{"product_id":"honeywell-621-3580r-input-module","title":"Honeywell 621-3580R Input Module","description":"\u003cp\u003eConfigured for discrete signal acquisition in industrial control platforms, the \u003cstrong\u003eHoneywell 621-3580R\u003c\/strong\u003e (\u003cstrong\u003e621-3580R\u003c\/strong\u003e PC Board Input Module) provides direct physical\/electrical execution of 24 VDC signal sensing within the 18-28 VDC operational range.\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\u003e621-3580R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\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\u003e0.99 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard PLC PWB form factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eIndustrial control environment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eBackplane dependent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Type\u003c\/td\u003e\n\u003ctd\u003e24 VDC Discrete Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Range\u003c\/td\u003e\n\u003ctd\u003e18-28 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003e6-15 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Control and Drive Characteristics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane bus communication velocity:\u003c\/strong\u003e The board maintains deterministic timing with the PLC backplane, ensuring that status transitions are captured and processed within the controller scan cycle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfinet \/ EtherNet\/IP deterministic networks:\u003c\/strong\u003e The input circuitry is optimized for high signal fidelity, supporting integration into deterministic network architectures where consistent input response is required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI\/O density scaling:\u003c\/strong\u003e The PCB design facilitates high-density signal monitoring, allowing for efficient integration within rack-mounted PLC configurations to manage distributed 24 VDC field sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirmware flash compatibility:\u003c\/strong\u003e The module is designed for hardware-level compatibility with standard PLC backplane communication protocols, ensuring recognition and initialization during system power-up.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Is the module protected against reverse polarity on the input lines?\u003c\/p\u003e\n\u003cp\u003eA: While internal circuitry is robust, observe correct polarity for all field connections. Reversing polarity on input channels may lead to inactive status signals or potential damage to sensitive input components.\u003c\/p\u003e\n\u003cp\u003eQ: Can this module monitor inputs outside the 18-28 VDC range?\u003c\/p\u003e\n\u003cp\u003eA: No. Operating outside the specified 18-28 VDC range may lead to incorrect signal detection or failure of the input sensing circuitry. Verify field voltage levels before connecting to the module terminals.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Seat the board firmly into the PLC rack, ensuring the backplane connector is fully engaged. Secure the module using the provided mounting hardware to ensure structural stability in high-vibration industrial environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding:\u003c\/strong\u003e Connect the module ground reference to the cabinet's protective earth (PE) bus. A stable ground bond is mandatory to ensure signal integrity and to minimize the impact of common-mode noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Maintain physical separation between 24 VDC signal wiring and high-current power or AC lines to minimize inductive interference. Ensure all wiring is terminated according to the module pinout diagram to prevent wiring errors.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":48157252288702,"sku":"621-3580R","price":560.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-07-13_15-55-13_8f0cc235-428d-4b7b-955a-00af692492d3.png?v=1783935044","url":"https:\/\/www.autooiltech.com\/products\/honeywell-621-3580r-input-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}