{"id":30078,"date":"2025-09-25T13:17:33","date_gmt":"2025-09-25T05:17:33","guid":{"rendered":"https:\/\/pxisource.com\/?post_type=product&p=30078"},"modified":"2026-08-05T21:49:44","modified_gmt":"2026-08-05T13:49:44","slug":"%d0%bf%d0%ba%d1%81%d0%b8-6251","status":"publish","type":"product","link":"https:\/\/pxisource.com\/ru\/product\/pxi-6251\/","title":{"rendered":"PXI-6251"},"content":{"rendered":"

Product Introduction<\/h3>\n

\n\u0417\u0435\u043c\u043b\u044f NI PXI-6251<\/strong> is a high-performance multifunction data acquisition (DAQ) module designed for PXI-based automated testing, industrial measurement, laboratory research, and control applications. As part of the NI M Series DAQ family, it combines analog input, analog output, digital I\/O, and counter\/timer functions in a single PXI module.\n<\/p>\n

\nFeaturing 16-bit analog measurement resolution, up to 1.25 MS\/s sampling rate, 16 analog input channels, two analog output channels, 24 digital I\/O lines, and two 32-bit counters, the PXI-6251 provides a flexible and scalable solution for multifunction measurement systems.\n<\/p>\n

Product Overview<\/h3>\n

\n\u0417\u0435\u043c\u043b\u044f PXI-6251<\/strong> is designed for engineers who need accurate and synchronized data acquisition within PXI automated test platforms. It provides multiple I\/O resources required for sensor measurement, signal generation, device control, and timing applications.\n<\/p>\n

\nThe module uses NI M Series technology with onboard timing engines and NI-DAQmx support, enabling precise hardware-timed acquisition and generation tasks. It can be integrated with PXI chassis, PXI controllers, and other modular instruments to build complete automated measurement systems.\n<\/p>\n

Key Features<\/h3>\n

16 Analog Input Channels<\/h4>\n

\nThe PXI-6251 provides high-density analog acquisition capability for multiple sensor and signal measurements.\n<\/p>\n

    \n
  • 16 analog input channels<\/li>\n
  • 16-bit ADC resolution<\/li>\n
  • Up to 1.25 MS\/s sampling rate<\/li>\n
  • Multiple input ranges<\/li>\n
  • Single-ended and differential measurement support<\/li>\n<\/ul>\n

    \nAdvantage:<\/strong> Supports multi-channel voltage measurement for industrial, laboratory, and automated test applications.\n<\/p>\n

    High-Speed Analog Input Performance<\/h4>\n

    \nThe module provides accurate acquisition for dynamic signals.\n<\/p>\n

      \n
    • 1.25 MS\/s maximum aggregate sampling<\/li>\n
    • Hardware-timed acquisition<\/li>\n
    • Analog triggering support<\/li>\n
    • Synchronized measurement<\/li>\n
    • Low-latency data transfer<\/li>\n<\/ul>\n

      \nAdvantage:<\/strong> Enables reliable measurement of changing electrical signals in real-time applications.\n<\/p>\n

      Two Analog Output Channels<\/h4>\n

      \nThe PXI-6251 includes analog output capability for waveform generation and control.\n<\/p>\n

        \n
      • 2 analog output channels<\/li>\n
      • 16-\u0431\u0438\u0442\u043d\u043e\u0435 \u0440\u0430\u0437\u0440\u0435\u0448\u0435\u043d\u0438\u0435 \u0426\u0410\u041f<\/li>\n
      • Hardware-timed waveform generation<\/li>\n
      • Voltage generation<\/li>\n
      • Signal simulation<\/li>\n<\/ul>\n

        \nAdvantage:<\/strong> Allows one PXI module to perform both measurement and stimulus generation.\n<\/p>\n

        24 Digital I\/O Lines<\/h4>\n

        \nIntegrated digital I\/O provides flexible control and communication capability.\n<\/p>\n

          \n
        • 24 programmable digital I\/O lines<\/li>\n
        • TTL-compatible signals<\/li>\n
        • Static digital control<\/li>\n
        • Hardware-timed digital operations<\/li>\n
        • External device interfacing<\/li>\n<\/ul>\n

