DI-740 hardware user`s manual
Contents
1. DATE Dec naw TAMBO COM All of the Ethernet devices will automatically appear in the list box when you run the TCP IP Manager except for non A instruments that have never been installed on your PC However only A instruments will be able to have their IP addresses altered Previous instruments will need to have an IP address manually assigned to them See Assigning IP Addresses for Non A Instruments In addition their model numbers and status will not register The model numbers of non A instruments will register as n a and the status will register as On Line meaning that the instrument is connected to the network and you have software installed for it but its exact status is unknown If you have never installed software for a non A instrument you will not see it at all in your Manager even if it is con nected to the network If they are available non A instruments will be able to access WINDAQ through the TCP IP Manager Datag TCP IP Manager Help Shift Click or Control Click to select more than one device Description weg Status by ken s desk DI 720ENA Off Line Instrument 2 DI 720EN4 Available lt i IP ddress 192 168 1 116 MAC Address 00 90 C2 C0 84 63 Device Descripton Ere Advanced Options Status After you have installed software to open the TCP IP Manager and consequently your Ethernet instrument click on your Start menu select Programs then click on2. DATAQ INSTRUMENTS The way PC based instrumentation should be DI 740 Series Transducer Based Data Acquisition System User s Manual Manual Revision A Software Release Level 1 Copyright 2006 by DATAQ Instruments Inc The Information contained herein is the exclusive property of DATAQ Instruments Inc except as otherwise indicated and shall not be reproduced transmitted transcribed stored in a retrieval system or translated into any human or computer language in any form or by any means electronic mechanical magnetic optical chemical manual or otherwise without expressed written authorization from the com pany The distribution of this material outside the company may occur only as authorized by the company in writing DATAQ Instruments hardware and software products are not designed to be used in the diagnosis and treatment of humans nor are they to be used as critical components in any life support systems whose failure to perform can rea sonably be expected to cause significant injury to humans DATAQ the DATAQ logo and WINDAQ are registered trademarks of DATAQ Instruments Inc All rights reserved A DATAQ INSTRUMENTS 241 Springside Dr Akron Ohio 44333 U S A Telephone 330 668 1444 Fax 330 666 5434 Designed and manufactured in the United States of America M 101028 Warranty and Service Policy Product Warranty DATAQ Instruments Inc warrants that this hardware will be free from defec
3. inneren cues en re EEE OS ROS 1 Analog Input enee Ee eegene ed EE 1 Analog Output tia ee Fe Le a Be BE EE 1 2 Specifications AAA seecsencdeuecesbenesesctedscssesecesaceeesceeeees 3 Signal CONNEC On u a rem a 3 Interface Characteristics una et ENER EEN Ee eebe ei 3 Analog Inputs engen laa a ll eat 3 Analog Outputs petita dd lon te A A A oleae 3 EXcitation Output 2 1 25 1 aus Ries ihn ihn boss italianas eiii 4 ie TT 4 Timing Input Output a hi illa 4 Scan E EE 4 A NR RR 4 On board Pi ana 4 Physical Environmental econo nennen take a ie aeee iaee Taa iaai 4 Power Supply Voltage and Power Consumption ussessesnersneesnesnnnennennennnnnnnesnnennnennn esse nnnesnenon 5 Se Getting Started EE 7 Unpacking ui 7 Applying POW GP tual ini pls ie e a ieaie eai iae 7 Connecting the DI 740 Series Instrument to your Computer uersesssesssensessnernnensennnnenennnne nennen 8 Parallel Printer Port Operation no ssiri iesi eiiie i E E E E E Sa 8 DI 40 EN Operation cusco anio 9 TEPAP Manager esmas cit lidera 10 SAMURAI a 10 DESC DL EE 11 See O OCN 11 MACIAS aaa 11 Start WD AQ 2 2 ee illo teat 11 Advanced Options macia E na 12 Frile Name EEN 12 Elle SIZE eet Eege en etl e E EE lg 12 Setup File Name esiteestiasrgt pidiera 13 Auto Stalin 13 ee 13 Change IP Address with TCP IP Manager c cconcccnnnnnnnnoncnonoconananonn nono nonnncnnnannncnnccn nac ncnnnos 13 Change NetWork yicsecssisiacchissoctedeacdists bessen
4. WINDAQ or whatever directory you specified when you installed software and double click on IP Manager All Ethernet devices that have been installed on your computer and or Getting Started 10 DI 740 Series User Manual are on the network will appear in the list box with their model numbers and current status except for non A instru ments as mentioned above The Status field has the following possibilities Available The instrument is ready to access WINDAQ In Use The instrument is already accessing WINDAQ Not Installed The instrument needs to have WINDAQ software installed on the host PC Off Line The instrument is not currently connected to the network but it has been installed at one time It may simply have the power turned off or be installed incorrectly On Line The instrument is a non A device but it is connected to the network and it has software installed on your PC The Manager is not certain if the instrument is available or not You will not know the true status of this instrument until you try to access WINDAQ with it If you click on an Available instrument all of the TCP IP Manager features will be available to you If you click on an On Line instrument all the features will be available to you except the ability to change the IP address of the instrument If you click on an instrument that is unavailable for any reason your options will be limited Description As a device is a
5. continue with step 6 to install WINDAQ software Before continuing make sure the WINDAQ Resource CD ROM is in your CD ROM drive The Windows Autorun feature should start the installation program when the CD ROM is inserted into the CD ROM drive If it does not click the Start button on the taskbar and then click Run In the text box that appears type d setup where d specifies the drive containing the CD ROM you inserted in step 2 and press ENTER A welcome dialog box appears on screen Select the Install Software for all other products except Starter Kits option and click OK If you purchased WINDAQ Pro or Pro software select the appropriate option and click OK If you did not pur chase software choose the WINDAQ Lite option and click OK Specify the instrument purchased and click OK Then specify the connection and click OK The Software License agreement will be displayed Read through the agreement carefully and either Accept and Continue or Cancel to exit the installation Enter the User Information in the appropriate text boxes and click OK Follow the instructions on screen to specify the directory where you want to install WINDAQ software We recommend you accept the default path but you can name this new directory anything you like Simply sub stitute the desired drive and directory in the Destination Directory text box Choose the OK button A dialog box is displayed asking if you would like to make backup c
