PCI-6224 32-Channel Multifunction Data Acquisition Device
Земля PCI-6224 is an M Series multifunction data acquisition device designed for PCI-based measurement and automation systems. It provides 32 single-ended or 16 differential analog input channels with 16-bit resolution and aggregate sampling rates up to 250 kS/s.
The device also includes 48 programmable digital I/O lines and two 32-bit counters/timers. Its high channel density makes it suitable for automated test fixtures, laboratory data logging, digital control and multichannel voltage monitoring.
Key Features of the PCI-6224
- 32 single-ended or 16 differential analog inputs
- 16-bit analog input resolution
- 250 kS/s maximum aggregate sample rate
- ±0.2 V, ±1 V, ±5 V and ±10 V ranges
- 48 programmable digital I/O lines
- Correlated digital input and output
- Two 32-bit counters/timers
- 80 MHz counter timebase
- Hardware digital triggering
- RTSI device synchronization
- DMA-based data transfer
- Two 68-pin VHDCI connectors
- NI-DAQmx software support
- No onboard analog output channels
PCI-6224 Technical Specifications
| Product Model | PCI-6224 |
|---|---|
| Product Series | M Series Multifunction DAQ |
| Шинный интерфейс | PCI |
| Analog Inputs | 32 single-ended or 16 differential |
| ADC Resolution | 16 bits |
| Maximum Sample Rate | 250 kS/s aggregate |
| Input Ranges | ±0.2 V, ±1 V, ±5 V and ±10 V |
| Input Coupling | DC |
| Input Bandwidth | 700 kHz |
| CMRR | 92 dB, DC to 60 Hz |
| Analog Outputs | Ничего |
| Цифровой ввод-вывод | 48 programmable lines |
| Counters/Timers | 2 × 32-bit |
| Counter Timebases | 80 MHz, 20 MHz and 100 kHz |
| Запуск | Digital hardware triggering |
| Синхронизация | RTSI bus |
| I/O Connectors | 2 × 68-pin VHDCI |
| Calibration Interval | 1 year |
| Operating Temperature | 0°C to 55°C |
PCI-6224 Part Number and Accessories
| Item | Part Number | Описание |
|---|---|---|
| PCI-6224 | 779067-01 | 32-channel, 16-bit PCI multifunction DAQ device |
| 68-Pin Shielded DAQ Cable | Length dependent | Connects an I/O connector to a compatible terminal accessory |
| SCB-68A | Configuration dependent | Shielded screw-terminal block for analog and digital wiring |
| CB-68LP | Configuration dependent | Low-cost connector block for general signal access |
| RTSI Cable | Configuration dependent | Synchronizes compatible PCI measurement boards |
Because the PCI-6224 has two 68-pin connectors, the application may require two cables and two terminal accessories to access every analog and digital channel.
32-Channel Analog Acquisition
The analog subsystem can be configured for 32 single-ended inputs or 16 differential inputs. Mixed terminal configurations may also be possible when the physical channel-pairing rules are followed.
The 250 kS/s rate is shared across the active channel list. For example, scanning multiple channels reduces the effective sample rate available to each channel.
48 Digital I/O Lines
The digital subsystem provides substantially greater channel density than 24-line M Series boards. It can monitor fixture status, control relays, communicate with parallel digital hardware and perform correlated waveform operations.
Counter and Encoder Functions
Two 32-bit counters support edge counting, frequency and period measurement, pulse-width measurement, quadrature encoders and pulse generation.
No Analog Output Channels
The PCI-6224 is optimized for analog acquisition and digital I/O. Applications requiring analog stimulus should select a model such as the PCI-6229 or add a separate analog output device.
PCI-6224 Applications
- Multichannel voltage acquisition
- Automated production testing
- Laboratory data logging
- Test-fixture digital control
- Electronic device validation
- Sensor monitoring
- Digital waveform acquisition
- Encoder and frequency measurements
- Machine-state monitoring
- Research and educational laboratories
- Legacy PCI test-system expansion
- Mixed analog and digital measurements
High-Channel-Count Data Logging
The board can monitor as many as 32 voltage signals through one PCI slot. External conditioning can adapt thermocouples, current loops and other sensors to its voltage-input ranges.
Automated Test Fixtures
Analog inputs measure DUT signals while the 48 digital lines control relays, read interlocks and select fixture paths. Counter functions can measure encoders and pulse signals.
PCI-6224 Installation Workflow
Step 1: Confirm PCI Compatibility
Verify that the computer includes a conventional PCI slot and supports an NI-DAQmx version compatible with the board.
Step 2: Install the PCI-6224
Shut down and unplug the computer, insert the board into the PCI slot and secure it mechanically.
Step 3: Select the Cable Set
Determine whether one or both 68-pin connectors are required. Use shielded cables for sensitive analog measurements.
Step 4: Connect the Terminal Blocks
Wire each signal according to the official pinout and label the terminal blocks according to connector and channel number.
Step 5: Configure NI MAX
Run a self-test and configure representative analog, digital and counter channels.
Step 6: Select the Input Configuration
Choose referenced single-ended, nonreferenced single-ended or differential wiring according to the signal source.
Step 7: Configure the Channel Scan
Set the active channel list and aggregate rate while allowing adequate multiplexer settling time.
PCI-6224 Troubleshooting
Some channels show the same voltage
Check differential channel pairing and terminal configuration. Incorrect pairing can connect the wrong negative input to a differential channel.
The per-channel sample rate is lower than expected
The 250 kS/s rating is an aggregate rate shared by all scanned analog channels.
Channel readings change after scanning a high-voltage source
Reduce source impedance or slow the convert rate to provide additional settling time between multiplexed channels.
Some digital lines are unavailable
Confirm that both VHDCI connectors and the correct cable accessories are installed. Not all signals are present on one connector.
The application cannot generate analog voltage
The PCI-6224 does not include analog outputs. Add a separate AO device or select a multifunction model with output channels.
PCI-6224 Comparison
| Модель | Primary Configuration | Best Suited For |
|---|---|---|
| PCI-6224 | 32 AI, 16 bit, 250 kS/s, 48 DIO, no AO | High-channel-count input and digital control |
| PCI-6221 | 16 AI, 2 AO, 24 DIO | Lower channel count with analog output |
| PCI-6229 | 32 AI, 4 AO, 48 DIO | High-density multifunction input and output |
| PCI-6280 | 16 AI, 18 bit, up to 625 kS/s | Higher-resolution voltage measurements |
Recommended Related Products
- PCI-6229 Multifunction DAQ Device
- PCI-6280 High-Accuracy DAQ Device
- PCI-6233 Isolated Multifunction DAQ
- View More NI PCI and USB DAQ Products
Frequently Asked Questions
What is the PCI-6224?
The PCI-6224 is a 16-bit M Series PCI DAQ board with 32 analog inputs, 48 digital I/O lines and two counters.
What is the maximum analog sample rate?
The maximum aggregate analog input rate is 250 kS/s.
Does the PCI-6224 have analog outputs?
No. It is designed for analog input, digital I/O and counter/timer applications.
How many connectors does it use?
The PCI-6224 uses two 68-pin VHDCI I/O connectors.
What is the PCI-6224 part number?
The standard ordering part number is 779067-01.
Request a Quote for the PCI-6224
Contact us for availability, lead time and pricing for the PCI-6224 32-Channel Multifunction DAQ Device. We can also help identify the two required cable paths, terminal blocks and suitable newer DAQ alternatives.
