{"product_id":"8u-pdisa1-honeywell-series-8-digital-input-soe-module","title":"8U-PDISA1 Honeywell Series 8 Digital Input SOE Module","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell 8U-PDISA1\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e8U-PDISA1\u003c\/strong\u003e Digital Input Modules, operates as a dedicated hardware component for high-speed discrete signal acquisition and timestamping within Honeywell Experion PKS platforms.\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\u003e8U-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\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e95 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e32 discrete inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e18 to 30 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSOE Resolution\u003c\/td\u003e\n\u003ctd\u003e1 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScan Time\u003c\/td\u003e\n\u003ctd\u003e20 ms (normal) \/ 5 ms (fast)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e1000 VAC RMS \/ +\/-1000 VDC\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 \u0026amp; Galvanic Signal Conditioning\u003c\/h3\u003e\n\u003cp\u003eThe module utilizes optical and galvanic isolation barriers to provide 1000 VAC RMS or +\/-1000 VDC separation between internal logic circuitry and the 32 discrete field channels. This architecture protects backplane buses against ground potential shifts, common-mode noise, and high-voltage surges. Integrated Sequence of Events (SOE) timestamping logs channel state transitions with 1 ms resolution using dual-scan capabilities (20 ms normal, 5 ms fast) to ensure precise event acquisition across process interlocks and trip circuits.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 8U-PDISA1 support online replacement during active system operation?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the module supports insertion and removal under power (hot-swapping) to facilitate continuous maintenance without disrupting system backplane communication.\u003c\/p\u003e\n\u003cp\u003eQ: How does the 1 ms Sequence of Events (SOE) timestamping operate across input channels?\u003c\/p\u003e\n\u003cp\u003eA: Internal hardware logic captures discrete state changes across all 32 channels and assigns precise 1 ms timestamps locally prior to transmission across the controller network.\u003c\/p\u003e\n\u003cp\u003eQ: What level of electrical isolation is provided between field wiring and system logic?\u003c\/p\u003e\n\u003cp\u003eA: Integrated optical isolation circuits provide up to 1000 VAC RMS or +\/-1000 VDC galvanic separation between field terminals and the backplane.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eConfirm proper ESD grounding procedures before handling the module to protect internal integrated circuits.\u003c\/li\u003e\n\u003cli\u003eAlign the module edge connector with the designated slot on the Experion PKS carrier baseplate and seat firmly until side retainers latch.\u003c\/li\u003e\n\u003cli\u003eRoute 24 VDC discrete signal lines using shielded wiring, maintaining physical separation from power circuits to mitigate EMI\/RFI noise.\u003c\/li\u003e\n\u003cli\u003eVerify field wiring terminations to the terminal blocks before energizing input channels within the 18 to 30 VDC operating window.\u003c\/li\u003e\n\u003cli\u003eEnsure unobstructed airflow through cabinet rack channels to maintain local operating temperatures within 0 deg C to 60 deg C.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":53449511043381,"sku":"8U-PDISA1","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/8C-PDIPA151454471-375.png?v=1788401830","url":"https:\/\/www.5gplc.com\/products\/8u-pdisa1-honeywell-series-8-digital-input-soe-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}