Contec AIO-160802LI-PE, AI-1616LI-PE, AO-1604LI-PE User Manual

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PC-HELPER

Isolated 16-bit Analog I/O Board for PCI Express

AIO-160802LI-PE

Analog Input Board

AI-1616LI-PE

Analog Output Board

AO-1604LI-PE

User’s Guide

CONTEC CO.,LTD.

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Check Your Package

Thank you for purchasing the CONTEC product. The product consists of the items listed below. Check, with the following list, t hat your packa ge is complete. If yo u discover dam aged or missi ng items,

contact your retailer.

Product Configuration List

- Board (One of the following) …1 [AIO-160802LI-PE, AI-1616LI-PE or AO-1604LI-PE]

- First step guide … 1

- CD-ROM *1 [API-PAC(W32)] …1 *1 The CD-ROM contains the driver software and User’s Guide (this guide)

Board

AIO-160802LI-PE, AI-1616LI-PE , AO-1604LI-PE

First step guide

CD-ROM

[COM Setup Disk]

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Copyright

consent of CONTEC CO., LTD.

CONTEC CO., LTD. makes no commitment to update or keep c urre nt t he i n formation contained in this document. The information in this document is subject to change without notice.

All relevant issues hav e be en consid e red in th e prep ar atio n of th is do cu men t. Sh ould yo u no tic e an omission or any questionable item in this document, please feel free to notify CONTEC CO., LTD.

Regardless of the foregoing statement, CONTEC assumes no responsibility for any errors that may appear in this document or for results obtained by the user as a result of using this product.

Trademarks

MS, Microsoft, Windows, Windows NT and MS-DOS are trademarks of Microsoft Corporation. Other brand and product names are trademarks of their respective holder.

AIO-160802LI-PE, AI-1616LI-PE, AO-1604LI -PE

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Check Your Packag e............................................................................................................................i

Copyright ............................................................................................................................................ii

Trademarks ......................................................................................................................................... ii

Table of Con tents ..............................................................................................................................iii

1. BEFORE USING THE PRODUCT 1

About the Boa rd.................................................................................................................................. 1

Features........................................................................................................................................ 1

Support Soft wa re ......................................................................................................................... 3

Cable & Conne c to r ( Op t ion ) ...................................................................................................... 4

Accessories (Op t i on ) .................................................................................................................. 4

Customer Supp o rt ............................................................................................................................... 5

Web Site....................................................................................................................................... 5

Limited Thre e- Y ea rs Wa rr a n ty .......................................................................................................... 5

How to Obtain Se rv i c e ....................................................................................................................... 5

Liability .............................................................................................................................................. 5

Safety Precau ti o n s .............................................................................................................................. 6

Safety Infor mat i o n....................................................................................................................... 6

Handling Pre ca u tio ns................................................................................................................... 7

Environment ................................................................................................................................ 8

Inspection..................................................................................................................................... 8

Storage ......................................................................................................................................... 8

Disposal ....................................................................................................................................... 8

2. SETUP 9

What is Setup? .................................................................................................................................... 9

Using the Board unde r W ind o ws Usin g th e D riv e r L ib r ar y A P I- PAC ( W 32 ) ............................ 9

Using the Board under Window s Using Softwar e Other than t he Driver Library API- PAC(W32)

...................................................................................................................................................... 9

Using the Board u nde r an OS O th e r th an Wi n do w s ................................................................. 10

Step 1 Installi ng t he Software .......................................................................................................... 11

About the Driv er........................................................................................................................ 11

Starting the In s t all P rog r a m....................................................................................................... 12

Step 2 Setting th e H a rd wa r e............................................................................................................. 14

Parts of the Bo a rd and F a cto r y D ef a u lts ................................................................................... 14

Setting the Bo a rd ID ..................................................................................................................14

Plugging the Board.................................................................................................................... 15

Step 3 Installi ng t h e H a rd wa re ......................................................................................................... 16

Turning on the PC...................................................................................................................... 16

Using the API-AIO(WDM).........................................................................................................16

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Step4 Initial iz in g th e Sof t wa re .........................................................................................................18

Whe n U s ing API-AIO(WDM).................................................................................................... 18

Step 5 Checkin g Operations wi th th e Di a gno si s P rog ram............................................................... 20

What is the Diag n os is Pro g ram? ...............................................................................................20

Check Method............................................................................................................................ 20

Using the Di agnosis Program....................................................................................................21

Setup Trouble sh o o t ing...................................................................................................................... 24

Symptoms and A cti on s ..............................................................................................................24

If your proble m c an n ot b e reso lv ed........................................................................................... 24

3. EXTERNAL CONNECTION 25

How to connect th e co n ne ct o rs ......................................................................................................... 25

Connector shap e.........................................................................................................................25

Connector Pin As si gnment ........................................................................................................26

Analog Input Si g n al Con n ect io n ...................................................................................................... 32

Single-ended In pu t..................................................................................................................... 32

Analog Output Si gn al Co n ne ct ion .................................................................................................... 33

Digital I/O signals, Co un te r sig nal s an d Co nt rol sig na l s Co nn e ct io n ............................................. 34

4. FUNCTIONS 35

Analog Input Fun c tio n...................................................................................................................... 35

1. Setting the Co n ve r sio n Cond i t ion s........................................................................................ 36

2. Starting/ S top p in g Op e rat io n.................................................................................................. 43

3. Monitorin g th e St a tu s and A cq u ir i ng Da t a ...........................................................................44

4.Reset........................................................................................................................................ 47

Analog Outpu t F u nc ti on ................................................................................................................... 48

1. Setting the Co n ve r sio n Cond i t ion s........................................................................................ 49

2. Starting/ S top p in g Op e rat io n.................................................................................................. 57

3. Monitorin g th e St a tu s and A cq u ir i ng Da t a ...........................................................................57

4.Reset........................................................................................................................................ 58

Counter Funct io n .............................................................................................................................. 59

1. Setting the O pe ra ti n g Con d it io n s .......................................................................................... 59

2. Starting/ S top p in g Op e rat io n.................................................................................................. 60

3. Monitorin g th e St a tu s and A cq u ir i ng Da t a ...........................................................................60

4.Reset........................................................................................................................................ 61

Digital Input F un c ti on ......................................................................................................................62

Digital Outpu t Fu nc ti on.................................................................................................................... 63

5. ABOUT SOFTWARE 65

CD-ROM Directo r y S t ru c tu re .......................................................................................................... 65

About Softwa re fo r W i ndo w s........................................................................................................... 66

Accessing the H e lp Fi le.............................................................................................................66

AIO-160802LI-PE, AI-1616LI-PE, AO-1604LI -PE

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Using Sample Programs ............................................................................................................ 67

Usage of Utili ty P ro g ra m........................................................................................................... 69

Uninstalling the D riv e r L ib r ar ies .............................................................................................. 74

About Softwa re fo r L in u x ................................................................................................................ 77

Driver Softwa re In s ta ll P ro ced u re............................................................................................. 77

Accessing the H e lp Fi le............................................................................................................. 78

Using Sample Programs ............................................................................................................ 78

Uninstalling the driver............................................................................................................... 78

6. ABOUT HARDWARE 79

For detailed t e chn i cal in fo r ma tio n ................................................................................................... 79

Hardware spe cification..................................................................................................................... 79

Block Diagra m.................................................................................................................................. 84

Control Signal T imi n g s .................................................................................................................... 87

Control Signal Ti mi n gs f o r An al og In p u t ................................................................................. 87

Control Signal Ti mi n gs f o r An al og Ou tp u t............................................................................... 88

Control Signal Ti mi n gs f o r Co un t er.......................................................................................... 89

About Calibra t ion ............................................................................................................................. 90

Difference from ADAI16-8/2(LPCI)L, ADI16-16(LPCI)L and DAI16 -4(LPCI)L ........................ 91

AIO-160802LI-PE, AI-1616LI-PE, AO-1604LI -PE

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AIO-160802LI-PE, AI-1616LI-PE, AO-1604LI -PE

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1. Before Using the Product

1. Before Using the Product About the Board

This product is a PCI Express bus-compliant interface board used to provide an analog signal I/O, input and output function on a PC. AIO-160802LI-PE features bus isolated 16-bit analog input 8 channels and 16 -bit analog output 2 channels. AI-1616LI-PE features bus isolated 16-bit analog input 16 chann els. AO-1604LI-PE features bus isolated 16-bit analog output 4 channels. Equipped with digital I/O and counter, this product is multifunction and bus isolated type that provides isolation between PC and ext ernal analo g I/O circuit. T his produc t carries buf fer memory for 1K of data, allowing sampling to be performed in a variety of trigger / clock conditions. Windows/Linux driver and full-fledged data logger software “C-LOGGER” is bundle d with this product. Possible to be used as a data recording device for MATLAB and LabVIEW, with dedicated libraries.

