Alldaq Adq-250 cpci User manual

Manual

Rev. 0.9 EN

ADQ-250 cPCI/PCIe

Isolated 8 channel voltage measurement board

2

Manual ADQ-250 series Rev. 0.9

Imprint

Manual ADQ-250 series

Rev. 0.9

Date: 11/20/2015

Manufacturer and Support

ALLNET®and ALLDAQ®are registered trademarks of the ALLNET®GmbH Computersysteme. For questi-

ons, problems and product information please contact the manufacturer directly:

ALLNET®GmbH Computersysteme

Division ALLDAQ

Maistrasse 2

D-82110 Germering

Support

Email: support@alldaq.com

Phone: +49 (0)89 894 222 – 74

Fax: +49 (0)89 894 222 – 33

Internet: www.alldaq.com/support

All information contained in this manual has been reviewed with great care. Nevertheless errors cannot

be eliminated completely. Specications and the content of this manual are subject to change without

notice.

We are appreciated for notication of possible errors.

Mentioned trademarks are registered trademarks of the respective companies.

3

Manual ADQ-250 series Rev. 0.9

Table of Content

1. Introduction �� 5

1.1 Scope of delivery �� 5

1.2 Safety instructions �� 5

1.3 Location of installation and mounting�� 6

1.4 Short description �� 7

1.5 System requirements �� 8

1.5.1 Hardware �� 8

1.5.2 Software �� 8

2. Initial operation �� 9

2.1 Installing the board �� 9

2.2 Software installation �� 10

2.2.1 Installation under Windows�� 10

2.3 Test programm �� 10

2.4 ALLDAQ Manager �� 11

2.5 Balancing/Calibration�� 12

2.5.1 Factory balancing �� 12

2.5.2 User balancing�� 12

2.5.3 DAkkS calibration �� 13

3. Functional groups �� 15

3.1 Block diagram�� 15

3.2 Analog acquisition �� 16

3.2.1 Voltage inputs�� 16

3.2.1.1 Wiring �� 17

3.2.1.1.1 Standard measurement range �� 18

3.2.1.1.2 Extended measurement range�� 18

3.2.1.1.3 Isolation voltage �� 19

3.2.1.2 External trigger A/D section �� 19

3.2.2 Programming�� 20

3.2.2.1 Single value acquisition�� 20

3.2.2.2 Timer-controlled acquisition �� 20

3.3 Bi-directional digital I/Os �� 21

3.3.1 Wiring�� 21

3.3.2 Programming�� 22

4

Manual ADQ-250 series Rev. 0.9

3.3.2.1 Single value input/output �� 22

3.3.2.2 Streaming Operation �� 22

3.3.2.3 Interrupt modes �� 22

3.3.2.3.1 Bit change �� 22

4. Appendix�� 25

4.1 Specications �� 25

4.2 Pinouts�� 29

4.2.1 MMCX connectors (analog inputs) �� 29

4.2.2 HDMI connector (ST9)�� 30

4.2.3 Auxiliary connector (ST10) �� 31

4.2.4 Terminal block for ADQ-250�� 32

4.3 Accessories �� 33

4.4 Manufacturer and support �� 33

4.5 Important notes �� 34

4.5.1 Packaging ordinance �� 34

4.5.2 Recycling note and RoHS compliance �� 34

4.5.3 CE certication �� 34

4.5.4 Warranty �� 34

Introduction 5

Manual ADQ-250 series Rev. 0.9 Introduction

1. Introduction

Please check the box and the content for damages and completeness before taking the device

into operation. If any fault should be detected please inform us immediately.

• Shows the packing some evidence to damaging during transport?

• Any traces of use to be recognized at the device?

The device may not be taken into operation if it is damaged. In case of doubt please contact our

technical service department.

Please read – before installing the device – this manual watchfully!

1.1 Scope of delivery

• ALLDAQ board of ADQ-250 series for CompactPCI (4 HP) or PCI Express

• Data medium with driver software and documentation

Optional as bundle including:

• Special terminal block for ADQ-250 series (ADQ-TB-ADQ-250-HUT)

• 8 coaxial cables from MMCX male connector to MMCX male connector, length: 1m

(ADQ-CR-MMCXM-MMCXM-8x-1m)

HDMI cable, length: 1m (ADQ-HDMI-MM-1m)

1.2 Safety instructions

Necessarily note the following advices:

• Necessarily avoid touching of cables and connectors inside the PC with the board.

