{"id":34500,"date":"2026-08-07T12:15:39","date_gmt":"2026-08-07T04:15:39","guid":{"rendered":"https:\/\/pxisource.com\/?post_type=product&#038;p=34500"},"modified":"2026-08-27T18:54:20","modified_gmt":"2026-08-27T10:54:20","slug":"pcie-7842","status":"publish","type":"product","link":"https:\/\/pxisource.com\/ru\/product\/pcie-7842\/","title":{"rendered":"PCIe-7842"},"content":{"rendered":"<h3>Product Introduction<\/h3>\n<p>\n\u0417\u0435\u043c\u043b\u044f <strong>NI PCIe-7842R<\/strong>, commonly referenced as <strong>PCIe-7842<\/strong>, is an <strong>R Series Multifunction Reconfigurable I\/O (RIO) device<\/strong> designed for hardware-in-the-loop (HIL) testing, automated test, custom digital protocols, sensor simulation, high-speed control, and FPGA-based measurement applications.\n<\/p>\n<p>\nThe PCIe-7842R combines analog input, analog output, digital I\/O, and a user-programmable <strong>Xilinx Virtex-5 LX50 FPGA<\/strong> on a PCI Express platform. The onboard FPGA allows engineers to implement custom timing, triggering, signal processing, digital communication, and control algorithms directly in hardware.\n<\/p>\n<p>\nWith <strong>8 analog inputs, 8 analog outputs, up to 200 kS\/s analog input sampling, and 96 bidirectional digital I\/O lines<\/strong>, the PCIe-7842R provides a flexible FPGA-based interface for complex mixed-signal test and control systems.\n<\/p>\n<h3>Product Overview<\/h3>\n<p>\n\u0417\u0435\u043c\u043b\u044f <strong>National Instruments PCIe-7842R<\/strong> belongs to the NI R Series Multifunction RIO family.\n<\/p>\n<p>\nA typical system architecture is:\n<\/p>\n<p>\n<strong>Sensors \/ DUT \u2192 PCIe-7842R I\/O \u2192 Virtex-5 FPGA \u2192 PCI Express \u2192 Host Computer<\/strong>\n<\/p>\n<p>\nUnlike conventional multifunction DAQ devices, time-critical measurement and control functions can execute directly on the FPGA without depending on the timing behavior of the host operating system.\n<\/p>\n<p>\nThis architecture makes the PCIe-7842R suitable for deterministic measurement, hardware-in-the-loop simulation, custom interfaces, and high-speed control applications.\n<\/p>\n<h3>Key Features<\/h3>\n<h4>Xilinx Virtex-5 LX50 FPGA<\/h4>\n<p>\nThe PCIe-7842R incorporates a user-programmable <strong>Xilinx Virtex-5 LX50 FPGA<\/strong>.\n<\/p>\n<p>\nThe FPGA can implement application-specific functions such as:\n<\/p>\n<ul>\n<li>Custom hardware triggering<\/li>\n<li>\u0414\u0435\u0442\u0435\u0440\u043c\u0438\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u044e\u0449\u0438\u0435 \u043a\u043e\u043d\u0442\u0443\u0440\u044b<\/li>\n<li>Digital signal processing<\/li>\n<li>\u041f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u0441\u043a\u0438\u0435 \u0446\u0438\u0444\u0440\u043e\u0432\u044b\u0435 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u044b<\/li>\n<li>Sensor simulation<\/li>\n<li>Event detection<\/li>\n<li>Custom timing engines<\/li>\n<li>Hardware interlocks<\/li>\n<li>Parallel processing<\/li>\n<li>Data reduction<\/li>\n<\/ul>\n<h4>8 Analog Input Channels<\/h4>\n<p>\nThe PCIe-7842R provides <strong>8 \u0430\u043d\u0430\u043b\u043e\u0433\u043e\u0432\u044b\u0445 \u0432\u0445\u043e\u0434\u043d\u044b\u0445 \u043a\u0430\u043d\u0430\u043b\u043e\u0432<\/strong> for acquiring voltage signals from sensors, devices under test, and external signal-conditioning hardware.\n<\/p>\n<p>\nTypical analog input applications include:\n<\/p>\n<ul>\n<li>Sensor acquisition<\/li>\n<li>Electronic validation<\/li>\n<li>HIL testing<\/li>\n<li>Control feedback<\/li>\n<li>Automated test<\/li>\n<li>Experimental measurement<\/li>\n<\/ul>\n<h4>Dedicated ADC per Analog Input Channel<\/h4>\n<p>\nEach analog input channel uses a <strong>dedicated analog-to-digital converter<\/strong> rather than sharing a single ADC through a conventional multiplexer.\n<\/p>\n<p>\nThis architecture enables:\n<\/p>\n<ul>\n<li>Simultaneous multi-channel acquisition<\/li>\n<li>Independent channel timing<\/li>\n<li>Custom FPGA-controlled sampling<\/li>\n<li>Deterministic acquisition<\/li>\n<li>Parallel signal processing<\/li>\n<\/ul>\n<h4>200 kS\/s Analog Input Sampling<\/h4>\n<p>\nThe PCIe-7842R supports analog input sampling rates up to <strong>200 \u0442\u044b\u0441. \u043e\u0442\u0441\u0447\u0435\u0442\u043e\u0432\/\u0441 \u043d\u0430 \u043a\u0430\u043d\u0430\u043b<\/strong>.