Omega Products OMB-DAQBOARD-3000 User Manual

OMB-DAQBOARD-3000 Series

Extended Warranty

Program

PCI 1-MHz,16-Bit Multifunction Boards

⻬ Low-Cost, 1-MHz, 16-Bit

Multifunction PCI Boards

⻬ 8 Differential or

16 Single-Ended Analog Inputs (Software Selectable per Channel)

⻬ User-Expandable—

Up to 64SE/32DE Analog Inputs Including Thermocouple Measurements

⻬ Four 16-Bit, 1-MHz

Analog Outputs with Continuous Waveform Capability

⻬ 24 High-Speed Digital

I/O Lines

⻬ Four 32-Bit Counter

Input Channels with Quadrature Encoder Capability

⻬ Ultra Low-Latency

Control Output Capability (as Low as 2 µs Latency)

⻬ Multiple DMA Channels ⻬ Includes DaqView

Software for Instant Setup, Real-Time Viewing, Data Logging, and Optional Frequency Domain Analysis

⻬ Support for Visual

Studio and Visual Studio.NET, Including Examples for Visual C++, Visual C#, Visual Basic, and Visual Basic.NET

⻬ Comprehensive

Drivers for DASYLab and LabVIEW

⻬ DaqCal Software

Application for Easy User Calibration

The new OMB-DAQBOARD-3000 Series comprises of highperformance PCI boards offering 16-bit/1-MHz multifunction synchronous I/O at very competitive prices. This is accomplished by incorporating a high level of integration, while focusing on features that provide valuable benefits to users.

The new OMB-DAQBOARD-3000 Series features a 16-bit/1-MHz A/D converter, 16 analog input channels (user expandable to 64), up to four 16-bit/1-MHz analog outputs, 24 high-speed digital I/O, 2 timer outputs, and four 32-bit counters. All analog I/O, digital I/O, and counter/timer I/O can operate synchronously and simultaneously, guaranteeing deterministic I/O timing among all signal types. Unique to the OMB-DAQBOARD-3000 Series is a high-speed, low-latency, highly deterministic control output mode that operates independent of the PC. In this mode both digital and analog outputs can respond to analog, digital, and counter inputs as fast as 2 µs; at least 1000 times faster than most other boards that rely on the PC for decision making.

Other Hardware Features Include:

• Encoder measurements up to 20 MHz, including Z-channel zeroing

• Frequency and pulse-width measurements with 20.83 ns resolution

OMB-DAQBOARD-3000, shown smaller than actual size

The OMB-DAQBOARD-3000 Series provides 1-MHz sampling, synchronous multifunction I/O, analog input expansion capability and extensive software support.

• Timing mode that can measure the time between two counter inputs to 20.83 ns resolution

• Self calibration

For end-users who would prefer the same functionality, but with a USB module, see the OMB-DAQ-3000 Series.

Software

Software support for the OMB-DAQBOARD-3000 Series includes support for Visual Studio and Visual Studio.NET, including examples for Visual C++, Visual C#, Visual Basic, and Visual Basic.NET, plus comprehensive drivers for DASYLab and LabVIEW. Also included is DaqView software for quick and easy setup and collection of data without programming, along with DaqCal software, an application for easy user calibration.

The new DaqView software that is included with the OMB-DAQBOARD-3000 Series is a comprehensive application that enables setup, data logging, and real-time data viewing without any programming skills.

The optional DaqView/Pro software adds features such as direct-toExcel enhancements, FFT analysis, statistics, etc., for a small, additional price.

ANALOG INPUT AND

MULTI-FUNCTION CARDS

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Thermocouple probes sold separately

TMQSS-125U-12

KMQSS-125U-12

Signal Connections

One 68-pin connector provides access to the 16SE/8DE analog input channels, 24 digital I/O lines, 6 counter/timer channels, and up to 4 analog outputs on each OMB-DAQBOARD-3000 Series board.

An externally accessible HDMI connector is also provided on the OMB-DAQBOARD-3000 Series, enabling a simple connection for the optional OMB-OMB-PDQ30 analog channel expansion module.

In addition to standard screw-terminal options for the OMB-DAQBOARD3000 Series, the OMB-DBK215 BNC connection module can be used to provide screw-terminal access to all I/O, plus 16 BNC connectors that can be user configured.

Analog Input

The OMB-DAQBOARD-3000 Series has a 16-bit, 1-MHz A/D coupled with 16 single-ended or 8 differential analog inputs. Seven softwareprogrammable ranges provide inputs from ±10 V to ±100 mV full scale (single-ended ±10 V range on OMB-DAQBOARD-3006). Each channel can be software-configured for a different range, as well as for single-ended or differential bipolar input. The hybrid PGIA on the OMB-DAQBOARD-3000 Series is guaranteed to settle to the specified accuracy while operating at the full 1 Msample/s rate.

OMB-DBK215, shown smaller than actual size.

OMB-PDQ30, shown smaller than actual size

JMQSS-125U-12

The OMB-DBK215 provides 16 BNC inputs or outputs and internal screw-terminal connections.

Analog Channel Expansion

Adding additional analog input channels for the OMB-DAQBOARD-3000 Series is easy using the optional OMB-PDQ30 expansion module. The OMB-PDQ30 connects to the OMB-DAQBOARD-3000 Series card via an OMB-CA-266-3 cable and does not occupy a PCI slot. The OMB-PDQ30 provides an additional 48SE/24DE analog inputs or 24 thermocouple inputs, software configured on a per-channel basis. The total channel capacity with an OMB-PDQ30 attached is 64 singleended or 32 differential inputs. The measurement speed of OMB-PDQ30 channels is the same 1 Msample/s as with on-board channels.

