{"product_id":"allen-bradley-1756-amxn-controllogix-communication-interface-module","title":"Allen Bradley 1756-AMXN ControlLogix Communication Interface Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1756-AMXN\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1756-AMXN\u003c\/strong\u003e Communication Interface Module, operates as a dedicated hardware component for AutoMax DCS and Remote I\/O network interfacing within ControlLogix control architectures.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eModel Identifier\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSeries \/ Platform\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eCore Function\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003ePort Configuration\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1756-AMXN\u003c\/td\u003e\n\u003ctd\u003eControlLogix 1756\u003c\/td\u003e\n\u003ctd\u003eAutoMax \/ Remote I\/O Communication Interface Module\u003c\/td\u003e\n\u003ctd\u003eSingle DB9 Port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\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\u003e1756-AMXN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley \/ Rockwell Automation\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\u003e0.56 lbs (0.26 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard ControlLogix single-slot module profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eStandard industrial thresholds (0 deg C to 60 deg C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eBackplane current: 650 mA at 5.1 VDC, 75 mA at 24 VDC; Power dissipation: 5 W max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCore Function\u003c\/td\u003e\n\u003ctd\u003eAutoMax DCS \/ RIO Communication Interface Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessor \u0026amp; Memory\u003c\/td\u003e\n\u003ctd\u003e100 MHz IDT MIPS processor, 1 MB RAM, 512 KB shared RAM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface Capacity\u003c\/td\u003e\n\u003ctd\u003eOne DB9 port, up to 55 DCS slave nodes (master mode), up to 250 input words \/ 28 output words (RIO mode), 8 scheduled connections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication Velocity and Firmware Compatibility\u003c\/h3\u003e\n\u003cp\u003eConfigured for high-speed industrial network execution, the module maintains strict backplane bus communication velocity and deterministic data exchange across ControlLogix racks. Firmware flash compatibility and onboard 100 MHz IDT MIPS processing handle AutoMax DCS and Remote I\/O protocol conversions, managing data transfers without introducing communication latency or timing jitter into the control loop.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What operating modes are supported by the 1756-AMXN communication interface module?\u003c\/p\u003e\n\u003cp\u003eA: The module supports multiple operating modes including DCS master, DCS slave, and RIO master to accommodate diverse network topologies and node integration requirements.\u003c\/p\u003e\n\u003cp\u003eQ: Can this communication module be installed in any slot of a ControlLogix chassis?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the 1756-AMXN can be mounted directly into any available slot of a standard ControlLogix chassis backplane.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eEnsure all system rack power feeds are fully isolated and locked out prior to handling or installing the 1756-AMXN module. Align the printed circuit assembly carefully within the designated ControlLogix chassis guide rails, applying steady, uniform pressure to seat the backplane connector securely before tightening the top and bottom retention screws. Terminate external network cables firmly to the DB9 port, ensuring that all communication cable shields are grounded properly to the cabinet earth bar to mitigate electromagnetic interference.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45291616534643,"sku":"1756-AMXN","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-05-21_15-05-35_6bb84615-7cc7-4e31-9834-3bf96e237eb0.png?v=1785383022","url":"https:\/\/www.dcssupplier.com\/products\/allen-bradley-1756-amxn-controllogix-communication-interface-module","provider":"DcsSupplier Limited","version":"1.0","type":"link"}