CIO-EXP32 User`s Guide - Measurement Computing
Contents
1. S Ta z a j dali E OPTA z FIT FT HT tL T H HH H HT T TELETELE Une PEDEES Re UE e nmm O RUN RE RL TS TOA OSCE AISO ER E ee woe CE ea eee ee 28 Optional components You can also order the following MCC products to use with your CIO EXP32 C37FF x C EXP2DAS16 10 C PCPOWER 10 BP POWER Additional documentation In addition to this hardware user s guide you should also receive the Quick Start Guide available in PDF at www mccdag com PDFmanuals DAQ Software Quick Start pdf This booklet supplies a brief description of the software you received with your CIO EXP32 and information regarding installation of that software Please read this booklet completely before installing any software or hardware Unpacking the CIO EXP32 As with any electronic device you should take care while handling to avoid damage from static electricity Before removing the CIO EXP32 from its packaging ground yourself using a wrist strap or by simply touching the computer chassis or other grounded object to eliminate any stored static charge If any components are missing or damaged notify Measurement Computing Corporation immediately by phone fax or e mail Phone 508 946 5100 and follow the instructions for reaching Tech Support Fax 508 946 9500 to the attention of Tech Support Email techsupport mccdag com CIO EXP32 User s Guide Installing the CIO EXP32 Connecting to the A D board There are two 37 pin D type connector2. Analog output specifications Number of channels 2 Digital input Table 4 Analog input specifications Configuration Number of channel Input high Power consumption Table 5 Power consumption specifications 300 mA typical 390 mA max Environmental Table 6 Environmental specifications Operating temperature range 0 to 60 C Storage temperature range 40 to 100 C Humidity 0 to 90 non condensing 24 CIO EXP32 User s Guide Specifications Main connector and pin out Table 7 Connector specifications Compatible cables with connector P1 C37FF x connecting to additional CIO EXP32 boards Compatible cables with connector P2 C37FF x connecting to a DASO8 board C EXP2DAS16 10 connecting to a DAS16 board Table 8 Connector pin out Pin Signal Name Pin Signal Name 1 12V PC Bus 20 12V PC Bus 2 NC 21 NC 3 NC 22 NC 4 NC 23 NC 5 NC 24 NC 6 NC 25 NC 7 MUX Addr 1 26 NC 8 MUX Addr 2 27 NC 9 MUX Addr 3 28 Power GND 10 MUX Addr 4 29 5V 11 Output 15 30 Output 7 12 Output 14 31 Output 6 13 Output 13 32 Output 5 14 Output 12 33 Output 4 15 Output 11 34 Output 3 16 Output 10 35 Output 2 17 Output 9 36 Output 1 18 LLGND Output 37 Output O 19 NC LLGND 25 Ce Declaration of Conformity Manufacturer Measurement Computing Corporation Address 10 Commerce Way Suite 1008 Norton MA
3. LO RAD a ence nn een Net ete Can ne eer nC MOREE re ec Sa TEN toa 17 Chapter 3 FUNCIONANDO IS T 18 CIO Can QUIS TTT 18 CONNEC toa Si CAI SOUL CE 5 aaia aaia a aaia dupa a a a n aE 18 E NTR Lee eT 2 2 nosca pastora anna Aa re Ursa Ga a dio On OC aC RG aid aaa raio do nas ais da praia Ra 19 Cold junchon Compensa Te aca ear od E Da dA OR E ty aces TOR ad LE O E e ad 20 Open CHerMmOCOUP IG ACC quis eee ores ceo E 8 Deewana deste ER E ETAR 20 Low pass er 5 ala sie ce ont teaser ge ier nd neta sac da ecu itn do a GO Sp thet DS Rd Ae md dots 20 Ground n T TT 20 Input ped ancora agi SS SS csctloccmstitn ge tisnnesiitee tics 20 Amplification and Werrmocouples sees eee ans eee eee 20 Chapter 4 Programming and Developing Applications se neee enen ee 22 PEO OPAMIMIN CAT OU ASCS ra asso ja GA AEE EEEE a 22 P ck ged applications BLO Seoni a Sh diana Odu dadas a ssa 22 Chapter 5 DGT HGG sasa aca ape ees ea SR oe eas an Saad 23 AMOS IN Gage canas dE a a E a E dC A tases ona e Ca a 23 Cold FUNC HON COMMONS ALON sprint wonsantbvewadans E T balao dna Bad T 23 ET Te OIL Do qua 1 o 24 CIO EXP32 User s Guide Benge I ts V0 TTT 24 POW FCO U E e r eau dado rato SUS abs da Ea dn Sead and vaauins noma An ec dah pia dada 24 Environmental E H re U L U rea 24 NMaim conncetor and e Ear sas ara aa E 25 Preface About this User s Guide What you will learn from this user s guide This user s guide explains how to install
4. The switch shown in Figure 8 is configured for a gain of 700 500 200 For most thermocouple applications the gain should be set to at least 100 Refer to the section Amplification and thermocouples on page 20 for data on setting optimum amplifier gains when using thermocouples For most other applications the gain should be set to result in output signal levels as close to 5V or 10V depending on the range setting on the A D board as possible 15 CIO EXP32 User s Guide Installing the CIO EXP32 Solder gap switches Each analog input channel on the CIO EXP32 has three dedicated solder gap switches labeled C V and G on the circuit side under side of the board Each solder gap switch enables a different thermocouple option A typical set of solder gap switches is shown here VCG CI CoO Co CI Co Co Figure 9 Solder gap switches typical per channel A solder gap switch has two pads Turn on each switch by soldering the pads together to close them this is called a solder bridge When closed or bridged the pads connect resistors and capacitors to the input signals and enable the following options Open thermocouple detect V pad enables open thermocouple detection to alert you if a thermocouple breaks Note that your software program must be designed to recognize when a negative full scale condition exists since the input is pulled to minus full scale if the thermocouple wire is broken or disconnected
