{"product_id":"honeywell-fs-16di-rl-safety-manager-16-channel-relay-isolated-di-module","title":"Honeywell FS-16DI-RL Safety Manager 16-Channel Relay Isolated DI Module","description":"\u003ch2\u003eHoneywell FS-16DI-RL Safety Digital Input Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eHoneywell FS-16DI-RL\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eFS-16DI-RL\u003c\/strong\u003e Digital Input Module (Relay Isolated), operates as a dedicated hardware component for 16-channel discrete signal sensing within Honeywell Experion PKS and Safety Manager platforms. It interfaces directly with volt-free dry contacts and active 24 VDC voltage inputs operating across 18 VDC to 30 VDC logic thresholds. Individual channel relay isolation breaks physical electrical connections between field devices and central system backplanes, preventing electrical noise and high-energy transients from reaching core processors.\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\u003eFS-16DI-RL\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\u003e0.35–0.45 kg (0.5–0.7 kg shipping assembly)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eCompact cabinet installation profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to +60 deg C (-4 deg F to +140 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e0.5–0.7 A @ 24 VDC nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Density\u003c\/td\u003e\n\u003ctd\u003e16 discrete input channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003e7 mA per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Types\u003c\/td\u003e\n\u003ctd\u003eDry contact, Voltage inputs (18–30 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Type\u003c\/td\u003e\n\u003ctd\u003eRelay isolation between channels and backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostics\u003c\/td\u003e\n\u003ctd\u003eOpen-contact detection, short-circuit detection, fault LEDs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Format\u003c\/td\u003e\n\u003ctd\u003eDIN rail or rack-mounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCE, UL, CSA compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel-to-Channel Isolation and HART Loop Connectivity\u003c\/h3\u003e\n\u003cp\u003eEach input circuit incorporates individual relay isolation barriers to establish true galvanic isolation between field terminal points and internal backplane logic. This physical air-gap mechanism prevents ground loops, common-mode noise, and voltage surges from propagating across adjacent channels. Although designed primarily for discrete ON\/OFF state processing, the high noise rejection and stable voltage rail characteristics prevent electromagnetic interference when routed adjacent to 4-20 mA HART loop protocol wiring and analog I\/O carrier buses.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What diagnostic capabilities are supported by the FS-16DI-RL module?\u003c\/p\u003e\n\u003cp\u003eA: The module performs hardware diagnostic checks, including open-contact detection, short-circuit detection, and visual loop status indication via front-panel fault LEDs to prevent undetected failures in safety loops.\u003c\/p\u003e\n\u003cp\u003eQ: Does the FS-16DI-RL support direct connection of volt-free field switches?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The module accommodates dry contact inputs by supplying internal wetting current (~7 mA per channel) to determine open and closed contact states without requiring external power injection.\u003c\/p\u003e\n\u003cp\u003eQ: Can the FS-16DI-RL be hot-swapped during active system operation?\u003c\/p\u003e\n\u003cp\u003eA: Yes. In redundant Safety Manager configurations, a faulty module can be removed and replaced without disconnecting field wiring or interrupting power to adjacent operating modules.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the unit securely onto standard DIN rail or rack frames within control enclosures. Route field signal wiring through dedicated wire trunks, keeping 24 VDC signal lines physically separated from high-voltage AC power lines to avoid inductive noise coupling. Connect field cable shielding directly to the cabinet functional earth bus bar using low-impedance grounding straps. Verify that cabinet ventilation maintains ambient operating temperatures between -20 deg C and +60 deg C.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":43070795546714,"sku":"FS-16DI-RL","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/337.1_c0291cb7-7068-4ce9-81d8-9d7b0c401e74.jpg?v=1773976776","url":"https:\/\/www.spareoil.com\/products\/honeywell-fs-16di-rl-safety-manager-16-channel-relay-isolated-di-module","provider":"SpareOil Automation","version":"1.0","type":"link"}