USB-4301 User`s Guide
Contents
1. Counter 1 counts us If Counter 2 is at 9 and Counter is at 34 671 the total time 1s 9 65 536 34 671 624 495 us 0 624495 s Interrupt input pin INT You can configure the interrupt input pin to perform the following tasks Generate an event notification that will be sent to the computer Latch in the eight digital inputs When this option is active the digital inputs always return the same value until a new active edge is received on the interrupt pin When the active edge 1s received the current value is latched at the input pins and held until the next active edge Interrupt latency when latching inputs There is a latency period between when an active interrupt edge occurs on the INT pin and when the action triggered by that interrupt occurs This latency can be as long as 100 us but typically varies from about 9 us to about 40 us between interrupts atch out a digital output value When this option 1s active the digital outputs do not change state until a new active edge is received on the interrupt pin New values sent to the digital outputs are stored The most recently received value is latched out and held at the next active edge Save the current value of all five counters to their respective Hold registers You can read the value of the counter when the interrupt was received from the Hold registers For more information on the configuration options for your USB 4301 refer to the USB 4300 Series sec2. Guide Installing the USB 4301 Unpacking the USB 4301 As with any electronic device you should take care while handling to avoid damage from static electricity Before removing the USB 4301 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 mccdaq com Installing the software Refer to the Quick Start Guide for instructions on installing the software on the Measurement Computing Data Acquisition Software CD This booklet is available in PDF at www mccdaq com PDFmanuals DAOQ Software Quick Start pdf Installing the USB 4301 To connect the USB 4301 to your system turn your computer on and connect the USB cable to a USB port on your computer or to an external USB hub that is connected to your computer The USB cable provides power and communication to the USB 4301 The USB 4301 installs as a composite device with separate devices attached When you connect the USB 4301 for the first time Found New Hardware popup balloons Windows XP or dialogs Windows 2000 display as each USB 4301 interface is detected After the USB 4301 is installed the Power LED r
3. connect 40 RSVD Do not connect 13 RSVD Do not connect 41 RSVD Do not connect 14 RSVD Do not connect 42 RSVD Do not connect 15 RSVD Do not connect 43 RSVD Do not connect 16 RSVD Do not connect 44 RSVD Do not connect 17 RSVD Do not connect 45 RSVD Do not connect 18 5V 5V output 46 RSVD Do not connect 19 DI CTL Pull up down connection 47 RSVD Do not connect 20 GND Ground 48 GND Ground 21 DIO Digital input 49 DOO Digital output 22 DI1 Digital input 50 DO1 Digital output 23 DI2 Digital input 51 DO2 Digital output 24 DI3 Digital input 52 DO3 Digital output 25 DI4 Digital input 53 DO4 Digital output 26 DI5 Digital input 54 DOS Digital output 27 DI6 Digital input 55 DOG Digital output 28 DI7 Digital input 56 DO7 Digital output 25 Measurement Computing Corporation 10 Commerce Way Suite 1008 Norton Massachusetts 02766 508 946 5100 Fax 508 946 9500 E mail info mccdag com www mccdaqg com
4. 2 Eight digital input connections DIO to DI7 One pull up down control connection DI CTL One oscillator output connection OSC One interrupt input connection INT Two voltage output power connections 5V Two ground connections GND Seven pins are reserved RSVD Do not connect signals to these pins Screw terminal pins 29 56 The screw terminals on the top edge of the USB 4301 pins 29 to 56 provide the following connections Three counter input connections INP3 INP5 Three counter gate connections GAT3 GAT5 Three counter output connections OUT3 OUT5 Eight digital output connections DOO to DO7 One pull up down control connection DI CTL Two ground connections GND Nine pins are reserved RSVD Do not connect signals to these pins 13 USB 4301 User s Guide Functional Details ma s st LO LO a ee a ea en a a N lt LO Er ERE EFO gt gt gt gt gt gt gt gt gt D0DO0O N0xHFILD0n x gt 1 gt lt gt Z200N00N00000200000000 NDO DO lt lt DOONXNYYXYXXXXODODODODDADOQ DOT NMNTNORADDOKNMNTNORADADOMKNMTNOO NI 00 00 00 00000 OM OM SSIS StS SS YO O OO LO 10 LO V0ODdOOOOVOOVVOVVOVOOVOIOOIOIOOVVVVVW VdOVDOVOV0VVOVOVOOVOVVVVVVVVVVVVVWN N Figure 4 USB 4301 signal pin out Counter terminals INP1 to INP5 GAT1 to GAT5 and OUT1 to OUT5 The counter terminals provide the connections for the clock input signal and gate signal to each c