5. They are keyed so the cable will plug into the expansion connector easily when they are aligned see Figure 5 Personal Computer SI ooo L SY LED Power cable J3 to PC Power Supply x Signal cable P2 to ClIO DASO8 analog board CIO EXP32 Figure 5 External power cable installation 3 Run the power cable out the back of the computer through an expansion slot or other opening and replace the cover on the computer 13 CIO EXP32 User s Guide Installing the CIO EXP32 You can alternatively connect the C PCPOWER 10 to a BP POWER adaptor to bring PC power out of the computer This adaptor provides three standard power connectors mounted on a backplate Details on this product are available on our web site at www mccdaq com products accessories aspx Caution Be careful not to pinch the cable when you replace the cover if this cable is cut the resulting short circuit can damage the computer 4 Connect the other end of the power cord to the connector labeled OPTIONAL EXTERNAL 5V POWER P15 on the CIO EXP32 This end is keyed also Refer to Figure 3 for the location of this connector 5 Slide the power source select switch S3 to the EXT position A D board type Use the 4 pin jumper labeled A D BOARD TYPE to configure the CIO EXP32 for use with the DASO8 family of boards or the DAS16 family of boards Place the jumper in the position for the type of A D board you are using with the CIO EX
6. X500 Calibration Two offset potentiometers per bank 16 channels and one Cold Junction Compensation adjustment potentiometer per board Gain error Gain 0 002 typical 0 02 max Gain 10 0 005 typical 0 05 max Gain 100 0 01 typical 0 1 max Gain 200 0 02 typical 0 2 max Gain 500 0 05 typical 0 5 max Non linearity Gain 1 0 0005 typical 0 005 Gain 10 0 001 typical 0 01 max Gain 100 0 002 typical 0 01 max Gain 200 0 003 typical 0 01 max Gain 500 0 005 typical 0 02 max Temperature coefficient Gain 20 ppm C Gain 10 20 ppm C Gain 100 40 ppm C Gain 200 60 ppm C Gain 500 100 ppm C Offset 15 uV C CMRR 60 Hz 90 dB Input filter 7 Hz selectable through solder bridge C pad Open thermocouple detect 50 mV at positive input when thermocouple is open selectable through solder bridge V pad Input ground reference 100k ohms to ground selectable through solder bridge G pad Input leakage current V and G pads open 2 nA typical 6 nA max Input impedance Vand G pads open gt 100 Meg Ohms min Vand G pads shorted 100 k Ohms min Absolute maximum input voltage Power on 5 V Power off 20 V Cold junction compensation Table 2 Cold junction compensation specifications Parameter Specification CJC output voltage 24 mV C CJC zero crossing U mY at 0 C 23 CIO EXP32 User s Guide Specifications Analog output Table 3
7. channel to connect 7 jumper the CJC output to CJC circuit connects to channel 7 on the A D board GAIN switches Four DIP switches per each bank of 16 Gain all gain switches OFF S1 and S2 inputs that set the gain of the differential amplifier V C and G solder bridge Three connect pads per channel on the etch Open pads all are not bridged switches one for each input side under side of the CIO EXP32 board channel Bridge each pad to configures its associated input channel as follows Bridge the V pads to enable open thermocouple detection for the associated input channel Bridge the C pads to connect a 1 uF capacitor across the signal high and low inputs forming a low pass filter having a 7 Hz cutoff Bridge the G pads to enable a reference to ground for the associated input channel Figure 3 shows the location of the board jumpers switches and connectors The solder bridges are on the under side of the board and are not shown in the figure EXP and CJC Output to A D Board Type DAS channel jumpers jumper LE LELALIULi LL P2 connector DAS P1 connector Next EXP Gain Gain Power External power switches switch source switch connector S1 S2 s3 P29 Figure 3 Switch jumper and connector locations Before using the CIO EXP32 verify that the board is configured with the settings that you want Review the following information to change the default configuration of a jumper switch or solder ga
8. configure and use the CIO EXP32 so that you get the most out of its analog input and digital I O features This user s guide also refers you to related documents available on our web site and to technical support resources Conventions in this user s guide For more information on Text presented in a box signifies additional information and helpful hints related to the subject matter you are reading Caution Shaded caution statements present information to help you avoid injuring yourself and others damaging your hardware or losing your data lt gt Angle brackets that enclose numbers separated by a colon signify a range of numbers such as those assigned to registers bit settings etc bold text Bold text is used for the names of objects on the screen such as buttons text boxes and check boxes For example 1 Insert the disk or CD and click the OK button italic text Italic text is used for the names of manuals and help topic titles and to emphasize a word or phrase For example The InstaCal installation procedure is explained in the Quick Start Guide Never touch the exposed pins or circuit connections on the board Where to find more information The following electronic documents provide helpful information relevant to the operation of the CIO EXP32 S MCC s Specifications CIO EXP32 the PDF version of the Specifications chapter in this guide is available on our web site at www mccdaq com pdfs CIO EXP32 p
