{"product_id":"honeywell-series-8-digital-input-pulse-accumulator-module-8u-pdipa1","title":"Honeywell Series 8 Digital Input Pulse Accumulator Module | 8U-PDIPA1","description":"\u003cp\u003eConfigured for high-speed pulse acquisition and totalization in Honeywell Experion PKS platforms, the \u003cstrong\u003eHoneywell 8U-PDIPA1\u003c\/strong\u003e (\u003cstrong\u003e8U-PDIPA1\u003c\/strong\u003e Digital Input Pulse Accumulator Module) provides direct physical\/electrical execution.\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-PDIPA1\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\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDigital Input Pulse Accumulator Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Type\u003c\/td\u003e\n\u003ctd\u003eDiscrete pulse sequences and counter inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eChannel-to-system electrical isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eRack-mounted \/ IOTA baseplate\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; High-Frequency Pulse Conditioning\u003c\/h3\u003e\n\u003cp\u003eThe 8U-PDIPA1 processes high-speed pulse sequences from flow meters, optical encoders, and pulse-generating field transducers. Dedicated hardware accumulators count incoming state transitions independently of controller scan cycles, preventing missed counts during high-frequency flow or speed measurement tasks. Optical and galvanic channel-to-system electrical isolation prevents transient electrical noise, ground loops, and high-voltage spikes on field wiring from reaching the internal system backplane.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 8U-PDIPA1 rely on the main controller CPU for pulse counting?\u003c\/p\u003e\n\u003cp\u003eA: No, the module features on-board pulse accumulator hardware that totalizes high-speed field pulses independently of controller scan times.\u003c\/p\u003e\n\u003cp\u003eQ: How does channel-to-system isolation protect the system logic?\u003c\/p\u003e\n\u003cp\u003eA: Galvanic separation isolates incoming field signals from internal backplane circuitry, suppressing ground loop currents and field-side voltage transients.\u003c\/p\u003e\n\u003cp\u003eQ: What precautions should be taken regarding cabinet temperature during continuous operation?\u003c\/p\u003e\n\u003cp\u003eA: Adequate clearance must be provided within the rack or carrier assembly to maintain natural air convection and keep ambient temperatures within 0 deg C to 60 deg C.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eRemove operational power from the carrier baseplate or rack slot before inserting or removing the 8U-PDIPA1 module.\u003c\/li\u003e\n\u003cli\u003eWear an ESD grounding strap during module handling to avoid damaging sensitive semiconductor components.\u003c\/li\u003e\n\u003cli\u003eAlign the module with the target slot and apply firm pressure until side latches secure the module to the backplane.\u003c\/li\u003e\n\u003cli\u003eRun pulse input cabling in shielded twisted-pair wire, keeping run paths separated from high-power AC cables to prevent inductive coupling.\u003c\/li\u003e\n\u003cli\u003eGround cable shielding at a single point on the main enclosure grounding bus to prevent circulating ground currents.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":53449495904565,"sku":"8U-PDIPA1","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/8C-PAIMA151454473-175_f83cb1f4-f030-4e25-8b68-11757f59e275.png?v=1788401591","url":"https:\/\/www.5gplc.com\/products\/honeywell-series-8-digital-input-pulse-accumulator-module-8u-pdipa1","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}