• Ensure sufcient air circulation in the CompactPCI rack.

• Never expose the device to direct solar radiation during operation.

• Never run the device near heat sources.

• Protect the device before humidity, dust, liquids and fumes.

• Don´t use the device in damp rooms and never in explosive areas.

• A repair may only be done by trained and authorized persons.

• Please note before initial operation of the device especially when using voltages greater

42 V the installation rules and all relevant standards (including VDE standards).

• We recommend to tie all unused inputs basically to the corresponding reference ground to

avoid cross talk between the input lines.

• Before connecting or removing cables with your board always disconnect your eld wiring

from the power supply.

6 Introduction

Introduction Manual ADQ-250 series Rev. 0.9

• Ensure that no static discharge can occur passing the board when handling it. Follow the

standard ESD safety precautions (see also chapter 2.1 on page 9).

• Never connect devices with voltage-carrying parts, especially not with mains voltage.

• The user must take appropriate precautions to avoid unforseeable misuse.

For damages caused by improper use and subsequent damages any liability by ALLNET®GmbH

Computersysteme is excluded.

1.3 Location of installation and mounting

The CompactPCI resp. PCI-Express boards of the ADQ-250 series are voltage measurement

boards for industrial use. Depending on the version the models of the ADQ-250 series are…

… for installation into a free PCI Express slot (ADQ-255/256/258-PCIe), or

… for installation into a free CompactPCI slot (ADQ-255/256/258-cPCI).

PC boards may not be taken into operation outside of appropriate PC systems. For the order of

operation on installing the devices please read the chapter „Initial operation“ in this manual

and the documentation of your PC.

The ADQ-250 series may only be used in dry rooms. PC boards are not for use with tough envi-

ronment conditions (e.g. outside). Ensure a very good ventilation. Take care for proper tting of

the connection cables. Installation has to be done in a way that the cables (PC connection and

eld wiring) are not in tension else they could release itself.

Introduction 7

Manual ADQ-250 series Rev. 0.9 Introduction

1.4 Short description

The measurement boards of the ALLDAQ ADQ-250 series are CompactPCI or PCI-Express

boards for high precision voltage measurements in industry and laboratory with a bandwidth

of up to 280kHz. By the potential-free voltage inputs and the full differential sampling parasitic

effects like ground loops and common mode errors can be largely rejected. The input voltage

range is from -10.24V to +10.24V for full ±10V peak to peak. Optional an input voltage range

of ±102.4V is possible. The 8 analog input channels are electrically isolated up to 700 VRMS

between each other and against PC ground.

Depending on the application you can choose between 3 models: the ADQ-255 with 8 x 16 bit

A/D converters and 250 kS/s sample rate, the ADQ-256 with 8 x 16 bit A/D converters and

2 MS/s sample rate and the ADQ-258 with 8 high-precision 18 bit A/D converters sampling with

1.6MS/s. All channels are always sampled synchronously. The values can be acquired as single

values or timer-controlled. On demand the measurement can be started or stopped by two

external trigger inputs, which are isolated against PC ground and to the analog inputs.

ADQ-255 ADQ-256 ADQ-258

PC interface CompactPCI or PCI Express

Analog inputs 8 differential 8 differential 8 differential

Resolution 16bit 16bit 18bit

Sampling rate 250 kS/s 2 MS/s 1.6 MS/s

Bandwidth 50 kHz (0 dB) 280 kHz (-3 dB) 280 kHz (-3 dB)

Table 1: Overview ADQ-250 series

The 8 bit TTL digital I/O port can be attached by the HDMI connector at the front panel. If the

digital port is congured as input the inputs can be monitored on bit-change and can generate

an interrupt.

8 Introduction

Introduction Manual ADQ-250 series Rev. 0.9

1.5 System requirements

1.5.1 Hardware

• PC system with a current Intel®or compatible processor based on the x86(-64) architecture

• A free PCI Express x1 resp. CompactPCI slot (4 HP)

1.5.2 Software

System Driver

• Windows Vista (SP2) (32 and 64 bit)

• Windows 7 (32 and 64 bit)

• Windows 8/8.1 (32 and 64 bit)

• Linux on request

ALLDAQ-Manager

By the ALLDAQ-Manager you have central access to the software developer kit (SDK), several

utility programs and help les. The ALLDAQ-Manager can be found in the info area of the

taskbar (usually at the bottom right corner of the desktop) or by the Windows Start menu. See

also chapter 2.4 on page 11.