Features

< AIO-160802LI-PE >

- Bus isolated high precision analog input 8 channels / out put 2 channels, each 4 c hannels for digita l I/O, counter 1 channel

This product has analog input (10μsec / channel [100KSPS], 16-bit, 8 channels), analog output (10μsec [100KSPS], 16-bit, 2 channels), analog I/O control signal (TTL level 6 channels), digital I/O (each 4 channels for TTL level), counter (32-bit, TTL level 1 channel).

- Functions and connectors are compatible with PCI compatible board ADAI16-8/2(LPCI)L

The functions same with PCI compatible board ADAI16-8/2(LPCI)L are provided. In addition, a s there is compatibility in terms of connector shape and pin assignments, it is easy to migrate from the existing system.

< AI-1616LI-PE >

- Bus isolated high precision analog input 16 channels, each 4 channels for digital I/O, counter 1 channel

This product has analog input (10μsec / channel [100KSPS], 16-bit, 16 channels), analog input control signal (TTL level 3 channels), digital I/O (each 4 channels for TTL level), counter (32-bit, TTL level 1 channel).

- Functions and connectors are compatible with PCI compatible board ADI16-16(LPCI)L

The functions same with PCI compati ble bo ard ADI16-16(LPCI)L are provided. In addition, as there is compatibility in terms of connector shape and pin assignments, it is easy to migrate from the existing system.

< AO-1604LI-PE >

- Bus isolated high precision analog output 4 channels, each 4 channels for digital I/O, counter 1 channel

This product has analog output (10μsec [100KSPS], 16-bit, 4 channels), analog output control signal (TTL level 3 channels), digital I/O (each 4 channels for TTL level), counter (32-bit, TTL level 1 channel).

AIO-160802LI-PE, AI-1616LI-PE, AO-1604LI -PE

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1. Before Using the Product

- Functions and connectors are compatible with PCI compatible board DAI16-4(LPCI)L The functions same with PCI compatible board DAI16-4(LPCI)L are provided. In addition, as there is compatibility in terms of connector shape and pin assignments, it is easy to migrate from the existing system.

< Analog input : AIO-160802LI-PE, AI-1616LI-PE >

- Bus isolation between PC and external analog input circuit by a digital isolator Isolation between PC and external analog input circui t by a d igital i solato r im prov es noise p erform a nce.

- The start/end of sampling can be controlled by software, comparison of conversion data, an external trigger, etc.

You can select from software , compari son of conversion da ta or a n external trigger to contr ol the star t of sampling. You can select from completion of sampling for a specified number of sessions, comparison of conversion data, an external trigger or software to control the end of sampling. The sampling cycle can be selected from the internal clock or an external clock.

- Equipped with buffer memory (1K data) that can be used in the FIFO or RING format

The analog input block conta in s bu ffer m em ory (1K dat a) t hat can be u se d i n the FI FO or RIN G format. This allows for background analog I/O that does not depend on the operation status of the software or PC.

< Analog output : AIO-160802LI-PE, AO-1604LI-PE >

- Bus isolation between PC and external analog output circuit by a digital isolator

Isolation between PC and external analog output circuit by a digital isolator improves noise performance.

- The start/end of sampling can be controlled by software, an external trigger, etc.

You can select from software, an external trigger to control the start of sampling. You can select from completion of sampling fo r a sp e cifi ed nu mbe r of ses sion s , an ex te rnal tr igg er o r sof tw ar e to con tro l forcibly the end of sampling. The sampling cycle can be selected from the internal clock or an external clock.

- Safety design to adjust output vol tage to 0 V whe n power supp ly is tu rned on

To prevent the unstable voltage and the connected device of D/A converter from fault and malfunctions when the power supply is turned on, the circuit is designed to adjust output voltage of the analog output to 0V.

- Equipped with buffer memory (1K data) that can be used in the FIFO or RING format

The analog output block contain s buffer mem ory (1K data) that can be used in the FI FO or RING form at. This allows for background analog output that does not depend on the operation status of the software or PC.

< Common >

- Digital filter function included to prevent misdetection due to chattering on external signals

A digital filter is included to prevent misdetection due to chattering on the control signal (exter nal trigger input signal, sampling clock input signal, etc.), digital input signal and counter input signal. (Except from external clock input signal and counter gate signal)

- Software-based calibration function

Calibration can be all performed by software. Apart from the adjustment information prepared before shipment, additional adjustment information can be stored according to the use environment.

AIO-160802LI-PE, AI-1616LI-PE, AO-1604LI-PE

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1. Before Using the Product

- Data logger software, Windows/Linux compatible driver libraries are attached. Using the bundled data logger software “C-LOGGER” allows you to display recorded signal data in graphs, save files without any special program. In addition, the driver library API-PAC(W32) which makes it possible to create applications of Windows/Linux is provided.

- MATLAB and LabVIEW is supported by a plug-in of dedicated library VI-DAQ. Using the dedicated library MATLAB and VI-DAQ makes it possible to make a LabVIEW application.

Support Software

You should use CONTEC support software accor d ing to your purpose and development environment. Windows version of analog I/O driver

API-AIO(WDM)

[Stored on the bundled CD-ROM driver library API-PAC(W32)]

The API-AIO(WDM) is the Windows version driver library software that provides products in the form of Win32 API functions (DLL). Various sample programs such as Visual Basic and Visual C++, etc and diagnosti c p rogram useful for checking operation is provided.

< Operating environment > OS Windows Vista, XP, Server 2003, 2000 Adaptation language Visual Basic, Visual C++, Visual C#, Delphi, C++ Builder For more details on the supported OS, applicable language an d how to download the updated version, please visit the CONTEC’s Web site (http://www.contec.com/apipac/).

Linux version of analog I/O driver

API-AIO(LNX)

[Stored on the bundled CD-ROM driver library API-PAC(W32)]

The API-AIO(LNX) is the Linux version driver software which provides device drivers (modules) by shared library and kernel version. Various sample programs of gcc are provided.

< Operating environment > OS RedHatLinux, TurboLinux (For details on supported distributions, refer to Help availabl e after installation .) Adaptation language gcc For more details on the supported OS, applicable language an d how to download the updated version, please visit the CONTEC’s Web site (http://www.contec.com/apipac/).

Data Logger Software

C-LOGGER

[Stored on the bundled CD-ROM driver library API-PAC(W32)]

C-LOGGER is a data logger software program compatible with our analog I/O products. This program enables the graph display of recorded signal data, zoom observation, file saving, and dynamic transfer to the spreadsheet software “Excel”. No troublesome programming is required.

CONTEC provides download services (at http://www.contec.com/clogger) to supply the updated driv ers . For details, refer to the C-LOGGER Users Guide or our website.

< Operating Environment > OS Windows Vista, XP, Server 2003, 2000

AIO-160802LI-PE, AI-1616LI-PE, AO-1604LI -PE

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1. Before Using the Product

Data Acquisition library for MATLAB (Available for downloading (free of charge) from the CONTEC web site.)