          \nAdvantage:<\/strong> Simplifies control of relays, triggers, fixtures, and external equipment.\n<\/p>\n

          Two 32-Bit Counter\/Timers<\/h4>\n

          \nThe PXI-6251 provides integrated timing resources for measurement and control applications.\n<\/p>\n

            \n
          • 2 \u00d7 32-bit counters<\/li>\n
          • \u041f\u043e\u0434\u0441\u0447\u0435\u0442 \u0441\u043e\u0431\u044b\u0442\u0438\u0439<\/li>\n
          • Frequency measurement<\/li>\n
          • \u0413\u0435\u043d\u0435\u0440\u0430\u0446\u0438\u044f \u0438\u043c\u043f\u0443\u043b\u044c\u0441\u043e\u0432<\/li>\n
          • Encoder measurement<\/li>\n<\/ul>\n

            \nAdvantage:<\/strong> Eliminates the need for additional timing hardware in many applications.\n<\/p>\n

            NI-STC 2 Timing Technology<\/h4>\n

            \nThe onboard timing engine provides accurate synchronization between measurement functions.\n<\/p>\n

              \n
            • Hardware timing control<\/li>\n
            • \u0421\u0438\u043d\u0445\u0440\u043e\u043d\u0438\u0437\u0430\u0446\u0438\u044f \u0442\u0440\u0438\u0433\u0433\u0435\u0440\u0430<\/li>\n
            • Clock routing<\/li>\n
            • Multi-function synchronization<\/li>\n
            • Deterministic acquisition<\/li>\n<\/ul>\n

              \nAdvantage:<\/strong> Provides reliable timing performance for automated test systems.\n<\/p>\n

              PXI Modular Architecture<\/h4>\n

              \nThe PXI-6251 integrates into scalable PXI-based test systems.\n<\/p>\n

                \n
              • PXI bus interface<\/li>\n
              • Modular instrument architecture<\/li>\n
              • Shared chassis timing<\/li>\n
              • \u0421\u0438\u043d\u0445\u0440\u043e\u043d\u0438\u0437\u0430\u0446\u0438\u044f \u043c\u0435\u0436\u043c\u043e\u0434\u0443\u043b\u044c\u043d\u044b\u0445 \u0431\u043b\u043e\u043a\u043e\u0432<\/li>\n
              • Scalable system expansion<\/li>\n<\/ul>\n

                \nAdvantage:<\/strong> Enables integration with other PXI instruments including switches, digitizers, RF modules, and controllers.\n<\/p>\n

                Technical Specifications<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
                \u041f\u0430\u0440\u0430\u043c\u0435\u0442\u0440<\/th>\n\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435<\/th>\n<\/tr>\n
                Product Type<\/td>\nPXI Multifunction M Series DAQ Module<\/td>\n<\/tr>\n
                Analog Input Channels<\/td>\n16 Channels<\/td>\n<\/tr>\n
                ADC Resolution<\/td>\n16 Bits<\/td>\n<\/tr>\n
                Maximum Sampling Rate<\/td>\n1,25 \u041c\u0421\u043c\/\u0441<\/td>\n<\/tr>\n
                Input Configuration<\/td>\nSingle-Ended \/ Differential<\/td>\n<\/tr>\n
                Analog Output Channels<\/td>\n2 Channels<\/td>\n<\/tr>\n
                DAC Resolution<\/td>\n16 Bits<\/td>\n<\/tr>\n
                \u0426\u0438\u0444\u0440\u043e\u0432\u043e\u0439 \u0432\u0432\u043e\u0434-\u0432\u044b\u0432\u043e\u0434<\/td>\n24 Lines<\/td>\n<\/tr>\n
                Counter\/Timers<\/td>\n2 \u00d7 32-Bit<\/td>\n<\/tr>\n
                Timing Technology<\/td>\nNI-STC 2<\/td>\n<\/tr>\n
                \u0428\u0438\u043d\u043d\u044b\u0439 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441<\/td>\nPXI<\/td>\n<\/tr>\n
                Connector<\/td>\n68-Pin VHDCI<\/td>\n<\/tr>\n
                Driver<\/td>\n\u041d\u0418-DAQmx<\/td>\n<\/tr>\n
                Programming Support<\/td>\nLabVIEW, Python, C\/C++, C#, .NET<\/td>\n<\/tr>\n<\/table>\n