9. junction temperature is required to accurately calculate the thermocouple temperature This is known as cold junction compensation CJC You can map the sensor output to one of the A D board s analog inputs using the CJC output to DAS jumper block The CJC reference is required for accurate temperature readings The CJC temperature reference is universally used by software to compensate for the voltage induced at the cold junction the area around the screw terminals If you don t supply a CJC reference your temperature readings may be inaccurate Open thermocouple detect You enable open thermocouple detect OTD by closing the channel s associated V pad with a solder bridge OTD applies a full scale negative voltage to the high side of the thermocouple signal If a thermocouple opens the OTD voltage drives the signal on that channel to negative full scale Design your software program to recognize when a negative full scale condition exists since the input is pulled to negative full scale if the thermocouple wire is broken or disconnected Most software is set up to alarm for an open thermocouple when a temperature falls to negative full scale The CIO EXP32 will accurately measure thermocouples when the V pad is open but without OTD protection enabled Low pass filter A low pass filter is implemented by closing the C pad When bridged a 1 uF capacitor is connected across the signal s high and low inputs forming a low pas
10. on board semiconductor sensor provides a cold junction compensation CJC reference for thermocouple applications You select one channel on the A D board to send the multiplexed analog output to In addition you can output the CJC signal to a second A D board channel You can enable an input filter ground reference and open thermocouple detect options for each channel using on board solder gap switches You specify the gain of the multiplexer with an onboard gain switch You can power the CIO EXP32 internally from the A D board or externally from the computer s 5 V power supply connectors The CIO EXP32 board is mounted externally to the PC It can be placed in the open on a benchtop or in a case Software features For information on the features of InstaCal and the other software included with your CIO EXP32 refer to the Quick Start Guide that shipped with your device The Quick Start Guide is also available in PDF at www mccdag com PDFmanuals DAQ Software Quick Start pdf Check www mccdag com download htm for the latest software version Chapter 2 Installing the CIO EXP32 What comes with your CIO EXP32 shipment The following items are shipped with the CIO EXP32 Hardware CIO EXP32 Hi S Ki La O CH WR RIR Maal CM DCM LALA AAA A A LAL LA R aloi e aT c e un mm CM eee petra rte 6 Tee ee a Re A sammy e seeneeeeeeeeees G i i ss 10 TT TTT T TT eee err k i m a i m li G Cam TSS L K
11. position Use a C37FF x cable to connect to DASO8 series boards Connecting to a DAS16 Series A D Board Set the A D BOARD TYPE jumper to the DAS16 position Connection to a DAS 16 series board requires a special 37 conductor cable C EXP2DAS16 10 since the pin relationship of the CIO EXP32 and DAS16 signals is not 1 1 Refer to the C EXP2DAS16 10 cable pin out table below C EXP2DAS16 10 cable pin out P1 MUX 10 11 12 14 15 16 17 18 19 28 Information on signal connections General information regarding signal connection and configuration is available in the Guide to Signal Connections available at www mccdaq com signals signals pdf 1 CIO EXP32 User s Guide Installing the CIO EXP32 Configuring the CIO EXP32 Before using the CIO EXP32 there are switches and jumpers to set and one or more cables to install Please turn the PC power OFF before proceeding The CIO EXP32 is shipped with the factory default settings listed in the following table Factory configured default settings Power source select switch 5V power switch that sets the power INT internal 5V PC power S3 source to internal or external A D BOARD TYPE jumper Selects DASO8 or DAS 16 compatibility DASOS EXP OUTPUT TO DAS Selects the A D board channel to connect CHOto 15 0 jumper the multiplexed analog output to CH 16t031 1 EXP multiplexed output connects to channel O and 1 on the A D board CJC OUTPUT TO DAS Selects the A D board