This is the library software which allows you to use our analog I/O device product s on MATLAB by the MathWorks. Each function is offered in accordance with the interface which is integrated in MATLAB’s Data Acquisition Toolbox. See http://www.contec.com/mldaq/ for details and download of ML-DAQ.

Data acquisition VI library for LabVIEW (Available for downloading (free of charge) from the CONTEC web site.)

This is a VI library to use in National Instruments LabVIEW. VI-DAQ is created with a function form similar to that of LabVIEW's Data Acquisition VI, allowing you to use various devices without complicated settings. See http://www.contec.com/vidaq/ for details and download of VI-DAQ.

ML-DAQ

VI-DAQ

Cable & Connector (Option)

Shield Cable with 50-Pin Mi ni-R ibb on Conn ecto rs at either Ends : PCB50PS-0.5P (0.5m) : PCB50PS-1.5P (1.5m) Shield Cable with 50-Pin Mini-Ribbon Connector at one End : PCA50PS-0.5P (0.5m) : PCA50PS-1.5P (1.5m)

Accessories (Option)

Screw Terminal Unit (M3 x 50P) : EPD-50A *1*2 Buffer Amplifier Box for Analog Input Boards (8ch type) : ATBA-8L *1*3*4*5 Buffer Amplifier Box for Analog Input Boards (16ch type) : ATBA-16L *1*3*4 BNC Terminal Unit (for analog input 8ch) : ATP-8L *1*6

*1 PCB50PS-0.5P or PCB50PS-1.5P optional cable is required separately. *2 “Spring-up” type terminal is used to prevent terminal screws from falling off. *3 Only AIO-160802LI-PE, AI-1616LI-PE can be used. *4 An external power supply is necessary (optional AC adaptor POA200-20 prepared.) *5 As for the AI-1616LI-PE, capable of using the analog input of up to 8ch. *6 Capable of using the analog input of up to 8ch, and analog output of up to 2ch.

* Check the CONTEC’s Web site for more information on these options.

CAUTION

It may affect the withstanding voltage depending on the cable and terminal unit to be used

AIO-160802LI-PE, AI-1616LI-PE, AO-1604LI-PE

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1. Before Using the Product

Customer Support

CONTEC provides the following s upport services fo r you to use CONTEC products more efficiently and comfortably.

Web Site

Japanese http://www.contec.co.jp/ English http://www.contec.com/ Chinese http://www.contec.com.cn/

Latest product information CONTEC provides up-to-date information on products. CONTEC also provides product manuals and various technical documents in the PDF.

Free download You can download updated driver software a nd diff erenti al files as we ll as sample pr ograms available i n

several languages.

Note! For product information Contact your retailer if you have any technical question about a CONTEC product or need its price,

delivery time, or estimate information.

Limited Three-Years Warranty

CONTEC products are warranted by CONTEC CO., LTD. to be free from defects in material and workmanship for up to three years from the date of purchase by the original purchaser. Repair will be free of char ge only w hen thi s device is ret urned fr eight pr epaid with a c opy of the origi nal invoice and a Return Merchandise Authorization to the distributor or the CONTEC group office, from which it was purchased. This warranty is not applicable for scratches or normal wear, but only for the electronic circuitry and original boards. The warranty is not applicabl e if the device has been tamper ed with or damaged t hrough abuse, mistreatment, neglect, or unreasonable use, or if the original invoice is not included, in which case repairs will be considered beyond the warranty policy.

How to Obtain Service

For replacement or repair, return the device freight prepaid, with a copy of the original invoice. Please obtain a Return Merchandise Authorization number (RMA) from the CONTEC group office where you purchased before returning any product.

* No product will be accepted by CONTEC group without the RMA number.

Liability

The obligation of the warrantor is solely to repair or replace the product. In no event will the warrantor be liable for any incidental or consequential damages due to s uch defec t or consequence s that arise from inexperienced usage, misuse, or malfunction of this device.

AIO-160802LI-PE, AI-1616LI-PE, AO-1604LI -PE

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1. Before Using the Product

Safety Precautions

Understand the following definitions and precautions to use the product safely.

Safety Information

This document provides safety information u sing the foll owing sym bols to prevent a ccidents res ulting in injury or death and the destruc tion of equi pment and res ources. Under stand the mean ings of these la bels to operate the equipment safely.

DANGER

WAR NI NG

CAUTION

DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury or in property damage.

AIO-160802LI-PE, AI-1616LI-PE, AO-1604LI-PE

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1. Before Using the Product

Handling Precautions

DANGER

Do not use the product where it is expo sed to fl amm able or c orrosive gas. D oing s o may result in an

explosion, fire, electric shock, or failure.

CAUTION

- There are switches and jumpers on the board that need to be set in advance. Be sure to check these before installing the board.

- Only set th e sw it che s and jumpers on the board to th e sp ecif i ed se tt ing s. Otherwise, the board may malfunction, overheat, or cause a failure.

- Do not strike or bend the board. Doing so could damage the board. Otherwise, the board may malfunction, overheat, cause a failure or breakage.

- Do not touch the board's metal plated terminals (edge connector) with your hands.

Otherwise, the board may malfunction, overheat, or cause a failure. If the terminals are touched by someone's hands, clean the terminals with industrial alcohol.

- Do not plug or unplug the cables which are connecte d to t he boar d while the P C or e xpan sion unit i s still turned on. Otherwise, the board may malfunction, overheat, or cause a failure. Be sure that the personal computer power is turned off.

- Do not install or remove the board to or from the slot while the computer's power is turned on. Otherwise, the board may malfunction, overheat, or cause a failure. Be sure that the personal computer or the I/O expansion unit power is turned off.

- Make sure that your PC or expansion unit can supply ample power to all the boards installed. Insufficiently energized boards could malfunction, overheat, or cause a failure.

- The specifications of this product are subject to change without notice for enhancement and quality improvement. Even when using the product continuously, be sure to read the manual and understand the contents.

- Do not modify the product. CONTEC will b ear no responsibility for any problems, etc., resulting from modifying this product.

- Regardless of the foregoing statements, CONTEC is not liable for any damages whatsoever (including damages for loss of business profits) arising out of the use or inability to use this CONTEC product or the information contained herein.

AIO-160802LI-PE, AI-1616LI-PE, AO-1604LI -PE

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1. Before Using the Product

Environment

Use this product in the following environment. If used in an unauthorized environment, the board may overheat, malfunction, or cause a failure.

Operating temperature

0 - 50°C

Operating humidity

10 - 90%RH (No condensation)

Corrosive gases

None

Floating dust particles

Not to be excessive

Inspection

Inspect the product periodically as follows to use it safely.

- Check that the bus connector of the board and its cable have been plugged correctly.

- Check that the board has no dust or foreign matter adhering.

- The gold-plated leads of the bus connector have no stain or corrosion.

Storage

When storing this product, keep it in it s original packing fo rm. (1) Put the board in the storage bag. (2) Wrap it in the packing material, then put it in the box. (3) Store the package at room temperature at a place free from direct sunlight, moisture, shock,

vibration, magnetism, and static electricity.

Disposal

When disposing of the product, follow the disposal procedures stipulated under the relevant laws and municipal ordinances.

AIO-160802LI-PE, AI-1616LI-PE, AO-1604LI-PE

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2. Setup

This chapter explains how to set up the board.

What is Setup?

Setup means a series of steps to take before the product can be used. Different steps are required for software and hardware. The setup procedure varies with the OS and applications used.

Using the Board under Windows

Using the Driver Library API-PAC(W32)

This section describes the setup procedure to be performed before you can start developing application programs for the board using the bundled CD-ROM “Driver Library API-PAC(W32)”.

Taking the following steps sets up the software and hardware. You can use the diagnosis program later to check whether the software and hardware function normally.

