{"product_id":"1756-l72erom-allen-bradley-controllogix-5570-armor-controllogix-controller","title":"1756-L72EROM Allen-Bradley ControlLogix 5570 Armor ControlLogix Controller","description":"\u003cp\u003eConfigured for controller execution and EtherNet\/IP data exchange in the On-Machine ControlLogix platform, the \u003cstrong\u003eAllen-Bradley 1756-L72EROM\u003c\/strong\u003e (\u003cstrong\u003e1756-L72EROM\u003c\/strong\u003e Armor ControlLogix Controller) provides 4 MB of standard memory, embedded EtherNet\/IP interfaces, and 24 VDC machine power connection. Rockwell Automation identifies it as an Armor ControlLogix 5570 controller with IP67 enclosure protection.\u003c\/p\u003e\n\u003ch3\u003eModel Identification\u003c\/h3\u003e\n\u003cp\u003eThe 1756-L72EROM is a standard Armor ControlLogix controller rather than the safety-rated 1756-L72EROMS. The L72EROM provides 4 MB of standard memory and 0.98 MB of I\/O memory, while the L72EROMS adds 2 MB of safety memory.\u003c\/p\u003e\n\u003cp\u003eThe Armor ControlLogix family is designed for On-Machine installation and integrates controller processing with embedded EtherNet\/IP communication and pass-through DC power connections.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure\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\u003e1756-L72EROM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eControlLogix 5570\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eArmor ControlLogix Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard Memory\u003c\/td\u003e\n\u003ctd\u003e4 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Memory\u003c\/td\u003e\n\u003ctd\u003e0.98 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Total I\/O\u003c\/td\u003e\n\u003ctd\u003e128,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Digital I\/O\u003c\/td\u003e\n\u003ctd\u003e128,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Analog I\/O\u003c\/td\u003e\n\u003ctd\u003e4,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthernet Interface\u003c\/td\u003e\n\u003ctd\u003eEmbedded EtherNet\/IP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthernet Port Type\u003c\/td\u003e\n\u003ctd\u003eM12, Category 5e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthernet Architecture\u003c\/td\u003e\n\u003ctd\u003eDual independent EtherNet\/IP ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSB Interface\u003c\/td\u003e\n\u003ctd\u003eUSB 1.1 Full Speed, 12 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e18-32 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Input Power\u003c\/td\u003e\n\u003ctd\u003e18-32 VDC at 8 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Output Power\u003c\/td\u003e\n\u003ctd\u003e18-32 VDC at 6 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePass-Through Power\u003c\/td\u003e\n\u003ctd\u003eSELV, 18-32 VDC at 8 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Rating\u003c\/td\u003e\n\u003ctd\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eController Redundancy\u003c\/td\u003e\n\u003ctd\u003eNot supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNonvolatile Memory\u003c\/td\u003e\n\u003ctd\u003e1 GB Secure Digital card supplied with controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.35 kg, supplied reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e23.3 x 18.3 x 5.3 cm, supplied reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA, supplied reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003eRockwell Automation specifies 4 MB standard memory, 0.98 MB I\/O memory, 128,000 maximum total and digital I\/O, 4,000 maximum analog I\/O, and 18-32 VDC input operation. The manufacturer also specifies 18-32 VDC at 8 A for system input power and 18-32 VDC at 6 A for external output power.\u003c\/p\u003e\n\u003cp\u003eThe current product data identifies the 1756-L72EROM as an ArmorControlLogix On Machine Controller. The product cut sheet specifies dual EtherNet\/IP ports, USB, a 4-character alpha\/numeric display, and IP67 protection.\u003c\/p\u003e\n\u003ch3\u003eEtherNet\/IP and I\/O Architecture\u003c\/h3\u003e\n\u003cp\u003eThe controller incorporates embedded EtherNet\/IP communication rather than requiring a separate chassis communication module. Rockwell Automation describes the Armor ControlLogix architecture as equivalent to two embedded 1756-EN3TR modules, providing dual independent Ethernet ports and support for Device Level Ring topology.\u003c\/p\u003e\n\u003cp\u003eThe embedded network interface supports EtherNet\/IP control and data traffic directly from the On-Machine controller. The controller does not support controller redundancy, so redundant ControlLogix processor configurations are not applicable to the 1756-L72EROM.\u003c\/p\u003e\n\u003ch3\u003eOn-Machine Power and Physical Integration\u003c\/h3\u003e\n\u003cp\u003eThe controller accepts a nominal 24 VDC supply over an 18-32 VDC input range. System input power is specified at 18-32 VDC at 8 A. Separate output and pass-through power paths are provided for other On-Machine devices.\u003c\/p\u003e\n\u003cp\u003eThe Armor enclosure is intended for machine-level installation rather than a conventional ControlLogix chassis slot. The product cut sheet specifies an IP67 enclosure, while the product profile describes captive screws, a rotating hinge, flexible mounting brackets, and embedded 24 VDC power distribution.