\n<\/p>\n<p>\nCombined with dedicated ADCs, this allows multiple analog signals to be acquired simultaneously while preserving their timing relationships.\n<\/p>\n<h4>16-Bit Analog Input Resolution<\/h4>\n<p>\nThe analog input subsystem provides <strong>16-\u0431\u0438\u0442\u043d\u043e\u0435 \u0440\u0430\u0437\u0440\u0435\u0448\u0435\u043d\u0438\u0435<\/strong> for general measurement and control applications.\n<\/p>\n<p>\nThis combination of resolution, simultaneous sampling, and FPGA-based processing makes the PCIe-7842R useful for applications where deterministic multi-channel measurement is more important than extremely high digitizer sampling rates.\n<\/p>\n<h4>8 Analog Output Channels<\/h4>\n<p>\nThe PCIe-7842R provides <strong>8 \u0430\u043d\u0430\u043b\u043e\u0433\u043e\u0432\u044b\u0445 \u0432\u044b\u0445\u043e\u0434\u043d\u044b\u0445 \u043a\u0430\u043d\u0430\u043b\u043e\u0432<\/strong> for generating programmable voltage signals.\n<\/p>\n<p>\nAnalog outputs can be used for:\n<\/p>\n<ul>\n<li>Sensor simulation<\/li>\n<li>Device stimulus<\/li>\n<li>\u0417\u0430\u043c\u043a\u043d\u0443\u0442\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f<\/li>\n<li>HIL simulation<\/li>\n<li>Analog waveform generation<\/li>\n<li>Automated test<\/li>\n<\/ul>\n<h4>16-Bit Analog Output Resolution<\/h4>\n<p>\nThe analog output channels provide <strong>16-\u0431\u0438\u0442\u043d\u043e\u0435 \u0440\u0430\u0437\u0440\u0435\u0448\u0435\u043d\u0438\u0435<\/strong>, enabling programmable voltage generation for compatible test, simulation, and control applications.\n<\/p>\n<h4>96 Bidirectional Digital I\/O Lines<\/h4>\n<p>\nThe PCIe-7842R provides <strong>96 bidirectional digital I\/O lines<\/strong>.\n<\/p>\n<p>\nThese digital channels can be controlled directly by FPGA logic for deterministic digital operations.\n<\/p>\n<p>\n\u041e\u0431\u043b\u0430\u0441\u0442\u0438 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0432\u043a\u043b\u044e\u0447\u0430\u044e\u0442:\n<\/p>\n<ul>\n<li>DUT control<\/li>\n<li>Status monitoring<\/li>\n<li>Digital stimulus generation<\/li>\n<li>Custom protocol implementation<\/li>\n<li>Hardware triggering<\/li>\n<li>\u0413\u0435\u043d\u0435\u0440\u0430\u0446\u0438\u044f \u0438\u043c\u043f\u0443\u043b\u044c\u0441\u043e\u0432<\/li>\n<li>Digital sensor simulation<\/li>\n<li>Test fixture control<\/li>\n<\/ul>\n<h4>40 MHz Digital I\/O<\/h4>\n<p>\nThe digital I\/O subsystem supports FPGA-controlled operation at rates up to approximately <strong>40 MHz<\/strong>, depending on the application, signal configuration, and FPGA implementation.\n<\/p>\n<p>\nThis enables the PCIe-7842R to implement custom high-speed digital interfaces that are difficult to reproduce using software-timed digital I\/O.\n<\/p>\n<h4>PCI Express Interface<\/h4>\n<p>\nThe PCIe-7842R installs in a compatible <strong>PCI Express<\/strong> slot.\n<\/p>\n<p>\nPCI Express provides communication between the FPGA-based measurement hardware and the host computer for configuration, data transfer, monitoring, and higher-level application processing.\n<\/p>\n<h4>Deterministic FPGA Processing<\/h4>\n<p>\nCritical measurement and control functions can execute directly on the FPGA.\n<\/p>\n<p>\nA simplified architecture is:\n<\/p>\n<p>\n<strong>Input Signal \u2192 FPGA Processing \u2192 Decision Logic \u2192 Output Response<\/strong>\n<\/p>\n<p>\nThis architecture provides predictable hardware-level response without requiring every operation to pass through the host operating system.\n<\/p>\n<h3>Technical Specifications<\/h3>\n<table>\n<tr>\n<th>\u041f\u0430\u0440\u0430\u043c\u0435\u0442\u0440<\/th>\n<th>\u0421\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f<\/th>\n<\/tr>\n<tr>\n<td width=\"280\">Product Type<\/td>\n<td>R Series Multifunction Reconfigurable I\/O Device<\/td>\n<\/tr>\n<tr>\n<td>\u041c\u043e\u0434\u0435\u043b\u044c<\/td>\n<td>PCIe-7842 \/ PCIe-7842R<\/td>\n<\/tr>\n<tr>\n<td>Manufacturer<\/td>\n<td>\u041d\u0430\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u044b\u0435 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u044b<\/td>\n<\/tr>\n<tr>\n<td>\u0428\u0438\u043d\u043d\u044b\u0439 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441<\/td>\n<td>PCI