Step 1 Installing the Software Step 2 Setting the Hardware Step 3 Installing the Hardware Step 4 Initializing the Software Step 5 Checking Operations with the Diagnosis Program

If Setup fails to be performed normally, see the “Setup Troubleshooting” section at the end of this chapter.

Using the Board under Windows

Using Software Other than the Driver Library API-PAC(W32)

For setting up software other than API-PAC(W32), refer to the manual for that software. See also the following parts of this manual as required.

This chapter Step 2 Setting the Hardware This chapter Step 3 Installing the Hardware Chapter 3 External Connection Chapter 6 About Hardware

AIO-160802LI-PE, AI-1616LI-PE, AO-1604LI -PE

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2. Setup

Using the Board under an OS Other than Windows

For using the board under Linux, see the following parts of this manual.

This chapter Step 2 Setting the Hardware Chapter 3 External Connection Chapter 5 About Software Chapter 6 About Hardware

For using the board under an OS other than Windows and Linux, see the following parts of this manual.

This chapter Step 2 Setting the Hardware Chapter 3 External Connection Chapter 6 About Hardware

AIO-160802LI-PE, AI-1616LI-PE, AO-1604LI -PE

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2. Setup

Step 1 Installing the Software

This section describes how to inst all th e API fun cti on li b rari es .

Before installing the hardware on your PC, install the Driver libraries from the bundled API-PAC(W32) CD-ROM.

The following description assumes the operating system as Windows XP. Although some user interfaces are different depending on the OS used, the basic procedure is the same.

About the Driver

There are the two drivers "API-AIO(WDM)" and "API-AIO(98/PC)" among the analog input/output drivers.

API-AIO(WDM) is a new driver to perform analog input and output under Windows. It was developed aiming at "more easily use and more convenient" "more high performance"

corresponding to the product version of API-AIO(98/PC) so far. Please use the API-AIO(WDM) with this board. API-AIO(98/PC) is not supported.

AIO-160802LI-PE, AI-1616LI-PE, AO-1604LI -PE

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2. Setup

Starting the Install Program

(1)

Load the CD-ROM [API-PAC(W32)] on your PC.

(2)

The API-PAC(W32) Installer window appears automatically.

If the panel does not appear, run (CD-ROM drive letter):\AUTORUN.exe.

(3)

Click on the [Install Development or Execution Environment] button.

CAUTION

Before installing the software in Windows Vista, XP, Server 2003, 2000, or NT, log in as a user with

administrator privileges.

AIO-160802LI-PE, AI-1616LI-PE, AO-1604LI -PE

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2. Setup

Selecting API-AIO(WDM) (1)

The following dialog box appears to select “Driver to install” and “Install option”, “Usage of driver library”.

(2)

Select the "Advanced Analog I/O driver".

(3)

Click on the [Install] button.

* Clicking the [Detail] button displays detailed information about API-AIO(WDM) and

API-AIO(98/PC).

Executing the Installation

(1) Complete the installation by following the instructions on the screen. (2) The Readme file appears when the installation is complete.

You have now finished installing the software.

AIO-160802LI-PE, AI-1616LI-PE, AO-1604LI -PE

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2. Setup

Step 2 Setting the Hardware

This section describes how to set the board and plug it on your PC. The board has some switches and jumper to be preset. Check the on-board switches and jumpers before plugging the board into an expansion slot. The board can be set up even with the factory defaults untouched. You can change board settings later.

Parts of the Board and Factory Defaults

Figure 2.1. shows the names of major parts on the board. Note that the switch setting shown below is the factory default.

- Interface connector (CN1)

SW1

BOARD ID

- Board ID setting switch (SW1)

SW1

BOARD ID

Figure 2.1. Part Names

Setting the Board ID

If you install two or more boards on one personal computer, assign a different ID value to each of the boards to distinguish them.

The board IDs can be set from 0 - Fh to identify up to sixteen boards. If only one board is used, the original factory setting (Board ID = 0) should be used.

Setting Procedure To set the board ID, use the rotary switch on the boar d. Tur n the SW 1 knob to set the board ID a s show n

below.

SW1

BOARD ID

Factory setting:

(Board ID = 0)

Figure 2.2. Board ID Settings (SW1)

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2. Setup

Plugging the Board

(1) Before plugging the board, shut down the system, unplug the power code of you r PC. (2) Remove the cover from the PC so that the board can be mounted. (3) Plug the board into an expansion slot. (4) Attach the board bracket to the PC with a screw. (5) Put the cover back into place.

CAUTION

- Do not touch the board's metal plated terminals (edge connector) with your hands. Otherwise, the board may malfunction, overheat, or cause a failure. If the terminals are touched by someone's hands, clean the terminals with industrial alcohol.

- Do not install or remove the board to or from the slot while the computer's power is turned on. Otherwise, the board may malfunction, overheat, or cause a failure. Doing so could cause trouble. Be sure that the personal computer or the I/O expansion unit power is turned off.

- Make sure that your PC or expansion unit can supply ample power to all the boards installed. Insufficiently energized boards could malfunction, overheat, or cause a failure.

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2. Setup

Step 3 Installing the Hardware

Windows needs to detect the I/O address and interrupt used by the board. This is called hardware installation.

When using more than one board, install the boards one at a time and do not install the next board until setup is complete for the previous board.

Turning on the PC

Turn on the power to your PC.

CAUTION

- The board cannot be properly installed unless the resources (I/O addresses and interrupt level) for the board can be allocated. Before attempting to install the board, first determ ine what PC resource s are free to use.

- The resources used by each board do n ot depend on the loca tion of the PCI bus sl ot or the board itsel f. If you remove two or m ore boar ds t hat ha ve alr eady been i nstall ed an d the n rem ount one of t hem on the computer, it is unknown that which one of the sets of resources previously assigned to the two boards is assigned to the remounted board. In this case, you must check the resource settings.

Using the API-AIO(WDM)

(1) When the " Found New Hardware Wizard" opens, select "Install the software automatically

[Recommended]" and then click the "Next" button.

* The wizard may not appear for some OS versions and instead the installati on will start aut omatically.

In this case, proceed to the software initial setup step.

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2. Setup

< If using Windows 98 or Windows Me > If using Windows 98 or Windows Me, specify the folder that contains the setup information (INF) file

from the CD-ROM.

Source folder The setup information file (INF) is contained in the following folder on the bundled CD-ROM.

\INF\WDM\AIO

You have now finished installing the software.

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2. Setup

Step4 Initializing the Software

The driver library requires the initial setting to recognize the execution environment. It is called the initialization of the Driver library.

When U sin g API-AIO(WDM)

API-AIO(WDM) is initialized automatically during hardware installation. Therefore, if you want to use it with its initial settings, you can skip the setting procedure described in Step 4. To change the device name, follow the setting procedure shown below.

Setting the device name (1) Run Device Manager. From [My Computer] - [Control Panel], select [System] and then select the

[Device Manager] tab. (You can also open Device Manager by right clicking on My Computer and selecting Properties.)

* The name of the board you have just added is displayed.

- AIO-160802LI-PE

- AI-1616LI-PE

- AO-1604LI-PE

(2) The installed hardware appears under the CONTEC Devices node. Open the CONTEC Devices node and select the device you want to setup (the device name should appear highlighted). Click [Properties].

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2. Setup

(3) The property page for the device opens.

Enter the device name in the common settings tab page and then click [OK]. The device name you set here is used later when programming.

* The name of the board you have just added is displayed.

- AIO-160802LI-PE

- AI-1616LI-PE

- AO-1604LI-PE

* The initial device name that appears is a default value. You can use this default name if you wish. * Make sure that you do not use the same name for more than one device.

You have now finished installing the initial setting of Software.

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2. Setup

Step 5 Checking Operations with the Diagnosis Program

Use the diagnosis program to check that the board and driver software work normally, thereby you can confirm that they have been set up correctly.

What is the Diagnosis Program?

