{"id":34654,"date":"2026-08-07T13:25:52","date_gmt":"2026-08-07T05:25:52","guid":{"rendered":"https:\/\/pxisource.com\/?post_type=product&#038;p=34654"},"modified":"2026-08-27T14:19:03","modified_gmt":"2026-08-27T06:19:03","slug":"pci-6238","status":"publish","type":"product","link":"https:\/\/pxisource.com\/ru\/product\/pci-6238\/","title":{"rendered":"PCI-6238"},"content":{"rendered":"<h3>Product Introduction<\/h3>\n<p>\n\u0417\u0435\u043c\u043b\u044f <strong>NI PCI-6238<\/strong> \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f <strong>isolated M Series multifunction data acquisition (DAQ) device<\/strong> designed for PCI-based industrial measurement, monitoring, control, and automated test systems. It combines isolated analog input, digital input\/output, counters\/timers, hardware timing, and triggering functions in a single PCI DAQ board.\n<\/p>\n<p>\nThe PCI-6238 provides up to <strong>8 single-ended or 4 differential analog input channels<\/strong> \u0441 <strong>16-\u0431\u0438\u0442\u043d\u043e\u0435 \u0440\u0430\u0437\u0440\u0435\u0448\u0435\u043d\u0438\u0435<\/strong> and a maximum sampling rate of <strong>250 kS\/s<\/strong>. It also provides <strong>6 digital input lines, 4 digital output lines, and two 32-bit counters\/timers<\/strong>.\n<\/p>\n<p>\nA key feature of the PCI-6238 is its <strong>bank-isolated I\/O architecture<\/strong>. Isolation helps reduce problems caused by ground loops, ground-potential differences, electrical noise, and transient disturbances, making the PCI-6238 particularly suitable for industrial equipment, machine monitoring, production testing, and other electrically demanding measurement environments.\n<\/p>\n<h3>Product Overview<\/h3>\n<p>\n\u0417\u0435\u043c\u043b\u044f <strong>National Instruments PCI-6238<\/strong> is designed for applications requiring isolated analog measurement together with digital monitoring, digital control, and counter\/timer functionality.\n<\/p>\n<p>\nA typical PCI-6238 measurement architecture is:\n<\/p>\n<p>\n<strong>Sensors \/ Voltage Signals \u2192 PCI-6238 \u2192 PCI Bus \u2192 Host Computer \u2192 NI-DAQmx \/ LabVIEW<\/strong>\n<\/p>\n<p>\nDigital sensors, switches, equipment status signals, and compatible external control devices can also be connected to the digital I\/O resources of the PCI-6238.\n<\/p>\n<h3>Key Features<\/h3>\n<h4>8 Analog Input Channels<\/h4>\n<p>\nThe PCI-6238 provides up to <strong>8 single-ended analog input channels<\/strong> for acquiring voltage signals from sensors, transducers, electronic circuits, industrial equipment, and other compatible measurement sources.\n<\/p>\n<p>\nThe device can also be configured for up to <strong>4 differential analog input channels<\/strong>.\n<\/p>\n<h4>16-Bit Analog Input Resolution<\/h4>\n<p>\nThe PCI-6238 provides <strong>16-bit analog input resolution<\/strong>, offering detailed voltage measurement capability for industrial monitoring, automated test, and laboratory applications.\n<\/p>\n<p>\nThe appropriate input range should be selected according to the expected signal amplitude to make effective use of the available measurement resolution.\n<\/p>\n<h4>Up to 250 kS\/s Sampling<\/h4>\n<p>\nThe PCI-6238 provides analog input sampling rates up to <strong>250 kS\/s<\/strong>, making it suitable for many industrial measurement, data logging, device validation, and automated test applications.\n<\/p>\n<p>\nActual system performance depends on channel configuration, acquisition mode, software, host computer performance, and overall measurement architecture.\n<\/p>\n<h4>Programmable Analog Input Ranges<\/h4>\n<p>\nThe PCI-6238 supports multiple analog input ranges for measuring signals at different voltage levels.\n<\/p>\n<p>\nAvailable ranges include:\n<\/p>\n<ul>\n<li>\u00b10.2 V<\/li>\n<li>\u00b11 V<\/li>\n<li>\u00b15 V<\/li>\n<li>\u00b110 V<\/li>\n<\/ul>\n<p>\nSelecting a range that closely matches the expected signal level can improve effective measurement resolution.\n<\/p>\n<h4>6 Digital Input Lines<\/h4>\n<p>\nThe PCI-6238 provides <strong>6 digital input lines<\/strong> for monitoring compatible digital signals.