12. the signal source to the CIO EXP32 Signal High Signal Low and Signal Ground A typical connection is shown in Figure 10 Signal High Signal Low Low Level Ground Figure 10 Differential channel connections Figure 11 shows a block diagram of the board s 16 analog inputs One input is selected by the four MUX address lines that are controlled by the A D board CH15 HIGH MUX ADDR EXP out to the DAS board Ground INA1 10 Gain Switch Figure 11 Analog inputs block diagram Connecting to a signal source You can connect analog inputs to the CIO EXP32 in either a floating differential or differential configuration Before connecting to a signal source measure the voltage between the signal ground at the signal source and ground at the PC Do not connect to a signal source if the voltage difference exceeds 10 V as you will not be able to obtain a reading Caution DO NOT connect to the signal if the voltage exceeds 30 V voltages over 30 V will damage the board and possibly the computer 18 CIO EXP32 User s Guide Functional Details Floating differential input A floating differential input has two wires from the signal source and a 100 K ground reference resistor installed at the CIO EXP32 input The two signals from the signal source are Signal High CH HI and Signal Low CH LO The reference resistor is connected between the CH LO and G Signal Ground pins Use a floating
13. 02766 USA Category Electrical equipment for measurement control and laboratory use Measurement Computing Corporation declares under sole responsibility that the product CIO EXP32 to which this declaration relates is in conformity with the relevant provisions of the following standards or other documents EU EMC Directive 89 336 EEC Electromagnetic Compatibility EN55022 1987 EN50082 1 Emissions Group 1 Class B EN55022 1987 Radiated and Conducted emissions Immunity EN50082 1 IEC 801 2 1987 Electrostatic Discharge immunity Criteria A IEC 801 3 1984 Radiated Electromagnetic Field immunity Criteria A IEC 801 4 1988 Electric Fast Transient Burst immunity Criteria A Declaration of Conformity based on tests conducted by Chomerics Test Services Woburn MA 01801 USA in November 1995 Test records are outlined in Chomerics Test Report EMI0168A 95 We hereby declare that the equipment specified conforms to the above Directives and Standards c Il Aayo f LA Z g H i L Tor L d Carl Haapaoja Director of Quality Assurance Measurement Computing Corporation 10 Commerce Way Suite 1008 Norton Massachusetts 02766 508 946 5100 Fax 508 946 9500 E mail info mccdag com www mccdaq com
14. CIO EXP32 32 Channel Analog Multiplexer Board User s Guide D l 1 1 Hi 6646660666666 a a NEEE EEA EM aaO POF H H OS TRR kinsi SSSPGSesseegas TITLI T Bap a 7 Ce E r c K v v J tite 1 L E i jt Va 4 Fa MEASUREMENT Vi Cas COMPUTING K CIO EXP32 Analog Multiplexer board User s Guide Va aX a AW k Faw MEASUREMENT COMPUTING Document Revision 1 January 2007 Copyright 2007 Measurement Computing Corporation Your new Measurement Computing product comes with a fantastic extra Management committed to your satisfaction Thank you for choosing a Measurement Computing product and congratulations You own the finest and you can now enjoy the protection of the most comprehensive warranties and unmatched phone tech support It s the embodiment of our mission e To provide data acquisition hardware and software that will save time and save money Simple installations minimize the time between setting up your system and actually making measurements We offer quick and simple access to outstanding live FREE technical support to help integrate MCC products into a DAQ system Limited Lifetime Warranty Most MCC products are covered by a limited lifetime warranty against defects in materials or workmanship for the life of the product to the original purchaser unless otherwise noted Any products found to be defective in material or workmanship will be repaired repl
15. Input filter C pad connects a 1 uF capacitor across the signal high and low inputs This forms a 7 Hz low pass filter that filters out signal noise that is picked up on the thermocouple wire Input ground reference G pad provides a reference to ground through a 100 k resistor This reference prohibits floating thermocouple readings You should bridge the C and G pads with solder for each channel that you install a thermocouple Bridging these pads reduces the noise present when you take temperature readings and helps to obtain a more accurate temperature reading The C V and G pads are all open when the board is shipped How to add and remove a solder bridge To add a solder bridge to a solder gap switch place a drop of solder on one of the pads and pull the soldering iron perpendicular to the pads from their center To remove a solder bridge slide the soldering iron toward one pad or the other Take care not to overheat the solder or the pads may lift Configuring the A D board Use InstaCal to change the following configuration options on your DASO8 or DAS16 Series board Single ended mode DAS08 setup The input mode of the A D board must be single ended to be compatible with the CIO EXP32 outputs Some of the boards in the DASOS series have differential inputs that can be converted to single ended inputs Refer to the user s manual for your hardware for information on conversion to single ended inputs DAS16 setup Th
