{"product_id":"abb-dp840-3bse028926r1-s800-i-o-pulse-counter-module","title":"ABB DP840 3BSE028926R1 S800 I\/O Pulse Counter Module","description":"\u003cp\u003eConfigured for pulse frequency counting and accumulation tasks in ABB 800xA distributed control networks, the \u003cstrong\u003eABB DP840 3BSE028926R1\u003c\/strong\u003e (\u003cstrong\u003eDP840\u003c\/strong\u003e Pulse Counter Module) provides direct physical\/electrical execution across 8 isolated field input channels.\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\u003eDP840 (3BSE028926R1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eSweden\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.15 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e45 mm x 102 mm x 119 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e4 W maximum power dissipation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e8 pulse counting channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC (19.2 to 32 VDC range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModulebus +5 V Current\u003c\/td\u003e\n\u003ctd\u003e115 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal 24 V Current\u003c\/td\u003e\n\u003ctd\u003e97 mA + external load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eGroupwise isolated from ground (50 V rated insulation, 500 VAC dielectric test)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Field Cable\u003c\/td\u003e\n\u003ctd\u003e200 meters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy Error\u003c\/td\u003e\n\u003ctd\u003eMax absolute error 500 ppm at PRIT = 10 ms (oscillator drift 120 ppm + 5 ppm\/year)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eS800 I\/O MTUs: TU810, TU812, TU814, TU818, TU830, TU833, TU842, TU843, TU844, TU845, TU852, TU854\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication Velocity and I\/O Density Scaling\u003c\/h3\u003e\n\u003cp\u003eThe DP840 module interface maintains deterministic Modulebus communication velocity, allowing high-density pulse train processing without degrading backplane scanning cycles. Integrated hardware counters offload high-frequency pulse calculation from the primary AC 800M controller CPU, enabling scalable I\/O density scaling across redundant S800 I\/O clusters. Firmware flash compatibility ensures consistent channel supervision and process voltage diagnostic reporting through standard ABB 800xA control software libraries.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the DP840 module support redundant configuration in S800 I\/O racks?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the DP840 supports hardware redundancy when paired with redundant Module Terminal Units such as the TU842, TU843, TU844, or TU845.\u003c\/p\u003e\n\u003cp\u003eQ: What is the maximum permitted field cable distance for pulse inputs on this card?\u003c\/p\u003e\n\u003cp\u003eA: The maximum field cable length for input pulse wiring is limited to 200 meters.\u003c\/p\u003e\n\u003cp\u003eQ: How does the internal power distribution behave when supplying power to field sensors?\u003c\/p\u003e\n\u003cp\u003eA: The DP840 provides built-in current-limited sensor power outputs on each input channel to prevent localized short circuits from affecting the backplane logic power supply.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eConfirm the mechanical keying code CF matches the designated slot position on the Module Terminal Unit (MTU) before insertion.\u003c\/li\u003e\n\u003cli\u003eDisconnect Modulebus power and process voltage feeds prior to inserting or removing the DP840 module from the MTU baseplate.\u003c\/li\u003e\n\u003cli\u003eAlign the module housing with the locking guide rails of the MTU and press firmly until the locking mechanism clicks into position.\u003c\/li\u003e\n\u003cli\u003eEnsure signal wiring cable shields are grounded at the field cable termination bar using low-impedance grounding clamps.\u003c\/li\u003e\n\u003cli\u003eVerify process voltage levels (19.2 to 32 VDC) on external terminals before energizing the module.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":53243194540341,"sku":"DP840 3BSE028926R1","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/DP840.png?v=1785744241","url":"https:\/\/www.5gplc.com\/products\/abb-dp840-3bse028926r1-s800-i-o-pulse-counter-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}