The PCI-2500 Series includes the following hardware:
The PCI-2500 Series support the following UL and UL for .NET features.
Functions
UL: cbAIn(), cbAInScan(), cbFileAInScan(), cbAPretrig()*, cbATrig(), cbALoadQueue()
UL for .NET: AIn(), AInScan(), FileAInScan(), APretrig()*, ATrig(), ALoadQueue()
* Pretrigger capability is implemented in software. PretrigCount must be less than the TotalCount and cannot exceed 100000 samples. TotalCount must be greater than the PretrigCount. If a trigger occurs while the number of collected samples is less than the PretrigCount, that trigger will be ignored. Requires a call to cbSetTrigger/SetTrigger for the analog trigger type.
Options
BACKGROUND, BLOCKIO, CONTINUOUS, CONVERTDATA, DMAIO, EXTCLOCK, EXTTRIGGER, HIGHRESRATE
With EXTTRIGGER mode, the first channel in the scan is the analog trigger channel.
HighChan
PCI-2517, PCI-2515, PCI-2513:
0 to 15 in single-ended mode, 0 to 7 in differential mode
PCI-2511:
0 to 15 in single-ended mode
Rate
Up to 1 MHz
Range
PCI-2517, PCI-2515, PCI-2513:
| BIP10VOLTS (±10 volts) | BIPPT5VOLTS (±0.5 volts) |
| BIP5VOLTS (±5 volts) | BIPPT2VOLTS (±0.2 volts) |
| BIP2VOLTS (±2 volts) | BIPPT1VOLTS (±0.1 volts) |
| BIP1VOLTS (±1 volt) |
PCI-2511:
| BIP10VOLTS (±10 volts) |
Functions
UL: cbAOut(), cbVOut(), cbAOutScan()
UL for .NET: AOut(), VOut(), AOutScan()
Options
ADCCLOCK, ADCCLOCKTRIG, BACKGROUND, CONTINUOUS, EXTCLOCK, NONSTREAMEDIO, SIMULTANEOUS
NONSTREAMEDIO can only be used with the number of samples set equal to the size of the FIFO or less. The FIFO holds 524288 samples.
HighChan
PCI-2517: 0 to 3
PCI-2515: 0 to 1
Rate
1 MHz
Range
Ignored - not programmable; fixed at BIP10VOLTS (±10 volts)
DataValue
0 to 65,535 (Refer to 16-bit values using a signed integer data type for information on 16-bit values using unsigned integers.)
Pacing
Hardware pacing, external or internal clock supported.
Configuration
UL: cbDConfigPort()
UL for .NET: DConfigPort()
PortNum
FIRSTPORTA, FIRSTPORTB, FIRSTPORTC
PortType
FIRSTPORTA
Port I/O
UL: cbDIn(), cbDOut(), cbDInScan(), cbDOutScan()*
UL for .NET: DIn(), DOut(), DInScan(), DOutScan()*
*FIRSTPORTA and FIRSTPORTB must be set for output to use this function. Refer to DIO PortNum in the Hardware Considerations section below for more information.
Options
ADCCLOCK, ADCCLOCKTRIG, BACKGROUND, CONTINUOUS, EXTCLOCK, EXTTRIGGER, HIGHRESRATE, NONSTREAMEDIO, WORDXFER,
The EXTTRIGGER option can only be used with the cbDInScan() function. You can use the cbSetTrigger() function to program the trigger for rising edge, falling edge, or the level of the digital trigger input (TTL).
The WORDXFER option can only be used with FIRSTPORTA.
The NONSTREAMEDIO, ADCCLOCKTRIG, and ADCCLOCK options can only be used with the cbDOutScan() function.
The NONSTREAMEDIO option can only be used with the number of samples set equal to the size of the FIFO or less. The FIFO holds 524288 samples.
Rate
12 MHz
PortNum
FIRSTPORTA, FIRSTPORTB, FIRSTPORTC
DataValue
0 to 255
0 to 65,535 using the WORDXFER option with FIRSTPORTA
Bit I/O
UL: cbDBitIn(), cbDBitOut()
UL for .NET: DBitIn(), DBitOut()
PortType
FIRSTPORTA
BitNum
0 to 23
Functions
UL: cbCIn(), cbCIn32(), cbCConfigScan(), cbCInScan(), cbCClear()
UL for .NET: CIn(), CIn32(), CConfigScan, CInScan(), CClear()
Note: Counters on these boards are zero-based (the first counter number is "0").
Rate
6 MHz
CounterNum
0 to 3
Options
BACKGROUND, CONTINUOUS, EXTTRIGGER
You can use the cbSetTrigger() function to program the trigger for rising edge, falling edge, or the level of the digital trigger input (TTL).
Mode
When using Period and PulseWidth modes, note that the initial period is dependent upon the frequency of the signal being measured, a signal is required in order to latch data into the register, and the first sample in a scan is always zero, since it is not data that has been latched by the measured signal.
