{"product_id":"1772-ln2-allen-bradley-plc-2-series-cpu-module","title":"1772-LN2 Allen-Bradley PLC-2 Series CPU Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1772-LN2\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1772LN2\u003c\/strong\u003e CPU Module, operates as a dedicated hardware component for central logic processing and 1024-word memory execution within PLC-2 system architectures.\u003c\/p\u003e\n\u003ch3\u003eArchitecture Classification \u0026amp; Memory Profile\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Catalog Number\u003c\/strong\u003e: 1772-LN2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlternate Part Number\u003c\/strong\u003e: 1772LN2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Series\u003c\/strong\u003e: PLC-2 Enhanced Platform\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemory Configuration\u003c\/strong\u003e: 1024 Word RAM Internal Capacity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Parameters \u0026amp; Electrical Specifications\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\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\u003e1772-LN2 \/ 1772LN2\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\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.8 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e5.1 x 27.9 x 15.2 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC (+\/-15%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003e1.2 A @ 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Ratings\u003c\/td\u003e\n\u003ctd\u003e2 A @ 30 VDC, 0.5 A @ 120 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGalvanic Isolation\u003c\/td\u003e\n\u003ctd\u003e1500 VAC (I\/O to logic)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-Board I\/O\u003c\/td\u003e\n\u003ctd\u003e16 DC Inputs, 12 Relay Outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpansion Capacity\u003c\/td\u003e\n\u003ctd\u003e1 Local I\/O Chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e28.8 W (1.2 A @ 24 VDC Nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTariff Code\u003c\/td\u003e\n\u003ctd\u003e8537101190\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDeterministic Memory Execution \u0026amp; Expansion Scaling\u003c\/h3\u003e\n\u003cp\u003eThe 1772-LN2 processes sequential ladder logic routines out of its 1024-word RAM array while directly controlling integrated discrete channels. Maintaining stable backplane bus communication velocity across local rack extensions enables real-time synchronization between the central logic processor and attached field devices while ensuring internal firmware flash compatibility during program scans.\u003c\/p\u003e\n\u003ch3\u003ePackage Dispatch Summary\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 1772-LN2 PLC-2 Enhanced CPU Module\u003c\/li\u003e\n\u003cli\u003e1 x Physical Installation Guide Sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePanel Installation \u0026amp; Field Wiring Standards\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Isolation\u003c\/strong\u003e: De-energize the main 24 VDC supply rail prior to inserting or seating the CPU module in the chassis frame.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Wiring Protocol\u003c\/strong\u003e: Wire external discrete field devices to the on-board terminal strip using copper conductors with appropriate strain relief.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Grounding\u003c\/strong\u003e: Ground the chassis frame to the main control enclosure grounding bar using low-impedance copper grounding straps.\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 is the onboard RAM memory capacity of the 1772-LN2 processor?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1772-LN2 contains 1024 words of integrated volatile RAM for ladder logic program and data table storage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What power input specs are required to operate the 1772-LN2 module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe unit requires a 24 VDC input supply (+\/-15%) drawing up to 1.2 A operating current.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What built-in I\/O point density is provided directly on the CPU hardware?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module features 16 discrete DC inputs and 12 relay outputs integrated onto the physical housing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the isolation voltage rating between the field I\/O circuits and core logic?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eGalvanic isolation is factory-rated at 1500 VAC between field-side I\/O circuits and internal logic ground.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What are the contact load ratings for the integrated relay outputs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRelay outputs support continuous switching loads up to 2 A at 30 VDC and 0.5 A at 120 VAC.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the 1772-LN2 CPU module be inserted or removed under live power?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, power to the rack chassis must be turned off before module installation or removal to avoid hardware damage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How many expansion chassis can be connected locally to the 1772-LN2?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe CPU supports direct expansion to 1 local I\/O chassis for additional system channel capacity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What storage temperature range can the unit tolerate during transit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStorage ambient limits range from -40 to +85 deg C in non-condensing environments up to 95% relative humidity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066444566701,"sku":"1772-LN2","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/allen-bradley_1772-ln2.jpg?v=1786542332","url":"https:\/\/www.maxwellplc.com\/ru\/products\/1772-ln2-allen-bradley-plc-2-series-cpu-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}