6. 16 entry output counter list that allows you to write analog or digital output at the maximum conversion rate of the instrument Analog output is not available in DI 740 Ethernet and USB modules while Analog Input is being used Introduction 2 DI 740 Series User Manual 2 Specifications Signal Connections Signal connections are made directly to the removable terminal strips on DI 740 Series instruments Interface Characteristics Compatible computer architecture Analog Inputs Number of input channels Converter resolution Common mode rejection ratio Accuracy Crosstalk Any PC architecture Connects to computer via the parallel or printer port Supports standard bi directional or EPP communication modes Ethernet and USB models only support bi directional and EPP commu nication modes Optional communication interfaces include Ethernet and Universal Serial Bus USB 16 single ended transducer inputs 16 general purpose inputs 16se 8di 16 bit 80 dB minimum A 1 general purpose channels 0 25 of full scale range 100uv 75 dB 100kHz and 100 unbalance Sample throughput rate max samples second software selectable per channel Printer port USB Ethernet Maximum analog measurement range general purpose channels software se lectable per channel Maximum Input without Damage either input to ground Gain error Input offset voltage Input settling time Input impedance Analo
7. Parallel Printer Port Operation Plug the appropriate end of the supplied parallel communications cable to the 25 pin male connector labeled PRINTER PORT on the rear panel of the DI 740 Series instrument and connect the other end of this cable to your computer s parallel printer port Printer Port Connector Supplied Cable Getting Started 8 DI 740 Series User Manual It is important to note that your computer s parallel port may be operated in more than one mode In the case of DI 740 Series instruments other parallel port communication modes allow data to pass from the instrument to your com puter at higher speeds Depending on the age of your computer and or the sophistication of your parallel port you may have as many as four parallel port communication mode options standard bi directional PS 2 enhanced paral lel port EPP and extended capabilities port mode ECP DI 740 Series instruments support the following three par allel port operating modes Parallel Port Mode Maximum Data Throughput Standard 40 000 samples second Bi directional PS 2 80 000 samples second EPP 200 000 samples second Maximum stream to disk rate using WINDAQ software on a 350 MHz Pentium II machine running Windows 98 Triggered storage rates will be faster Contact DATAQ Instruments to determine expected maximum sample rates for other machine speeds and operating systems The parallel port mode you use will depend
8. configuring a private network one that will not be connected to the public Internet or directly to an existing in house network you can select IP addresses from the Internet Assigned Numbers Authority ANA List of Reserved IP Addresses for Private Networks These reserved address ranges are 10 0 0 0 to 10 255 255 255 172 16 0 0 to 172 31 255 255 192 168 0 0 to 192 168 255 255 These addresses are ignored by Internet routers and therefore do not have to be globally unique If you require further information a document that describes these addresses RFC 1597 Address Allocation for Private Internets is available on the Internet Assigning IP Addresses for Non A Instruments Each DI 740 EN instrument is assigned an IP address before it is shipped Every instrument has an IP address which is in addition to your computer s IP address that was just checked assigned in the previous procedure This IP address along with the instrument s physical device address or MAC address is printed on the bottom of the instru Getting Started 15 DI 740 Series User Manual ment By default all DI 740 EN instruments are initially assigned the same IP address 192 168 1 5 However the physical device address is unique for each instrument 192 168 1 5 IP Address 00 00 C9 09 11 CA Physical Device or MAC address ETHER NEY Q RESE A AC T A AX D TIVE O D 192 168 1 5 is assigned by default because it
9. is reserved for use on private networks or in other words it will not be in use on the public Internet As discussed in the previous section titled TCP IP Reference Information every device on a TCP IP network must be uniquely identified by an IP address Never attempt to assign a device an address already used by another device on the same network this IP address consists of the network ID and the device ID all devices connected to the same network must have the same network ID and subnet mask if the device has a modem or dial out capability but must have a unique device ID If by slim probability your network ID is 192 168 1 and device ID 5 is not being used by any other device on your network then your DI 740 EN will work as is and its IP address will never need to be changed Most likely there will be a conflict with your network ID or device ID or you may be connecting more than one DI 740 EN instru ment to your network In these instances you must change the DI 740 EN instrument s IP address so that each device has a unique identity on the network Use the following procedure to change the DI 740 EN IP address 1 With the assistance of your network administrator or with the information presented in the previous section titled TCP IP Reference Information obtain a new IP address suitable for your network Turn the instrument s POWER switch to the 0 off position then press and hold the RES
10. of DI 740 Series instruments A D subsystem is performed on channel 1 with all other chan nels returned to analog common The following figures illustrate the necessary connections CH30 CH31 CH32 S GND signal ground Calibration Verification 25 DI 740 Series User Manual Or if you are using the alternative voltage calibrator the following figure illustrates the necessary connections Voltage y CH2 Calibrator _ signal ground Offset Calibration Verification l Connect your voltage calibrator or combination DVM and voltage source to your DI 740 instrument as shown above Apply zero volts to the instrument or short the instrument s analog channel input to ground Open the WINDAQ Lite Pro Pro data acquisition screen Enable the channel you will use to quantify offset Since all channels are adjusted together any channel may be selected Enable a maximum burst sample rate of 50 000 Hz by selecting EDIT PREFERENCES MAX SAMPLE RATE Enable a WINDAQ sample rate of 50 Hz Set the Acquisition Mode to AVERAGE and the gain factor to 1 through WINDAQ s CHANNEL SETTINGS menu for the selected channel Referring to WINDAQ software s voltage display for the channel you re evaluating compare this value to that given in the OFFSET column of TABLE 1 for the selected gain factor Repeat steps 2 and 3 using a gain of 2 4 and 8 for the selected channel If any readings are out of the acceptable ranges described in T