The diagnosis program diagnoses the states of the board and driver software. It can also be used as a si mple ch ec k er when an ex t ern al dev i ce i s actu all y co nn ect ed . Using the “Diagnosis Report” feature reports the driver settings, the presence or absence of the board, I/O status, and interrupt status.

Check Method

To check the analog I/O data, connect to an external signal source. The figure below shows an example of checking by connecting to an external signal. The analog input example illustrated below is an example of using analog input channel 0 on the AIO-160802LI-PE or AI-1616LI-PE. The analog output example illustrated below is an example of using analog output channel 0 on the AIO-160802LI-PE or AO-1604 LI-PE.

Connection diagram

< Analog Input >

- Single-Ended Input

Interface connector

CH0

(CN1)21pin

Signal source

(e.g. Battery etc.)

Analog Ground

(CN1)17pin

CAUTION

Input data remains indeterminate when no input pin is connected. The input pin for the channel not

connected to the signal source must be connected to the analog ground. For details, see “Chapter 3 External Connection”.

< Analog Output >

Interface connector

(CN1)25pin

Analog Ground

(CN1)24pin

CH0

e.g.Tester

Figure 2.3. Connection diagram

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2. Setup

Using the Diagnosis Program

Starting the Diagnosis Program Click the [Diagnosis] button on the device property page to start the di agnosis progra m.

* The name of the board

you have just added is displayed.

- AIO-160802LI-PE

- AI-1616LI-PE

- AO-1604LI-PE

AIO-160802LI-PE, AI-1616LI-PE, AO-1604LI -PE

* The name of the board

you have just added is displayed.

- AIO-160802LI-PE

- AI-1616LI-PE

- AO-1604LI-PE

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2. Setup

Analog input Select the input channel, input type, and input range from the lists.

Input data is plotted on a graph. * This function is available only to the AIO-160802LI-PE and AI-1616LI-PE.

Analog output You can select the desired output channel and output range from the lists.

You can set the output data to DC (constant voltage), sine wave, or square wave. * This function is available only to the AIO-160802LI-PE and AO-1604LI-PE.

Digital I/O The upper row of circular lamps indicates t he digita l input state s. Re d indicates the bit is ON and br own

indicates OFF. Clicking the lower row of sw itch es tu rns th e d igi tal ou tpu t b its ON or OF F.

Counter input Selecting a counter channel displays the count value and state of that counter channel.

Clicking the zero clear button resets the count to zero.

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2. Setup

Diagnosis Report (1) The diagnosis report saves detailed data, including the device settings and settings for each channel,

to a text file and displays the file for you to view.

Clicking [Diagnosis Report] prompts you to specify where to save the repo rt text file.

* The name of the board

you have just added is displayed.

- AIO-160802LI-PE

- AI-1616LI-PE

- AO-1604LI-PE

(2) The diagnosis report contains the following data.

- Version of OS

- Device Information

- File Information

- Initialization, interrupts, current input or output state for each channel

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2. Setup

Setup Troubleshooting

Symptoms and Actions

Data input or output does not operate correctly

- Run the diagnosis program to check that the device is registered and whet her any initialization errors have occurred.

- Is there a problem with the device settings, wiri ng, or similar? Chec k the I/O range setting. Also, the input data will be undefined if the wiring terminals are not connected. Ensure that the channels you are using are correctly connected. Connect unused channels to analog ground.

- For voltage input, check by connecting a battery or similar if you do not have any other suitable signal source. Also che ck th a t con n ect ing to an alog gro und r ead s co r rec tly a s 0V.

The board works with the Diagnosis Program but not with an application. The Diagnosis Program is coded with API-TOOL functions. As long as the board operates with the

Diagnosis Program, it is to operate with other applications as well. In such cases, review your program while paying attention to the following points:

- Check the return values of the API functions.

- Refer to the source code for the sample programs.

The OS won’t normally get started or detect the device. Refer to the "Troubleshooting" section of API-AIO(WDM) HELP.

If your problem cannot be resolved

Contact your retailer.

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3. External Connection

This chapter describes the interface connectors on the board and the external I/O circuits. Check the information available here when connecting an external device.

How to connect the connectors

Connector shape

To connect an external device to this board, plug the cable from the device into the interface connector (CN1) shown below.

Interface connector (CN1)

- Connector used 50-pin mini-ribbon connector

10250-52A2JL[mfd .by 3M]

- connector

Compatible 10150-6000EL[mfd. by 3M]

CN1

* Please refer to chapter 1 for more information on the supported cable and accessories.

Figure 3.1. Interface Connector Shape

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3. External Connection

Connector Pin Assignment

Pin Assignments of AIO-160802LI-PE Interface Connector (CN1)

Non Connect N.C. 50 25 AO 00 Analog Output 00

Analog Ground ( fo r AO ) AGND 49 24 AG ND Analog Ground ( fo r AO )

Non Connect N.C. 48 23 AO 01 Analog Output 01

Analog Ground ( fo r AO ) AGND 47 22 AG ND Analog Ground ( fo r AO )

Analog Input 04 AI 04 46 21 AI 00 Analog Input 00

Non Connect N.C. 45 20 N. C. Non Connect

Analog Input 05 AI 05 44 19 AI 01 Analog Input 01

Non Connect N.C. 43 18 N. C. Non Connect

Analog Ground ( fo r AI ) AGND 42 17 AG ND Analog Ground ( fo r AI )

Analog Ground ( fo r AI ) AGND 41 16 AG ND Analog Ground ( fo r AI )

Analog Input 06 AI 06 40 15 AI 02 Analog Input 02

Non Connect N.C. 39 14 N. C. Non Connect

Analog Input 07 AI 07 38 13 AI 03 Analog Input 03

Non Connect N.C. 37 12 N. C. Non Connect

AO External Start Trigger Input AO START 3 6 11 AI START AI External Start Trigger Input

AO External Stop Tr igger Input AO STOP 35 10 AI STOP AI Ex ternal Stop Trigger Inp ut

AO External Sampl ing Clock Input AO E XCLK 34 9 AI EXCLK AI External Sampling Clock Input

Digital Ground DGND 33 8 DGND Digital Ground

Digital Output 00 DO 00 32 7 DI 00 Digital Input 00

Digital Output 01 DO 01 31 6 DI 01 Digital Input 01

Digital Output 02 DO 02 30 5 DI 02 Digital Input 02

Digital Output 03 DO 03 29 4 DI 03 Digital Input 03

Digital Ground DGND 28 3 DGND Digital Ground

Counter UP Clock Input CNT UPCLK 2 7 2 CNT GATE Counter Gate Control Input

Reserved Reserved 26

Analog Input00 - Analog Input07 Analog input signal. The numbers correspond to channel numbers.

Analog Output00 - Analog Output01 Analog output signal. The numbers correspond to channel numbers.

Analog Ground Common analog ground for analog I/O signals.

AI External Start Trigger Input External trigger input for starting analog input sampling.

AI External Stop Trigger Input External trigger input for stopping analog input sampling.

AI External Sampling Clock Input External sampling clock input for analog input.

AO External Start Trigger Input External trigger input for starting analog output sampling.

AO External Stop Trigger Input External trigger input for stopping analog output sampling.

AO External Sampling Clock Input External sampling clock input for analog output.

Digital Input00 - Digital Input03 Digital input signal.

Digital Output00 - Digital Output03 Digital output signal.

Counter Gate Control Input Gate control input signal for counter.

Counter Up Clock Input Count-up clock input signal for counter.

Counter Output Counter output signal.

Digital Ground Common digital ground for digital I/O signals, external trigger inputs,

Reserved Reserved pin.

N.C. No connection to this pin.

Figure 3.2. Pin Assignments of Interface Connector (CN1) <AIO-160802LI-PE>

50 25

26 1

1 CNT OUT Counter Output

external sampling clock inputs, and counter I/O signals.

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3. External Connection

CAUTION

- Do not connect any of the outputs and power outpu ts to th e analog or digital ground . Neither connect outputs to each other. Doing either can result in a fault.