When configured to measure thermocouple channels, the system sample rate is 10 kHz per channel. This reduction in sample rate ensures that temperature measurements are accurate, low noise, and stable.

The OMB-DAQBOARD-3000 Series also supports up to 4 boards installed into one PC, effectively quadrupling the number of channels that can be attached to one PC.

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The OMB-TB-100, termination board with screw terminals, provides access to all OMB-DAQBOARD-3000 Series I/O. The OMB-TB-100 can be panel mounted or 19” rack mounted using optional OMB-RACK3 mounting kit.

Synchronous I/O

The OMB-DAQBOARD-3000 Series can make analog measurements and read digital and counter inputs, while synchronously generating up to 4 analog outputs as well as digital pattern outputs. Additionally, digital and counter inputs do not affect the overall A/D rate because they use no time slot in the scanning sequencer. For example, one analog input channel can be scanned at the full 1-MHz A/D rate along with digital and counter input channels. The 1MHz A/D rate is unaffected by the additional digital and counter channels. Many other data acquisition boards provide no capability to scan digital/counter channels along with analog channels, in which case digital and counter channels must be read asynchronously, which leads to a non-deterministic collection of data.

OMB-CA-266-3, OMB-DAQBOARD-3000 to OMB-PDQ30 cable

Input Scanning

OMB-DAQBOARD-3000 Series Scanning Example

µs

Programmable,

from 1

µs

up to

6 hours

Scan group

All channels within a scan group are measured at a fixed 1

µs/channel

All digital and counter channels sampled at start of scan

Gain can be programmed for each channel dynamically by the sequencer

Channels can be sampled dynamically by the sequencer

Channel #2 #4 #3 #2 #5 #6 #8 #12

Gain x1 x10 x5 x2 x5 x20 x50 x100

SE DE DE SE SE DE DE SE or DE

The OMB-DAQBOARD-3000 has several scanning modes to address a wide variety of applications. A 512 location scan buffer can be loaded by the user with any combination of analog input channels. All analog input channels in the scan buffer are measured sequentially at 1 µs per channel. The user can also specify that the sequence repeat immediately, or repeat after a programmable delay from 0 to 19 hours, with 20.83 ns resolution. For example, in the fastest mode, with a 0 delay, a single analog channel can be scanned continuously at 1 Msamples/s; two analog channels can be scanned at 500 Ksamples/s each; 16 analog input channels can be scanned at 62.5 Ksamples/s.

OMB-DAQBOARD-3000 digital inputs and counter inputs can be read in several modes. First, via software the digital inputs or counter inputs can be read asynchronously at any time before, during, or after an analog input scan sequence. This mode is not deterministic as to exactly when the digital or counter input was read relative to an analog input channel.

In either of the two synchronous modes, the digital inputs and/or counter inputs are read with deterministic time correlation to the analog inputs. In the once-per-scan mode, all of the enabled digital inputs and counter inputs are read

during the first analog measurement of an analog input scan sequence. The advantage of this mode is that the digital and counter inputs do not occupy an analog input time slot and therefore do not reduce the available bandwidth for making analog input measurements. For example, assume all 24 bits of digital input are enabled, all four 32-bit counters are enabled, and eight channels of analog inputs are in the scan sequence at the full 1 µs/channel rate. At the beginning of each analog input scan sequence, which would be 8 µs in total duration, all digital inputs and counter inputs will be measured and sent to the PC during the first µs of the analog scan sequence.

In the other synchronous mode, digital inputs are scanned every time an analog input channel is scanned. For example, if eight analog inputs are scanned at 1 µs per channel continuously, and 24 bits of digital inputs are enabled, then the 24 bits of digital inputs will be scanned at 24 bits per 1 µs. If counters are enabled in this mode, they will be scanned at once per scan, in the same manner as in the prior example.

OMB-DAQBOARD-3000, $899, attached to an OMB-PDQ30 expansion module, via an OMB-CA-266-3 cable, all shown smaller than actual size

Output Timing

The digital and analog outputs on the OMB-DAQBOARD-3000 can be updated asynchronously or synchronously in several modes. In the asynchronous mode, digital and analog outputs can be updated at any time before, during, or after an analog input sequence. The maximum update rate in this mode is non-deterministic and is entirely dependent on the PC processor speed, the operating system, and the programming environment.

In the synchronous output modes, the outputs can be updated directly from memory in the PC, or as the direct result of an input from either an analog channel, digital channel, or counter channel. When updated from memory in the PC (via DMA), the rate by which the output can be specified in 20.83 ns intervals, and all outputs can be updated synchronously at a maximum rate of 1 µs. For example, all four 16-bit analog outputs can be generating different waveforms from PC memory with a 1 µs per channel update rate, while up to 16 bits of digital pattern could be generated from PC memory concurrently at the 1 µs per 16-bit update rate. Outputs can also be specified to update concurrently with inputs, so there is an exact timing correlation between inputs and outputs.

ANALOG INPUT AND

MULTI-FUNCTION CARDS

The other synchronous method of output control is where an output, either digital or analog, is associated with any input—analog, digital, or counter.

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