{"product_id":"abb-dp840-pulse-counter-module-industrial-automation-module","title":"ABB DP840 Pulse Counter Module | Industrial Automation Module","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe ABB DP840 is an 8-channel pulse counter module engineered for high-speed counting and frequency measurement in demanding industrial environments. With each channel capable of handling up to 20 kHz signals, the DP840 delivers precise data acquisition for process control and monitoring applications. Its flexible design supports NAMUR, 12 V, and 24 V transducer signal levels, making it a versatile choice for both single and redundant system architectures.\u003c\/p\u003e\u003cp\u003eBuilt on the S800 I\/O platform, the DP840 integrates seamlessly with ABB's Module Termination Units (MTUs) such as TU810V1, TU812V1, TU814V1, TU830V1, and TU833. This module performs cyclic self-diagnostics and offers advanced on-board diagnostics, ensuring reliable operation and simplified troubleshooting.\u003c\/p\u003e\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 independent channels\u003c\/strong\u003e for pulse counting or frequency measurement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency range:\u003c\/strong\u003e 0.5 Hz to 20 kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterface support:\u003c\/strong\u003e NAMUR, 12 V, and 24 V transducer signals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRedundancy capable\u003c\/strong\u003e for high-availability applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfigurable input filters\u003c\/strong\u003e on each channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16-bit counter\u003c\/strong\u003e for pulse accumulation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced diagnostics\u003c\/strong\u003e including process voltage supervision and loop supervision\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroupwise isolation\u003c\/strong\u003e from ground for noise immunity\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eArticle Number\u003c\/td\u003e\n\u003ctd\u003e3BSE028926R1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003ePulse counter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Specification\u003c\/td\u003e\n\u003ctd\u003e24 V d.c. (19.2 - 32 V d.c.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Measurement\u003c\/td\u003e\n\u003ctd\u003e0.5 Hz - 20 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Field Cable Length\u003c\/td\u003e\n\u003ctd\u003e200 meters (218 yards)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e4 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Consumption (+5 V Modulebus)\u003c\/td\u003e\n\u003ctd\u003e115 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Consumption (+24 V external)\u003c\/td\u003e\n\u003ctd\u003eNAMUR = 56 + 0.5 x external load [mA], 12 V = 89 + 0.7 x external load [mA], 24 V = 97 + external load [mA]\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eGroupwise isolated from ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Insulation Voltage\u003c\/td\u003e\n\u003ctd\u003e50 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric Test Voltage\u003c\/td\u003e\n\u003ctd\u003e500 V a.c.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to +55 °C (+32 to +131 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to +70 °C (-40 to +158 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Class\u003c\/td\u003e\n\u003ctd\u003eIP20 (IEC 60529)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (W x H x D)\u003c\/td\u003e\n\u003ctd\u003e45 mm x 119 mm x 102 mm (1.77” x 4.7” x 4.01”)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.15 kg (0.33 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThe ABB DP840 excels in applications requiring precise speed or position monitoring, such as conveyor belt speed control, motor RPM measurement, and flow totalization. Its ability to read inputs as digital signals also makes it suitable for simple on\/off sensing in discrete manufacturing lines.\u003c\/p\u003e\u003cp\u003eIn redundant configurations, the DP840 ensures uninterrupted operation in critical processes like power generation and chemical processing, where downtime is not an option. The advanced diagnostics help maintenance teams quickly identify channel faults, reducing mean time to repair.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Setup Guidance\u003c\/h2\u003e\u003cp\u003eMount the DP840 onto a compatible S800 MTU (TU810V1, TU812V1, TU814V1, TU830V1, or TU833). Ensure proper keying (code CF) to prevent incorrect insertion. Connect field wiring to the MTU terminals, observing the signal type (NAMUR, 12 V, or 24 V) and polarity. Configure each channel via the control system for pulse count or frequency mode, and set the input filter as needed. After power-up, verify the front LEDs indicate normal operation (Run and Primary if in redundant mode).\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eThe DP840 requires minimal maintenance, but regular inspection of field wiring and connectors is recommended to prevent loose connections. The module's built-in self-diagnostics run continuously, alerting operators to any channel errors via front LEDs and status signals. Operating within the specified temperature range and avoiding high humidity environments will extend the module's service life. The corrosion protection (ISA-S71.04: G3) ensures durability in harsh industrial atmospheres.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThe DP840 is part of the ABB S800 I\/O system and works with a wide range of MTUs, including TU810, TU812, TU814, TU818, TU830, TU833, TU842, TU843, TU844, TU845, TU852, and TU854. It is compatible with ABB's 800xA and Symphony Plus control systems, providing seamless integration into existing automation architectures.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore purchasing the ABB DP840, verify your system's compatibility with the S800 platform and confirm the required MTU model. Check the signal types you need to interface with (NAMUR, 12 V, or 24 V) to ensure the module meets your application. For redundant systems, order two modules and ensure your MTU supports redundancy. When you are ready to buy, PLC Source PRO offers genuine ABB DP840 modules with fast shipping and competitive pricing.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default","offer_id":44444043018339,"sku":"DP840","price":266.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/DP840.jpg?v=1785931508","url":"https:\/\/www.plcsourcepro.com\/products\/abb-dp840-pulse-counter-module-industrial-automation-module","provider":"PLC Source PRO","version":"1.0","type":"link"}