Express<\/td>\n<\/tr>\n<tr>\n<td>\u0424\u041f\u0413\u0410<\/td>\n<td>Xilinx Virtex-5 LX50<\/td>\n<\/tr>\n<tr>\n<td>Analog Input Channels<\/td>\n<td>8<\/td>\n<\/tr>\n<tr>\n<td>Analog Input Resolution<\/td>\n<td>16 Bit<\/td>\n<\/tr>\n<tr>\n<td>Maximum Analog Input Sample Rate<\/td>\n<td>200 kS\/s per Channel<\/td>\n<\/tr>\n<tr>\n<td>Analog Input Architecture<\/td>\n<td>Dedicated ADC per Channel \/ Simultaneous Sampling<\/td>\n<\/tr>\n<tr>\n<td>Analog Output Channels<\/td>\n<td>8<\/td>\n<\/tr>\n<tr>\n<td>Analog Output Resolution<\/td>\n<td>16 Bit<\/td>\n<\/tr>\n<tr>\n<td>\u0426\u0438\u0444\u0440\u043e\u0432\u043e\u0439 \u0432\u0432\u043e\u0434-\u0432\u044b\u0432\u043e\u0434<\/td>\n<td>96 Bidirectional Lines<\/td>\n<\/tr>\n<tr>\n<td>Maximum Digital I\/O Rate<\/td>\n<td>Up to 40 MHz<\/td>\n<\/tr>\n<tr>\n<td>FPGA Programmable<\/td>\n<td>\u0414\u0430<\/td>\n<\/tr>\n<tr>\n<td>Custom Triggering<\/td>\n<td>Supported Through FPGA<\/td>\n<\/tr>\n<tr>\n<td>Parallel Processing<\/td>\n<td>Supported<\/td>\n<\/tr>\n<tr>\n<td>Primary Programming Environment<\/td>\n<td>LabVIEW FPGA<\/td>\n<\/tr>\n<tr>\n<td>Primary Applications<\/td>\n<td>HIL Testing, Sensor Simulation, Custom Protocols, Automated Test and High-Speed Control<\/td>\n<\/tr>\n<\/table>\n<h3>How Does the PCIe-7842R Work?<\/h3>\n<p>\nThe PCIe-7842R combines physical analog and digital I\/O with a programmable FPGA.\n<\/p>\n<p>\nA simplified measurement path is:\n<\/p>\n<p>\n<strong>Physical Signal \u2192 PCIe-7842R I\/O \u2192 Virtex-5 FPGA \u2192 Custom Processing \u2192 PCI Express \u2192 Host Application<\/strong>\n<\/p>\n<p>\nFor deterministic control:\n<\/p>\n<p>\n<strong>Sensor Input \u2192 FPGA \u2192 Control Algorithm \u2192 Analog \/ Digital Output \u2192 DUT<\/strong>\n<\/p>\n<p>\nThis allows measurement, processing, and output response to occur directly in hardware.\n<\/p>\n<h3>What Is an R Series Multifunction RIO Device?<\/h3>\n<p>\nAn <strong>R Series Multifunction RIO device<\/strong> combines analog and digital I\/O with a user-programmable FPGA.\n<\/p>\n<p>\nCompared with conventional multifunction DAQ hardware, R Series devices allow engineers to customize hardware behavior rather than relying only on predefined acquisition and generation functions.\n<\/p>\n<p>\nFPGA customization can include:\n<\/p>\n<ul>\n<li>Custom sampling architectures<\/li>\n<li>Custom trigger conditions<\/li>\n<li>Signal processing<\/li>\n<li>Digital communication protocols<\/li>\n<li>Deterministic control<\/li>\n<li>Hardware state machines<\/li>\n<li>Safety and interlock logic<\/li>\n<\/ul>\n<h3>Simultaneous Analog Input Sampling<\/h3>\n<p>\nThe PCIe-7842R uses dedicated ADC resources for its analog input channels.\n<\/p>\n<p>\nA simplified architecture is:\n<\/p>\n<p>\n<strong>AI0 \u2192 ADC0<\/strong><br \/>\n<strong>AI1 \u2192 ADC1<\/strong><br \/>\n<strong>AI2 \u2192 ADC2<\/strong><br \/>\n<strong>AI3 \u2192 ADC3<\/strong><br \/>\n<strong>&#8230; \u2192 Dedicated ADCs<\/strong>\n<\/p>\n<p>\nThis differs from multiplexed DAQ devices where several channels share one ADC.\n<\/p>\n<p>\nDedicated ADCs make the PCIe-7842R suitable for measurements where channel-to-channel timing relationships must be preserved.\n<\/p>\n<h3>\u0420\u0435\u0430\u043b\u044c\u043d\u043e\u0435 \u0432\u0440\u0435\u043c\u044f \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 FPGA<\/h3>\n<p>\nThe Virtex-5 FPGA can process measurement data before transferring it to the host computer.\n<\/p>\n<p>\nPossible FPGA processing functions include:\n<\/p>\n<ul>\n<li>Digital filtering<\/li>\n<li>Threshold detection<\/li>\n<li>Event detection<\/li>\n<li>Scaling<\/li>\n<li>Control algorithms<\/li>\n<li>Custom trigger evaluation<\/li>\n<li>Signal comparison<\/li>\n<li>Data reduction<\/li>\n<\/ul>\n<p>\nThis can reduce host processing requirements and provide deterministic response.\n<\/p>\n<h3>Parallel FPGA Processing<\/h3>\n<p>\nUnlike sequential software execution, FPGA logic can execute many operations in parallel.\n<\/p>\n<p>\nFor example, the PCIe-7842R can simultaneously:\n<\/p>\n<ul>\n<li>Acquire analog channels<\/li>\n<li>Generate analog outputs<\/li>\n<li>Monitor digital inputs<\/li>\n<li>Control digital outputs<\/li>\n<li>Evaluate trigger conditions<\/li>\n<li>Execute control algorithms<\/li>\n<li>Transfer selected data to the host<\/li>\n<\/ul>\n<h3>Hardware-in-the-Loop Testing<\/h3>\n<p>\nThe PCIe-7842R can be used as an FPGA-based I\/O interface in <strong>hardware-in-the-loop testing<\/strong>.