- If analog and digital ground are shorted together, noise on the digital signals may affect the analog signals. Accordingly, analog and digital ground should be separated.

- Leave "Reserved" pins unconnected. Connecting these pins may cause a fault in the board.

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3. External Connection

in Assignments of AI-1616LI-PE Interface Connector (CN1)

Non Connect N.C.

Reserved Reserved

Non Connect N.C.

Reserved Reserved

Analog Input 04 AI 04

Analog Input 12 AI 12

Analog Input 05 AI 05

Analog Input 13 AI 13

Analog Ground ( fo r AI ) AGND

Analog Input 06 AI 06

Analog Input 14 AI 14

Analog Input 07 AI 07

Analog Input 15 AI 15

Non Connect N.C.

Digital Ground DGND

Digital Output 00 DO 00

Digital Output 01 DO 01

Digital Output 02 DO 02

Digital Output 03 DO 03

Digital Ground DGND

Counter UP Clock Input CNT UPCLK

Reserved Reserved

50 25

49 24

48 23

47 22

46 21

50 25

45 20

44 19

43 18

42 17

41 16

40 15

39 14

38 13

37 12

36 11

35 10

34 9

33 8

32 7

26 1

31 6

30 5

29 4

28 3

27 2

N.C. Non Connect

Reserved Reserved

N.C. Non Connect

Reserved Reserved

AI 00 Analog Input 00

AI 08 Analog Input 08

AI 01 Analog Input 01

AI 09 Analog Input 09

AGND Analog Ground ( for AI )

AI 02 Analog Input 02

AI 10 Analog Input10

AI 03 Analog Input 03

AI 11 Analog Input 11

AI START AI External Start T rigger Input

AI STOP AI External Stop Trigger Input

AI EXCLK AI External Sampling C lock Input

DGND Digital Ground

DI 00 Digital Input 00

DI 01 Digital Input 01

DI 02 Digital Input 02

DI 03 Digital Input 03

DGND Digital Ground

CNT GATE Counter Gate Contro l Input

CNT OUT Counter Out put

Analog Input00 - Analog Input15 Analog input signal. The numbers correspond to channel numbers.

Analog Ground Common analog ground for analog I/O signals.

AI External Start Trigger Input External trigger input for starting analog input sampling.

AI External Stop Trigger Input External trigger input for stopping analog input sampling.

AI External Sampling Clock Input External sampling clock input for analog input.

Digital Input00 - Digital Input03 Digital input signal.

Digital Output00 - Digital Output03 Digital output signal.

Counter Gate Control Input Gate control input signal for counter.

Counter Up Clock Input Count-up clock input signal for counter.

Counter Output Counter output signal.

Digital Ground Common digital ground for digital I/O signals, external trigger inputs,

external sampling clock inputs, and counter I/O signals.

Reserved Reserved pin,

N.C. No connection to this pin.

Figure 3.3. Pin Assignments of Interface Connector (CN1) <AI-1616LI-PE>

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3. External Connection

CAUTION

- Do not connect any of the outputs and power outpu ts to th e analog or digital ground . Neither connect outputs to each other. Doing either can result in a fault.

- If analog and digital ground are shorted together, noise on the digital signals may affect the analog signals. Accordingly, analog and digital ground should be separated.

- Leave "Reserved" pins unconnected. Connecting these pins may cause a fault in the board.

AIO-160802LI-PE, AI-1616LI-PE, AO-1604LI -PE

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3. External Connection

Pin Assignments of AO-1604LI-PE Interface Connector (CN1)

Analog Output 02 AO 02

Analog Ground ( fo r AO ) AG ND

Analog Output 03 AO 03

Analog Ground ( fo r AO ) AG ND

Non Connect N.C.

Reserved Reserved

Non Connect N.C.

AO External Star t Trigger Input AO START

AO External Stop Tr igger Input AO STOP

AO External Sampl ing Clock Input AO EXCLK

Digital Ground DGND

Digital Output 00 DO 00

Digital Output 01 DO 01

Digital Output 02 DO 02

Digital Output 03 DO 03

Digital Ground DGND

Counter UP Clock Input CNT UPCLK

Reserved Reserved

50 25

49 24

48 23

47 22

46 21

50 25

45 20

44 19

43 18

42 17

41 16

40 15

39 14

38 13

37 12

36 11

35 10

34 9

33 8

32 7

26 1

31 6

30 5

29 4

28 3

27 2

AO 00 Analog Output 00

AGND Analog Ground ( for AO )

AO 01 Analog Output 01

AGND Analog Ground ( for AO )

N.C. Non Connect

Reserved Reserved

N.C. Non Connect

DGND Digital Ground

DI 00 Digital Input 00

DI 01 Digital Input 01

DI 02 Digital Input 02

DI 03 Digital Input 03

DGND Digital Ground

CNT GATE Counter Gate Control Input

CNT OUT Counter Output

Analog Output00 - Analog Output03 Analog output signal. The numbers correspond to channel numbers.

Analog Ground Common analog ground for analog I/O signals.

AO External Start Trigger Input External trigger input for starting analog output sampling.

AO External Stop Trigger Input External trigger input for stopping analog output sampling.

AO External Sampling Clock Input External sampling clock input for analog output.

Digital Input00 - Digital Input03 Digital input signal.

Digital Output00 - Digital Output03 Digital output signal.

Counter Gate Control Input Gate control input signal for counter.

Counter Up Clock Input Count-up clock input signal for counter.

Counter Output Counter output signal.

Digital Ground Common digital ground for digital I/O signals, external trigger inputs,

external sampling clock inputs, and counter I/O signals.

Reserved Reserved pin.

N.C. No connection to this pin.

Figure 3.4. Pin Assignments of Interface Connector (CN1) <AO-1604LI-PE>

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3. External Connection

CAUTION

- Do not connect any of the outputs and power outpu ts to th e analog or digital ground . Neither connect outputs to each other. Doing either can result in a fault.

- If analog and digital ground are shorted together, noise on the digital signals may affect the analog signals. Accordingly, analog and digital ground should be separated.

- Leave "Reserved" pins unconnected. Connecting these pins may cause a fault in the board.

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3. External Connection

Analog Input Signal Connection

Analog signal input types are divided into single-ended input and differential input. This board uses single-ended input fixe d. The followi ng exam ples sh ow how t o connect a nalog i nput sig nals usi ng a flat cable and a shielded cable.

Single-ended Input

The following figure shows an example of flat cable connection. Connect separate signal and ground wires for each analog input channel on CN1.

BOARD

Analog In put 0..15*1

Analog Ground

CN1 Cable Signal Source

Figure 3.5. Single-ended Input Connection (Flat Cable)

The following figure shows an example of shield cable connection. Use shielded cable if the distance between the signal source and board is long or if you want to provide better protection from noise. For each analog input chan nel o n CN1 , c onne ct th e co re wi re to th e sign al lin e and co nn ect th e sh ie ldin g to ground.

BOARD

Analog Input 0..15*1

Analog Ground

CN1

Shield cable

Signal Source

Figure 3.6. Single-ended Input Connection (Shield Cable)

*1 The number of channels depends on each board.

The AIO-160802LI-PE has eight channels; the AI-1616LI-PE has 16 channels; the AO-1604LI-PE has no channel.

CAUTION

- If the signal source contains over 1MHz signals, the signal may effect the cross-talk noise between channels.

- If the board and the signal source receive noise or the distance between the board and the signal source is too long, data may not be input properly.

- An input analog signal should not exceed the maximum input voltage (relate to the board analog ground). If it exceeds the maximum voltage, the board may be damaged.

- Connect all the unused analog inpu t chan nels to analog groun d.

- The signal connected to an input pin may fluctuate after switching of t he multiplexer. I f this occur s, shorten the cable between the signal so urce and t he analog inp ut pin or ins ert a hig h-speed am plifier as a buffer between the two to reduce the fluctuation.

