PCIe-6342 32-Channel Multifunction DAQ Device
The NI PCIe-6342 is an X Series multifunction data acquisition device designed for PCI Express computers. It provides 32 single-ended or 16 differential analog inputs, 48 bidirectional digital I/O lines and four 32-bit counters/timers.
Its 16-bit ADC supports an aggregate sampling rate of 500 kS/s. The PCIe-6342 is suitable for multichannel voltage acquisition, production testing, fixture control, encoder measurements and laboratory automation.
NI-STC3 timing technology provides independent timing engines, flexible trigger routing and retriggerable measurement tasks. The device is controlled through the NI-DAQmx driver.
Key Features of the PCIe-6342
- 32 single-ended or 16 differential analog inputs
- 16-bit analog input resolution
- 500 kS/s aggregate sampling rate
- ±0.2 V, ±1 V, ±5 V and ±10 V ranges
- 48 bidirectional 5 V digital I/O lines
- Four 32-bit counters/timers
- NI-STC3 timing and synchronization
- Retriggerable measurement tasks
- PCI Express interface
- NI-DAQmx software support
PCIe-6342 Technical Specifications
| Product Model | PCIe-6342 |
|---|---|
| Part Number | 790587-01 |
| Product Type | X Series multifunction DAQ device |
| Analog Inputs | 32 single-ended or 16 differential |
| ADC Resolution | 16 bits |
| Maximum Sample Rate | 500 kS/s aggregate |
| Input Ranges | ±0.2 V, ±1 V, ±5 V and ±10 V |
| Input Architecture | Multiplexed, non-simultaneous |
| Analog Input FIFO | 2,047 samples |
| Analog Outputs | 0 |
| Digital I/O | 48 bidirectional lines |
| Digital Logic Level | 5 V TTL-compatible |
| Counters/Timers | Four 32-bit counters |
| Maximum Digital Clock | 10 MHz |
| Timing Technology | NI-STC3 |
| Host Interface | PCI Express |
| Front Connectors | 68-pin VHDCI connection system |
| Driver | NI-DAQmx |
| Operating Temperature | 0°C to 50°C |
The 500 kS/s specification is shared across all channels in the acquisition task. Source impedance, channel count and settling requirements affect the practical per-channel rate.
PCIe-6342 Part Number and Accessories
| Item | Part Number | Description |
|---|---|---|
| PCIe-6342 | 790587-01 | 32 AI, 500 kS/s, 48 DIO multifunction DAQ device |
| SHC68-68-EPM | 192061-02 | 2 m shielded 68-pin D-Type to VHDCI cable |
| SHC68-68 | 191945-02 | 2 m twisted-pair cable with basic shielding |
| SCB-68A | 782536-01 | Shielded screw-terminal connector block |
| BNC-2110 | 777643-01 | Shielded BNC connector block |
| BNC-2120 | 777960-01 | BNC block with function-generator and encoder connections |
Configurable Analog Input Architecture
Single-ended operation maximizes channel count, while differential operation improves rejection of common-mode interference. Differential wiring is recommended for remote, floating or low-level sources.
The multiplexed ADC samples enabled channels sequentially. High-impedance sources may require a slower scanning rate, additional settling time or an external buffer amplifier.
48-Line Digital I/O
The digital channels can monitor switches and logic states or control external test-fixture circuitry. PFI-capable terminals can also carry sample clocks, triggers and counter signals.
Digital outputs are logic-level connections and should not directly drive motors, solenoids or relay coils. External driver and protection circuits are required for power loads.
Four Hardware Counters
The four 32-bit counters support event counting, frequency, period, pulse-width, PWM, quadrature encoder and pulse-generation functions.
PCIe-6342 Applications
- Multichannel voltage measurement
- Automated production testing
- Machine and process monitoring
- Electronic device validation
- Fixture and digital control
- Encoder and position measurement
- Frequency and pulse measurement
- Laboratory data logging
Automated Test Systems
The PCIe-6342 combines analog acquisition, digital control and counter measurements in one board. Test software can coordinate measurements with triggers, fixture states and DUT operating conditions.
Multichannel Data Logging
Its 32 single-ended inputs support monitoring multiple conditioned sensors or electronic test points. Logging software should manage acquisition buffers, timestamps and file storage.
PCIe-6342 Installation Workflow
Step 1: Verify Compatibility
Confirm an available PCI Express slot and support in the selected NI-DAQmx release.
Step 2: Select Connectivity
Choose the required shielded cables and compatible terminal blocks according to the wiring method.
Step 3: Install NI-DAQmx
Install the driver and development-environment support.
Step 4: Install the Board
Power down the computer, observe ESD precautions and secure the PCIe-6342 in the slot.
Step 5: Connect Signals
Configure RSE, NRSE or differential wiring and keep analog cables separated from noisy conductors.
Step 6: Test in NI MAX
Run self-test and use test panels to verify analog, digital and counter operations.
PCIe-6342 Troubleshooting
The board is not detected
Check PCI Express seating, slot operation and NI-DAQmx compatibility.
Analog readings are noisy
Use shielded twisted pairs, differential mode and correct grounding.
The sampling rate is lower than expected
The 500 kS/s rating is aggregate. Reduce the number of scanned channels or review settling-time requirements.
Digital outputs cannot operate a load
Add an external transistor, relay driver or isolated interface suitable for the load.
Counter readings are unstable
Check signal thresholds, edge quality, grounding and PFI terminal routing.
PCIe-6342 Comparison
| Model | Analog Inputs | AI Rate | DIO | Analog Outputs |
|---|---|---|---|---|
| PCIe-6342 | 32 SE / 16 DIFF | 500 kS/s | 48 | 0 |
| PCIe-6340 | 16 SE / 8 DIFF | 500 kS/s | 24 | 0 |
| PCIe-6352 | 32 SE / 16 DIFF | 1.25 MS/s | 48 | 0 |
Choose the PCIe-6342 for 32 analog inputs and 48 digital lines at 500 kS/s. Select the PCIe-6352 when the same channel arrangement requires a higher acquisition rate.
PCIe-6342 Frequently Asked Questions
What is the PCIe-6342 part number?
The NI part number is 790587-01.
How many analog inputs are available?
It provides 32 single-ended or 16 differential inputs.
Does it provide analog output?
No. The PCIe-6342 does not include analog output channels.
Does it use simultaneous sampling?
No. It uses a multiplexed ADC.
Which driver controls the device?
The PCIe-6342 uses NI-DAQmx.
Recommended Related Products
- PCIe-6340 Multifunction DAQ
- PCIe-6352 Multifunction DAQ
- SCB-68A Connector Block
- BNC-2110 Connector Block
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Contact us for availability, lead time and project pricing for the PCIe-6342 790587-01 and compatible cables and terminal accessories.
