Advantech PCI bus data acquisition and control card | Analog Output Card PCI-1721 | 12 位 10M 4-way PCI-1721 Products is a high performance PCI analog output cards, each analog output channel with a 12 bit double buffer DAC. This output card has many powerful and unique features, such as a maximum update rate of 10MHz waveform output function, automatic calibration function and ID cards and so on. PCI-1721 is a high-speed continuous analog output requirements or ideal real-time waveform output applications. Features: 1. Automatic calibration function 2. 10MHz maximum digital update rate 3. PCI bus data transfer 4.4-channel analog output with 1K FIFO 5. Each analog output channel with a 12 DAC 6. Internal / External real-time waveform output trigger synchronous output function 7. 8. flexible input type and range setting 9. After the restart the system is set to maintain output and output value 10.16 Road DIO and a 10MHz 16-bit resolution counter 11. Board 1, the automatic calibration function PCI-1721 by using a calibration program can provide automatic calibration function. PCI-1721 built-in calibration circuit for analog output channel gain and offset error correction, no need to adjust the external device and user settings. 2, PCI bus data transfer PCI-1721 supports PCI bus DMA capabilities for high-speed data transmission and no interval of analog output. By setting the PC's memory, PCI-1721 data bus executable without CPU intervention, the CPU can go do other more important tasks, such as: data analysis and graphics operations. This feature allows the user full access to all I / O functions without losing data. 3, after the system restart to keep the output value of the user can output four separate channels to different ranges: 0 ~ + 5V, 0 ~ + 10V, ± 5V, ± 10V, 0 ~ 20mA or 4 ~ 20mA, all ranges can be selected via software. When the system is hot restart (power off), according to the jumper settings, PCI-1721 can maintain the last analog output setting or output value, or return to the default configuration. This unique feature can avoid dangerous accidents in the system caused by misuse of the process restarted. 4, board ID PCI-1721 comes with a DIP switch, when installed on the computer chassis multiple PCI-1721 card, you can use this switch to define each card's ID. When users build their own system using multiple PCI-1721 card ID setting function will be extremely useful. If the board ID is set up correctly, the user can easily configure the hardware and software programming to distinguish and visit each board. 5, there is provided on the card FIFO (First In First Out) memory on the PCI-1721 card FIFO (First In First Out) memory, can store 1K D / A conversion value. 6, programmable timer / counter by using the card programmable counter / timer, PCI-1721 provides a programmable timer and counter, used to provide a trigger pulse for D / A conversion. Timer / counter chip 82C54, containing three 16 10MHz clock. There is a counter as an event counter input channels used to count events. Two counter stage together, used as a 32-bit timer pulse trigger. 7, waveform analog output PCI-1721 provides four analog output channels. They can produce a continuous waveform output of an analog output channel can generate 10MS per second data output, the user can also waveform data stored in the FIFO on the card, so you can generate a waveform output cycle. FIFO PCI-1721 card can store 2-1024 waveform sampling. fttilslli