16. O DAS16 in 16 channel mode Figure 7 EXP Channel Select and CJC Select jumper blocks The CIO EXP32 has two banks of 16 input channels Each bank is multiplexed into one output These two outputs connect to the jumper block labeled EXP OUTPUT TO DAS This jumper block determines which analog input channels of the A D board in the computer is connected to the outputs from the CIO EXP32 board 14 CIO EXP32 User s Guide Installing the CIO EXP32 The CIO EXP32 also has a semiconductor temperature sensor on board to measure the temperature of the board in the region of the screw terminals The temperature at the screw terminals is needed when thermocouples are used with the CIO EXP32 The temperature at the screw terminals is called the Cold Junction temperature and is needed to accurately calculate thermocouple temperature This is known as Cold Junction Compensation When a CIO EXP32 channel is used with a thermocouple install the CJC OUTPUT TO DAS jumper in the desired channel location If you are not using thermocouples do not install it Select the A D board channel to connect the multiplexed analog output to using the jumpers labeled EXP OUTPUT TO DAS Channels 0 15 are connected by default to A D board channel 0 Channels 16 31 are connected by default to A D board channel 1 Select the A D board channel to connect the CJC output to 1f required using the jumpers labeled CJC OUTPUT TO DAS CIO EXP CJC is connected by defau
17. P32 Figure 6 shows the jumper configured with its default setting of DASO8 al EE Lanp DASO08 DAS16 gt S L P2 pin19 P2 pin 18 Figure 6 Board type select jumper A D Channel for EXP Output Select a separate A D channel for each CIO EXP32 output that you plan to use Each CIO EXP32 has three potential signals the output of each of the two banks of 16 multiplexed inputs and the output of the CJC circuit The output of the CIO EXP32 selected channel is an input to the A D board Three rows of 16 jumper pairs located near the 37 pin connectors are labeled with A D board channel numbers see Figure 7 These channel numbers designate which of the A D board s input channels will be connected to the MUX board s output s Each CIO EXP32 output if used must be exclusively assigned to an A D channel using these jumpers In other words for all CIO EXP32 boards attached to an A D board only one jumper on any of the jumper blocks should be assigned to a particular channel Figure 7 shows the layout of the jumper blocks on the CIO EXP32 EXP OUTPUT TO DAS SESS SSee 6 88888888 HEHEHEHEH 01234567 8 9101112131415 LLL eT 8888888 TITE DAS8 16 DAS16 ONLY 88888888 HEHEHEHEHE VIL 8888888 HEHEHEHEH k s sss sss s s s mms ms s s ss CJC OUTPUT TO DAS These jumpers are for boards with 16 channels only such as the CI
18. aced with same or similar device or refunded at MCC s discretion For specific information please refer to the terms and conditions of sale Harsh Environment Program Any Measurement Computing product that is damaged due to misuse or any reason may be eligible for replacement with the same or similar device for 50 of the current list price I O boards face some harsh environments some harsher than the boards are designed to withstand Contact MCC to determine your product s eligibility for this program 30 Day Money Back Guarantee Any Measurement Computing Corporation product may be returned within 30 days of purchase for a full refund of the price paid for the product being returned If you are not satisfied or chose the wrong product by mistake you do not have to keep it These warranties are in lieu of all other warranties expressed or implied including any implied warranty of merchantability or fitness for a particular application The remedies provided herein are the buyer s sole and exclusive remedies Neither Measurement Computing Corporation nor its employees shall be liable for any direct or indirect special incidental or consequential damage arising from the use of its products even if Measurement Computing Corporation has been notified in advance of the possibility of such damages Trademark and Copyright Information Measurement Computing Corporation InstaCal Universal Library and the Measurement Computing logo are e
19. action produces a voltage which is dependent on the temperature at the point where the two metals touch There is a reaction at every point where dissimilar metals the thermocouple wire touch including the screw terminal where the thermocouple wire is connected to the CIO EXP32 board To process thermocouple signals the CIO EXP32 provides cold junction compensation CJC open thermocouple detect OTD and stable amplification for accurate temperature measurements Figure 12 shows a thermocouple connected to one channel of the CIO EXP32 The thermocouple has a positive and a negative lead If you re not sure which is the positive lead and which is the negative lead make a test hookup and use a match to heat the thermocouple If the temperature reading goes down switch the leads 3 9M Thermocouple positive lead Thermocouple a negative lead Ground Ground C Filter capacitor pad open V Open TC Detect pad open G Reference to ground pad open Pads are located on the circuit side All pads must be closed when thermocouples are used Figure 12 Typical thermocouple connection 19 CIO EXP32 User s Guide Functional Details Cold junction compensation The CIO EXP32 has a semiconductor temperature sensor to measure the temperature of the board around the screw terminals this is called the cold junction temperature This sensor provides a stable accurate and linear output which is temperature dependent The cold