\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>Equipment status monitoring<\/li>\n<li>Limit switch detection<\/li>\n<li>Machine-state monitoring<\/li>\n<li>External event detection<\/li>\n<li>Digital sensor monitoring<\/li>\n<li>Automated test status inputs<\/li>\n<\/ul>\n<h4>4 Digital Output Lines<\/h4>\n<p>\nThe PCI-6238 provides <strong>4 digital output lines<\/strong> for controlling compatible external devices and logic circuits.\n<\/p>\n<p>\nDigital outputs can be used for:\n<\/p>\n<ul>\n<li>External logic control<\/li>\n<li>Test sequencing<\/li>\n<li>Status indicators<\/li>\n<li>Equipment control signals<\/li>\n<li>Relay control through appropriate interface circuitry<\/li>\n<li>Automated test control<\/li>\n<\/ul>\n<h4>Isolated I\/O Architecture<\/h4>\n<p>\nElectrical isolation is one of the primary reasons to select the PCI-6238 instead of a conventional nonisolated multifunction DAQ device.\n<\/p>\n<p>\nIsolation can help reduce measurement and system problems associated with:\n<\/p>\n<ul>\n<li>Ground loops<\/li>\n<li>Ground-potential differences<\/li>\n<li>Industrial electrical noise<\/li>\n<li>Transient disturbances<\/li>\n<li>Interference from machinery<\/li>\n<li>Multiple interconnected powered systems<\/li>\n<\/ul>\n<h4>Two 32-Bit Counters\/Timers<\/h4>\n<p>\nThe PCI-6238 provides <strong>two 32-bit counters\/timers<\/strong> for timing and digital measurement applications.\n<\/p>\n<p>\nTypical counter\/timer applications include:\n<\/p>\n<ul>\n<li>\u041f\u043e\u0434\u0441\u0447\u0435\u0442 \u0441\u043e\u0431\u044b\u0442\u0438\u0439<\/li>\n<li>Frequency measurement<\/li>\n<li>Period measurement<\/li>\n<li>Pulse-width measurement<\/li>\n<li>Encoder measurement<\/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 timing<\/li>\n<\/ul>\n<h4>PCI Host Interface<\/h4>\n<p>\nThe PCI-6238 installs directly into a compatible conventional <strong>PCI slot<\/strong> in a desktop, industrial, or rackmount computer.\n<\/p>\n<p>\nThis makes it particularly relevant for maintaining existing automated test and industrial measurement systems that continue to use PCI-based computers.\n<\/p>\n<h4>NI-DAQmx Support<\/h4>\n<p>\nThe PCI-6238 is supported through the <strong>\u041d\u0418-DAQmx<\/strong> driver architecture for device configuration, data acquisition, digital I\/O, counters\/timers, hardware timing, and triggering.\n<\/p>\n<p>\nIt can be integrated into LabVIEW and other compatible application development environments.\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>Isolated M Series Multifunction DAQ Device<\/td>\n<\/tr>\n<tr>\n<td>\u041c\u043e\u0434\u0435\u043b\u044c<\/td>\n<td>PCI-6238<\/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<\/td>\n<\/tr>\n<tr>\n<td>Analog Input Channels<\/td>\n<td>8 Single-Ended \/ 4 Differential<\/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>250 kS\/s<\/td>\n<\/tr>\n<tr>\n<td>Analog Input Type<\/td>\n<td>Voltage<\/td>\n<\/tr>\n<tr>\n<td>Input Coupling<\/td>\n<td>DC<\/td>\n<\/tr>\n<tr>\n<td>Analog Input Ranges<\/td>\n<td>\u00b10.2 V, \u00b11 V, \u00b15 V, \u00b110 V<\/td>\n<\/tr>\n<tr>\n<td>Analog Output<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td>Digital Inputs<\/td>\n<td>6<\/td>\n<\/tr>\n<tr>\n<td>Digital Outputs<\/td>\n<td>4<\/td>\n<\/tr>\n<tr>\n<td>Counters\/Timers<\/td>\n<td>2<\/td>\n<\/tr>\n<tr>\n<td>Counter Resolution<\/td>\n<td>32-Bit<\/td>\n<\/tr>\n<tr>\n<td>\u0418\u0437\u043e\u043b\u044f\u0446\u0438\u044f<\/td>\n<td>Bank Isolation<\/td>\n<\/tr>\n<tr>\n<td>I\/O Connector<\/td>\n<td>37-\u043a\u043e\u043d\u0442\u0430\u043a\u0442\u043d\u044b\u0439 D-SUB<\/td>\n<\/tr>\n<tr>\n<td>Driver<\/td>\n<td>\u041d\u0418-DAQmx<\/td>\n<\/tr>\n<tr>\n<td>Product Family<\/td>\n<td>NI M Series Isolated DAQ<\/td>\n<\/tr>\n<tr>\n<td>Primary Applications<\/td>\n<td>Industrial Measurement, Monitoring, Automated Test and Control<\/td>\n<\/tr>\n<\/table>\n<h3>How Does the PCI-6238 Work?<\/h3>\n<p>\nThe PCI-6238 provides an isolated interface between external analog and digital signals and the PCI bus of the host computer.