AIO-160802LI-PE, AI-1616LI-PE, AO-1604LI -PE

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3. External Connection

- An input pin may fail to obtain input data normally when the signal source connected t o the pin has high impedance. If this is t he case, cha nge t he s ig na l so ur ce to one wit h lo wer o ut put impedance or insert a high-speed amplif ier buffer between the si gnal s ource and the anal og input pin to reduce the effect.

Analog Output Signal Connection

This section shows how to connect the analog output signal by using a flat cable or a shielded cable. The following figure shows an example of flat cable connection. Connect the signal source and ground to the CN1 analog output.

BOARD

Analog Output 0..3*2

Analog Ground

CN1 Cable Targe t

Figure 3.7. Analog Output Connection (Flat Cable)

BOARD

Analog Output 0..3*2

Analog Ground

CN1

Shield cable

Tar get

Figure 3.8. Analog Output Connection (Shield Cable)

*2 The number of channels depends on each board.

The AIO-160802LI-PE has two channels; the AI-1616LI-PE has n o ch annel; the AO-1604LI-PE has four channels.

CAUTION

- When the powe r supp ly is tu rne d on, th e output voltage of all channels becomes 0V.

- If the board or the connected wire receives noise, or the distance between the board and the target is long, data may not be outputted properly.

- Do not short the analog output signal to anal og gro u nd, di gi tal gr ou nd, and /or p ower li ne. D oi ng s o may damage the board.

- Do not connect an analog outpu t signal to any ot her analog output, either on the board or on an external device, as this may cause a fault on the board.

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3. External Connection

Digital I/O signals, Counter signals and Control signals Connection

The following sections show examples of how to connect digital I/O signals, counter I/O signals, and other control I/O signals (external trigger input signals, sampling clock input signals, etc.).

All the digital I/O signals and control signals are TTL level signals.

10kΩ

BOARD

Digital Input

Digital Ground

Figure 3.9. Digital Input Connection

CN1 Cable Target

BOARD

Digital Output I

=8mA

Digital Ground

CN1 Cable Tar get

Figure 3.10. Digital Output Connection

About the counter input control signal Counter Gate Control Input (refer to the chapter 3 Connector Pin Assignment) acts as an input that validate or invalidate the input of an external clock for the counter. This function enables the control of an external clock input fo r th e cou nt er . Th e ext ern al clock for the counter is effective when input is "High", and invalid when input is " Low ". I f un con necte d, it i s a pul l-u p in the b oar d (car d) a n d rem ain s "High". Therefore th e ex ter n al c lo ck fo r th e co unte r i s ef f ect iv e wh en th e cou nt er gat e con t ro l inp ut is not connected.

CAUTION

- Do not short the output signals to analog ground, digital ground, and/or power line. Doing so may damage the board.

- Do not connect a digital output signal to any other digital output, either on the board or on an external device, as this may cause a fault on the board.

Reference For the operation timings for control signal input, see ”Control Signal Timings” in Chapter 6

“Hardware”.

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4. Functions

This chapter describes the different functions that can be implemented using the hardware and driver together. Unless stated oth erw is e, the driv er is a ssu me d to be AP I-AIO(WD M).

Analog Input Function

The board converts analog signals to digital data according to the resolution and stores it in memory. You can set a variety of conditions for analog input, inc luding the in put chan nel , sa mpli ng period , an d sampling start/stop conditions. Analog input processes are classified as follows:

1.Setting the Conversion Condititions

Starting/Stopping Operation

Resolution

Input Mod e

Channel

Channel conversion order

Range

Data transfer method

Memory

Repeat

Start

Stop

Clock

Start Condition

Stop Condition

Delay

Event

3.Monitoring the Status and Acquiring Data

Status

Sampling

Repeat

Data aquisition

4.Reset

Status

Memory

* This function is available to th e AIO-160802 LI-PE and AI-1616L I-PE.

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4. Functions

1. Setting the Conversion Conditions

First, set the conditions for executing analog input. Resolution ”Resolution” signifies the number of bits used by an analog input device to represent analog signals. The

higher the resolution, the more f ine ly th e vol tag e range is segmented, allowing the device to convert analog values to digital equivalents more precisely. A device with a resolution of 12-bit divides the range width into 4096 segments. When the device covers the range of 0 - 10V, the minimum unit of converted voltages is 10÷4096 ≈ 2.44mV. If the device has a resolution of 16-bit, it is 10÷65536 ≈ 0.153mV instead.

AIO-160802LI-PE : The resolution is 16-bit. AI-1616LI-PE : The resolution is 16-bit. AO-1604LI-PE : The function is not available.

Input Mode ”Input Mode” indicates the method of connecting analog input signals.

The input modes available are single-ended input and differential input. The single-ended input mode is suitable for the environment in which the potential difference between the signal source and ground and noise components can be ignored. For the environment in which they cannot be ignored, the differential input mode is suitable. The number of channels available in differential input mode is half that in single-ended input mode.

Software setup of the input mode is not required as this board uses the single-ended input mode fix ed. Channel

”Channel” represents each channel No. of analog input signal. For channel numbers, see “How to connect the connectors” to “Connector Pin Assignment” in Chapter 3 "External Connection". The channel selection specifies the channel number or the number of channels (channel consecutive from channel 0) in which it wants to convert AD.

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4. Functions

Channel conversion order Normally, when performing conversion for more than one channel at each sampling, conversion is

performed consecutively starting from channel 0. Software setup is not required as this board uses a fixed channel conversion priority.

Range ”Range” means the range of voltages at which analog input can be performed.

Software setup of the range is not required as this board uses a fixed range of voltages . AIO-160802LI-PE : ±10V

AI-1616LI-PE : ±10V AO-1604LI-PE : The function is not available.

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4. Functions

Data transfer method A device buffer mode is available, which uses the device's or driver's conversion data storage memory.

- Device buffer mode When conversion starts, data is saved in the device buffer (memory on the device itself or in the driver). The device buffer can operate as FIFO or ring memory. The application calls an API function at an appropriate timing and fetches the conversion data from the device buffer. The device buffer mode provides function that allows the number of items of conversion data using the number of sampling times as a unit to obtain the number of items of conversion data directly from the voltage.

Device buffer mode

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4. Functions

Memory format This board uses device buffer transfer mode; it does not require software setup of the memory format.

Device buffer mode

- FIFO format In the FIFO (First In First Out) format, input data items are read from memory in the same order in which they were written to th e memory. Inpu t da ta items are fed out of the memory sequentially, where the oldest one is always read from the memory. The status monitor and application notification functions ar e provided, which chec k and repor t the state in wh ich the mem ory has store d a fixed amount of data or in which the memory has become full. The FIFO memory is used to obtain all input data from analog input in a short or infinite period of time.

- Ring format In the ring format, the memory contains storage areas arranged in a ring. Input data items are written to the memory sequentially. When it stores data exceeding the limit, it overwrites the area storing the previous item of input data. The status monitor and application notification functions are provided, which check and repor t the state in which data has been writte n to certain areas of m emory. The ring memory is used to obtain data where conversion has stopped due to some event, usually without obtaining data in the normal state.

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Repeat ”Repeat” indicates the number of repetitions of sampling to be executed, from when the sampling start

condition is satisfied until the end of sampling, including delayed sampling. The number of repetitions is set by means of software, for which conversion is repeated. You can set an infinite number of repetitions, in which case the conversion is terminated by the software abort command. Input data items are stored to the memory sequentially. The repetition state can be subject to status monitoring and application notification.

Clock The sampling clock controls the sampling frequency. You can select either the internal sampling clock,

external sampling clock.

- Internal sampling clock The clock signal from the on-board clock generator is used.

- External sampling clock The edge of the digital signal input from an external device is used for the sampling clock.

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Start Condition The condition for controlling the start of sampling can be selected from among software, input data

comparison, an external trigger. The conditions for controlling the start and stop of sampling are completely independent of each other; they can be set separately.

