Clocks This card is part of the DAQmx API, and therefore the hardware clocks cannot be directly accessed. The clocks can only be set indirectly with the functions that utilize them such as the timebase VIs. Only one timebase VI may be present in a diagram. In addition, an immediate VI for the same type of channel can not be used even if they use different resources. For instance, if a HIL Read Timebase Analog (Scalar) VI is in use, you cannot also have a HIL Read Analog (Scalar) VI in the diagram, even if the two VIs do not read the same analog input channels. The HIL Read Timebase VI only supports a buffer size of 1. The same holds true of the task creation functions. When adding a timebase VI, you must change the Samples in buffer field or you will receive the error "The specified buffer size is not valid. It may be out of an acceptable range." Analog Inputs The NI PCIe-6351 supports 16 analog inputs (channels 0 to 15) with 16-bit resolution. The valid input ranges are ±10V, ±5V, ±2V, ±1V, ±0.5V, ±0.2V and ±0.1V. To change from the default range of ±10V, set the minimum and maximum for each channel in the Analog Inputs tab of the HIL Initialize VI. All of the analog inputs must have the same input range for this card. Analog Outputs The NI PCIe-6351 supports 2 analog outputs (channels 0 to 1) with 16-bit resolution. The valid output ranges are ±10V and ±5V . To change from the default range of ±10V, set the minimum and maximum for each channel in the Analog Outputs tab of the HIL Initialize VI. All of the analog outputs must have the same output range for this card. In order to have analog outputs set to a particular voltage when the block diagram is run or stopped, the analog outputs must be configured on the HIL Initialize VI's Analog Outputs tab. Set the Initial analog outputs and Final analog outputs to the desired voltage values. Digital I/O The NI PCIe-6351 supports 24 bidirectional digital lines (lines 0 to 23). A digital I/O line cannot be used as an input and output at the same time. Since the digital I/O lines may be individually programmed as inputs or outputs, the direction of each digital I/O line should be configured on the HIL Initialize VI's Digital I/O tab. To set the digital output values when the block diagram is run or stopped, set the Initial digital outputs and Final digital outputs to the desired values respectively. Encoder Inputs The NI PCIe-6351 supports 4 quadrature encoder inputs with 32-bit count values (channels 0 to 3). Note that since this card uses its counters for both encoder inputs and PWM outputs, you can only use a counter as either an encoder input or a PWM output channel. In order to set the encoder counters to a particular count or to change the default quadrature when the block diagram is run, the encoder inputs must be configured on the HIL Initialize VI's Encoder Inputs tab. The NI PCIe-6351 supports non-quadrature (count and direction), 1X quadrature, 2X quadrature and 4X quadrature. The NI PCIe-6351 does not support encoder filtering. PWM Outputs The NI PCIe-6351 supports 4 32-bit PWM Outputs using its 4 counters (channels 0 to 3). The PWM outputs on this card use a counter timebase rate of 100 MHz. Note that since this card uses its counters for both encoder inputs and PWM outputs, you can only use a counter as either an encoder input or a PWM output channel. In order to configure the PWM mode or frequency, or to set the value of the PWM outputs when the block diagram is run or stopped, the PWM outputs must be configured on the HIL Initialize VI's PWM Outputs tab. The Initial output checkbox should always be checked. Set the PWM output mode field to the desired output mode. The NI PCIe-6351 supports all the PWM output modes: duty cycle, frequency or period. See the description of the HIL Initialize VI for details on these modes. Then set the PWM output frequency in Hz or duty cycle field to the desired frequency or duty cycle. Note that this card is part of the National Instruments' DAQmx API and one of the limitations of this API is that you cannot output a PWM signal with a 0% or 100% duty cycle. Furthermore, a value of 0 for frequency is also not acceptable. When in duty cycle mode, the acceptable range of duty cycles are: Note that the PWM signal period is the frequency inverted. Therefore, the acceptable value for duty cycle is related to the frequency at which the signal is being generated. In frequency mode, the acceptable range of frequencies are related to the duty cycle of the signal and are as follows: In period mode, the maximum and minimum values for period are reciprocals of the minimum/maximum values for frequency above. As mentioned earlier in this section, the counters cannot be used as both encoder inputs and PWM outputs. Attempting to do so would produce an error message. Due to the DAQmx API limitations, a value of 0 (0%) and 1 (100%) for duty cycle is not accepted. Also, a frequency or a period with value of 0 is also unacceptable. However, attempting to command a value which is out of range does not produce an error. The driver simply saturates the value at the limits. Other InputsThe NI PCIe-6351 card does not support other inputs.Other OutputsThe NI PCIe-6351 card does not support other outputs.InterruptsThe NI PCIe-6351 card, or its driver, does not support any interrupt sources.WatchdogThe NI PCIe-6351 card does not support a watchdog timer. Report item - opens in a new window or tab Description current Shipping and payments eBay item number:291960425682 Seller assumes all responsibility for this listing. Item specifics Condition: New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. See all condition definitions- opens in a new window or tab ... Read moreabout the condition Marque: National Instruments Numéro de pièce fabricant: PCIe 6351 Clocks This card is part of the DAQmx API, and therefore the hardware clocks cannot be directly accessed. The clocks can only be set indirectly with the functions that utilize them such