                Software Ecosystem<\/h3>\n

                \nThe PXI-6251 integrates with the National Instruments software ecosystem for automated measurement and test applications.\n<\/p>\n

                  \n
                • \nNI-DAQmx:<\/strong> Provides hardware configuration, acquisition, timing, triggering, and programming APIs.\n<\/li>\n
                • \nLabVIEW:<\/strong> Enables graphical development of automated measurement and control systems.\n<\/li>\n
                • \nNI MAX:<\/strong> Supports device configuration, diagnostics, and hardware management.\n<\/li>\n
                • \nTestStand:<\/strong> Integrates DAQ functionality into automated production test sequences.\n<\/li>\n
                • \nPython, C\/C++, C#, .NET:<\/strong> Supports custom DAQ application development.\n<\/li>\n<\/ul>\n

                  Industries<\/h3>\n
                    \n
                  • Automated Test Equipment<\/li>\n
                  • \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
                  • Electronics Manufacturing<\/li>\n
                  • Automotive Testing<\/li>\n
                  • \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
                  • \u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u0441\u043a\u0438\u0435 \u043b\u0430\u0431\u043e\u0440\u0430\u0442\u043e\u0440\u0438\u0438<\/li>\n
                  • \u0422\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u043e\u043b\u0443\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u0438\u043a\u043e\u0432<\/li>\n
                  • \u042d\u043d\u0435\u0440\u0433\u0435\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b<\/li>\n<\/ul>\n

                    Applications<\/h3>\n

                    \u0410\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u0438\u0441\u043f\u044b\u0442\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b<\/h4>\n

                    \nThe PXI-6251 provides multifunction measurement capability for production and validation testing.\n<\/p>\n

                      \n
                    • Functional testing<\/li>\n
                    • Electronic validation<\/li>\n
                    • Production inspection<\/li>\n
                    • Test fixture control<\/li>\n<\/ul>\n

                      \u0421\u0438\u0441\u0442\u0435\u043c\u044b \u0441\u0431\u043e\u0440\u0430 \u0434\u0430\u043d\u043d\u044b\u0445<\/h4>\n

                      \nThe module supports multi-channel sensor and voltage measurement applications.\n<\/p>\n

                        \n
                      • Sensor monitoring<\/li>\n
                      • Voltage acquisition<\/li>\n
                      • \u0420\u0435\u0433\u0438\u0441\u0442\u0440\u0430\u0446\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445<\/li>\n
                      • Signal analysis<\/li>\n<\/ul>\n

                        Control and Automation<\/h4>\n

                        \nIntegrated analog output and digital I\/O enable closed-loop control applications.\n<\/p>\n

                          \n
                        • Equipment control<\/li>\n
                        • Signal generation<\/li>\n
                        • Relay control<\/li>\n
                        • \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<\/ul>\n

                          Laboratory Research<\/h4>\n

                          \nThe PXI-6251 provides flexible measurement capability for experimental systems.\n<\/p>\n

                            \n
                          • Scientific experiments<\/li>\n
                          • Prototype validation<\/li>\n
                          • Measurement automation<\/li>\n
                          • Research testing<\/li>\n<\/ul>\n

                            Comparison with Similar Products<\/h3>\n\n\n\n\n\n\n
                            \u041c\u043e\u0434\u0435\u043b\u044c<\/th>\n\u041e\u0441\u043d\u043e\u0432\u043d\u043e\u0435 \u0440\u0430\u0437\u043b\u0438\u0447\u0438\u0435<\/th>\nBest Application<\/th>\n<\/tr>\n
                            \nNI PXI-6251<\/strong><\/a>\n<\/td>\n\n16-channel M Series multifunction DAQ with 1.25 MS\/s sampling and analog output.\n<\/td>\n\nGeneral PXI automated measurement\n<\/td>\n<\/tr>\n
                            \nNI PXI-6221<\/strong><\/a>\n<\/td>\n\nLower-speed M Series DAQ module for general-purpose acquisition.\n<\/td>\n\nBasic measurement systems\n<\/td>\n<\/tr>\n
                            \nNI PXI-6259<\/strong><\/a>\n<\/td>\n\nHigher-channel-count M Series DAQ with expanded I\/O resources.\n<\/td>\n\nLarge-scale data acquisition\n<\/td>\n<\/tr>\n
                            \nNI PXIe-6343<\/strong><\/a>\n<\/td>\n\nNewer X Series PXI Express DAQ with improved timing architecture.\n<\/td>\n\nModern PXI Express systems\n<\/td>\n<\/tr>\n<\/table>\n