\n<\/p>\n<p>\nA typical HIL architecture is:\n<\/p>\n<p>\n<strong>Simulation Model \u2192 PCIe-7842R FPGA \u2192 Simulated Sensor \/ Actuator I\/O \u2192 Controller \/ DUT<\/strong>\n<\/p>\n<p>\nTypical HIL applications include:\n<\/p>\n<ul>\n<li>\u041f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u042d\u0411\u0423<\/li>\n<li>Embedded controller testing<\/li>\n<li>Industrial control testing<\/li>\n<li>Power electronics testing<\/li>\n<li>Controller fault testing<\/li>\n<li>Prototype validation<\/li>\n<\/ul>\n<h3>Sensor Simulation<\/h3>\n<p>\nThe combination of analog outputs, digital I\/O, and programmable FPGA logic makes the PCIe-7842R suitable for sensor simulation.\n<\/p>\n<p>\nPossible simulated signals include:\n<\/p>\n<ul>\n<li>Analog voltage sensors<\/li>\n<li>Position sensors<\/li>\n<li>Speed sensors<\/li>\n<li>Pulse-output sensors<\/li>\n<li>Encoder-type signals<\/li>\n<li>Digital sensors<\/li>\n<\/ul>\n<p>\nExternal conditioning circuitry may be required when the electrical characteristics of the simulated sensor differ from the native PCIe-7842R I\/O characteristics.\n<\/p>\n<h3>High-Speed Control<\/h3>\n<p>\nThe PCIe-7842R can execute closed-loop control algorithms directly on its FPGA.\n<\/p>\n<p>\nA typical architecture is:\n<\/p>\n<p>\n<strong>Sensor \u2192 Analog Input \u2192 FPGA Control Algorithm \u2192 Analog \/ Digital Output \u2192 Plant<\/strong>\n<\/p>\n<p>\nFPGA implementation can provide deterministic loop timing for applications that cannot tolerate operating-system scheduling delays.\n<\/p>\n<h3>Custom Protocol Communication<\/h3>\n<p>\nThe 96 FPGA-controlled digital I\/O lines can be used to implement custom or proprietary digital communication interfaces.\n<\/p>\n<p>\nApplications can include:\n<\/p>\n<ul>\n<li>Custom serial protocols<\/li>\n<li>Parallel digital interfaces<\/li>\n<li>Legacy equipment communication<\/li>\n<li>Proprietary device protocols<\/li>\n<li>Custom command sequences<\/li>\n<li>FPGA-based protocol emulation<\/li>\n<\/ul>\n<h3>Custom Triggering<\/h3>\n<p>\nThe programmable FPGA allows engineers to develop application-specific trigger conditions.\n<\/p>\n<p>\nTriggers can be based on:\n<\/p>\n<ul>\n<li>Analog thresholds<\/li>\n<li>Digital input states<\/li>\n<li>Multiple simultaneous conditions<\/li>\n<li>Timing relationships<\/li>\n<li>Sequential events<\/li>\n<li>Calculated FPGA conditions<\/li>\n<\/ul>\n<h3>Analog Output Applications<\/h3>\n<p>\nThe eight analog outputs provide substantial flexibility for test and simulation applications.\n<\/p>\n<p>\nA typical stimulus-response architecture is:\n<\/p>\n<p>\n<strong>PCIe-7842R AO \u2192 DUT \u2192 PCIe-7842R AI \u2192 FPGA Processing<\/strong>\n<\/p>\n<p>\nThis allows one device to generate stimulus signals, measure responses, and execute custom FPGA processing.\n<\/p>\n<h3>Digital I\/O Applications<\/h3>\n<p>\nThe 96 bidirectional digital lines provide high channel density for FPGA-based digital control.\n<\/p>\n<p>\n\u0422\u0438\u043f\u0438\u0447\u043d\u044b\u0435 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0432\u043a\u043b\u044e\u0447\u0430\u044e\u0442:\n<\/p>\n<ul>\n<li>DUT configuration<\/li>\n<li>Production fixture control<\/li>\n<li>Relay control<\/li>\n<li>Status monitoring<\/li>\n<li>\u0413\u0435\u043d\u0435\u0440\u0430\u0446\u0438\u044f \u0438\u043c\u043f\u0443\u043b\u044c\u0441\u043e\u0432<\/li>\n<li>Custom protocols<\/li>\n<li>Digital sensor simulation<\/li>\n<li>\u0410\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u0430\u044f \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u0438\u0437\u0430\u0446\u0438\u044f<\/li>\n<\/ul>\n<h3>Automated Test<\/h3>\n<p>\nThe PCIe-7842R can integrate several functions into one automated test interface.\n<\/p>\n<p>\nA typical test sequence can:\n<\/p>\n<ol>\n<li>Configure digital DUT controls.<\/li>\n<li>Generate analog stimulus signals.<\/li>\n<li>Acquire multiple analog responses simultaneously.<\/li>\n<li>Process measurements on the FPGA.<\/li>\n<li>Evaluate custom trigger conditions.<\/li>\n<li>Generate deterministic output responses.<\/li>\n<li>Transfer test data to the host computer.