5. B specifications USB device type USB 2 0 full speed Device compatibility USB 1 1 USB 2 0 Self powered 500 mA consumption max USB cable type B cable UL type AWM 2725 or equivalent min 24 AWG VBUS GND min 28 AWG D D USB cable Teng Environmental Table 10 Environmental specifications Operating temperature range 0to 60 C Storage temperature range 40 to 85 C 010 90 non condensing Mechanical Table 11 Mechanical specifications 27 mm L x 889 mm W x 35 56 User connection length 3 meters max Screw terminal connector type and pin out Table 12 Screw terminal connector specifications Wire gauge range 16 AWG to 30 AWG 24 USB 4301 User s Guide Specifications Screw terminal pin out Table 13 Screw terminal pin out Pin Signal Name Pin Description Pin Signal Name Pin Description 1 INP1 Counter 1 input 29 INP3 Counter 3 input 2 GAT1 Counter 1 gate 30 GAT3 Counter 3 gate 3 OUT1 Counter 1 output 31 OUT3 Counter 3 output 4 INP2 Counter 2 input 32 INP4 Counter 4 input 5 GAT2 Counter 2 gate 33 GAT4 Counter 4 gate 6 OUT2 Counter 2 output 34 OUT4 Counter 4 output 7 OSC Oscillator output 35 INP5 Counter 5 input 8 5V 5V output 36 GAT5 Counter 5 gate 9 INT Interrupt input 37 OUT5 Counter 5 output 10 GND Ground 38 GND Ground 11 RSVD Do not connect 39 RSVD Do not connect 12 RSVD Do not
6. Computing Corporation Life support devices systems are devices or systems which 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 Table of Contents ABOUt this USES GUIAS id 7 What you will learn from this OST SUMMA sebsaneaoeesomsacndenmeba armen oes 7 Conventions i EMIS Users OLN ood 23 oe see ces sat tastes ia pana 7 Wiere to Tnd mote into mt teles 7 Chapter 1 Introducing the USB 4301 ile 8 A ea A RE 8 Connecting a USB 4301 to your computer is CA idiota 8 Chapter 2 Installing the USBA30 Torii a a E a 9 What comes with your USB 4301 shipment A A AA AAA 9 EEEE WARS a pierdas ds 9 Additional do UMON Oee iin e aL 9 Wiipackine the USB A ES ReooS 10 tal SOWIE O A 10 stan US BA de 10 Chapter 3 Functional DetallS ensalada 11 USB AS Di o LES 11 ii a O e 12 USB Connector nad ia 12 SCALES LE Deiere ea EEE cused ate seu Utd edutde atresia ded EEA AENEA EEE A TEENE AES 12 Power LED li ii dit e 12 SONO ED S ean a dae 12 Counter terminals INP1 to INPS GAT1 to GATS and OUT1 to OUTS occcccnccnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnneniness 14 Digital input DIO to DI7 and output DOO to DO7 termina
7. Details Not recycle The counter will count from 10 000 to 0 and then start at 5 000 and count to 0 then stop If you select an edge gating option and Recycle mode is active the counter only resumes counting after TC when a new active gate edge is received BCD Binary mode Most applications use the binary mode of counting Binary mode causes the counter to always increment or decrement by a value of 1 The counter can have a value from 0 to 65 535 With binary mode a 4 bit binary number is represented by the 16 decimal numbers 0 to 15 0 0b0000 1 0b0001 9 0b1001 10 0b1010 15 0b1111 Ob is used to denote binary numbers For the numbers 0 9 there are four binary bits to represent one decimal digit and from 10 15 there are four binary bits to represent two decimal digits However in some applications it is useful to maintain the four bit to one digit correspondence so the numbers 0 9 remain the same but 10 15 and up to 99 are represented by eight bits four for each digit The numbers 100 999 are represented by 12 bits and 1000 9999 are represented by 16 bits This makes it easy to decode long binary numbers For example 0b1001 0001 0000 1001 equals 9109 in BCD Binary Coded Decimal mode and equals 37 129 in binary mode In BCD mode the counter can only contain values from 0 to 9999 instead of 0 to 65 535 as in binary counting The Special gate When you enable the Special gate option and specify
8. Ld 4 75 V min to 5 25 V max LEDs Table 7 USB 5V voltage specifications Power LED Indicates that the device s microcontroller has power and is running Status LED Indicates that the USB is configured blinks to indicate USB traffic Power Table 8 Power specifications Supply current Note 3 00 mA max Supply current 302 mA max User 5V output voltage range Connected to self powered hub Note 4 4 75 V min to terminal block pin 8 and 18 5 25 V max User 5V output current Bus powered and connected to a self powered 10 mA max terminal block pin 8 and pin 18 hub Note 4 Note 3 This is the total current requirement for the USB 4301 which includes up to 14 mA for the Power and Status LEDs but does not include current sourced from the User 5V output or from the digital output pins Note 4 Self Powered Hub refers to a USB hub with an external power supply Self powered hubs allow a connected USB device to draw up to 500 mA Root Port Hubs reside in the PC s USB Host Controller The USB port s on your PC are root port hubs All externally powered root port hubs desktop PC s provide up to 500 mA of current for a USB device Battery powered root port hubs provide 100 mA or 500 mA depending upon the manufacturer A laptop PC that is not connected to an external power adapter is an example of a battery powered root port hub 23 USB 4301 User s Guide Specifications USB specifications Table 9 US