Software Developer Kit (SDK)

A function library (API) with example code for high-level language programming is included

Please note the corresponding help le included with the SDK.

LabVIEW Support

A library with virtual instruments (VIs) for easy access to the ALLDAQ hardware is included with

the ALLDAQ SDK.

MATLAB Support

An adapted MATLAB®interface for the ALLDAQ hardware with examples and a help le is

included with the ALLDAQ SDK.

Initial operation 9

Manual ADQ-250 series Rev. 0.9 Initial operation

2. Initial operation

2.1 Installing the board

Please read the manual of your computer prior installing the board regarding the installation of

additional hardware components.

Handling the board should be done with care to ensure that the device will not be damaged

by electrostatic discharge (ESD), mechanical stress or current surges. Ensure to take all safety

precautions to avoid an electric shock and follow the standard ESD safety precautions.

Follow this order of operation:

• Unplug the mains plug of your PC system.

• Open the housing as described in the manual of your PC system.

• Make sure that electrostatic discharge cannot occur via the board when you plug it in. At

least one hand should be grounded in order to dissipate any static charge.

• Only for PCI Express models: for the +5V supply of the board an additional supply by the

PC power supply is neccessary (current consumption without load 300mA typ.). Connect

a free power connector of your PC (e. g. as used for powering drives) with the appropriate

„MOLEX“ male connector of your PCIe board (see the following diagram). On demand ad-

apter (cables), e.g. from 13-pin SATA power supply male connector to 4-pin MOLEX female

connector are available in specialized shops.

+5 V (PC)

GND_PC

n. c.

Figure 1: 5 V supply for PCI Express models

Attention: If you take the board into operation without connecting the +5V supply

the board can be irreverseable damaged!

10 Initial operation

Initial operation Manual ADQ-250 series Rev. 0.9

• Push the plug-in board carefully and with only a little force into the appropriate slot. Check

that the board is not cant and fully plugged in.

• If you want to use the additional mounting bracket for the TTL digital I/Os choose two slots

side by side for installation. Remove (if neccessary) an additional blind bracket for the slot.

• Screw all mounting brackets.

• Close the housing as described in the manual of your PC system

2.2 Software installation

2.2.1 Installation under Windows

Basically use the following procedure:

Download the driver package and run the installation program on your computer before instal-

ling the board.

After installing the board (see chapter „2.1 Installing the board“ on page 9) Windows re-

cognizes the new hardware and starts the driver installation automatically. The installation is

Windows compliant – but the procedure can differ depending on your Windows version.

Additional to the driver a software package is included with your board which you can install

on your computer. Run the le ALLDAQDriverSetup32.exe for 32 bit systems resp. ALLDAQ-

DriverSetup64.exe for 64 bit systems from the included data medium or in the target directory

of your download. After successful installation the ALLDAQ-Manager can be found in the info

area of the taskbar (usually at the bottom right corner) or by the Windows Start menu. By the

ALLDAQ-Manager you have access to the software developer kit (SDK), several utility programs

and help les.

2.3 Test programm

Simple test programs can be found in the ALLDAQ-SDK. For each programming language a sub-

directory „Applications“ can be found with test programs for your ALLDAQ hardware.

With the ALLDAQ-Manager you can retrieve several information of the installed ADQ hardware.

Initial operation 11

Manual ADQ-250 series Rev. 0.9 Initial operation

2.4 ALLDAQ Manager

The ALLDAQ-Manager under Windows gives you a quick overview of the parameters of the

ALLDAQ driver system and offers a central access to software tools and help les. You can nd

the ALLDAQ-Manager in the info area of the taskbar (as a rule at the bottom right) or via the

Windows start menue.

ALLDAQ-Manager in overview:

• Information on the installed ALLDAQ hardware in overview

• XML export of the driver conguration for archiving and support

• Tool for interactive illustration of the pin-assignment with the possibility to generate a PDF

• Tool for user balancing

• Convenient access to the software developer kit (SDK) for high-level language program-

ming with examples and simple test programs

• Quick access to the help les

Figure 2: ALLDAQ-Manager and SDK programs

12 Initial operation

Initial operation Manual ADQ-250 series Rev. 0.9

2.5 Balancing/Calibration

By the ALLDAQ-Manager you can select which balancing data record (factory or user balancing)

should be activated when booting the computer. You can change the setting via the ALLDAQ-

Manager.