<\/li>\n<li>Determine pass or fail status.<\/li>\n<\/ol>\n<h3>PCIe-7842R vs Conventional Multifunction DAQ<\/h3>\n<table>\n<tr>\n<th>\u0424\u0443\u043d\u043a\u0446\u0438\u044f<\/th>\n<th>PCIe-7842R<\/th>\n<th>Conventional DAQ<\/th>\n<\/tr>\n<tr>\n<td>User-Programmable FPGA<\/td>\n<td><strong>\u0414\u0430<\/strong><\/td>\n<td>Usually No<\/td>\n<\/tr>\n<tr>\n<td>Analog Input Architecture<\/td>\n<td><strong>Dedicated ADCs<\/strong><\/td>\n<td>Often Multiplexed<\/td>\n<\/tr>\n<tr>\n<td>Custom Hardware Timing<\/td>\n<td><strong>\u0414\u0430<\/strong><\/td>\n<td>Fixed Functions<\/td>\n<\/tr>\n<tr>\n<td>Custom Trigger Logic<\/td>\n<td><strong>FPGA Programmable<\/strong><\/td>\n<td>Predefined<\/td>\n<\/tr>\n<tr>\n<td>Deterministic Processing<\/td>\n<td><strong>On FPGA<\/strong><\/td>\n<td>Primarily Host-Based<\/td>\n<\/tr>\n<tr>\n<td>Custom Digital Protocols<\/td>\n<td><strong>Supported<\/strong><\/td>\n<td>\u041e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u043d\u044b\u0439<\/td>\n<\/tr>\n<tr>\n<td>Typical Application<\/td>\n<td>HIL \/ Control \/ Custom I\/O<\/td>\n<td>General Data Acquisition<\/td>\n<\/tr>\n<\/table>\n<h3>PCIe-7842R vs PCIe-7841R<\/h3>\n<p>\nThe PCIe-7842R and PCIe-7841R belong to the same generation of NI R Series multifunction reconfigurable I\/O devices.\n<\/p>\n<p>\nWhen selecting or replacing these devices, compare:\n<\/p>\n<ul>\n<li>FPGA resources<\/li>\n<li>Analog input requirements<\/li>\n<li>Analog output requirements<\/li>\n<li>Digital I\/O requirements<\/li>\n<li>Existing FPGA bitfile<\/li>\n<li>Application timing requirements<\/li>\n<li>LabVIEW FPGA compatibility<\/li>\n<\/ul>\n<p>\nFor an existing automated test or HIL system, the FPGA target and compiled application should be verified before replacing one R Series model with another.\n<\/p>\n<h3>PCIe-7842R vs Newer Kintex-7 R Series<\/h3>\n<p>\nThe PCIe-7842R uses an older <strong>Virtex-5 FPGA architecture<\/strong>, while newer R Series devices use more recent Kintex-7 FPGA technology.\n<\/p>\n<table>\n<tr>\n<th>\u0424\u0443\u043d\u043a\u0446\u0438\u044f<\/th>\n<th>PCIe-7842R<\/th>\n<th>Newer Kintex-7 R Series<\/th>\n<\/tr>\n<tr>\n<td>FPGA Generation<\/td>\n<td>Virtex-5<\/td>\n<td><strong>Kintex-7<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Existing Legacy Code<\/td>\n<td><strong>Strong Fit for Existing Systems<\/strong><\/td>\n<td>May Require Migration<\/td>\n<\/tr>\n<tr>\n<td>FPGA Resources<\/td>\n<td>Legacy Generation<\/td>\n<td><strong>Generally Greater<\/strong><\/td>\n<\/tr>\n<tr>\n<td>New System Development<\/td>\n<td>Legacy Applications<\/td>\n<td><strong>Usually Preferred<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Replacement Considerations<\/td>\n<td>Existing Bitfile \/ Wiring<\/td>\n<td>Software and Hardware Migration<\/td>\n<\/tr>\n<\/table>\n<h3>PCIe-7842R Connectivity<\/h3>\n<p>\nThe PCIe-7842R uses high-density connectors to provide access to its analog and digital I\/O resources.\n<\/p>\n<p>\nWhen integrating or replacing the device, verify:\n<\/p>\n<ul>\n<li>Connector pinout<\/li>\n<li>Existing SHC68-series cables<\/li>\n<li>Terminal blocks<\/li>\n<li>Analog signal wiring<\/li>\n<li>Digital I\/O assignments<\/li>\n<li>Grounding configuration<\/li>\n<li>External signal conditioning<\/li>\n<\/ul>\n<p>\nCable and terminal-block compatibility should be checked against the exact PCIe-7842R hardware configuration before installation.\n<\/p>\n<h3>LabVIEW FPGA Integration<\/h3>\n<p>\nThe PCIe-7842R is designed for use with compatible versions of the <strong>LabVIEW FPGA Module<\/strong>.\n<\/p>\n<p>\nLabVIEW FPGA can be used to implement:\n<\/p>\n<ul>\n<li>Analog acquisition<\/li>\n<li>Analog generation<\/li>\n<li>Digital I\/O control<\/li>\n<li>Custom timing<\/li>\n<li>\u0417\u0430\u043f\u0443\u0441\u043a<\/li>\n<li>Signal processing<\/li>\n<li>\u0417\u0430\u043c\u043a\u043d\u0443\u0442\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f<\/li>\n<li>\u041f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u0441\u043a\u0438\u0435 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u044b \u0441\u0432\u044f\u0437\u0438<\/li>\n<li>Hardware state machines<\/li>\n<\/ul>\n<p>\nBecause the PCIe-7842R is a legacy FPGA platform, compatibility between the hardware, LabVIEW version, LabVIEW FPGA Module, FPGA compilation tools, drivers, and operating system should be verified carefully.