- Software The board starts sampling and storing input data to memory immediately after the operation start command is issued.

- Input data comparison When the operation start command is issued, the board compares the analog signal input through a specified channel to the value of the preset comparison level. If the analog signal satisfies the condition, the board starts storing input data. Level comparison conditions are set as two conditions: level and direction.

The above sketch shows that the level comparison condition is satisfied in the rising direction.

The start condition is satisfied when the analog signal at the specified c hannel passes the comparison level in the rising direction. Input data item s are stored to mem ory, starting with those at solid dots.

The above sketch shows that the level comparison condition is satisfied in the falling direction.

The start condition is satisfied when the analog signal at the specified c hannel passes the comparison level in the falling direction. Input data items are stored to memory, starting with those at solid dots.

If you set the level comparison directions to both directions, the start condition is satisfied when t he analog signal passes the level both in the rising and falling directions.

- External trigger The board starts waiting for an external control signal as soon as the operation start command is output. Sampling and data transfer to memory start when the specified edge (rising edge or falling edge) is input from the external control signal.

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Stop condition The condition for controlling the stop of sampling can be selected from among the last sampling count,

input data comparison , an ex te rn al t rigg er , an d sof tw ar e abo rt . The board stops sampling whenever an error occurs irrespective of the stop condition setting.

- Last sampling count The board stops sampling after storing input data to memory for the specified number of times of sampling.

- Input data comparison Once the board has started sampling, it compares the anal og signal input through a specified c hannel to the value of the preset comparison level. If the analog signal satisfies the condition, the board stops sampling. Level comparison conditions are set as two conditions: level and direction.

The above sketch shows that the level comparison condition is satisfied in the rising direction.

The stop condition is satisfied when the analog si gnal at the specified c hannel passes the c omparison level in the rising direction. Input data items are stored to memory, ending until those at solid dots.

The above sketch shows that the level comparison condition is satisfied in the falling direction.

The stop condition is satisfied when the analog si gnal at the specified c hannel passes the c omparison level in the falling direction. Input data items ar e stored to memory, ending until those at solid dots

If you set the level comparison directions to both directions, t he start condition is satis fied when the

analog signal passes the level both in the rising and falling directions.

- External trigger The board starts waiting for an external control signal after the specified number of samples have been performed. Sampling stops when the specified edge (rising edge or falling edge) is input from the external control signal.

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Delay Delayed sampling is performed after the sampling stop condition is satisfied.

When a sampling stop condition other than the software abort command is satisfied, the board performs sampling for the specified number of times of delayed sampling to store input data to memory. If you set the number of times of delayed sampling to 0, the board stops sampling the moment the sampling stop condition is satisfied.

Event ”Event” works as a function for reporting the occurrence of a certain board state to the application.

The following events can be used in combination depending on the specifications and purpose of the application.

- “AD conversion start condition satisfied” event This event occurs wh en th e AD con ve rsi on st a rt cond ition is satisfied. The event is nullified when the conversion start condition is “software”.

- “Repeat end” event This even occurs whenever a repetition is completed.

- “End of device operation” event This event occurs when the entire operation including repetitions is completed.

- “Stored specified sampling times” event This event occurs when sampling has been performed for the number of times set by software. This event can only be used in device buffer mode.

- Overflow event This event occurs at an attempt to store input data with the memory full.

- Sampling clock error event This event occurs when conversion stops as an error occurs due to a sampling clock period that is too short.

- AD conversion error event This event occurs when co nv ers io n stop s due to an AD con ve rs ion e rr o r.

2. Starting/Stopping Operation

Sampling is started by the software command. Once started, sampling can be stopped by the software command at any timing.

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3. Monitoring the Stat us and Ac qui ri ng Data

Software commands are used to monitor the operation status of t he device and to ac quire input da ta from memory. Status monitoring and data acquisition can be performed even during sampling.

Status The current state of the device can be checked by obtaining the device status.

The following types of device status are available:

- Device operating The “device operating” status remains ON, after the execution of the sampling start command until the board completes conversion, aborts operation due to an error, or stops sampling in response to the command.

- Waiting for start trigger This status remains ON, after the board starts sampling until the start trigger is input, if the conversion start condition is an external trigger or level comparison. The status is set to OFF when the input trigger is input to sta rt co n ver sion . The status is set to ON whenever the board enters the conversion start wait status even when repeated operation has been set.

- Specified sampling data stored This status is set to ON when input data stored in memory has reached the amount corresponding to the preset number of times of sampling. If the memory format is FIFO, the status is set to OFF when the amount of input data in the memory falls below the value corresponding to the preset number of times of sampling as data is acquired. Once the status is set to ON when the memory format is ring, it remains ON until it is reset.

- Overflow An overflow error occurs when an attempt is made to store input data to memory while it has been full of input data. When the memory format is FIFO, the board stops conversion. When the memory format is ring, the board continues conversion while overwriting existing data with new one.

- Sampling clock error This error occurs when the sampling clock period is too short.

- AD conversion error If the “device operating” status remains ON (without terminating conversion) for an extended period of time, the driver regards that state as an operation error and sets this status to ON. This error stops sampling.

Sampling The number of sampled items of input data stored in memory can be obtaine d by the software command.

This command can only be used in device buffer mode.

Repeat The current repeat count can be obtained by the software command.

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Data acquisition When using the device buffer, the conversion data stored in memory can be retrieved using a software

command. The figure below shows the corresp ond ence betwe en th e sampling count and the conversion channel for the conversion data stored in memory.

Input data is acquired differently depending on the memory format used.

- Data acquisition in FIFO format When FIFO memory is used, the oldest data is always read first. The following sketch shows an image of data acquisition in FIFO format. When data is acquired from the memory, the free memory space increases by that data size. When data is acquired next, the oldest one of the e xisti ng data item s is t ake n from t he m emory i n the same way. The FIFO memory deletes data once that data is acquired.

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- Data acquisition in ring format When ring memory is used, data is read always with respect to the curre nt i nput dat a write posit ion. The following sketch shows an image of data acquisition in ring format. The sampling count obtained is always the number of times of sampling for up to the latest data (shaded portion below). The larger the number of samples taken, the older the data item acquired first. As the ring memory retains data even after that data is acquired, you can fetch the same data any number of times.

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Input data The following equation represents the relationship between input data and voltage. Voltage = Input data x (Max. range value – Min. range value) / Resolution + Min. range value The value of resolution for the 16-bit device is 65 536 .

The table below shows the relationship between input data and voltage in the ±10-V range.

Voltage Conversion data (16-bit)

+9.99970V 65535

: :

+0.00030V 32769

0V 32768

-0.00030V 32767

: :

-10.000V 0

Ex.: When inp ut data 49152 is inpu t at a resolutio n of 16 -bit in the ± 10 -V range

Voltage = 49152 x (10 - (-10)) ÷ 65536 + (-10) = 5.0

4.Reset

Various states can be reset by executing the following reset commands:

Status This command resets the sampling clock error status and AD conversion error status.

Memory This can only be used when the transfer mode is set to device buffer mode. This command resets the following memory related states.

- Resets the conversion data in memory.

- Resets the repeat count to 0.

- Resets the sampling count to 0 when a stop trigger is input.

- Resets the buffer overflow status.

- Resets the status information for the specified data save count.

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Analog Output Function

The board converts digital data to analog signals according to the resolution. You can set a variety of conditi ons for ana log outp ut, includi ng the output c hannel, sam pling peri od, and sampling start/stop conditions. Analog output processes are classified as follows:

1.Setting the Conversion Condititions

Resolution

Channel

Range

Output data

Data transfer method

Memory

Repeat

Setting data

Clock

Start Conditio

Stop Condition Event

2.Starting/stopping operation

Start

Stop

3.Monitoring the Status and Acquiring Data

Status

Sampling

Repeat

4.Reset

Status

Memory

* This function is available to th e AIO-160802 LI-PE and AO-1604L I-PE.

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