as the timebase VIs. Only one timebase VI may be present in a diagram. In addition, an immediate VI for the same type of channel can not be used even if they use different resources. For instance, if a HIL Read Timebase Analog (Scalar) VI is in use, you cannot also have a HIL Read Analog (Scalar) VI in the diagram, even if the two VIs do not read the same analog input channels. The HIL Read Timebase VI only supports a buffer size of 1. The same holds true of the task creation functions. When adding a timebase VI, you must change the Samples in buffer field or you will receive the error "The specified buffer size is not valid. It may be out of an acceptable range." Analog Inputs The NI PCIe-6351 supports 16 analog inputs (channels 0 to 15) with 16-bit resolution. The valid input ranges are ±10V, ±5V, ±2V, ±1V, ±0.5V, ±0.2V and ±0.1V. To change from the default range of ±10V, set the minimum and maximum for each channel in the Analog Inputs tab of the HIL Initialize VI. All of the analog inputs must have the same input range for this card. Analog Outputs The NI PCIe-6351 supports 2 analog outputs (channels 0 to 1) with 16-bit resolution. The valid output ranges are ±10V and ±5V . To change from the default range of ±10V, set the minimum and maximum for each channel in the Analog Outputs tab of the HIL Initialize VI. All of the analog outputs must have the same output range for this card. In order to have analog outputs set to a particular voltage when the block diagram is run or stopped, the analog outputs must be configured on the HIL Initialize VI's Analog Outputs tab. Set the Initial analog outputs and Final analog outputs to the desired voltage values. Digital I/O The NI PCIe-6351 supports 24 bidirectional digital lines (lines 0 to 23). A digital I/O line cannot be used as an input and output at the same time. Since the digital I/O lines may be individually programmed as inputs or outputs, the direction of each digital I/O line should be configured on the HIL Initialize VI's Digital I/O tab. To set the digital output values when the block diagram is run or stopped, set the Initial digital outputs and Final digital outputs to the desired values respectively. Encoder Inputs The NI PCIe-6351 supports 4 quadrature encoder inputs with 32-bit count values (channels 0 to 3). Note that since this card uses its counters for both encoder inputs and PWM outputs, you can only use a counter as either an encoder input or a PWM output channel. In order to set the encoder counters to a particular count or to change the default quadrature when the block diagram is run, the encoder inputs must be configured on the HIL Initialize VI's Encoder Inputs tab. The NI PCIe-6351 supports non-quadrature (count and direction), 1X quadrature, 2X quadrature and 4X quadrature. The NI PCIe-6351 does not support encoder filtering. PWM Outputs The NI PCIe-6351 supports 4 32-bit PWM Outputs using its 4 counters (channels 0 to 3). The PWM outputs on this card use a counter timebase rate of 100 MHz. Note that since this card uses its counters for both encoder inputs and PWM outputs, you can only use a counter as either an encoder input or a PWM output channel. In order to configure the PWM mode or frequency, or to set the value of the PWM outputs when the block diagram is run or stopped, the PWM outputs must be configured on the HIL Initialize VI's PWM Outputs tab. The Initial output checkbox should always be checked. Set the PWM output mode field to the desired output mode. The NI PCIe-6351 supports all the PWM output modes: duty cycle, frequency or period. See the description of the HIL Initialize VI for details on these modes. Then set the PWM output frequency in Hz or duty cycle field to the desired frequency or duty cycle. Note that this card is part of the National Instruments' DAQmx API and one of the limitations of this API is that you cannot output a PWM signal with a 0% or 100% duty cycle. Furthermore, a value of 0 for frequency is also not acceptable. When in duty cycle mode, the acceptable range of duty cycles are: Minimum duty cycle = (2/counter timebase rate) / (PWM signal period)Maximum duty cycle = 1 - Minimum duty cycle Note that the PWM signal period is the frequency inverted. Therefore, the acceptable value for duty cycle is related to the frequency at which the signal is being generated. In frequency mode, the acceptable range of frequencies are related to the duty cycle of the signal and are as follows: Minimum frequency = (counter timebase rate) / (counter bit resolution)Maximum frequency = 1 / (2(1/PWM duty cycle) (1/counter timebase rate)) In period mode, the maximum and minimum values for period are reciprocals of the minimum/maximum values for frequency above. As mentioned earlier in this section, the counters cannot be used as both encoder inputs and PWM outputs. Attempting to do so would produce an error message. Due to the DAQmx API limitations, a value of 0 (0%) and 1 (100%) for duty cycle is not accepted. Also, a frequency or a period with value of 0 is also unacceptable. However, attempting to command a value which is out of range does not produce an error. The driver simply saturates the value at the limits. Other Inputs The NI PCIe-6351 card does not support other inputs. Other Outputs The NI PCIe-6351 card does not support other outputs. Interrupts The NI PCIe-6351 card, or its driver, does not support any interrupt sources. Watchdog The NI PCIe-6351 card does not support a watchdog timer. Questions and answers about this item No questions or answers have been posted about this item. Ask a question - opens in a new window or tab Seller assumes all responsibility for this listing. Shipping and handling This item will ship to Thailand, but the seller has not specified shipping options. Contact the seller- opens in a new window or tab and request a shipping method to your location. Shipping cost cannot be calculated. Please enter a valid ZIP Code. 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