\n<\/p>\n<h3>Legacy System Replacement<\/h3>\n<p>\nThe PCIe-7842R is commonly found in legacy automated test, HIL, research, and industrial control systems.\n<\/p>\n<p>\nWhen replacing an existing PCIe-7842R, verify:\n<\/p>\n<ul>\n<li>Exact model and part number<\/li>\n<li>Hardware revision<\/li>\n<li>Virtex-5 LX50 FPGA target<\/li>\n<li>Existing LabVIEW FPGA bitfile<\/li>\n<li>Analog input wiring<\/li>\n<li>Analog output wiring<\/li>\n<li>Digital I\/O assignments<\/li>\n<li>Connector pinout<\/li>\n<li>Cable models<\/li>\n<li>Terminal blocks<\/li>\n<li>PCI Express slot compatibility<\/li>\n<li>LabVIEW version<\/li>\n<li>LabVIEW FPGA version<\/li>\n<li>FPGA compilation environment<\/li>\n<li>Driver support<\/li>\n<li>Operating system compatibility<\/li>\n<\/ul>\n<p>\nA newer R Series device should not automatically be treated as a drop-in replacement because FPGA targets, connectors, timing behavior, drivers, and existing compiled FPGA applications may differ.\n<\/p>\n<h3>How to Choose an R Series Device<\/h3>\n<p>\nBefore selecting the PCIe-7842R or a replacement R Series device, evaluate:\n<\/p>\n<ul>\n<li>Required analog input channels<\/li>\n<li>Required analog output channels<\/li>\n<li>Required sample rate<\/li>\n<li>Required analog resolution<\/li>\n<li>Digital I\/O channel count<\/li>\n<li>FPGA resource requirements<\/li>\n<li>Deterministic control-loop requirements<\/li>\n<li>Custom protocol requirements<\/li>\n<li>Sensor simulation requirements<\/li>\n<li>HIL requirements<\/li>\n<li>Existing FPGA source code or bitfile<\/li>\n<li>PCI Express compatibility<\/li>\n<li>Cable and connector compatibility<\/li>\n<li>Software and driver support<\/li>\n<\/ul>\n<h3>Industries<\/h3>\n<ul>\n<li>Automotive Testing<\/li>\n<li>\u0410\u044d\u0440\u043e\u043a\u043e\u0441\u043c\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u0438 \u043e\u0431\u043e\u0440\u043e\u043d\u043d\u0430\u044f \u043f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u043e\u0441\u0442\u044c<\/li>\n<li>\u041f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0430\u044f \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0437\u0430\u0446\u0438\u044f<\/li>\n<li>Embedded Systems<\/li>\n<li>Power Electronics<\/li>\n<li>Automated Test<\/li>\n<li>Electronic Validation<\/li>\n<li>Research and Development<\/li>\n<li>Control-System Development<\/li>\n<li>Laboratory Automation<\/li>\n<\/ul>\n<h3>Applications<\/h3>\n<h4>Hardware-in-the-Loop Testing<\/h4>\n<p>\nThe PCIe-7842R provides deterministic FPGA-based analog and digital I\/O for HIL systems used to validate controllers and embedded hardware.\n<\/p>\n<h4>Sensor Simulation<\/h4>\n<p>\nEight analog outputs and FPGA-controlled digital I\/O can be used to reproduce compatible sensor signals for DUT and controller validation.\n<\/p>\n<h4>High-Speed Control<\/h4>\n<p>\nClosed-loop control algorithms can execute directly on the FPGA for predictable and repeatable response timing.\n<\/p>\n<h4>Custom Protocol Communication<\/h4>\n<p>\nThe 96 digital I\/O lines can be controlled through custom FPGA logic for proprietary and application-specific communication interfaces.\n<\/p>\n<h4>Automated Test<\/h4>\n<p>\nAnalog acquisition, analog generation, digital I\/O, triggering, and FPGA processing can be combined within a single automated test interface.\n<\/p>\n<h4>Legacy Test System Maintenance<\/h4>\n<p>\nThe PCIe-7842R can be important for maintaining existing systems where software, FPGA bitfiles, cabling, and test fixtures were originally developed around this specific R Series hardware platform.\n<\/p>\n<h3>Recommended Related Products<\/h3>\n<table>\n<tr>\n<td width=\"220\"><strong>PCIe-7842R<\/strong><\/td>\n<td>Virtex-5 LX50 FPGA-based R Series multifunction reconfigurable I\/O device with 8 AI, 8 AO, and 96 DIO.<\/td>\n<\/tr>\n<tr>\n<td><strong>PCIe-7841R<\/strong><\/td>\n<td>Related Virtex-5 generation R Series multifunction RIO device for legacy FPGA measurement and control systems.<\/td>\n<\/tr>\n<tr>\n<td><strong>PCIe-7846<\/strong><\/td>\n<td>Newer Kintex-7 generation R Series multifunction RIO device for FPGA-based HIL, control, and automated test applications.