{"product_id":"honeywell-8c-pdisa1-experion-pks-series-8-digital-input-module","title":"Honeywell 8C-PDISA1 Experion PKS Series 8 Digital Input Module","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell 8C-PDISA1\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e8C-PDISA1\u003c\/strong\u003e Digital Input Module, operates as a dedicated hardware component for Sequence of Events (SOE) monitoring within Experion PKS Series 8 \/ C300 Controller networks. The module processes state changes across 32 discrete channels, stamping transition data directly at the hardware layer with a 1 ms resolution limit. This physical architecture records precise temporal transition sequences independently of the main controller scanning sweep cycles.\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\u003e8C-PDISA1\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\u003e0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e5.1 cm x 26.7 cm x 17.8 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e4.2 Watts (Typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Type\u003c\/td\u003e\n\u003ctd\u003eDigital Input (DI) with Sequence of Events (SOE)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Density\u003c\/td\u003e\n\u003ctd\u003e32 Optically Isolated Channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC (Nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTimestamp Resolution\u003c\/td\u003e\n\u003ctd\u003e1 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironmental Rating\u003c\/td\u003e\n\u003ctd\u003eConformal Coated (G3 rating)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Isolation\u003c\/td\u003e\n\u003ctd\u003eGalvanic\/Optical Isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Logic\u003c\/td\u003e\n\u003ctd\u003eOpen and Closed contact logic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Base\u003c\/td\u003e\n\u003ctd\u003eSeries 8 I\/O Termination Assembly (IOTA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control and DCS Instrumentation Features\u003c\/h3\u003e\n\u003cp\u003eThe discrete input channels communicate field states across dedicated optical isolation paths, establishing independent channel-to-channel isolation parameters to suppress ground loops. Field loops interface directly through the 4-20 mA HART loop protocol cabinet architecture, where this module handles the high-density binary tracking. The module hardware maintains precise filtering algorithms for contact debouncing, while the internal logic card handles local voltage monitoring. This digital front-end runs in sync with cold junction compensation (CJC) and analog input sub-buses on adjacent Series 8 hardware.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the module execute hot-swap replacement under active system power?\u003c\/p\u003e\n\u003cp\u003eA: The hardware architecture allows live insertion and extraction on the Series 8 I\/O Termination Assembly (IOTA) without interrupting the backplane bus traffic or forcing the C300 controller into a fault condition.\u003c\/p\u003e\n\u003cp\u003eQ: What is the benefit of the integrated G3-rated conformal coating on this unit?\u003c\/p\u003e\n\u003cp\u003eA: The G3 coating provides chemical and moisture protection across the internal circuit boards, preventing trace degradation from airborne contaminants and high humidity levels in unconditioned remote instrument enclosures.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIOTA Engagement:\u003c\/strong\u003e Align the module pins with the corresponding sockets on the Series 8 I\/O Termination Assembly (IOTA). Push the hardware perpendicularly until the locking side-latches fully engage the mounting plate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Wire Grounding:\u003c\/strong\u003e Land the field cable outer shields exclusively at the designated instrumentation earth bar inside the marshalling cabinet enclosure. Avoid grounding the shield at the field switch housing to eliminate parasitic currents.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Cable Segregation:\u003c\/strong\u003e Route the 24 VDC discrete input field wiring through dedicated wireways separate from parallel high-voltage AC motor control lines or heavy distribution cabling to minimize inductive noise coupling.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":42870832300122,"sku":"8C-PDISA1","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/422.1.jpg?v=1773022683","url":"https:\/\/www.spareoil.com\/products\/honeywell-8c-pdisa1-experion-pks-series-8-digital-input-module","provider":"SpareOil Automation","version":"1.0","type":"link"}