11. removable terminal strips DI 740 User Manual which you are currently reading If an item is missing or damaged call the DATAQ Instruments at 330 668 1444 They will guide you through the appropriate steps for replacing missing or damaged items Save the original packing material in the unlikely event that your unit must for any reason be sent back to DATAQ Instruments Applying Power Use the following procedure to apply power to your DI 740 Series instrument 1 Plug the five pin DIN end of the power adapter cable into the five pin jack labeled POWER on the rear panel of the instrument 900 3 436 Vi oO O Power Adapter Cable Power Jack Getting Started 7 DI 740 Series User Manual 2 Plug one end of the supplied power cord into the power adapter and the other end into any standard 120VAC 60Hz single phase outlet A Power Cord Power Adapter If an alternate power source is to be used refer to the following pin out diagram for power requirements 9 to 36 V Common Connecting the DI 740 Series Instrument to your Computer All DI 740 Series instruments use your computer s parallel or printer port to interface digital and analog signals to your computer Optionally DI 740 Series instruments with Ethernet or USB communication ports can also be used to interface digital and analog signals to your computer although not concurrently with the printer port 3 Turn the POWER switch on
12. 6 MHz Capacity 240 elements Capacity 16 elements 64K samples 64K samples Any channel 8 bit 256 counts Analog Devices ADSP2181 32 MIPS 16 MHz external 64 MHz internal 8k words 8k words 7 29 W by 9 L by 2 52 H 16 removable screw terminals 3 3 Ibs 0 to 70 C Specifications 4 DI 740 Series User Manual Relative humidity 0 to 90 non condensing Storage environment Temperature 55 to 150 C Relative humidity 0 to 90 non condensing Power Supply Voltage and Power Consumption Voltage 9 36 VDC Power 35 Watts Specifications 5 DI 740 Series User Manual 3 Getting Started Unpacking The following items are included with each DI 740 Series instrument Verify that you have the following DI 740 Series instrument Communications cable designed to connect the DI 740 Series instrument to your computer s parallel or printer port If you ordered a DI 740 USB you will have a second cable designed to connect the instrument to your computer s USB port The WINDAQ Resource CD ROM containing all software If you ordered WINDAQ Pro or WINDAQ Pro record ing software with your DI 7xx Series instrument an extra cost option there will be a sticker with a password on the sleeve of your CD ROM This password will give you access to that software If you did not order WINDAQ Pro or WINDAQ Pro recording software the WINDAQ Lite recording software will be available to you without a password 16
13. 95 that allows you to convert IP addresses to physical device addresses also known as MAC addresses Like ping arp usually resides in the same directory as Windows 95 files At the DOS prompt enter the following line and press the ENTER key arp s new IP address physical device address For example windows c windows gt arp s 138 239 252 18 00 00 c9 00 c1 a9 Remember your instrument s physical device address or MAC address is printed on the bottom surface of your instrument Validate the new IP address assignment with ping At the DOS prompt enter the following line and press the ENTER key ping new IP address For example windows c windows gt ping 138 239 252 18 This time you should receive a response messages showing the number of bytes received and time information A response indicates the instrument can communicate using the new IP address If you do not receive a response check your connections the previous steps and your command syntax Then repeat this step after waiting approximately 30 seconds Be patient sometimes time is a factor Repeat until you receive a response Launch Telnet to restore bi directional communications Telnet is a TCP IP application that comes with Win dows 95 and allows you to log in or access devices on a network This step is required because the new IP address assigned in step 5 by default gets assigned in unidirectional mode At the DOS prompt enter the fol lowing line and pr
14. ABLE 1 arrange to have your instrument recali brated by DATAQ Instruments Full Scale Span Calibration Verification 1 Referring again to TABLE 1 set the instrument s gain to and apply the voltage indicated by the SPAN VOLT AGE column of TABLE 1 to the selected channel Note that since all channels are calibrated together any channel may be selected 2 Verify the reading by comparing the value displayed by WINDAQ software with the value of TABLE 1 in the SPAN ACCURACY column 3 Repeat for gain selections of 2 4 and 8 4 If any readings are out of the acceptable ranges described in TABLE 1 arrange to have your instrument recali brated by DATAQ Instruments TABLE 1 Gain Factor Offset 0V Span Voltage Span Accuracy 1 OV 20mV 9 800V 9 800V 25mV 2 OV 10mV 4 900V 4 900V 12 5mV 4 OV 5mV 2 400V 2 400V 6 25mV 8 OV 5mV 1 200V 1 200 3 125mV Excludes offset errors Calibration Verification 26 DI 740 Series User Manual 5 Block Diagram Isolated Excitation Source Internal EXA DC DC Converter EX DI 740 N PN Connections om Bes DA Field lt O Power ix ol V e T gt 19 36 VDC Buffer Vout Vin
15. Am 32 Channel Analog MUX x Gnd b g oe Gnd o 4Scal Ctrl 1 2 4 8 a Z ji gt gt Shunt Cal Parallel Printer gt e 16 f Port Interface TOPE gt Typical e gt Sa 80r16 32 bit System gt FIFO N Channel Clock pisces Scan List Detten Pk 0 Isolated Excitation Pre Trigger EES Source interna Post Trigger e 4 Control PN Connections en Optional o ay Ethernet Interface e EN System gt 14 bit Controller DAC bz Vout Analog Out Vin See Of CE Expansion Gnd JJ 16 Channel in Analog In l Gnd o Scal Ctrl rs L Shunt Cal Block Diagram 27 Bi DATAQ INSTRUMENTS DATAQ Instruments Inc 241 Springside Drive Akron Ohio 44333 Telephone 330 668 1444 Fax 330 666 5434 E mail support datag com Direct Product Links click on text to jump to page Data Acquisition Data Logger Chart Recorder Thermocouple Oscilloscope