\n<\/p>\n<p>\nA simplified analog measurement path is:\n<\/p>\n<p>\n<strong>Sensor \/ Voltage Signal \u2192 Isolated Input Circuitry \u2192 Multiplexer \u2192 16-Bit ADC \u2192 PCI-6238 \u2192 PCI Bus \u2192 Host Application<\/strong>\n<\/p>\n<p>\nThe host application can simultaneously coordinate analog acquisition, digital input monitoring, digital output control, and counter\/timer operations according to the requirements of the measurement system.\n<\/p>\n<h3>What Is an Isolated DAQ Device?<\/h3>\n<p>\nAn isolated DAQ device provides electrical separation between portions of the external I\/O circuitry and the computer-side measurement system.\n<\/p>\n<p>\nThis is particularly useful when signals originate from equipment that does not share the same electrical ground as the host computer.\n<\/p>\n<p>\nIsolation can help improve measurement-system robustness in applications involving:\n<\/p>\n<ul>\n<li>\u041f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u043e\u0435 \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0435<\/li>\n<li>Production equipment<\/li>\n<li>Motors and drives<\/li>\n<li>Power electronics<\/li>\n<li>Remote sensors<\/li>\n<li>\u0410\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0435 \u0438\u0441\u043f\u044b\u0442\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0435 \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0435<\/li>\n<li>\u0410\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0437\u0430\u0446\u0438\u044f \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0430<\/li>\n<\/ul>\n<h3>Why Use Bank Isolation?<\/h3>\n<p>\nGround-potential differences can create unwanted current paths when measurement equipment and external devices are directly connected.\n<\/p>\n<p>\nThese ground loops can introduce measurement errors, electrical noise, and other system problems.\n<\/p>\n<p>\nThe bank-isolated architecture of the PCI-6238 makes it better suited than many conventional nonisolated DAQ devices for industrial environments where electrical separation is important.\n<\/p>\n<h3>Analog Input Measurement<\/h3>\n<p>\nThe PCI-6238 can acquire voltage signals from compatible sensors, transducers, test points, and industrial equipment.\n<\/p>\n<p>\nThe analog input architecture can be configured according to the required channel count and measurement method.\n<\/p>\n<h4>Single-Ended Measurements<\/h4>\n<p>\nSingle-ended configuration provides up to <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> and is useful when maximum channel count is required and the signal grounding architecture is appropriate.\n<\/p>\n<h4>Differential Measurements<\/h4>\n<p>\nDifferential configuration provides up to <strong>4 analog input channels<\/strong>.\n<\/p>\n<p>\nDifferential measurement can provide improved rejection of common-mode interference and may be preferred in electrically noisy measurement environments.\n<\/p>\n<h3>Sensor Measurement<\/h3>\n<p>\nThe PCI-6238 can acquire compatible voltage-output sensors directly or measure sensors through appropriate external signal-conditioning hardware.\n<\/p>\n<p>\nApplications can include:\n<\/p>\n<ul>\n<li>Pressure monitoring<\/li>\n<li>Position measurement<\/li>\n<li>Force measurement<\/li>\n<li>Process sensor acquisition<\/li>\n<li>Voltage monitoring<\/li>\n<li>Industrial equipment monitoring<\/li>\n<\/ul>\n<p>\nSensors requiring excitation, amplification, filtering, current measurement, bridge completion, or specialized conditioning require appropriate external circuitry or signal-conditioning hardware.\n<\/p>\n<h3>Industrial Data Acquisition<\/h3>\n<p>\nThe PCI-6238 is particularly suitable for industrial data acquisition systems where isolation is more important than analog output functionality.\n<\/p>\n<p>\nTypical industrial applications include:\n<\/p>\n<ul>\n<li>Machine monitoring<\/li>\n<li>Process monitoring<\/li>\n<li>Production-line measurement<\/li>\n<li>Equipment status acquisition<\/li>\n<li>Industrial sensor monitoring<\/li>\n<li>Factory test systems<\/li>\n<li>Electromechanical equipment testing<\/li>\n<\/ul>\n<h3>Machine Monitoring<\/h3>\n<p>\nIndustrial machines can generate electrical noise from motors, relays, contactors, variable-frequency drives, and switching power electronics.