2.5.1 Factory balancing

The ADQ-250 series will be balanced before delivery. The balancing data will be stored into an

EEPROM. If a re-balancing should be neccessary please contact our service department. For

contact details see chapter 4.4 on page 33.

2.5.2 User balancing

For a precise voltage measurement considering multiple error factors, e. g. caused by the eld

wiring you can balance the analog inputs by yourself. After balancing the application-specic

balancing data can be stored beside the factory balancing data into an EEPROM.

Please follow the procedure below:

1. Power-on the system with the ADQ-250 series.

2. Connect the part of the eld wiring you want to include into the balancing.

3. Apply a constant voltage and monitor the voltage by a high-precision voltmeter (e. g.

multimeter). Make sure, that the voltmeter has a higher accuracy than the respective board

of the ADQ-250 series.

4. Run the balancing tool in the ALLDAQ-Manager and follow the procedure in the appropria-

te help le. See also chapter 2.4 on page 11.

Note: Repeat the balancing for each channel separately.

TIP: To achieve the best accuracy, we recommend to set that sample rate in the balancing tool

which one you want to use in your measurement later.

Figure 3: Wiring for balancing

Initial operation 13

Manual ADQ-250 series Rev. 0.9 Initial operation

2.5.3 DAkkS calibration

We collaborate with independent test laboratories accredited by the Deutsche Akkreditierungs-

stelle GmbH (DAkkS). On-demand please contact our service department. For contact details

see chapter 4.4 on page 33.

14 Functional groups

Functional groups Manual ADQ-250 series Rev. 0.9

Functional groups 15

Manual ADQ-250 series Rev. 0.9 Functional groups

3. Functional groups

3.1 Block diagram

ADQ-250

0110101001101110

A

D

AI_0+

AI_0-

A

D

ST1

ST8

Isolation

TRIG_A

TRIG_B

VCC_OUT (+5 V)

AI_7+

AI_7-

DIO_7…0

GND_PC

TTL-I/Os

(1 x 8 bit Port)

AI_0..7

Ext. Trigger

DIO_7..0

GND_TRIG

ST9

Address-/

data bus

Interrupt

Timer

Control logic

Value FIFO

Trigger logic

Molex connector

(+5V / +12V for PCIe)

CompactPCI interface / PCI-Express interface

HDMI connector

Figure 4: Block diagram ADQ-250 series

• 8 isolated voltage measurement channels

• 2 isolated external digital trigger inputs

• 8 bi-directional TTL digital I/Os

16 Functional groups

Functional groups Manual ADQ-250 series Rev. 0.9

3.2 Analog acquisition

Nyquist´s sampling theorem (Oversampling)

Nyquist´s sampling theorem tells us, that the sample rate for a periodic signal, whose maximum

frequency component should be fPmax,mustbeatleasttwiceashigh,i.e.2•fPmax or higher.

In practice we recommend to choose a sampling rate by the factor 5 or 10 higher than fPmax to

replicate the signal form truely. This issue is also called "oversampling".

Example:

The max. frequency component fPmax. (1/tP) of the signal frequency should be 10 kHz. The sam-

ple rate fS(1/tS)shouldbeatleast5•10kHz=50kHz.

Figure 5: Nyquist-Shannon sampling theorem

3.2.1 Voltage inputs

The ADQ-250 series provides 8 voltage inputs with electrical isolation of up to 700 VRMS bet-

ween each other and towards PC ground. Each of the 8 channels is assembled with a 16 bit or

18 bit ADC and can sample with up to 2.0 MS/s synchronously (depending on model).

The differential input channels are optimized for signal bandwidth of 280 kHz (-3dB). Because

of the lower sample rate of the ADQ-255 you can acquire signals with a bandwidth of about

50 kHz without an appreciable decrease of the amplitude (0 dB) with this model. By the poten-

tial-free voltage inputs and the full differential sampling parasitic effects like ground loops and

common mode errors can be largely rejected. The input voltage range is standard from -10,24 V

to +10,24V for signals with a full swing of ±10V. Optional an input voltage range of ±102,4V is

possible. The high A/D converter resolution of 16bit resp. 18bit (depending on model) enables

a very precise measurements without the need of switching between different measurement

ranges.

All channels are always sampled synchronously. The values can be acquired as single values

or timer-controlled. On demand the measurement can be started or stopped by two external

trigger inputs, which are isolated towards PC ground and to the analog channels.

