PCI-6221 NI
The PCI-6221 is a data acquisition device produced by National Instruments (NI). It is designed to acquire analog and digital signals from a variety of sources in industrial and laboratory settings.
Product Information
- Analog Input Channels: 16 single-ended or 8 differential
- Analog Input Resolution: 16 bits
- Analog Input Sampling Rate: Up to 250 kS/s
- Analog Output Channels: 2
- Analog Output Resolution: 16 bits
- Analog Output Update Rate: Up to 833 kS/s
- Digital I/O Lines: 24
- Counter/Timers: 2
Parameters
- Input Voltage Range: ±10 V
- Input Impedance: 1 MΩ || 20 pF
- Output Voltage Range: ±10 V
- Output Impedance: 0.5 Ω
- Digital I/O Voltage Range: 0 to 5 V TTL/CMOS compatible
- Counter/Timer Resolution: 32 bits
- Counter/Timer Max Frequency: 10 MHz
The PCI-6221 is compatible with NI’s LabVIEW software for data acquisition and analysis. It can also be used with other programming languages such as C, C++, and Python through NI’s Measurement and Automation Explorer (MAX) software.
Here are some of the technical specifications of the PCI-6221:
- Analog Input Channels: 16 single-ended or 8 differential
- Analog Input Resolution: 16 bits
- Analog Input Range: ±10V, ±5V, ±2V, ±1V, ±0.5V, ±0.2V
- Analog Output Channels: 4
- Analog Output Resolution: 16 bits
- Analog Output Range: ±10V, ±5V, ±2V, ±1V
- Digital I/O Lines: 24
- Counter/Timers: 2
To use the PCI-6221 effectively, it is important to understand the various parameters that can be configured. These include:
- Sampling Rate: Determines how often the device samples analog input and output signals. The maximum sampling rate for the PCI-6221 is 250 kS/s.
- Buffer Size: Determines the size of the buffer used to store acquired data. A larger buffer size can help prevent data loss.
- Trigger Mode: Determines how the device is triggered to start acquiring data. This can be either software-triggered or hardware-triggered.
- Input Coupling: Determines how the device couples with the input signal. This can be either AC or DC coupling.
- Input Impedance: Determines the impedance of the device when acquiring analog input signals. This can be set to either 1 MΩ or 100 kΩ.
By understanding these parameters and how they affect data acquisition, you can use the PCI-6221 to its full potential.