\n<\/p>\n<p>\nThe isolated architecture of the PCI-6238 makes it useful for compatible machine monitoring systems where analog measurements and digital status signals must be acquired by a computer.\n<\/p>\n<h3>\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<\/h3>\n<p>\nThe PCI-6238 can be incorporated into automated test systems that require isolated voltage measurement, digital control, and timing functions.\n<\/p>\n<p>\nA typical test sequence can:\n<\/p>\n<ol>\n<li>Configure analog input channels.<\/li>\n<li>Configure digital inputs and outputs.<\/li>\n<li>Initialize counters\/timers.<\/li>\n<li>Control the device under test through digital outputs.<\/li>\n<li>Acquire analog measurements.<\/li>\n<li>Monitor digital status signals.<\/li>\n<li>Perform timing or frequency measurements.<\/li>\n<li>Evaluate pass\/fail limits.<\/li>\n<li>Store the test results.<\/li>\n<\/ol>\n<h3>Production Test<\/h3>\n<p>\nProduction test stations can use the PCI-6238 for isolated measurement and digital control operations.\n<\/p>\n<p>\nIts combination of analog input, digital I\/O, counters, hardware timing, and isolation makes it suitable for functional testing of industrial and electronic products.\n<\/p>\n<h3>Motor and Drive Testing<\/h3>\n<p>\nMotors, drives, actuators, and electromechanical systems often operate in electrically noisy environments.\n<\/p>\n<p>\nThe PCI-6238 can acquire compatible voltage and digital signals in motor and drive test applications, provided that all signals remain within the specified input and isolation limits of the device.\n<\/p>\n<h3>Power Electronics Testing<\/h3>\n<p>\nPower electronics applications can involve significant ground-potential differences and switching noise.\n<\/p>\n<p>\nThe isolated architecture of the PCI-6238 can be useful for compatible low-level measurement and control signals in power electronics test systems.\n<\/p>\n<p>\nThe PCI-6238 should not be connected directly to signals that exceed its specified input, common-mode, working-voltage, or isolation limits. Appropriate probes, attenuation, isolation, or signal conditioning must be used when required.\n<\/p>\n<h3>PCI-6238 vs PCI-6230<\/h3>\n<p>\nThe PCI-6238 and PCI-6230 are closely related isolated M Series DAQ devices, but they target different I\/O requirements.\n<\/p>\n<table>\n<tr>\n<th>\u0424\u0443\u043d\u043a\u0446\u0438\u044f<\/th>\n<th>PCI-6238<\/th>\n<th>PCI-6230<\/th>\n<\/tr>\n<tr>\n<td>Bus<\/td>\n<td>PCI<\/td>\n<td>PCI<\/td>\n<\/tr>\n<tr>\n<td>Analog Inputs<\/td>\n<td>8 SE \/ 4 Differential<\/td>\n<td>8 SE \/ 4 Differential<\/td>\n<\/tr>\n<tr>\n<td>AI Resolution<\/td>\n<td>16-Bit<\/td>\n<td>16-Bit<\/td>\n<\/tr>\n<tr>\n<td>Maximum AI Sample Rate<\/td>\n<td>250 kS\/s<\/td>\n<td>250 kS\/s<\/td>\n<\/tr>\n<tr>\n<td>Analog Outputs<\/td>\n<td><strong>No<\/strong><\/td>\n<td><strong>4<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Digital Inputs<\/td>\n<td>6<\/td>\n<td>6<\/td>\n<\/tr>\n<tr>\n<td>Digital Outputs<\/td>\n<td>4<\/td>\n<td>4<\/td>\n<\/tr>\n<tr>\n<td>Counters\/Timers<\/td>\n<td>2<\/td>\n<td>2<\/td>\n<\/tr>\n<tr>\n<td>\u0418\u0437\u043e\u043b\u044f\u0446\u0438\u044f<\/td>\n<td>Bank Isolation<\/td>\n<td>Bank Isolation<\/td>\n<\/tr>\n<tr>\n<td>Best For<\/td>\n<td><strong>Isolated Acquisition and Digital I\/O<\/strong><\/td>\n<td>Isolated Acquisition with Analog Generation<\/td>\n<\/tr>\n<\/table>\n<p>\nThe most important purchasing distinction is the analog output requirement. Choose the PCI-6230 when analog outputs are required. The PCI-6238 is more appropriate when the system primarily requires isolated analog acquisition and digital I\/O.\n<\/p>\n<h3>PCI-6238 vs PXI-6238<\/h3>\n<p>\nThe PCI-6238 and PXI-6238 provide closely related isolated M Series measurement capabilities but use different system platforms.