<\/td>\n<\/tr>\n<tr>\n<td><strong>PCIe-7855<\/strong><\/td>\n<td>Kintex-7 R Series option for applications requiring newer FPGA architecture and higher analog acquisition performance.<\/td>\n<\/tr>\n<tr>\n<td><strong>PCIe-7856<\/strong><\/td>\n<td>Higher-resource R Series device for demanding FPGA-based measurement, simulation, and control systems.<\/td>\n<\/tr>\n<\/table>\n<h3>Why Choose PCIe-7842R?<\/h3>\n<ul>\n<li>Xilinx Virtex-5 LX50 FPGA<\/li>\n<li>User-programmable FPGA architecture<\/li>\n<li>8 \u0430\u043d\u0430\u043b\u043e\u0433\u043e\u0432\u044b\u0445 \u0432\u0445\u043e\u0434\u043d\u044b\u0445 \u043a\u0430\u043d\u0430\u043b\u043e\u0432<\/li>\n<li>Dedicated ADC per analog input channel<\/li>\n<li>Up to 200 kS\/s per channel<\/li>\n<li>16-bit analog input resolution<\/li>\n<li>8 \u0430\u043d\u0430\u043b\u043e\u0433\u043e\u0432\u044b\u0445 \u0432\u044b\u0445\u043e\u0434\u043d\u044b\u0445 \u043a\u0430\u043d\u0430\u043b\u043e\u0432<\/li>\n<li>16-bit analog output resolution<\/li>\n<li>96 bidirectional digital I\/O lines<\/li>\n<li>Up to 40 MHz digital operation<\/li>\n<li>Simultaneous analog acquisition<\/li>\n<li>Custom hardware triggering<\/li>\n<li>Deterministic FPGA processing<\/li>\n<li>Parallel hardware processing<\/li>\n<li>Hardware-in-the-loop testing<\/li>\n<li>Sensor simulation<\/li>\n<li>Custom protocol implementation<\/li>\n<li>High-speed control<\/li>\n<li>PCI Express interface<\/li>\n<li>LabVIEW FPGA integration<\/li>\n<\/ul>\n<h3>Frequently Asked Questions<\/h3>\n<h4>What is the NI PCIe-7842R?<\/h4>\n<p>\nThe NI PCIe-7842R is an R Series PCI Express multifunction reconfigurable I\/O device that combines analog input, analog output, digital I\/O, and a user-programmable FPGA for deterministic measurement and control applications.\n<\/p>\n<h4>Is PCIe-7842 the same as PCIe-7842R?<\/h4>\n<p>\nThe model is commonly referenced as both PCIe-7842 and PCIe-7842R. The \u201cR\u201d designation identifies the hardware as part of the NI R Series reconfigurable I\/O family.\n<\/p>\n<h4>What FPGA does PCIe-7842R use?<\/h4>\n<p>\nThe PCIe-7842R uses a <strong>Xilinx Virtex-5 LX50 FPGA<\/strong>.\n<\/p>\n<h4>How many analog inputs does PCIe-7842R have?<\/h4>\n<p>\nThe PCIe-7842R provides <strong>8 \u0430\u043d\u0430\u043b\u043e\u0433\u043e\u0432\u044b\u0445 \u0432\u0445\u043e\u0434\u043d\u044b\u0445 \u043a\u0430\u043d\u0430\u043b\u043e\u0432<\/strong>.\n<\/p>\n<h4>What is the maximum analog input sample rate?<\/h4>\n<p>\nThe PCIe-7842R supports analog input sampling rates up to <strong>200 \u0442\u044b\u0441. \u043e\u0442\u0441\u0447\u0435\u0442\u043e\u0432\/\u0441 \u043d\u0430 \u043a\u0430\u043d\u0430\u043b<\/strong>.\n<\/p>\n<h4>Does PCIe-7842R support simultaneous sampling?<\/h4>\n<p>\nYes. The analog input architecture uses dedicated ADC resources, allowing multiple analog input channels to be acquired simultaneously.\n<\/p>\n<h4>What is the analog input resolution?<\/h4>\n<p>\nThe PCIe-7842R provides <strong>16-bit analog input resolution<\/strong>.\n<\/p>\n<h4>How many analog outputs does PCIe-7842R have?<\/h4>\n<p>\nThe device provides <strong>8 \u0430\u043d\u0430\u043b\u043e\u0433\u043e\u0432\u044b\u0445 \u0432\u044b\u0445\u043e\u0434\u043d\u044b\u0445 \u043a\u0430\u043d\u0430\u043b\u043e\u0432<\/strong> with 16-bit resolution.\n<\/p>\n<h4>How many digital I\/O lines does PCIe-7842R have?<\/h4>\n<p>\nThe PCIe-7842R provides <strong>96 bidirectional digital I\/O lines<\/strong>.\n<\/p>\n<h4>Can PCIe-7842R be used for HIL testing?<\/h4>\n<p>\nYes. Its FPGA-based deterministic I\/O architecture makes it suitable for hardware-in-the-loop testing and controller validation.\n<\/p>\n<h4>Can PCIe-7842R simulate sensors?<\/h4>\n<p>\nYes. The analog outputs and FPGA-controlled digital I\/O can be used for compatible sensor simulation applications. External signal conditioning may be required depending on the electrical characteristics of the simulated sensor.\n<\/p>\n<h4>Can PCIe-7842R implement custom digital protocols?<\/h4>\n<p>\nYes. The programmable FPGA and digital I\/O resources allow engineers to implement custom or proprietary digital communication protocols.\n<\/p>\n<h4>What software is used with PCIe-7842R?<\/h4>\n<p>\nThe PCIe-7842R is designed for use with compatible NI R Series software and the <strong>LabVIEW FPGA Module<\/strong>.