When using cbCIn()/CIn() and cbCIn32()/CIn32, PERIOD, PULSEWIDTH, and ENCODER modes are not available.
LoadValue
0 to 65,535 (Refer to "16-bit values using a signed integer data type" for information on 16-bit values using unsigned integers.)
Functions
UL: cbTimerOutStart(), cbTimerOutStop()
UL for .NET: TimerOutStart(), TimerOutStop()
TimerNum
0 to 1
Frequency
15.260 Hz to 1.0 MHz
Functions
UL: cbSetTrigger()
UL for .NET: SetTrigger()
TrigType
TRIGABOVE, TRIGBELOW, TRIGHIGH, TRIGLOW, TRIGPOSEDGE, TRIGNEGEDGE
Digital triggering (TRIG_HIGH, TRIG_LOW, TRIGPOSEDGE, TRIGNEGEDGE) is not supported for pre-trigger acquisitions (cbAPretrig() function).
Analog triggering (TRIGABOVE, TRIGBELOW) is not supported for the cbDInScan() function and the cbCInScan() function.
Threshold
Analog hardware triggering, 12-bit resolution: 0 to 4,095 (supported for cbAInScan() only)
Analog software triggering, 16-bit resolution: 0 to 65,535 (supported for cbAPretrig() only)
Note: When the cbAInScan() EXTTRIGGER mode is enabled, the first channel in the scan is the analog trigger channel.
Functions
UL: cbDaqInScan()
UL for .NET: DaqInScan()
Options
BACKGROUND, BLOCKIO, CONTINUOUS, CONVERTDATA, DMAIO, EXTCLOCK, EXTTRIGGER, HIGHRESRATE
ChanTypeArray
ANALOG, DIGITAL8, DIGITAL16, CTR16, CTR32LOW, CTR32HIGH, SETPOINTSTATUS
ChanArray
ANALOG:
DIGITAL8: FIRSTPORTA, FIRSTPORTB, FIRSTPORTC
DIGITAL16: FIRSTPORTA
CTR16: 0-3 counters
CTR32LOW: 0-3 counters
CTR32HIGH: 0-3 counters
SETPOINTSTATUS: 16-bit port that indicates the current state of the 16 possible setpoints.
ChanTypeArray flag value:
Rate
Analog: Up to 1 MHz.
Digital: Up to 12 MHz if no analog channel is selected. Otherwise up to 1 MHz.
Counter: Up to 12 MHz if no analog channel is selected. Otherwise up to 1 MHz.
GainArray
ANALOG only; ignore for other ChanTypeArray values.
PCI-2517, PCI-2515, PCI-2513:
| BIP10VOLTS (±10 volts) | BIPPT5VOLTS (±0.5 volts) |
| BIP5VOLTS (±5 volts) | BIPPT2VOLTS (±0.2 volts) |
| BIP2VOLTS (±2 volts) | BIPPT1VOLTS (±0.1 volts) |
| BIP1VOLTS (±1 volt) |
PCI-2511:
Ignored; fixed at BIP10VOLTS (±10 volts)
ChanCount
Number of elements in ChanArray, ChanTypeArray and GainArray. Up to 512 elements max.
PretrigCount
100000 max. This argument is ignored if the EXTTRIGGER option is not specified.
Functions
UL for .NET: DaqSetTrigger()
TrigSource
TRIG_IMMEDIATE, TRIG_EXTTTL, TRIG_ANALOGHW, TRIG_ ANALOGSW, TRIG_DIGPATTERN, TRIG_COUNTER, TRIG_SCANCOUNT
TrigSense
RISING_EDGE, FALLING_EDGE, ABOVE_LEVEL, BELOW_LEVEL, EQ_LEVEL, NE_LEVEL
TrigEvent
START_EVENT, STOP_EVENT
Functions
UL for .NET: DaqSetSetpoints()
SetpointFlagsArray
SF_EQUAL_LIMITA, SF_LESSTHAN_LIMITA, SF_GREATERTHAN_LIMITB, SF_OUTSIDE_LIMITS, SF_HYSTERESIS, SF_UPDATEON_TRUEONLY, SF_UPDATEON_TRUEANDFALSE
SetpointOutputArray
SO_NONE, SO_FIRSTPORTC, SO_TMR0, SO_TMR1
Also available for PCI-2515 and PCI-2517:
SO_DAC0, SO_DAC1
Also available for PCI-2517:
SO_DAC2, SO_DAC3
LimitAArray
Any value valid for the associated input channel.
Ignored for SF_GREATERTHAN_LIMITB
LimitBArray
Any value valid for the associated input channel and less than LimitA.