Functional groups 17

Manual ADQ-250 series Rev. 0.9 Functional groups

ADQ-255 ADQ-256 ADQ-258

PC interface CompactPCI or PCI Express

Analog inputs 8 differential 8 differential 8 differential

Resolution 16bit 16bit 18bit

Sampling rate 250 kS/s 2 MS/s 1.6 MS/s

Bandwidth 50 kHz (0 dB) 280 kHz (-3 dB) 280 kHz (-3 dB)

Signal noise ratio 91.7 dBFS, RMS 91.7 dBFS, RMS 102.3 dBFS, RMS

Input voltage range ±10.24 V ±10.24 V ±10.24 V

Input inpedance Ri> 100 MΩ, typ. 240 MΩ, Ci=4pF

Table 2: Overview analog inputs

3.2.1.1 Wiring

For proper signed measuring connect the line with the positive potential to the inner conductor

AI_x+ and the line with the negative potential to the outer conductor AI_x–.

We recommend to use high-quality coaxial cables alternativly from MMCX male connector to

MMCX male connector (Art. No. 122585) or from MMCX male connector to BNC male connec-

tor (Art. No. 122586) in combination with the special terminal block for the ADQ-250 series

(Art. No. 122584).

Figure 6: Wiring example with MMCX coaxial cable and special terminal block

On the special terminal block for the ADQ-250 series the analog inputs can be either connected

via BNC female connectors or Phoenix type clamps, digital I/Os via a 10-pin Phoenix type clamp

and the trigger inputs as well as +5V and ground via a 5-pin Phoenix type clamp.

18 Functional groups

Functional groups Manual ADQ-250 series Rev. 0.9

3.2.1.1.1 Standard measurement range

The standard input voltage range is ±10.24V. Each channel is decoupled by a high-impedance

input stage with a typical Riof 240 MΩ and a parallel Ci=typ.4pF.

Figure 7: Input stage for ±10.24 V range

3.2.1.1.2 Extended measurement range

As an option an extended input voltage range of ±102.4 V is available. The input impedance can

be adapted to your needs.

Figure 8: Input stage for ±102.4 V range

Functional groups 19

Manual ADQ-250 series Rev. 0.9 Functional groups

3.2.1.1.3 Isolation voltage

Note, that the maximum voltage potential UBbetween the negative analog input AI_x- and

earth may not exceed the isolation voltage of UISO=700VRMS. Else the board can be be dama-

ged irreversible. See also the following example:

Example:

The cells of a high voltage battery (e.g. 600 V) in the area of electric mobility should be measu-

red. By the earth a reference between battery ground and PC ground is established.For example

if you are measuring the "upper battery" cells you must observe the relatively high voltage po-

tential UBwhich may not exceed UISO. Independently of this the measurement voltage UMmay

not exceed the specied range of ±10.24V (standard) resp. ±102.4V (E versions).

Figure 9: Isolation voltage

3.2.1.2 External trigger A/D section

The ADQ-250 series provides two external digital trigger inputs which are isolated from PC

ground and against the analog inputs. You can control the common control logic of all channels

by these two independent trigger sources. Depending on conguration the acquisition can be

started or stopped by a rising, a falling or any of both edges.

The digital trigger inputs (TRIG_A and TRIG_B) are designed for a TTL high-level of +5V. They

use GND_TRIG as common ground reference.

The trigger inputs can be attached by the HDMI connector ST9 at the front panel. A suitable

terminal block is available as an option (see chapter 4.2.4 on page 32).

20 Functional groups

Functional groups Manual ADQ-250 series Rev. 0.9

Figure 10: Wiring of the external trigger inputs

3.2.2 Programming

For programming the analog acquisition there is a differentiation between the so-called "Single

value acquisition" and the "Timer-controlled acquisition". On demand the measurement can be

started or stopped by two external TTL trigger inputs.

3.2.2.1 Single value acquisition

This operation mode is for acquiring single values without xed time reference.

Depending on conguration the conversion can be started by software or by a rising and/or

falling edge at the two external trigger inputs (TRIG_x).

Please note the order of operation as described in the online help.

3.2.2.2 Timer-controlled acquisition

With the timer-controlled acquisition you can sample signals in dened time intervals and

acquire them continuously. You can acquire a pre-dened number of frames or continuously.

The so-called A/D value FIFO is a fast buffer memory which enables a continuous data transfer

of all channels at maximum speed to the PC.

Alldaq ADQ-250 cPCI User manual

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