20. df MCC s Quick Start Guide is available on our web site at www mccdag com PDFmanuals DAQ Software Quick Start pdf MCC s Guide to Signal Connections is available on our web site at www mccdag com signals signals pdf MCC s Universal Library User s Guide is available on our web site at www mccdag com PDFmanuals sm ul user guide pdf MCC s Universal Library Function Reference is available on our web site at www mccdag com PDFmanuals sm ul functions pdf MCC s Universal Library for LabVIEW User s Guide is available on our web site at www mcecdag com PDFmanuals SM UL LabVIEW pdf CIO EXP32 User s Guide this document is also available on our web site at www imcecdaq com PDFmanuals CIO EXP32 pdf Chapter 1 Introducing the CIO EXP32 Overview CIO EXP32 features The CIO EXP32 is a 32 channel signal conditioning accessory board supported under popular Microsoft Windows operating systems The CIO EXP32 is used to expand the number of analog inputs and the range of amplification of DASO8 and DAS16 series boards Using multiple CIO EXP32 boards a 16 channel A D board can be expanded to up to 256 inputs an 8 channel A D board can be expanded to up to 128 inputs The CIO EXP32 board has two banks of 16 differential inputs that are multiplexed into one single ended output channel Four digital inputs are controlled by the A D board s digital outputs and are used to select one of the multiplexed channels for output An
21. differential hookup when the signal source is floating with respect to ground such as a battery 4 20 mA transmitter or thermocouple and the lead lengths are long or subject to electromagnetic interference EMI pickup A thermocouple is an example of a floating differential signal source Instead of using an external 100 K resistor add a solder bridge between the G pads to enable a ground reference The floating differential input will reject up to 10 V of EMI Caution Use a voltmeter to verify that the signal source is floating or you may damage the CIO EXP32 and or your computer Differential input A differential signal uses three wires from the signal source Signal High CH HI Signal Low CH LO and Signal Ground G With a differential configuration you can connect the CIO EXP32 to a signal source with a ground that is different from the PC ground but with less than 10 V difference and still make a true measurement of the signal between CH HI and CH LO An example of this is a laboratory instrument with its own wall plug where there are sometimes differences in wall grounds between outlets Information on signal connections For general information about signal connection and configuration refer to the Guide to Signal Connections on our web site at www mccdag com signals signals pdf Thermocouples A thermocouple is made of two dissimilar wires that react electrically when in contact with each other The re
22. e input mode of the A D board must be single ended to be compatible with the CIO EXP32 outputs Most of the DAS16 series is switch selectable for either 8 differential or 16 single ended inputs When used with the CIO EXP32 set the switch to 16 channel single ended mode Range If the range of your A D board is switch selectable and you are using thermocouples set the range of the DAS board to 5 V if available or 10 V if not Some software packages base the calculation of temperature on these ranges only If you are not using thermocouples set the range of the DAS board to accommodate the maximum output expected from the CIO EXP32 board 16 CIO EXP32 User s Guide Installing the CIO EXP32 Polarity If your A D board has a UNI BIP switch for setting the range to either unipolar or bipolar the preferred setting is BIP bipolar If the range on your A D board is fully programmable the software you use for temperature measurement will determine the correct range to use Calibrating the ClIO EXP32 You should calibrate the CIO EXP32 after you first connect to a A D board if you change the gain setting of the input amplifier and at 6 month intervals 17 Chapter 3 Functional Details CIO EXP32 inputs The CIO EXP32 inputs are screw terminals which will accept 12 22 AWG wire Each channel has a screw terminal for signal high signal low and ground The inputs are differential which require three connections from
23. g s Universal Library provides access to board functions from a variety of Windows programming languages If you are planning to write programs or would like to run the example programs for Visual Basic or any other language please refer to the Universal Library User s Guide available on our web site at www mccdag com PDFmanuals sm ul user guide pdf Packaged applications programs Many packaged application programs now have drivers for your board If the package you own does not have drivers for your board please fax or e mail the package name and the revision number from the install disks We will research the package for you and advise how to obtain drivers Some application drivers are included with the Universal Library package but not with the application package If you have purchased an application package directly from the software vendor you may need to purchase our Universal Library and drivers Please contact us by phone fax or e mail Phone 508 946 5100 and follow the instructions for reaching Tech Support Fax 508 946 9500 to the attention of Tech Support Email techsupport mccdag com 22 Chapter 5 Specifications Typical for 25 C unless otherwise specified Specifications in italic text are guaranteed by design Analog input Table 1 Analog input specifications Number of channels 32 differential 2 banks of 16 Input range Switch selectable by bank additive values of X1 X10 X100 X200 and