16. DAQ window will open for that device Getting Started 11 DI 740 Series User Manual Advanced Options By checking the Advanced Options checkbox the dialog box will expand to include more options as shown below Datag TCP IP Manager Help Shift Click or Control Click to select more than one device Descript tion Modeltt odel Status by ken s desk DI 720ENA Off Line Instrument 2 DI 720ENA Available e L IP Address 192 168 1 113 Start WinD MAC Address 00 90 C2 C0 03 04 d r ie Device Descriptor Instrument 2 Enter Iw Advanced Options Iw File Name CAWINDAQENMest Browse File Size 360 KB Setup File Name none _Browse Auto Start Slave Mode IP Address e Let IP Manager Choose an Available IP Address Manually Specify an IP Address I E E fF Change Network IP Address 192 168 1 119 Change Network Description Realtek ATL8139 Family Network PCI Fast Ethernet NIC File Name File Name is the name of the data file including optional drive path and extension specifiers to which WINDAQ is to store data the target file Example C WINDAQ Click on the Browse button to find the path where you would like to save your file Once you have found the folder where you would like to save your file enter the file name and press the Save button This path will then appear in the File Name textbox If you type a file name without specifying a p
17. ET button Remove the Ethernet cable from DI 7xx While holding the RESET button in turn the POWER switch back to the 1 on position and continue holding the RESET button in for at least 30 seconds This erases the current IP address stored in the instrument s flash memory Open an MS DOS window click the Start button on the taskbar point to Programs and then click MS DOS Prompt Verify that this new IP address is available by running the ping utility The ping utility comes with Windows 95 but it is a DOS based application so it doesn t use the Windows 95 graphical user interface Because of this ping must be launched in a DOS window the reason for step 3 The ping utility usually resides in the same directory as Windows 95 files usually windows At the DOS prompt enter the following line and press the ENTER key ping new IP address For example Getting Started 16 DI 740 Series User Manual 10 11 12 windows c windows gt ping 138 239 252 18 You should not receive a response a response consists of messages showing the number of bytes received as well as time information This indicates the new address you have selected is not being used If a response is received select another IP address with the assistance of your network administrator and repeat this step Now reconnect the Ethernet cable to DI 740 EN Assign the new IP address by running the arp program arp is a DOS utility included with Windows
18. TI CEE EC EK EEE d d d d KF d LE LL e e N DB DB P dk ab PC Pp LY Mh ab H YH P N Ki A Ki N no Ki A o D D el A a N ap Ne A D ELLELE NLE E EER E Ai E EN EEE S OK a OG d OG OG Go SK o A EEE S LES amp amp amp Getting Started 23 DI 740 Series User Manual 4 Calibration Verification This section provides calibration verification procedures for the A D and D A subsystems of the DI 740 unit Your instrument is calibrated before it is shipped and therefore does not need immediate calibration Should your unit not comply with the calibration guidelines presented below arrange to have DATAQ Instruments recalibrate your instru ment Required Equipment e A precision DVM with resolution as a function of the input range being calibrated minimum DVM resolution Instrument FSR x 0 1 For example suppose we have a DI 720 P and we want to calibrate the 10 volt range the DI 720 delivers 10 volts at a gain of 1 10V x 0 1 10mV So we would need a DVM with a resolution of 10V or more to calibrate the 10 volt range e A stable voltage source with a stability specification equal to or greater than the minimum DVM resolution as calculated above required to calibrate the instrument at the highest desired gain OR e An alternative is to use a voltage calibrator with enough resolution as calculated above to calibrate the instru ment at the highest desired gain A D Calibration Verification Calibration verification
19. ange the advanced options The next time the device is started up these settings will take effect This option will be grayed out until you specify a File Name Slave Mode If you check the Slave Mode checkbox WINDAQ will automatically start up in slave mode when you press the Start WINDAQ button This option will be grayed out until you specify a File Name Change IP Address with TCP IP Manager Note that the TCP IP Manager feature to change IP addresses only works with A instruments If you do not have a A instrument consult the section on Assigning IP Addresses for non A instruments Unless you have a Dynamic Host Configuration Protocol DHCP server the TCP IP Manager will automatically assign an IP address to your instrument If you need to change the IP address the Manager allows you to do this If you would like the TCP IP Manager to choose an available IP address for you click on the radio button in front of Let IP Manager Choose an Available IP Address and then press the Change button If you have a specific IP address you want to give an instrument click on the radio button in front of Manually Specify an IP Address enter the address you would like and then press the Change button If you are not able to change the IP address to the one you have specified you will receive an error message Some reasons why you might not be able to specify that IP address are a You have a DHCP server and it do
20. ath the file will be saved in your WINDAQ directory File Size File Size is an optional number that specifies the maximum file size of the target data acquisition file If not specified the file size defaults to 360Kb The minimum size that may be specified is 1 156 bytes which is equivalent to the size of the WINDAQ file header The maximum size that may be specified is 3600000Kb A file size using K nomenclature may be supplied The K designator is interpreted as being equal to 1024 For example if 100K is specified the file created is 102400 1024x100 bytes It is not necessary to use K nomencla ture when specifying data file size The actual size of the waveform data file ultimately created on disk following data Getting Started 12 DI 740 Series User Manual acquisition depends on the following If WINDAQ is terminated before the end of the data file is reached the size of the resulting data acquisition file will be less than that specified by File Size WINDAQ data only consumes enough of the target file to contain its acquired waveform information releasing the excess If WINDAQ is terminated without storing any data to disk a file will exist that contains only the WINDAQ file header This file may be deleted or used as a Set up file to provide default conditions for another data acquisition file If WINDAQ is allowed to acquire data to disk until the target data acquisition file is full the file size of th