\n<\/p>\n<table>\n<tr>\n<th>\u0424\u0443\u043d\u043a\u0446\u0438\u044f<\/th>\n<th>PCI-6238<\/th>\n<th>PXI-6238<\/th>\n<\/tr>\n<tr>\n<td>Platform<\/td>\n<td><strong>PCI<\/strong><\/td>\n<td>PXI<\/td>\n<\/tr>\n<tr>\n<td>Analog Inputs<\/td>\n<td>8 SE \/ 4 Differential<\/td>\n<td>8 SE \/ 4 Differential<\/td>\n<\/tr>\n<tr>\n<td>AI Resolution<\/td>\n<td>16-Bit<\/td>\n<td>16-Bit<\/td>\n<\/tr>\n<tr>\n<td>Maximum AI Sample Rate<\/td>\n<td>250 kS\/s<\/td>\n<td>250 kS\/s<\/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>6 DI \/ 4 DO<\/td>\n<td>6 DI \/ 4 DO<\/td>\n<\/tr>\n<tr>\n<td>\u0418\u0437\u043e\u043b\u044f\u0446\u0438\u044f<\/td>\n<td>Bank Isolation<\/td>\n<td>Bank Isolation<\/td>\n<\/tr>\n<tr>\n<td>Installation<\/td>\n<td>PCI Computer<\/td>\n<td>PXI \u0428\u0430\u0441\u0441\u0438<\/td>\n<\/tr>\n<tr>\n<td>Best Application<\/td>\n<td>PC-Based Systems<\/td>\n<td>Modular PXI Test Systems<\/td>\n<\/tr>\n<\/table>\n<h3>PCI-6238 vs Nonisolated DAQ<\/h3>\n<table>\n<tr>\n<th>\u0424\u0443\u043d\u043a\u0446\u0438\u044f<\/th>\n<th>PCI-6238<\/th>\n<th>Typical Nonisolated DAQ<\/th>\n<\/tr>\n<tr>\n<td>\u0418\u0437\u043e\u043b\u044f\u0446\u0438\u044f<\/td>\n<td><strong>Bank Isolated<\/strong><\/td>\n<td>Typically Nonisolated<\/td>\n<\/tr>\n<tr>\n<td>Analog Input<\/td>\n<td>\u0414\u0430<\/td>\n<td>\u0414\u0430<\/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>\u0414\u0430<\/td>\n<td>Model Dependent<\/td>\n<\/tr>\n<tr>\n<td>Counters\/Timers<\/td>\n<td>\u0414\u0430<\/td>\n<td>Model Dependent<\/td>\n<\/tr>\n<tr>\n<td>Industrial Ground Differences<\/td>\n<td><strong>Better Suited<\/strong><\/td>\n<td>Requires Careful Grounding<\/td>\n<\/tr>\n<tr>\n<td>Primary Application<\/td>\n<td>Industrial \/ Isolated Measurement<\/td>\n<td>General-Purpose DAQ<\/td>\n<\/tr>\n<\/table>\n<h3>PCI-6238 vs PCI-6281<\/h3>\n<p>\nThe PCI-6238 and PCI-6281 are designed for different measurement priorities.\n<\/p>\n<table>\n<tr>\n<th>\u0424\u0443\u043d\u043a\u0446\u0438\u044f<\/th>\n<th>PCI-6238<\/th>\n<th>PCI-6281<\/th>\n<\/tr>\n<tr>\n<td>DAQ Family<\/td>\n<td>Isolated M Series<\/td>\n<td>High-Accuracy M Series<\/td>\n<\/tr>\n<tr>\n<td>AI Resolution<\/td>\n<td>16-Bit<\/td>\n<td>18-Bit<\/td>\n<\/tr>\n<tr>\n<td>Maximum AI Sample Rate<\/td>\n<td>250 kS\/s<\/td>\n<td>625 kS\/s<\/td>\n<\/tr>\n<tr>\n<td>Maximum AI Channels<\/td>\n<td>8<\/td>\n<td>16<\/td>\n<\/tr>\n<tr>\n<td>\u0418\u0437\u043e\u043b\u044f\u0446\u0438\u044f<\/td>\n<td><strong>Bank Isolation<\/strong><\/td>\n<td>Nonisolated<\/td>\n<\/tr>\n<tr>\n<td>Primary Strength<\/td>\n<td><strong>Isolated Industrial Measurement<\/strong><\/td>\n<td>High-Accuracy General Measurement<\/td>\n<\/tr>\n<\/table>\n<p>\nChoose the PCI-6238 when isolation and industrial signal acquisition are primary requirements. Choose the PCI-6281 when higher resolution, higher acquisition performance, and additional analog channels are more important.\n<\/p>\n<h3>37-Pin D-SUB Connectivity<\/h3>\n<p>\nThe PCI-6238 uses a <strong>37-pin D-SUB I\/O connector<\/strong>.\n<\/p>\n<p>\nCompatible cables and terminal blocks provide convenient access to the analog input, digital I\/O, counter, and timing signals.\n<\/p>\n<p>\nBefore purchasing an accessory, verify the exact connector, pinout, cable, terminal block, shielding, and application requirements for the PCI-6238.\n<\/p>\n<h3>Signal Conditioning<\/h3>\n<p>\nThe PCI-6238 measures compatible voltage signals directly, but many sensors require additional signal conditioning.\n<\/p>\n<p>\nDepending on the application, signal conditioning may provide:\n<\/p>\n<ul>\n<li>Amplification<\/li>\n<li>Filtering<\/li>\n<li>Additional isolation<\/li>\n<li>Sensor excitation<\/li>\n<li>Voltage attenuation<\/li>\n<li>Current-to-voltage conversion<\/li>\n<li>Bridge completion<\/li>\n<\/ul>\n<p>\nSignal-conditioning hardware should be selected according to the sensor type and electrical characteristics of the measurement.\n<\/p>\n<h3>NI-DAQmx Software<\/h3>\n<p>\nThe PCI-6238 uses <strong>\u041d\u0418-DAQmx<\/strong> for hardware configuration and application development.\n<\/p>\n<p>\nNI-DAQmx provides functionality for:\n<\/p>\n<ul>\n<li>Device configuration<\/li>\n<li>Analog input acquisition<\/li>\n<li>Digital input<\/li>\n<li>Digital output<\/li>\n<li>Counter\/timer operations<\/li>\n<li>Timing configuration<\/li>\n<li>Hardware triggering<\/li>\n<li>Device diagnostics<\/li>\n<li>Calibration information<\/li>\n<\/ul>\n<h3>LabVIEW Integration<\/h3>\n<p>\nThe PCI-6238 can be integrated into LabVIEW measurement and automated test applications using compatible NI-DAQmx software.