24. ither trademarks or registered trademarks of Measurement Computing Corporation Refer to the Copyrights amp Trademarks section on mecdaq com legal for more information about Measurement Computing trademarks Other product and company names mentioned herein are trademarks or trade names of their respective companies 2007 Measurement Computing Corporation All rights reserved No part of this publication may be reproduced stored in a retrieval system or transmitted in any form by any means electronic mechanical by photocopying recording or otherwise without the prior written permission of Measurement Computing Corporation Notice Measurement Computing Corporation does not authorize any Measurement Computing Corporation product for use in life support systems and or devices without prior written consent from Measurement Computing Corporation Life support devices systems are devices or systems that a are intended for surgical implantation into the body or b support or sustain life and whose failure to perform can be reasonably expected to result in injury Measurement Computing Corporation products are not designed with the components required and are not subject to the testing required to ensure a level of reliability suitable for the treatment and diagnosis of people HM CIO EXP32 doc 3 Trademark and Copyright Information TracerDAQ Universal Library Harsh Environment Warranty Measurement Computing Corporation and the Meas
25. lt to A D channel 7 Channel selection for the DAS08 family The DASOS family of boards has eight channels of input so only CIO EXP32 jumper positions 0 7 are valid Many boards in the DASO08 family of boards have single ended inputs which is the correct type to connect to a CIO EXP32 If the inputs on the board type you are using are differential they must be converted to single ended inputs refer to the hardware user s manual supplied with your A D board for more information You can connect up to eight banks of CIO EXP32 inputs to a DAS08 series board for a total of 128 inputs Channel selection for the DAS16 family The CIO EXP32 jumper positions 0 7 and 8 15 can be used with the CIO DAS16 You can connect up to 16 banks of CIO EXP32 inputs to a DAS16 series board for a total of 256 inputs Most of the DAS 16 family of A D is switch selectable for either 8 differential or 16 single ended channels Set the switch for 16 channel single ended mode EXP Gain The CIO EXP32 has two banks of four DIP switches S1 and S2 that control the gain of the differential amplifier Figure 8 shows a typical switch x500 D x200 D x100 DT xo CY lt lt ON left Figure 8 Gain switch ND O B The gain associated with a switch is ON when the switch is to the left and OFF when the switch is to the right The gains are additive so a total of 16 different gains are possible The board is shipped with all switches off gain 1
26. n most cases the range on the A D board is set to 5 V The maximum voltage for some thermocouple gain combinations can exceed the maximum A D input range typically 5 V or even the maximum output voltage of the CIO EXP32 board 10 V 20 CIO EXP32 User s Guide Functional Details Output voltage vs gain at maximum temperature Min Temp C Max Temp C mV at Gain Output Volts Max Temp Max 4228 0 10 200 300 500 800 550 re s 56 55 fe n fes 55 oe 54 The table below lists the maximum readable temperatures for each gain and thermocouple type for an A D range of 5V w en Gain vs maximum readable temperatures Gain Max Readable Temps with A D Range 5 V oo f200 30 5o a Max Jasteic 307 C sf 86 C max MAX 30 ue oe sc Joe pue e fee max mx mx ose ore To read the maximum usable temperature for type K and E thermocouples set the gain to X10 or less 10 MAX E MAX 661 C MAX MAX After you change the gain setting calibrate the CIO EXP32 using the InstaCal utility 21 Chapter 4 Programming and Developing Applications After following the installation instructions in Chapter 2 your board should now be installed and ready for use In general there may be no correspondence among registers for different boards Software written at the register level for other models will not function correctly with your board Programming languages Measurement Computin