Ignored for SF_EQUAL_LIMITA, SF_LESSTHAN_LIMITA
Output#Array
For SetpointOutputArray = SO_NONE: Ignored
For SetpointOutputArray = SO_FIRSTPORTC: 0 to 65,535
For SetpointOutputArray = SO_TMR#: 0 (to disable the timer) or 15.26 to 1000000 (to set the output frequency)
For SetpointOutputArray = SO_DAC#: Voltage values between –10 and +10
OutputMask#Array>
For SetpointOutputArray = SO_FIRSTPORTC: 0 to 65,535
For SetpointOutputArray = all other values: Ignored
SetpointCount
0 (to disable setpoints) to 16
Functions
UL: cbDaqOutScan()
UL for .NET: DaqOutScan()
Options
BACKGROUND, CONTINUOUS, EXTCLOCK, SIMULTANEOUS, NONSTREAMEDIO, ADCCLOCKTRIG, ADCCLOCK
ChanType
ANALOG, DIGITAL16
ChanArray
ANALOG:
PCI-2517: 0 to 3
PCI-2515: 0 to 1
DIGITAL16:
FIRSTPORTA (FIRSTPORTB must be configured as an output)
Rate
ANALOG: Up to 1 MHz.
DIGITAL16: Up to 12 MHz if no analog channel is selected. Otherwise up to 1 MHz.
Range
Ignored
For input and output scans, the count must be set to an integer multiple of the number of channels or a BADCOUNT error is returned.
Sampling and update rates are system-dependent. Data overruns/underruns may occur with higher sampling rates when using BACKGROUND and CONTINUOUS modes. To avoid this, use a larger buffer/count size, or use NONSTREAMEDIO mode, if supported.
The minimum size buffer is 256 for cbAOutScan(), cbDInScan(), and cbDOutScan(). Values less than that result in a BADBUFFERSIZE error.
For most applications, settling time should be left at the default value of 1 µs. However, if you are scanning multiple channels and one or more channels are connected to a high impedance source, you may get better results by increasing the settling time. Keep in mind that increasing the settling time reduces the maximum acquisition rate. You can set the time between A/D conversions with the ADC Settling Time option in InstaCal. Select between 1 µs, 5 µs, 10 µs, or 1 ms.
You enable setpoints with the SETPOINT_ENABLE flag. This flag must be OR'ed with the ChanTypeArray argument values. You set the setpoint criteria with the cbDaqSetSetpoints()/DaqSetSetpoints(). The number of channels set with the SETPOINT_ENABLE flag must match the number of setpoints set by the SetpointCount argument (cbDaqSetSetpoints()/DaqSetSetpoints()).
With NONSTREAMEDIO mode, you can output non-streamed data to a specific DAC output channel. The aggregate size of the data output buffer must be less than or equal to the size of the internal data output FIFO in the device. The FIFO holds 524288 samples. This allows the data output buffer to be loaded into the device's internal output FIFO. Once the sample data are transferred or downloaded to the device, the device is responsible for outputting the data. You can't make any changes to the output buffer once the output begins.
Specify the ADCCLOCKTRIG option to trigger a data output operation upon the start of the ADC clock.
For cbDOutScan()/DOutScan() and cbDaqOutScan()/DaqOutScan(), FIRSTPORTA and FIRSTPORTB are treated as one 16-bit port. These functions can only be used with FIRSTPORTA. You must configure both FIRSTPORTA and FIRSTPORTB for output using the cbDConfigPort() function.
You can operate up to four PCI-2500 Series boards synchronously by setting the direction of the A/D and D/A pacer pins (XAPCR or XDPCR) in InstaCal.
On the board used to pace each device, set the pacer pin that you want to use (XAPCR or XDPCR) for Output. On the board(s) that you want to synchronize with this board, set the pacer pin that you want to use (XAPCR or XDPCR) for Input.
You set the direction using the InstaCal configuration dialog's XAPCR Pin Direction and XDPCR Pin Direction settings. If you have an older version of InstaCal, these settings might be labeled "ADC Clock Output" (set to Enabled to configure XAPCR for output) or "DAC Clock Output" (set to Enabled to configure XDPCR for output).
Wire the pacer pin configured for output to each of the pacer input pins that you want to synchronize.
To configure a counter channel as a multi-axis quadrature encoder, use the cbCConfigScan()/CConfigScan() Mode argument values to set a specified counter to encoder mode, set the encoder measurement mode to X1, X2, or X4, and then set the count to be latched either by the internal "start of scan" signal (default) or by the signal on the mapped channel.
You can optionally perform the following operations:
The CConfigScan() method's Bit32 counter mode option only affects counter resolution for asynchronous calls (CIn() and CIn32()), and only when the counter is configured for StopAtMax.
This mode is recommended for use only with CIn32(). Using the Bit32 option with CIn() is not very useful, since the value returned by CIn() is only 16 bits. The effect is that the value returned by CIn() rolls over 65,535 times before stopping.
When using Period and PulseWidth modes, note that the initial period is dependent upon the frequency of the signal being measured, a signal is required in order to latch data into the register, and the first sample in a scan is always zero, since it is not data that has been latched by the measured signal.
Concurrent operations are not allowed. If you invoke a function while another function is already running on the device, the ALREADYACTIVE error is returned.