\n<\/p>\n<p>\nA typical application workflow is:\n<\/p>\n<p>\n<strong>Configure Channels \u2192 Configure Timing \u2192 Configure Trigger \u2192 Start Acquisition \u2192 Read Data \u2192 Analyze \u2192 Log Results<\/strong>\n<\/p>\n<h3>Legacy System Replacement<\/h3>\n<p>\nThe PCI-6238 remains particularly relevant for maintenance of existing NI measurement and automated test systems based on conventional PCI computers.\n<\/p>\n<p>\nWhen replacing an existing PCI-6238, verify:\n<\/p>\n<ul>\n<li>PCI slot compatibility<\/li>\n<li>37-pin connector requirements<\/li>\n<li>Existing cable compatibility<\/li>\n<li>Terminal block compatibility<\/li>\n<li>Analog input configuration<\/li>\n<li>Digital I\/O requirements<\/li>\n<li>Counter\/timer usage<\/li>\n<li>Isolation requirements<\/li>\n<li>NI-DAQmx version<\/li>\n<li>Operating system compatibility<\/li>\n<li>LabVIEW version<\/li>\n<li>Existing application source code<\/li>\n<\/ul>\n<h3>How to Choose an Isolated DAQ Device<\/h3>\n<p>\nBefore selecting the PCI-6238, evaluate:\n<\/p>\n<ul>\n<li>Required isolation architecture<\/li>\n<li>Analog input channel count<\/li>\n<li>Single-ended or differential measurement requirements<\/li>\n<li>Analog input resolution<\/li>\n<li>Required sampling rate<\/li>\n<li>Input voltage ranges<\/li>\n<li>Whether analog output is required<\/li>\n<li>Digital input requirements<\/li>\n<li>Digital output requirements<\/li>\n<li>Counter\/timer requirements<\/li>\n<li>PCI slot availability<\/li>\n<li>Connector and cable requirements<\/li>\n<li>Signal-conditioning requirements<\/li>\n<li>NI-DAQmx compatibility<\/li>\n<li>Operating system compatibility<\/li>\n<\/ul>\n<h3>Industries<\/h3>\n<ul>\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>Automated Test<\/li>\n<li>Manufacturing Test<\/li>\n<li>Machine Monitoring<\/li>\n<li>Electronic Validation<\/li>\n<li>Power Electronics<\/li>\n<li>Motor and Drive Testing<\/li>\n<li>Laboratory Automation<\/li>\n<li>Research and Development<\/li>\n<li>Production Test<\/li>\n<\/ul>\n<h3>Applications<\/h3>\n<h4>Industrial Voltage Measurement<\/h4>\n<p>\nThe PCI-6238 can acquire compatible voltage signals from industrial equipment where isolated measurement is required.\n<\/p>\n<h4>Machine Monitoring<\/h4>\n<p>\nAnalog inputs and digital I\/O can be used to monitor machine signals, equipment states, sensors, and production processes.\n<\/p>\n<h4>Automated Test<\/h4>\n<p>\nThe PCI-6238 can combine isolated analog acquisition, digital control, digital monitoring, counters, timing, and triggering in automated test systems.\n<\/p>\n<h4>Production Test<\/h4>\n<p>\nThe device can be incorporated into production test stations requiring isolated measurement and digital interaction with the device under test.\n<\/p>\n<h4>Motor and Drive Test<\/h4>\n<p>\nThe isolated architecture can be useful in compatible motor, actuator, and drive testing applications where electrical noise and ground differences must be considered.\n<\/p>\n<h4>Legacy Test System Maintenance<\/h4>\n<p>\nThe PCI-6238 can be used to maintain existing PCI-based NI measurement systems where compatibility with established hardware, cabling, drivers, and application software is important.\n<\/p>\n<h3>Recommended Related Products<\/h3>\n<table>\n<tr>\n<td width=\"220\"><strong>PCI-6238<\/strong><\/td>\n<td>Isolated PCI M Series DAQ for analog acquisition, digital I\/O, counters, and industrial measurement.<\/td>\n<\/tr>\n<tr>\n<td><strong>PXI-6238<\/strong><\/td>\n<td>PXI version for modular systems requiring similar isolated measurement and digital I\/O capabilities.<\/td>\n<\/tr>\n<tr>\n<td><strong>PCI-6230<\/strong><\/td>\n<td>Related isolated M Series PCI DAQ with four analog outputs for applications requiring both acquisition and analog generation.<\/td>\n<\/tr>\n<tr>\n<td><strong>PCI-6232<\/strong><\/td>\n<td>Related isolated M Series DAQ option for industrial measurement and control applications.<\/td>\n<\/tr>\n<tr>\n<td><strong>PCI-6233<\/strong><\/td>\n<td>Related isolated multifunction DAQ device for applications requiring a different I\/O configuration.<\/td>\n<\/tr>\n<tr>\n<td><strong>PCI-6281<\/strong><\/td>\n<td>18-bit high-accuracy M Series PCI DAQ for applications prioritizing measurement resolution and acquisition performance.