\u003c\/p\u003e\n\u003ch3\u003eFirmware and Control Platform\u003c\/h3\u003e\n\u003cp\u003eThe 1756-L72EROM uses the ControlLogix 5570 controller architecture and is programmed within the Logix controller engineering environment. Rockwell Automation lists Relay Ladder, Structured Text, Function Block, and Sequential Function Chart as programming languages for the Armor ControlLogix platform.\u003c\/p\u003e\n\u003cp\u003eFirmware and project compatibility should be checked against the installed controller revision and the Logix Designer software version before downloading a project. Controller memory consumption can change with firmware and software revisions.\u003c\/p\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Allen-Bradley 1756-L72EROM Armor ControlLogix 5570 Controller\u003c\/li\u003e\n\u003cli\u003e1 x Integrated controller housing with embedded EtherNet\/IP interfaces\u003c\/li\u003e\n\u003cli\u003e1 x 1 GB Secure Digital memory card, supplied with the controller according to Rockwell Automation documentation\u003c\/li\u003e\n\u003cli\u003eMounting hardware and field wiring accessories should be selected according to the machine installation design.\u003c\/li\u003e\n\u003cli\u003eNo separate ControlLogix chassis is required for the controller itself because the Armor platform is an On-Machine controller.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation and Wiring Guidelines\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003ePower connection\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eApply a regulated 24 VDC supply within the specified 18-32 VDC input range.\u003c\/li\u003e\n\u003cli\u003eSize the supply wiring for the specified system input current.\u003c\/li\u003e\n\u003cli\u003eVerify polarity before energizing the controller.\u003c\/li\u003e\n\u003cli\u003eCalculate downstream loads when using the controller's external and pass-through power connections.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eEtherNet\/IP connection\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUse suitable industrial-rated M12 Ethernet cabling.\u003c\/li\u003e\n\u003cli\u003eMaintain physical separation between Ethernet wiring and high-energy switching conductors.\u003c\/li\u003e\n\u003cli\u003eCheck connector engagement and cable routing before commissioning.\u003c\/li\u003e\n\u003cli\u003eUse the two independent Ethernet interfaces according to the intended network topology.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMechanical installation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMount the controller using the specified Armor mounting provisions.\u003c\/li\u003e\n\u003cli\u003eMaintain access to the controller status display, USB interface, SD card access, power controls, and connectors.\u003c\/li\u003e\n\u003cli\u003eDo not obstruct the enclosure surfaces required for heat transfer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGrounding and shielding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBond the machine enclosure and associated metallic structures according to the plant grounding design.\u003c\/li\u003e\n\u003cli\u003eTerminate cable shields according to the selected Ethernet cabling and machine grounding scheme.\u003c\/li\u003e\n\u003cli\u003eAvoid unintended shield-current paths through separate equipment grounds.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the standard memory capacity of the 1756-L72EROM?\u003c\/strong\u003e\u003cbr\u003eThe controller provides 4 MB of standard memory and 0.98 MB of I\/O memory. It does not provide the safety memory included in the L72EROMS variant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat supply voltage does the controller require?\u003c\/strong\u003e\u003cbr\u003eThe nominal input voltage is 24 VDC, with an allowed input range of 18-32 VDC. System input power is specified at 8 A.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes the controller use EtherNet\/IP directly?\u003c\/strong\u003e\u003cbr\u003eYes. The Armor ControlLogix architecture provides embedded EtherNet\/IP interfaces equivalent to two integrated 1756-EN3TR modules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs controller redundancy supported?\u003c\/strong\u003e\u003cbr\u003eNo. Rockwell Automation specifies controller redundancy as not supported for Armor ControlLogix controllers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the maximum I\/O capacity?\u003c\/strong\u003e\u003cbr\u003eThe specified maximum is 128,000 total I\/O points, including up to 128,000 digital I\/O and 4,000 analog I\/O.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes the 1756-L72EROM include nonvolatile memory?\u003c\/strong\u003e\u003cbr\u003eYes. Rockwell Automation specifies a 1 GB Secure Digital card supplied with the controller for nonvolatile storage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat enclosure protection does the controller provide?\u003c\/strong\u003e\u003cbr\u003eThe product cut sheet identifies the 1756-L72EROM as an IP67 Armor ControlLogix On-Machine controller.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs the 1756-L72EROM a safety controller?\u003c\/strong\u003e\u003cbr\u003eNo. It is the standard Armor ControlLogix controller. The 1756-L72EROMS is the corresponding safety controller with additional safety memory.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066417860781,"sku":"1756-L72EROM","price":159.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/allen-bradley_1756-l72erom_1.jpg?v=1786979174","url":"https:\/\/www.maxwellplc.com\/ga\/products\/1756-l72erom-allen-bradley-controllogix-5570-armor-controllogix-controller","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}