27. nto the body or b support or sustain life and whose failure to perform can be reasonably expected to result in injury Measurement Computing Corporation products are not designed with the components required and are not subject to the testing required to ensure a level of reliability suitable for the treatment and diagnosis of people Table of Contents Preface ADOUIthIS Users GUI css sisuisiaa i Snes Ena jo vic aids a a 7 Whatyou will lear TOM AIS user S CUT T COMVENUIONS AN R T CUTTO acta al rs Sawdon aes O Ra dO oa GR a RA AR a ih E 7 Where to Mnd More normato orerar iine a AT ENA ONTA OAA Wan TORE OTENE 7 Chapter 1 Intr duciha the CIO EXP3 2 aie a a a e ae a a a di pas l cana 8 Over view CIO EXPS Tea S S n een T E E E ET E E N N 8 SOL ale Tea aaa a aT Ra o Rd E E TE E A 8 Chapter 2 Installing B d 69 64 E 9 Whatcomes with your CIO EXP32 shipment TTT 9 ar Wy ALC en A T E A RR E EE E RR RR RR 9 Optional componentes aeaea e E ETE a a de E A O ee Mennueadte 9 LS Te EES Al COCUMICTLAL ON TTT 9 BSE T NC Gs lO ED TTT 9 COMNECHINS to the ID Doar HT 10 STOMA CADE ETT 10 GI 10 Commourins the CIO DDS TTT 1 PON er OIT 13 ADD DOE A TTT 14 AD Channel TOE EXP OUMU TT 14 EXP GA Ce Ne EE EEE DE AEE OAA O 15 DONIC E TAEAE e E E E E TET AE E E E E EOE O E E S ATE dd T 16 RST EEE YT the A D TT 16 K SIC CEC OCO e Et a da a Rd E A E 16 PR nN E E a sped Ra ad das aaa tet ORA rac Bae a E cn du a di A EAI T 16 PO aT TTT 17 Canonin ne Ge
28. p 12 CIO EXP32 User s Guide Installing the CIO EXP32 Power source You can supply 5V DC power to the via the 37 conductor cable from the A D board in the PC internal or via a separate optional power cable connected directly to the PC power supply external The internal method is adequate for powering up to two CIO EXP32 boards Supply external power connect the C PCPOWER 10 power cable when More than two CIO EXP32 boards are used with one A D board The A D board in use does not supply 5V to its connector Configure the CIO EXP32 board s power source with switch S3 for either internal or external power Figure 4 shows this switch configured in both positions 5V 5V S3 S3 E E EXT INT EXT INT Internal power External power 5V power from the 5V power from the PC via 37 conductor PC via 2 conductor signal cable optional C PCPOWER 10 power cable Figure 4 Power source select switch External 5 V PC power connections You can power the CIO EXP32 with your computer s 5V power supply using the optional C PCPOWER 10 cord Each end of the cable has a keyed Molex type connector To connect to your computer s power connectors do the following 1 Turn off power to the computer and remove the cover 2 Connect the black cable with the white Molex type connectors to one of the unused PC expansion power connectors from the PC power supply
29. s filter The bandwidth of this filter is 7 Hz Signals changing at rates greater than 7 times per second are damped The low pass filter helps to reject noise picked up along the thermocouple wire Since temperature measurement is generally a low frequency application the filter does not affect the temperature measurement The CIO EXP32 will accurately measure thermocouples when the C pad is open but the measurements may fluctuate due to noise present on the thermocouple wire Ground reference The CIO EXP32 inputs are fully differential which help reject noise on thermocouple wires Close the G pad thermocouples to work properly The G pad provides a reference from ground to the analog low input via a 100 K resistor When closed enough current passes through the resistor to provide a reference to ground The analog high and low inputs are still able to float within the common mode range Input impedance When you leave the V and G pads open the input impedance is greater than 100 M ohms When you short the V and G pads the input impedance is 100 k ohms Amplification and thermocouples The voltage from a thermocouple is very low and must be amplified to take advantage of the A D board s full resolution Use the GAIN switch to set the amplification of the CIO EXP32 board s 16 analog inputs see Figure 8 on page 15 The following table lists the theoretical amplifier output voltage at maximum temperature for each gain I
30. s on the CIO EXP32 P1 and P2 They are wired 1 1 Connector P1 is labeled NEXT EXP and is provided to daisy chain additional CIO EXP32 boards Use a C37FF x cable to daisy chain the CIO EXP32 boards together Do not exceed 50 feet in length Signals may be connected from the CIO EXP32 board to the A D board through one of two types of cables The cable used depends upon the type of A D board you are connecting to The table below lists the CIO EXP32 board s connectors and compatible cables Board connector cables and accessory equipment Compatible cables with connector P1 C37FF x connecting to additional CIO EXP32 boards Compatible cables with connector P2 C37FF x connecting to a DASO8 board C EXP2DAS16 10 connecting to a DAS16 board Signal cable The CIO EXP32 signal connector is nearly a mirror of the CIO DASOS signal cable Q NC LLGND 19 LLGND Output 18 S OUR Output 9 17 35 Output 2 Output 10 16 34 Output 3 Output 11 15 33 Output 4 Output 12 14 30 Output 5 Output 13 13 31 Output 6 Output 14 12 30 Outout 7 MUX Addr 4 1 E r 4 10 MUX Addr 3 9 gt NC OND MUX Addr 2 8 26 NC MUX Addr 1 7 25 NC NC 6 24 NC NC 5 23 NC NC 4 22 NC 12V PC Bus 1 ae ee es Figure 1 Connector P2 P1 Cabling The red stripe identifies pin 1 Figure 2 C37FF x cable 10 CIO EXP32 User s Guide Installing the CIO EXP32 Connecting to a DAS08 Series A D board Leave the A D BOARD TYPE jumper in the default DAS08
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