<\/td>\n<\/tr>\n<\/table>\n<h3>Why Choose PCI-6238?<\/h3>\n<ul>\n<li>Isolated M Series architecture<\/li>\n<li>8 single-ended analog inputs<\/li>\n<li>4 differential analog inputs<\/li>\n<li>16-bit analog input resolution<\/li>\n<li>Up to 250 kS\/s sampling<\/li>\n<li>Multiple programmable input ranges<\/li>\n<li>6 digital input lines<\/li>\n<li>4 digital output lines<\/li>\n<li>Two 32-bit counters\/timers<\/li>\n<li>Bank isolation<\/li>\n<li>37-pin D-SUB connector<\/li>\n<li>PCI host interface<\/li>\n<li>NI-DAQmx support<\/li>\n<li>\u0418\u043d\u0442\u0435\u0433\u0440\u0430\u0446\u0438\u044f LabVIEW<\/li>\n<li>Suitable for industrial measurement<\/li>\n<li>Suitable for automated testing<\/li>\n<li>Suitable for legacy PCI system maintenance<\/li>\n<\/ul>\n<h3>Frequently Asked Questions<\/h3>\n<h4>What is the NI PCI-6238?<\/h4>\n<p>\nThe NI PCI-6238 is an isolated M Series multifunction PCI DAQ device designed for analog voltage acquisition, digital I\/O, counter\/timer measurements, industrial monitoring, and automated testing.\n<\/p>\n<h4>How many analog input channels does PCI-6238 have?<\/h4>\n<p>\nThe PCI-6238 provides up to <strong>8 single-ended or 4 differential analog input channels<\/strong>.\n<\/p>\n<h4>What is the analog input resolution of PCI-6238?<\/h4>\n<p>\nThe PCI-6238 provides <strong>16-bit analog input resolution<\/strong>.\n<\/p>\n<h4>What is the maximum sample rate of PCI-6238?<\/h4>\n<p>\nThe PCI-6238 supports analog input sampling rates up to <strong>250 kS\/s<\/strong>.\n<\/p>\n<h4>What analog input ranges does PCI-6238 support?<\/h4>\n<p>\nThe PCI-6238 supports programmable input ranges including <strong>\u00b10.2 V, \u00b11 V, \u00b15 V, and \u00b110 V<\/strong>.\n<\/p>\n<h4>Does PCI-6238 have analog outputs?<\/h4>\n<p>\nNo. The PCI-6238 does not provide analog output channels. If analog generation is required in a closely related isolated M Series architecture, the PCI-6230 should be evaluated.\n<\/p>\n<h4>How many digital inputs does PCI-6238 have?<\/h4>\n<p>\nThe PCI-6238 provides <strong>6 digital input lines<\/strong>.\n<\/p>\n<h4>How many digital outputs does PCI-6238 have?<\/h4>\n<p>\nThe PCI-6238 provides <strong>4 digital output lines<\/strong>.\n<\/p>\n<h4>Is PCI-6238 isolated?<\/h4>\n<p>\nYes. The PCI-6238 uses a <strong>bank-isolated I\/O architecture<\/strong>, making isolation one of the primary characteristics of this model.\n<\/p>\n<h4>How many counters does PCI-6238 have?<\/h4>\n<p>\nThe PCI-6238 provides <strong>two 32-bit counters\/timers<\/strong>.\n<\/p>\n<h4>What connector does PCI-6238 use?<\/h4>\n<p>\nThe PCI-6238 uses a <strong>37-pin D-SUB I\/O connector<\/strong>. The appropriate compatible cable and terminal block should be selected according to the application.\n<\/p>\n<h4>What driver does PCI-6238 use?<\/h4>\n<p>\nThe PCI-6238 uses <strong>\u041d\u0418-DAQmx<\/strong> for hardware configuration, data acquisition, digital I\/O, counters\/timers, timing, and triggering.\n<\/p>\n<h4>Can PCI-6238 be used with LabVIEW?<\/h4>\n<p>\nYes. The PCI-6238 can be integrated into LabVIEW-based data acquisition, industrial monitoring, and automated test applications using compatible NI-DAQmx software.\n<\/p>\n<h4>What is the difference between PCI-6238 and PCI-6230?<\/h4>\n<p>\nThe devices provide closely related isolated analog input and digital I\/O functionality. The major difference is that the PCI-6230 additionally provides four analog output channels, while the PCI-6238 does not provide analog outputs.\n<\/p>\n<h4>What is the difference between PCI-6238 and PXI-6238?<\/h4>\n<p>\nThe main difference is the system platform. PCI-6238 installs in a conventional PCI computer, while PXI-6238 installs in a PXI chassis. They provide closely related isolated M Series measurement capabilities.\n<\/p>\n<h4>Is PCI-6238 suitable for industrial measurement?<\/h4>\n<p>\nYes. Its bank-isolated architecture makes the PCI-6238 particularly suitable for industrial monitoring and automated test applications where electrical noise or ground-potential differences may be present.\n<\/p>\n<h4>Can PCI-6238 directly measure high-voltage power signals?