21. dded to the network the Description field will list it as a New Device It will remain this way until you give it a specific description that should mean something to your application like Press 1 or Test Stand 2 etc This can be done by clicking on the device filling in the Device Description text box and then hitting the Enter button Anyone else on the network who is also running the TCP IP Manager will see the new description you just entered except for non A instruments whose descriptions can only be seen locally IP Address When you click on a device its IP Address automatically appears under the list box An Internet Protocol IP address is a unique 32 bit number comparable to a house s street address that is used to send data from one device to another When a computer or other instrument is connected to the Internet or network an IP address must be assigned to it Unless you have a Dynamic Host Configuration Protocol DHCP server which assigns and manages IP addresses the TCP IP Manager will automatically assign an IP address to your instrument Except for non A instruments whose IP addresses will need to be assigned manually See Assigning IP Addresses for Non A Instruments If you need to change the IP address the Manager allows you to do this in the IP Address box that is under Advanced Options MAC Address When you click on a device the MAC Address also automatically appea
22. e target file may or may not be exactly equal to that specified in the command line The precise size depends upon the number of channels enabled during acquisition and whether this number is an even multiple of the specified file size When specifying a file size remember that one sample stored to disk requires two bytes Setup File Name Setup File Name is an optional previous data acquisition file including optional drive path and extension specifiers created by WINDAQ that when specified forces WINDAQ into exactly the same configuration as setupfile Virtually all data acquisition parameters are ported from the setup file to become the default conditions of the new data acqui sition file specified by d path filename ext Such parameters include but are not limited to the number of channels and type enable scaling constants engineering units display format compression display mode and gain The pur pose of the setup file is to allow instantaneous setup for similar but separate data acquisition runs To browse your directories to find the previous data acquisition file click on the Browse button locate the file and then click the Open button The specified file including its path will appear in the Setup File Name textbox Auto Start By checking this checkbox you are forcing WINDAQ to immediately start acquiring data to disk upon start up If you are using Auto Start you can open the TCP IP Manager and ch
23. er end of this cable to your computer s USB port A Dau We Connect USB Communications Cable here The addition of this new hardware will be sensed by Windows and the Add New Hardware Wizard will auto matically be launched anticipating the installation of a device driver for the new hardware 2 Insert the WINDAQ Resource CD ROM into your CD ROM drive The root directory of the CD contains all USB drivers 3 From the initial Add New Hardware Wizard screen click Next to get started then choose the search for best driver option recommended and click Next 4 Specify the CD ROM drive that contains the WINDAQ Resource CD ROM as the search location and click Next 5 Follow the on screen prompts Depending on how Windows was originally installed on your computer you may need additional files from your Windows distribution CD ROM to complete the driver installation When you Getting Started 18 DI 740 Series User Manual 10 11 12 13 14 see the following dialog box Windows has located the necessary device driver and is ready to install the required files Click Next to continue Add New Hardware Wizard Windows driver He search for the device Dataq DI 720 USB ADC Module Windows E now ready to instal the best denen fos this device Click Back lo selec a diferent driver o ckek Neat to continue Location of diwar Ce D ADI720NF With the driver installation complete
24. es not allow you to manually specify an IP address b That specific IP address is already being used by another device on your network or c That device is not available to have its IP address changed at this time Note The IP Manager adds load to the Ethernet traffic and DI 740 EN A Thus 1 Itis not advisable to keep multiple IP managers running all the time on multiple PCs on the network 2 Once WINDAQ is running you may turn off IP Manager Getting Started 13 DI 740 Series User Manual Change Network This button allows you to switch between multiple networks Two networks cannot be enabled at the same time using TCP IP manager You must open multiple TCP IP managers to access two networks on the same PC A Network description and the network card s IP address are displayed Choose the network and click OK to enable that network TCP IP Reference Information for Non A Instruments TCP IP uses several basic pieces of information to successfully communicate between devices on networks Two of these pieces of information are IP address and subnet mask Every device computer DI 740 EN instrument etc on a TCPAP network has an IP address This unique identifica tion is typically represented using dotted decimal notation In this format each byte 8 bit segment of the 32 bit IP address is represented by a decimal number ranging from 0 to 255 and is separated by a period 123 456 7 89 a typical IP address The four byt
25. es of an IP address combine to convey two pieces of information the network identification it defines a group of computers and other devices on a given network and the device identification it defines a computer or other device within that network 123 456 7 89 whole address defines network and device ID The first byte of an IP address identifies the network class There are three different classes for accommodating net works of different sizes With the network class defined by the first byte all four bytes the whole address are used to define network ID and device ID The table below shows how the network ID and device ID information is defined for each network class 1st byte 2nd byte li byte Ath byte Jg 123 456 7 89 Network Range of values Part of IP address that Part of IP address that Possible of Possible of class for 1st byte defines network ID defines device ID networks devices network A 1 126 1st byte 2nd 3rd and 4th bytes 126 16 777 214 B 128 191 1st and 2nd byte 3rd and 4th byte 16 384 65 534 C 192 223 Ist 2nd and 3rd bytes 4th byte 2 097 151 254 Notes Address 127 in the Ist byte is reserved for testing and other purposes Addresses 0 or 255 in any byte position and address 224 and above in the network ID part are reserved for special protocols Any in house or private TCP IP network that is not connected to the public Internet can use any netwo