\n<\/p>\n<h4>Is PCIe-7842R a conventional DAQ card?<\/h4>\n<p>\nNo. Although it provides analog and digital data acquisition, it is more accurately classified as an <strong>R Series Multifunction Reconfigurable I\/O device<\/strong> because its FPGA allows users to customize hardware-level timing, processing, triggering, and control.\n<\/p>\n<h4>Is PCIe-7842R suitable for legacy system replacement?<\/h4>\n<p>\nYes. The PCIe-7842R is particularly relevant for maintaining existing systems originally designed around this R Series platform. Matching the exact hardware can avoid substantial FPGA code, connector, wiring, driver, and test-fixture migration work.\n<\/p>\n<h4>Can a newer R Series card directly replace PCIe-7842R?<\/h4>\n<p>\nNot necessarily. A newer device may provide higher FPGA performance, but FPGA targets, I\/O characteristics, connector pinouts, timing, software support, and existing compiled bitfiles may differ. Compatibility should be verified before migration.\n<\/p>\n<h4>What should I check before purchasing PCIe-7842R?<\/h4>\n<p>\nVerify the exact model and part number, Virtex-5 FPGA requirement, analog and digital I\/O requirements, 200 kS\/s sampling requirement, connector and cable configuration, existing LabVIEW FPGA source code or bitfile, PCI Express compatibility, NI driver version, LabVIEW FPGA version, FPGA compilation environment, and operating system compatibility.\n<\/p>\n<h3>\u0417\u0430\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435<\/h3>\n<p>\n\u0417\u0435\u043c\u043b\u044f <strong>NI PCIe-7842R R Series Multifunction Reconfigurable I\/O Device<\/strong> combines a Xilinx Virtex-5 LX50 FPGA, eight 16-bit analog inputs with dedicated ADCs and up to 200 kS\/s per-channel sampling, eight 16-bit analog outputs, 96 bidirectional digital I\/O lines, and PCI Express connectivity. Its programmable FPGA architecture makes it suitable for hardware-in-the-loop testing, sensor simulation, custom digital protocols, deterministic high-speed control, automated test, research, and legacy FPGA-based measurement systems.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u041c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u0430\u044f \u0447\u0430\u0441\u0442\u043e\u0442\u0430 \u0434\u0438\u0441\u043a\u0440\u0435\u0442\u0438\u0437\u0430\u0446\u0438\u0438: 200 \u043a\u0412\u044b\u0431\/\u0441<br \/>\n\u0428\u0438\u043d\u0430: PCI Express<br \/>\nMaximum Clock Rate: 40 MHz<br \/>\n\u041a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u0434\u0432\u0443\u043d\u0430\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u043d\u044b\u0445 \u0446\u0438\u0444\u0440\u043e\u0432\u044b\u0445 \u043a\u0430\u043d\u0430\u043b\u043e\u0432: 96<br \/>\n\u0426\u0438\u0444\u0440\u043e\u0432\u044b\u0435 \u0443\u0440\u043e\u0432\u043d\u0438 \u0432\u0432\u043e\u0434\u0430-\u0432\u044b\u0432\u043e\u0434\u0430: 3,3 \u0412, 5 \u0412<br \/>\nFPGA: Virtex-5 LX50<br \/>\n\u0414\u0438\u0430\u043f\u0430\u0437\u043e\u043d \u0432\u0445\u043e\u0434\u043d\u043e\u0433\u043e \u0430\u043d\u0430\u043b\u043e\u0433\u043e\u0432\u043e\u0433\u043e \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f: \u043e\u0442 -10 \u0412 \u0434\u043e 10 \u0412<br \/>\nEnclosed: No<br \/>\n\u0418\u0437\u043c\u0435\u0440\u044f\u0435\u043c\u044b\u0439 \u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0441\u0438\u0433\u043d\u0430\u043b: \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435<\/p>","protected":false},"featured_media":31158,"template":"","meta":{"_acf_changed":false},"product_brand":[18],"product_cat":[674],"product_tag":[],"class_list":["post-34500","product","type-product","status-publish","has-post-thumbnail","product_brand-national-instruments","product_cat-pci-usb","first","instock","shipping-taxable","purchasable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.0 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>NI PCIe-7842 PCIe Multifunction Reconfigurable I\/O Device 781101-01, In Stock | Project Pricing<\/title>\n<meta name=\"description\" content=\"NI PCIe-7842R is an R Series multifunction reconfigurable I\/O device with a Virtex-5 LX50 FPGA, 200 kS\/s analog input, analog output and 96 DIO for HIL and control.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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