                            Recommended Related Products<\/h3>\n\n\n\n\n\n
                            \nNI PXI-1045<\/strong><\/a>\n<\/td>\n\n18-slot PXI chassis for large modular test systems.\n<\/td>\n<\/tr>\n
                            \nNI PXIe-8880<\/strong><\/a>\n<\/td>\n\nHigh-performance embedded controller for PXI-based test platforms.\n<\/td>\n<\/tr>\n
                            \nNI PXI-6259<\/strong><\/a>\n<\/td>\n\nHigh-channel-count multifunction DAQ module.\n<\/td>\n<\/tr>\n
                            \nNI PXIe-6343<\/strong><\/a>\n<\/td>\n\nPXI Express multifunction DAQ module with advanced timing features.\n<\/td>\n<\/tr>\n<\/table>\n

                            Why Choose PXI-6251?<\/h3>\n
                              \n
                            • 16-bit high-resolution analog input<\/li>\n
                            • 1.25 MS\/s acquisition speed<\/li>\n
                            • 16 analog input channels<\/li>\n
                            • 2 analog output channels<\/li>\n
                            • 24 digital I\/O lines<\/li>\n
                            • 2 integrated 32-bit counters<\/li>\n
                            • NI-DAQmx software support<\/li>\n
                            • PXI modular system integration<\/li>\n
                            • Suitable for automated test and measurement applications<\/li>\n<\/ul>\n

                              Frequently Asked Questions<\/h3>\n

                              What type of applications is PXI-6251 used for?<\/h4>\n

                              \nThe PXI-6251 is commonly used for automated testing, data acquisition, industrial measurement, electronic validation, and laboratory research applications.\n<\/p>\n

                              What is the difference between PXI-6251 and PXIe-6343?<\/h4>\n

                              \nThe PXI-6251 is an M Series PXI DAQ module, while the PXIe-6343 is a newer X Series PXI Express DAQ module with updated timing architecture and higher system bandwidth.\n<\/p>\n

                              Does PXI-6251 support LabVIEW?<\/h4>\n

                              \nYes. The PXI-6251 is fully supported by NI-DAQmx and integrates with LabVIEW, TestStand, and other NI software environments.\n<\/p>\n

                              \u0417\u0430\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435<\/h3>\n

                              \n\u0417\u0435\u043c\u043b\u044f NI PXI-6251 multifunction DAQ module<\/strong> provides a flexible combination of analog input, analog output, digital I\/O, and counter functionality for PXI automated test systems. With 16-bit resolution, 1.25 MS\/s acquisition, and NI-DAQmx software support, it remains a reliable solution for industrial measurement, laboratory testing, and automated validation applications.<\/p>","protected":false},"excerpt":{"rendered":"

                              Product Introduction The NI PXI-6251 is a high-performance multifunction data acquisition (DAQ) module designed for PXI-based automated testing, industrial measurement,<\/p>","protected":false},"featured_media":31257,"template":"","meta":{"_acf_changed":false},"product_brand":[18],"product_cat":[667],"product_tag":[],"class_list":["post-30078","product","type-product","status-publish","has-post-thumbnail","product_brand-national-instruments","product_cat-pxi-modules","first","instock","shipping-taxable","product-type-simple"],"acf":[],"yoast_head":"\nNI PXI-6251 PXI Multifunction I\/O Module, In Stock | Project Pricing<\/title>\n<meta name=\"description\" content=\"NI PXI-6251 is a multifunction M Series PXI DAQ module featuring 16 analog inputs, 16-bit resolution, 1.25 MS\/s sampling rate, 2 analog outputs, 24 digital I\/O lines, and 2 counters for automated testing.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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