26. ess the ENTER key telnet new IP address For example windows c windows gt telnet 138 239 252 18 The Telnet window appears with a flashing block cursor in the upper left corner Press the ESC key When the connection is made a login banner is displayed and Telnet prompts for a user name At the Enter Username gt prompt enter any two characters and press the ENTER key Telnet prompts for a server At the Server gt prompt enter su and press the ENTER key Telnet prompts for a password At the Password gt prompt enter system and press the ENTER key This is the default privileged password which does not echo back on your monitor Telnet responds with At the prompt enter change port 1 bidi ena and press the ENTER key This re enables bi directional communications with the instrument Getting Started 17 DI 740 Series User Manual 13 Asa check enter at the prompt and press the ENTER key Messages should appear indicating bi directional communications with the instrument are enabled 14 At the prompt enter Logout and press the ENTER key DI 740 USB Operation If you have the DI 740 USB and you want to use the optional USB communications interface you must use Win dows 98 or higher 1 With your computer powered Windows running and all other applications closed plug the appropriate end of the supplied USB communications cable into the USB port labeled USB on the rear panel of the instrument Con nect the oth
27. g Outputs Number of channels Resolution Output voltage range Output impedance Standard port 40 000 Bi directional port 80 000 EPP 200 000 200 000 samples second max 50 000 samples second max 10V full scale at a gain of 1 5V full scale at a gain of 2 2 5V full scale at a gain of 4 1 25V full scale at a gain of 8 30VDC or Peak AC 1 bit max 1kHz sample rate 1 bit max E 1kHz sample rate 4us to 0 01 at all gains 1 MQresistor tied to GND on the input channel One analog output 12 bit 1 part in 4 096 250kHz 10V full scale 10 MQ Specifications 3 DI 740 Series User Manual Maximum Sample rate samples second software selectable per channel Output offset voltage Excitation Output 15V 60 mA DC isolated per channel Shunt Cal standard port 40 000 bi directional port 80 000 EPP 250 000 1 bit max 1kHz sample rate Software activated through optical isolator to GND Timing Input Output Number of counters Resolution Base clock accuracy Counter input frequency Scan Lists Input Scan List Output Scan List Triggering Pre trigger length Post trigger length Trigger channel Trigger level hysteresis On board DSP Type Clock frequency Data memory Program memory Physical Environmental Box dimensions DI 740 Series T O connector Weight Operating environment Component temperature 240 input 16 output 1 part in 32 768 0 01 1
28. ions of the mask This means that it is possible to create more subnetworks but at the expense of fewer devices per subnetwork In many cases this type of subnet configuration is more appropriate than just using the default values Let s consider an example Say we want to add a DI 740 EN to an existing Ethernet network A look at the TCP IP properties dialog box on the PC we re installing the DI 740 EN to reveals IP address 192 168 1 44 Subnet mask 255 255 255 0 From this we know that the PC is connected to a class C network the network ID is 192 168 1 and the device ID the PC itself is 44 We also know that any other device added to this network must share the same network ID 192 168 1 and subnet mask 255 255 255 0 but must possess a unique device ID an unused value from 1 to 254 So to add the DI 740 EN to this network we must change the DI 740 EN s IP address from its default factory assigned value Information on how to do that is presented in the following section titled Changing an Instrument s IP Address Regardless of the number of interconnected subnetworks the important thing to remember is all devices PC s DI 740 EN s etc on the same subnetwork must use the same subnet mask and network ID to avoid conflicts Never attempt to assign a device an address already used by another device on the same network Each device on a network must have a unique IP address valid for its particular network If you are
29. n connector on the rear panel of the DI 740 pinout is as fol lows g O ES e A SW LE or IS SIS A 5 KP SP PD LF PLL LLCO LFL EK EK FE KF HE NV amp OAD TION WL 00000000000000000090 0000000000000000090 EE EE as De UPD DP pO A A EEN 5 Getting Started 21 DI 740 Series User Manual Rear Panel Instrument Rear Panel EXPANSION C D nA D o ce PRINTER PORT ACTIVE 10 Common 436 V Eje o OO POWER J Instrument Rear Panel with Ethernet Option EXPANSION ce PRINTER PORT ETHERNET O ACTIVE 9 to lt Common 36 V E Je Ye o OO POWER Instrument Rear Panel with USB Option EXPANSION C D D USB O ce PRINTER PORT ACTIVE 9 to Z Common 436 gt E S 50 o O0 POWER C PRINTER PORT The printer port provides a way to get your input signals into your computer All DI 740 Series instruments support standard bi directional and enhanced EPP printer port communication modes except for Ethernet and USB models which only support bi directional and EPP modes STATUS LAMPS Two status lamps ACTIVE In DI 740 P instruments this indicator will glow red whenever the instrument is streaming data This includes all digital input output where applicable analog output and analog inp
30. on how many channels you wish to record and how fast you wish to record them If for example you are only planning to record five channels at 20 Hz each then standard mode operation will be more than adequate 5 channels 20 Hz 100 Hz throughput which is well within the DI 740 Series 40KHz standard mode throughput If however you plan to record at a much higher sample rate for example five channels at 10KHz each the standard parallel port mode will not reliably record your data gap free since this throughput rate exceeds the DI 740 s standard mode maximum throughput 5 channels 10KHz 50KHz which is greater than the 40KHz standard mode maximum throughput spec To reliably record data gap free at this sample rate your computer s par allel port must be operated in something other than standard mode The only way to change your computer s parallel port operating mode if necessary is to access your computer s CMOS setup routine This usually can be accomplished by pressing a certain key or keys on your keyboard at the beginning of your computer s boot up process In some cases a message telling you which key to press is briefly dis played on your monitor at the beginning of the boot up process If you do not see such a message consult your com puter documentation for complete CMOS setup routine details DI 740 EN Operation If you have the DI 740 EN and you want to use the optional Ethernet communications interface plug the appropria
