controllogix-chassis\"\u003e1756-A13\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.ubestplc.com\/products\/1756-a17-allen-bradley-17-slot-controllogix-chassis\"\u003e1756-A17\u003c\/a\u003e backplane series\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eEnergy Storage System:\u003c\/b\u003e Built-in capacitor module removes battery replacement requirements and maintenance downtime\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eNetwork Node Capacity:\u003c\/b\u003e Embedded 1 GB Ethernet port supports up to 250 individual network communication nodes\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003ePower Supply Integration:\u003c\/b\u003e Pairs natively with standard 1756-PA\/PB power rails or 1756-PA75R redundant units\u003c\/div\u003e\n\u003ch3\u003e\u003cb\u003eInstallation Guide\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eInsert the \u003cspan style=\"color: #004080;\"\u003e\u003cb\u003e1756-L84E\u003c\/b\u003e\u003c\/span\u003e module firmly into any single-width slot of a powered 1756 ControlLogix chassis. Secure the upper and lower locking latches completely. Connect your plant network to the embedded gigabit Ethernet port and verify normal diagnostic execution through Studio 5000 Logix Designer.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eCommissioning and Maintenance Convenience\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eThe battery-free energy storage module eliminates periodic lithium battery disposal procedures and prevents sudden RAM loss during extended unpowered storage. Unlimited task capacity configured via local event triggers simplifies complex program sequencing during plant commissioning.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eCompatibility Notes\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eThis controller requires Studio 5000 Logix Designer Application Version 3.0 or higher. It interfaces cleanly with motion control drives over EtherNet\/IP and supports legacy bridging modules for ControlNet, DeviceNet, and Data Highway Plus networks.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eCertifications and Warranty Terms\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eManufactured to rigorous industrial and IEC environmental standards. Backed by a full 12-month factory warranty covering component defects and workmanship flaws.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eShipping and Logistics\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eExpedited global fulfillment is managed through premier carriers including FedEx, UPS, and DHL. Stocked automation components ship within 24 to 48 hours to prevent critical site delays.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eApplication Scenarios and Diagnostics\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eDeploys effectively in large automotive production lines, municipal water treatment facilities, high-speed packaging complexes, and synchronized motion control loops. Advanced internal diagnostic routines monitor port isolation voltage boundaries, backplane communication integrity, and thermal thresholds continuously.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eGlobal PLC Spare HUB's Insight\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eOur automation engineering team deployed the \u003cspan style=\"color: #004080;\"\u003e\u003cb\u003e1756-L84E\u003c\/b\u003e\u003c\/span\u003e on a high-speed bottling line coordinating 80 synchronized servo axes over EtherNet\/IP. The built-in 1 GB Ethernet interface eliminated the need for separate communication modules, drastically reducing chassis slot utilization while maintaining zero packet jitter during heavy data logging.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eQ: What specific advantage does the battery-free energy storage module provide over older controllers?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA: It relies on solid-state capacitors to back up volatile RAM during power outages, eliminating periodic battery maintenance and environmental disposal compliance.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: How many communication nodes can the onboard gigabit Ethernet port handle simultaneously?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA: The embedded 1 GB Ethernet port supports a maximum threshold of 250 active communication nodes on the EtherNet\/IP network.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: What precautions should be taken when replacing the 1784-SD2 memory card?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA: Always ensure the controller is powered down or follow proper software-initiated card dismount procedures to prevent non-volatile file corruption.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: Can this controller be installed in any slot of a 1756 chassis?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes, it fits into any standard single-width slot, though placing controller modules in left-side slots is standard practice for optimal backplane master coordination.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: What isolation standards protect the communication ports from electrical transients?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA: The unit provides 50V continuous basic insulation isolation tested at 1000V AC for 1 minute between the USB, Ethernet, and backplane interfaces.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45013809561782,"sku":"1756-L84E","price":147.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/1756-L84E-3.jpg?v=1789373147","url":"https:\/\/www.plcsparehub.com\/products\/1756-l84e-programmable-controller-allen-bradley-controllogix","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}