{"product_id":"allen-bradley-1756-a13-b-controllogix-chassis","title":"Allen-Bradley 1756-A13\/B ControlLogix Chassis","description":"\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eAllen-Bradley 1756-A13\/B ControlLogix Chassis\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003eConfigured for backplane-based module interconnection in ControlLogix I\/O chassis systems, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1756-A13\/B\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003cstrong\u003e1756-A13\/B\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eControlLogix chassis) provides direct physical\/electrical execution of module-to-module communication and distributed power routing across 13-slot ControlLogix architectures. The chassis implements horizontal back-panel mounting and establishes a shared deterministic backplane for CPU, I\/O, and communication modules within a single integrated rack structure.\u003c\/p\u003e\n\u003cp\u003eWithin Allen-Bradley ControlLogix systems, the chassis distributes multi-rail DC power and supports synchronized backplane signaling across all installed modules, enabling coordinated execution of cyclic control and data exchange operations.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe suffix “\/B” denotes Series revision level of the 1756-A13 chassis platform. “A13” defines a 13-slot ControlLogix backplane chassis configuration. No further factory-defined functional segmentation is assigned.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth class=\"last:pe-10\"\u003eParameter\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\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-A13\/B\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\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.4 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e49.2 × 16.3 × 13.8 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eMax 5.4 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eControlLogix Chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlots\u003c\/td\u003e\n\u003ctd\u003e13 module slots\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eHorizontal back-panel only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Voltage Rails\u003c\/td\u003e\n\u003ctd\u003e1.2 VDC, 3.3 VDC, 5.1 VDC, 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (5.1 VDC)\u003c\/td\u003e\n\u003ctd\u003e15 A chassis max \/ 6 A per slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (3.3 VDC)\u003c\/td\u003e\n\u003ctd\u003e4 A per slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current (24 VDC)\u003c\/td\u003e\n\u003ctd\u003e2.8 A chassis\/slot max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrounding\u003c\/td\u003e\n\u003ctd\u003e8 AWG functional earth \/ 14 AWG protective earth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd\u003eOpen-style chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eControlLogix Backplane Power and Communication Topology\u003c\/h3\u003e\n\u003cp\u003eThe 1756-A13\/B chassis implements a shared backplane architecture where all installed modules interface through a unified electrical and timing bus. The 5.1 VDC and 3.3 VDC rails supply logic-level and ASIC domains, while the 24 VDC rail supports auxiliary module power distribution. Backplane arbitration is handled through deterministic ControlLogix bus scheduling, enabling synchronized data exchange across up to 13 modules without external wiring between slots.\u003c\/p\u003e\n\u003cp\u003eChannel-level communication latency is governed by backplane scan timing, while I\/O and processor modules rely on the same internal bus structure for cyclic execution alignment.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the 1756-A13\/B support module hot-swap during operation?\u003c\/strong\u003e\u003cbr\u003eA: Yes. ControlLogix architecture supports hot-swap insertion and removal. However, module-specific state retention depends on individual firmware behavior and configuration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is backplane power independently supplied per slot?\u003c\/strong\u003e\u003cbr\u003eA: No. The chassis distributes shared backplane rails. Current limits are defined both per slot and for total chassis load across each voltage domain.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Are communication signals isolated between slots?\u003c\/strong\u003e\u003cbr\u003eA: No. Slot-to-slot isolation is not provided by the chassis. Isolation is implemented at module level where required.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eInstall chassis in horizontal orientation only as defined by mechanical design constraints\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEnsure proper 8 AWG functional earth and 14 AWG protective earth bonding before energizing system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVerify backplane connector alignment before module insertion to avoid pin deformation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaintain cabinet clearance for airflow due to open-frame chassis design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDistribute high-power modules across slots to avoid localized backplane rail loading\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConfirm grounding continuity between chassis and cabinet earth bar to reduce noise coupling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43568867082330,"sku":"1756-A13\/B","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1756-A131.jpg?v=1778817328","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1756-a13-b-controllogix-chassis","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}