31. one sw AM Sh Vv Sh Vv Sh CH7 V Sh Ex Ex In In Gnd Cal Ex Ex In In Gnd Cal Ex Ex In In Gnd Cal Ex Ex In In Gnd Cal CH8 Side two i CH11 1 Sh Ex Ex In In Gnd Cal Ex Ex In In Gnd Cal Ex Ex In In Gnd Cal Ex Ex In In Gnd Cal V Sh v j Sh CH13 V Sh CH15 Vv CH10 CH12 CH14 CH16 DI 740 series instruments feature 16 removable terminal strips to make transducer connections to the instrument The section that follows describes how you can make these connections Getting Started 20 DI 740 Series User Manual Typical Field Connections Suppl E P Excitation KT Excitation RN Vin Buffered shunt cal IS Lin Common Shunt Cal Loosen PY Excitation Excitation Screwdriver V in lin Common Shunt Cal Process Current Connections 3 wire Supply Supply Excitation Output oe in lin Common Shunt Cal Buffered shunt calibration is available on many transducers Shunt calibration is accomplished by connecting the appropriate output termination to the ground of the electrical supply This connects a precision shunt calibration resistor to the sensor bridge and provides a calibrated step change in the output This simulated output from the shunt calibration circuit can be used to set up the sensor with the DI 740 Series without having to apply a known pressure to the transducer When optional cable 100679 is plugged into the expansio
32. opies of all files replaced during the installa tion This is offered as a safety courtesy backup copies are not required Choose the No button if you don t want to make backups Choose the Yes button to create backups If you decide to create backups you will be prompted to specify a backup file directory Specify a destination or group window for WINDAQ software icons Again we recommend the default path but you can specify any group window you like Enter the ID address of the box Every DI 740 USB is initially assigned an ID address of 0 If you are adding only one DI 740 USB to your sys tem do nothing Default ID address O will work fine Getting Started 19 DI 740 Series User Manual 16 If you are installing only one DI 740 USB on your system then installation is complete If you are installing multiple devices change the Device ID and run through the installation for each device this does not install mul tiple versions of the software Instrument Controls and Indicators The following describes the user accessible items on the DI 740 Series instruments Front Panel DI 740 Series BjPATAQ INSTRUMENTS CH1 CH 15 ACTIVE ACTIVE CH2 CH 4 CH6 CH8 CH 10 CH 16 ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE DI 740 Series instruments feature front panel connected LED per channel The corresponding light will glow green when a channel is connected to a transducer Side Panels Side
33. rk and device ID s For networks that connect to the public Internet Internet Service Providers get official network IDs through the InterNIC Internet Network Information Center A device uses the network ID and device ID to sort information traffic on the network or in other words determine what information it should receive or ignore All devices connected to the same network must have the same net work ID and subnet mask Getting Started 14 DI 740 Series User Manual The purpose of the subnet mask is to define or separate the network ID and device ID portions of an IP address Sub net masks are generally represented using the same dotted decimal notation described earlier however the bit val ues themselves define the mask Each bit assigned a 1 value in the subnet mask defines the corresponding bit of the IP address as a network ID bit Bits assigned a 0 value identify the device ID part of the IP address The following table shows default subnet masks Network class Dotted decimal notation Binary equivalent A 255 0 0 0 11111111 00000000 00000000 00000000 B 255 255 0 0 11111111 11111111 00000000 00000000 C 255 255 255 0 11111111 11111111 11111111 00000000 For each network class the subnet mask must at least use the 1 bits assigned in the default subnet masks listed above However any network class can be subdivided further by assigning 1 bits in the default 0 posit
34. rs under the list box In the TCP IP Manager the Media Access Control MAC address is your instrument s unique hardware number Because this is a unique number if you disconnect your instrument and then connect it again the Manager will remember the description that you gave to that particular instrument This number is unable to be changed Start WINDAQ When you select an Available device either one that is listed as Available or one that is listed as On Line that might be available from the list box and press the Start WINDAQ button WINDAQ will have access to the device If you select a device from the list box that is In Use Not Connected or Not Installed the Start WINDAQ button will not work If you would like to start WINDAQ with more than one device you can shift click which can select many devices that are listed in a row or control click which can select individual devices that are not beside each other If any of the devices you have selected have a status other than Available or On Line Start WINDAQ will be grayed out until you deselect the unavailable devices If any of the devices you have selected are On Line you will be able to press the Start WINDAQ button However the TCP IP Manager will not be able to tell until after you press the Start WINDAQ button whether that device is available or not If the device is unavailable for some reason no WIN
35. t sampling rate for USB 50KHz burst sampling rate for EN e Analog to Digital converters 16 bit A D converters for high resolution measurement accuracy 14 bits maximum resolution using WIND AQ software e 240 entry input list allows you to scan any sequence of input channels at any available gain The 240 entry input list also allows you to average 32 768 consecutive readings per channel for low noise output signals e 240 counters are assigned to the input list allowing each channel to be programmed for a different sample rate e Supports analog pre and post triggering of data acquisition based on the level and slope of a specified channel The following provides a brief overview of the major subsystems of the DI 740 Series Analog Input The DI 740 Series is a specialized unit designed specifically for transducer based measurements It features 16 chan nels where each channel provides its own isolated power supply for transducer excitation thus eliminating the need for separate power supplies when making measurements using transducers with built in amplifiers Each DI 740 input channel features software programmable input measurement ranges of 1 25 to 10 V full scale Analog Output DI 740 instruments has one 12 bit D A converter for outputting analog data DI 740 Series instruments feature a software programmable output range of 10V Introduction 1 DI 740 Series User Manual DI 740 Series instruments feature an on board
