{"product_id":"allen-bradley-1746-im16-slc-500-ac-input-module","title":"Allen-Bradley 1746-IM16 SLC 500 AC Input Module","description":"\u003cp\u003eConfigured for 16-channel high-voltage AC discrete signal acquisition in SLC 500 platforms, the \u003cstrong\u003eAllen-Bradley 1746-IM16\u003c\/strong\u003e (\u003cstrong\u003e1746-IM16\u003c\/strong\u003e Digital Input Module) provides direct physical\/electrical execution. It converts incoming 200-240 VAC binary signal transitions from field devices such as pushbuttons, limit switches, and relay contacts into low-voltage logic states passed across the backplane bus.\u003c\/p\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\u003e1746-IM16\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\u003e0.20 lbs (0.09 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eSingle-slot SLC 500 chassis module form factor\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\u003ePowered via SLC 500 chassis backplane bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e16 discrete inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Category\u003c\/td\u003e\n\u003ctd\u003e200-240 VAC nominal (50\/60 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd\u003e170 to 265 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Type\u003c\/td\u003e\n\u003ctd\u003eAC Digital Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Velocity \u0026amp; Deterministic Network Execution\u003c\/h3\u003e\n\u003cp\u003eThe 1746-IM16 incorporates optical isolation barriers between field input terminals and internal backplane logic to safeguard system electronics from external voltage spikes and electrical noise. Designed to maintain high-speed backplane bus communication velocity across SLC 500 chassis layouts, the card converts high-voltage AC inputs into deterministic digital logic data frames. Onboard RC filtering circuits condition incoming AC signals, suppressing contact chatter and transient interference before updating the processor I\/O image table during active deterministic networks execution.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can 120 VAC signals be wired directly to the 1746-IM16 input module?\u003c\/p\u003e\n\u003cp\u003eA: No, the 1746-IM16 is rated specifically for 200-240 VAC nominal inputs (170-265 VAC operating range). Applying 120 VAC will not reliably trigger the input threshold logic.\u003c\/p\u003e\n\u003cp\u003eQ: How does the module indicate the status of individual field input channels?\u003c\/p\u003e\n\u003cp\u003eA: The module features 16 LED status indicators on the front panel, providing real-time visual diagnostic feedback for the ON\/OFF state of each field input channel.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Slot Insertion\u003c\/strong\u003e: Align the module circuit board with the guide rails in any available local or remote SLC 500 chassis slot (except slot 0, reserved for the CPU). Slide the module inward until top and bottom retaining latches lock securely into the chassis frame.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Block Wiring\u003c\/strong\u003e: Connect 200-240 VAC field conductors to the removable terminal block (1746-RT26). Route incoming AC wiring through dedicated wire ducts separated from low-voltage DC and communication cables to avoid noise coupling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding \u0026amp; Safety\u003c\/strong\u003e: Ensure the SLC 500 chassis is bonded to protective earth ground using heavy-gauge copper braid. Turn off main power to the chassis and field circuits before removing or wiring the terminal block assembly.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52689244258584,"sku":"1746-IM16","price":270.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/1746-IM16_Cocoai_34f71830-9742-4b61-ace5-9890bee93341.jpg?v=1789545036","url":"https:\/\/www.innoplcsync.com\/products\/allen-bradley-1746-im16-slc-500-ac-input-module","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}