<\/h4>\n<p>\nThe PCI-6238 must only be used within its specified input, common-mode, working-voltage, and isolation limits. Higher-voltage signals require appropriate attenuation, probes, external isolation, or signal-conditioning hardware.\n<\/p>\n<h4>What should I check before purchasing a PCI-6238?<\/h4>\n<p>\nVerify the required analog input channel count, 16-bit resolution, 250 kS\/s sampling rate, voltage ranges, isolation requirements, digital I\/O, counters, PCI interface, 37-pin cabling and terminal block, NI-DAQmx compatibility, operating system, and existing application software.\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 PCI-6238 Isolated M Series Multifunction DAQ<\/strong> combines 16-bit, 250 kS\/s analog acquisition with up to 8 single-ended or 4 differential analog inputs, six digital inputs, four digital outputs, two 32-bit counters\/timers, and bank isolation. Its isolated architecture makes it particularly suitable for industrial measurement, machine monitoring, automated test, production testing, electronic validation, and maintenance of existing PCI-based NI data acquisition systems.<\/p>","protected":false},"excerpt":{"rendered":"<p>\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: 0<br \/>\n\u041c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u043e\u0435 \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u043e\u0434\u043d\u043e\u043a\u043e\u043d\u0446\u043e\u0432\u044b\u0445 \u0430\u043d\u0430\u043b\u043e\u0433\u043e\u0432\u044b\u0445 \u0432\u0445\u043e\u0434\u043d\u044b\u0445 \u043a\u0430\u043d\u0430\u043b\u043e\u0432: 0<br \/>\nNumber of Counters\/Timers: 2<br \/>\n\u041c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u043e\u0435 \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u0434\u0438\u0444\u0444\u0435\u0440\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u0445 \u0430\u043d\u0430\u043b\u043e\u0433\u043e\u0432\u044b\u0445 \u0432\u0445\u043e\u0434\u043d\u044b\u0445 \u043a\u0430\u043d\u0430\u043b\u043e\u0432: 8<br \/>\n\u0420\u0430\u0437\u043c\u0435\u0440 FIFO-\u0431\u0443\u0444\u0435\u0440\u0430 \u0430\u043d\u0430\u043b\u043e\u0433\u043e\u0432\u043e\u0433\u043e \u0432\u0445\u043e\u0434\u0430: 4095 \u0432\u044b\u0431\u043e\u0440\u043e\u043a<br \/>\n\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: 250 \u043a\u0412\u044b\u0431\/\u0441<br \/>\n\u041e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u0430\u044f \u0432\u044b\u0431\u043e\u0440\u043a\u0430: \u041d\u0435\u0442<br \/>\n\u0412 \u043a\u043e\u043c\u043f\u043b\u0435\u043a\u0442 \u0432\u0445\u043e\u0434\u0438\u0442: \u0414\u0430<br \/>\n\u0420\u0430\u0437\u0440\u0435\u0448\u0435\u043d\u0438\u0435 \u0430\u043d\u0430\u043b\u043e\u0433\u043e\u0432\u043e\u0433\u043e \u0432\u0445\u043e\u0434\u0430: 16 \u0431\u0438\u0442<br \/>\nBus Connector: PCI<br \/>\nFront Connection Type: D-SUB(1)<br \/>\n\u0427\u0438\u0441\u043b\u043e \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: 2<br \/>\nMaximum Analog Update Rate: 500 kS\/s<br \/>\nBus Connection: PCI<br \/>\n\u041d\u0430\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0442\u0435\u043a\u0443\u0449\u0435\u0433\u043e \u043f\u043e\u0442\u043e\u043a\u0430: \u041f\u043e\u0434\u0430\u0447\u0430 \u0432\u044b\u0445\u043e\u0434\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445<br \/>\nNumber of Digital Input Only Channels: 6<br \/>\nNumber of Digital Output Only Channels: 4<\/p>","protected":false},"featured_media":31107,"template":"","meta":{"_acf_changed":false},"product_brand":[18],"product_cat":[674],"product_tag":[],"class_list":["post-34654","product","type-product","status-publish","has-post-thumbnail","product_brand-national-instruments","product_cat-pci-usb","first","instock","shipping-taxable","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 PCI-6238 PCI Multifunction I\/O Device 779623-01, In Stock | Project Pricing<\/title>\n<meta name=\"description\" content=\"NI PCI-6238 is a 16-bit isolated M Series PCI DAQ device with 8 analog inputs, 6 digital inputs, 4 digital outputs and two 32-bit counters\/timers.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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