{"product_id":"allen-bradley-1771-id16-16-point-isolated-digital-input-module","title":"Allen-Bradley 1771-ID16 16-point Isolated Digital Input Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1771-ID16\u003c\/strong\u003e is a \u003cstrong\u003e16-point isolated digital input module\u003c\/strong\u003e from the PLC-5 1771 Universal I\/O family. It accepts \u003cstrong\u003e120V AC\/DC\u003c\/strong\u003e signals with individual channel isolation for enhanced safety and noise immunity in industrial automation environments. Each input features built-in filtering to suppress contact bounce and transient spikes, making it ideal for machine control, safety systems, and process monitoring applications.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Channels:\u003c\/strong\u003e 16 individually isolated digital inputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Category:\u003c\/strong\u003e 120V AC\/DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC Operating Range:\u003c\/strong\u003e 77–138 VAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Operating Range:\u003c\/strong\u003e 105–138 VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput ON Current (min):\u003c\/strong\u003e 6.0 mA @ 74V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput OFF Voltage (max):\u003c\/strong\u003e 45V AC \/ 66V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Delay (ON):\u003c\/strong\u003e Typical 1 ms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Delay (OFF):\u003c\/strong\u003e 9 ms (DC) \/ 9–18 ms (AC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Filtering:\u003c\/strong\u003e Factory-set 9 ms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Current:\u003c\/strong\u003e 75 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Arm:\u003c\/strong\u003e 1771-WN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0–60 °C (32–140 °F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 3.5 × 6.5 × 2.0 in (89 × 165 × 51 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.3 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e UL, CE, CSA, Marine, C-TICK\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual Channel Isolation:\u003c\/strong\u003e Each of the 16 inputs is electrically separated, preventing ground loops and enhancing safety in multi-phase installations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual AC\/DC Compatibility:\u003c\/strong\u003e Handles both AC and DC field signals within the same module, reducing inventory requirements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in Noise Filtering:\u003c\/strong\u003e Factory-set 9 ms filter suppresses contact bounce and transient disturbances for reliable signal detection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRIUP Support:\u003c\/strong\u003e Supports Removal and Insertion Under Power for maintenance without system shutdown\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatus Indicators:\u003c\/strong\u003e LED indicators provide at-a-glance input status for quick diagnostics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConformal Coating:\u003c\/strong\u003e Protects internal electronics from moisture, dust, and chemical contaminants\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMachine control and safety interlocks\u003c\/li\u003e\n\u003cli\u003eLimit switch and proximity sensor monitoring\u003c\/li\u003e\n\u003cli\u003eAnnunciator panels and pilot device interfaces\u003c\/li\u003e\n\u003cli\u003eProcess control discrete signal acquisition\u003c\/li\u003e\n\u003cli\u003eMulti-phase power system monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Preparation:\u003c\/strong\u003e Install the 1771-ID16 into any compatible 1771-series I\/O chassis (e.g., 1771-A1B, 1771-A4B). Ensure the chassis power supply has adequate capacity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Arm Connection:\u003c\/strong\u003e Attach the \u003cstrong\u003e1771-WN wiring arm\u003c\/strong\u003e to the module before inserting it into the chassis. The wiring arm provides screw-terminal connections for field wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eField Wiring:\u003c\/strong\u003e Connect AC or DC field devices to the appropriate input terminals. Verify voltage compatibility (77–138V AC or 105–138V DC) before energizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding:\u003c\/strong\u003e Ensure proper cabinet grounding per NEC and local electrical codes. Use shielded cables for long wire runs in high-noise environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower-up Sequence:\u003c\/strong\u003e Apply chassis power and verify input status LEDs illuminate correctly when field devices are activated.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the 1771-ID16 accept 24V DC signals?\u003c\/strong\u003e\u003cbr\u003e\nA: No. The 1771-ID16 is designed for 120V AC\/DC signals (105–138V DC range). For 24V DC applications, use the 1771-IQ16 or 1771-IBD module.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is the 1771-ID16 compatible with ControlLogix systems?\u003c\/strong\u003e\u003cbr\u003e\nA: No. The 1771-ID16 is designed specifically for PLC-5 systems and 1771 I\/O chassis. It is not natively compatible with ControlLogix or CompactLogix without specialized migration hardware.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the recommended replacement for new installations?\u003c\/strong\u003e\u003cbr\u003e\nA: Rockwell Automation recommends migrating to ControlLogix (1756-IB16I for isolated DC inputs) or CompactLogix platforms for new designs.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I mix AC and DC inputs on the same module?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. The 1771-ID16 accepts both AC and DC signals simultaneously across its 16 isolated channels, provided each input stays within the specified voltage ranges.\u003c\/p\u003e\n\n\u003ch3\u003eSelection Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVerify your field device voltage (AC vs. DC) and ensure it falls within the 77–138V AC or 105–138V DC range\u003c\/li\u003e\n\u003cli\u003eCalculate total backplane current draw including all modules to ensure power supply adequacy\u003c\/li\u003e\n\u003cli\u003eFor high-noise environments, specify the 1771-ID16 over non-isolated alternatives for superior noise immunity\u003c\/li\u003e\n\u003cli\u003eAlways order the 1771-WN wiring arm as it is required for field connections\u003c\/li\u003e\n\u003cli\u003eConsider future migration path to ControlLogix if system expansion is planned\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53803201953976,"sku":"1771-ID16","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1771-ID16.png?v=1784796363","url":"https:\/\/www.globalpetroparts.com\/products\/allen-bradley-1771-id16-16-point-isolated-digital-input-module","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}