36. tage inicios decaer Eet See Eet 14 TCP IP Reference Information for Non A Instruments ooocconnccccnnccnonanonncnnnnccnnnconnnccnnncnnnnoss 14 Assigning IP Addresses for Non A Instruments u uueessesssenseessnersnnsnnessennnennennnennnense nn 15 DI 40 USB Operati n 2 2 ma Ren 18 Instrument Controls and Indicators sicpi riiete n EREE E 20 Front Panel yee te caves EE 20 Side Panel Si A AS 20 Typical Field Connections re da HR Ae a 21 Table of Contents v DI 740 Series User Manual Rear Panel TAN 22 4 Calibration Verification s ssccscsccssvecssesesesetsseedsensesecessuedcensens suave sdencesedsvensecssessecscensesseceesedssbansventosebessese 25 Required Equipment EEN 25 A D Calibration Verificati n geegent SB AE EE 25 Offset Calibration Verification ccccccccccecscscssscscscssscecececeecececececscsesceesesceseseseseeeseeeeeeeesesesssaseeeeecs 26 Full Scale Span Calibration Verification 2 0 0 0 cccceccccesccesssceeseecesceceaeeceeeeeeseceeaeceeaeceeaeeceaeeceeeeeeaeees 26 5 BIOCK Dia GPa idee eege Eege ees 27 Table of Contents vi DI 740 Series User Manual 1 Introduction Congratulations on your purchase of a DI 740 Series data acquisition instrument These instruments permit data acquisition on IBM personal computers and compatibles from either Windows or the DOS programming environ ments This manual describes how to connect and use all of the instruments in the DI 740 Series This man
37. te end of your Ethernet communications cable into the 10base T Ethernet port labeled ETHERNET on the rear panel of the instrument Note that you must disconnect the parallel communications cable from the 25 pin male connector labeled PRINTER PORT on the rear panel of the instrument if connected in order to use the Ethernet communica tions interface Parallel and Ethernet communications cannot be used concurrently Connect Ethernet Communications Cable here Getting Started 9 DI 740 Series User Manual TCP IP Manager The TCP IP Manager was created to manage all DATAQ Instruments Ethernet models that are connected to a net work and installed on your PC From one computer you can read and assign IP addresses access WINDAQ and change settings for most Ethernet Instruments connected to your network Unfortunately the Manager can only change IP addresses for A Ethernet Instruments As a general rule these are instruments that were purchased after December 2001 If you are not sure if you have a A instrument consult the label on the bottom of your instrument as shown in the following figure If the model number ends in a A i e DI 740 EN A then you will be able to use all of the features of the Manager If not then you have a previous version and the Manager s access to that instrument will be limited Look here to see if you have a A instrument This label is an example of a device that is DATAQ INSTRUMENTS _
38. ts in materials and workmanship under normal use and service for a period of one year from the date of shipment DATAQ Instruments obligations under this warranty shall not arise until the defective material is shipped freight prepaid to DATAQ Instruments The only responsibility of DATAQ Instruments under this warranty is to repair or replace at its discretion and on a free of charge basis the defective material This warranty does not extend to products that have been repaired or altered by persons other than DATAQ Instru ments employees or products that have been subjected to misuse neglect improper installation or accident DATAQ Instruments shall have no liability for incidental or consequential damages of any kind arising out of the sale installation or use of its products Service Policy 1 All products returned to DATAQ Instruments for service regardless of warranty status must be on a freight pre paid basis 2 DATAQ Instruments will repair or replace any defective product within 5 days of its receipt 3 For in warranty repairs DATAQ Instruments will return repaired items to the buyer freight prepaid Out of war ranty repairs will be returned with freight prepaid and added to the service invoice DI 740 Series User Manual Table of Contents Warranty and Service Policy ssc ccadscscicdsasccoctsssoncsesccvsctcsonssesocvissedensstevensdsusecoatesesasseseesssesecsssesccsssedeosstess iii 1 Tntr duet on E 1 Features
39. ual is writ ten with the assumption that you have a general understanding of data acquisition digital I O and DSP operations and that you possess enough proficiency in software to write your own application and or diagnostic programs Features The DI 740 Series provides the following features e All instruments connect to the parallel port of any desktop transportable notebook or laptop PC compatible computer Most communicate through the PC s parallel port in standard bi directional or EPP mode Ethernet and USB models can only communicate in bi directional or EPP modes Models DI 740 EN and DI 740 USB add optional Ethernet and USB communication modes respectively e Per channel software configurable settings Input gain Sample rate Intelligent Oversampling Modes Signal averaging maximum value minimum value and last point DI 740 Series 16 transducer inputs and 16 general purpose inputs General purpose inputs those connected directly to a multiplexer Each channel can be configured for sin gle ended or differential operation on a channel by channel basis General purpose inputs can have gain fac tors of 1 2 4 or 8 applied on a channel by channel basis e Flexible power requirements All instruments operate from any standard 60Hz 120V AC wall outlet with the supplied power adapter Or power the instruments from any 9 to 36 volt DC source such as a car battery e 200KHz burst sampling rate for parallel port module 200KHz burs
40. ut functions In DI 740 EN instruments this indicator will glow red whenever data is sent back to the host computer In DI 740 USB instruments this indicator will glow when the USB controller is enabled POWER This indicator glows green when power is applied to the DI 740 Series instrument Getting Started 22 DI 740 Series User Manual POWER INPUT JACK Allows you to apply power to the instrument Power can be applied with the included power adapter or you can use an alternate source as long as it is suitable 9 to 36VDC 3A maximum POWER SWITCH Controls power to the DI 740 Series instrument is on 0 is off ETHERNET PORT In addition to printer port communications the DI 740 EN adds Ethernet communication capa bility with this 10base T port Note that the Ethernet communication interface cannot be used concurrently with the printer port RESET SWITCH A reset switch for resetting Ethernet communications USB PORT In addition to printer port communications model DI 740 USB adds Universal Serial Bus USB com munication capability with this port Note that the USB communication interface cannot be used concurrently with the printer port EXPANSION PORT When being used for expansion models DI 75B DI 725 and DI 725E are plugged directly into this connector The input signals are then connected to the DI 75B DI 725 or DI 725B expansion instrument Pin out is as follows ne amp O SE ES EE of S A RE RR
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