9. USB 4301 9513 based Counter Timer Five independent 16 bit counters User s Guide 2 MEASUREMENT COMPUTING USB 4301 9513 based Counter Timer User s Guide A AN MEASUREMENT COMPUTING Document Revision 2 January 2007 Copyright 2007 Measurement Computing Corporation Your new Measurement Computing product comes with a fantastic extra Management committed to your satisfaction Refer to www mccdaq com execteam html for the names titles and contact information of each key executive at Measurement Computing 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 To provide PC based 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 Lifetime warranty Every hardware product manufactured by Measurement Computing Corporation is warranted against defects in materials or workmanship for the life of the product Products found defective are repaired or replaced promptly Lifetime Harsh Environment Warranty We will replace any product manufactured by Measurement Computing Corpor
10. aled internal clock default Software selectable divider Division by 1 16 default 16 Clock input frequency 20 MHz max 50 nS min period Internal clock frequencies Software selectable Generated from 12 MHz crystal 5 0000 MHz default oscillator 3 3333 MHz 1 6667 MHz 1 0000 MHz Internal clock frequency prescaler BCD scaling Internal clock divided by 1 10 100 1000 or 10000 or Binary scaling Internal clock divided by 1 16 256 4096 or 65536 21 USB 4301 User s Guide Specifications Digital input output Table 2 Digital I O specifications Number of I O 8 input 8 output Input low voltage 0 8 V max 0 5 V absolute min Programmed T O Digital I O transfer rate System dependent 33 to 1000 port reads writes or single bit reads writes per system paced second Pull up pull down configuration User configurable for pull up down through 47 kQ resistor Note 1 All pins floating default Digital type Discrete 5V TTL compatible Output 74ACT373 1 bank of 8 as output 1 bank of 8 as input Output high voltage 3 3 volts min 24 mA Vcc 4 5 V Input 74ACT373 Input high voltage 2 0 V min 5 5 V absolute max Output low voltage 0 8 volts max 10 mA Note 1 Pull up and pull down configurations are available using the DI CTL terminal block pin 19 The pull down configuration requires the DI CTL pin pin 19 to be connected to a GND pin pin 10 20 38 or 48 For a pull up configu
11. an also increment whenever the previous numbered counter reaches its TC TC n 1 For example if you select TC n 1 as the counter source for Counter 2 Input INP2 counter 2 increments or decrements when counter 1 reaches TC The previous numbered counter for counter 1 is counter 5 Note that any of the 16 sources is available for any of the five counters In other words the signal source for counter 3 can be Counter 5 Input or Counter 2 Gate or FREQ4 and so on Gate control The counter can be gated in several ways Level gating typically allows the counter to count only while the gate is active Edge gating on the other hand typically starts the counting when an active gate edge is received Level gating configuration options are active high level Gate n active low level Gate n active high level Gate n 1 and active high level Gate n 1 where Gate n is the Gate pin associated with the counter being configured Edge gating configuration options are active high rising edge Gate n and active low falling edge Gate n The counter can be gated by the TC of the previous numbered counter You can also disable gating Counting modes Each of the five counters has two associated 16 bit registers which can be used to store count values the Load register and the Hold register The Load register is used to load the starting value for the counter The Hold register can be used to store a second counter value or to save the current co
12. ation that is damaged even due to misuse for only 50 of the current list price I O boards face some tough operating conditions some more severe than the boards are designed to withstand When a board becomes damaged just return the unit with an order for its replacement at only 50 of the current list price We don t need to profit from your misfortune By the way we honor this warranty for any manufacturer s board that we have a replacement for 30 Day Money Back Guarantee You may return any Measurement Computing Corporation product 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 Please call for an RMA number first No credits or returns accepted without a copy of the original invoice Some software products are subject to a repackaging fee 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 HM USB 4301 doc 3 Trademark and C
13. e the DI CTL terminal pin to a 5V terminal pin pin 8 or 18 To pull down the digital pins to ground inputs read low when unwired wire the DI CTL terminal pin to a GND terminal pin pin 10 20 38 or 48 The DI CTL connection pulls the inputs to 5V or GND through a 47 k Q resistor Interrupt input terminal INT You can configure the interrupt input terminal pin 9 with nstaCal to trigger off rising or falling edge inputs You can program this pin to perform the following tasks Send an event notification to the computer The transfer rate is system dependent Latch in the digital inputs With this option the current value of the digital inputs 0 or 1 is read and stored The stored value is updated when an active edge occurs on this pin Latch out the digital outputs With this option digital outputs are not set to the value written until an active edge occurs on this pin Save the current value of a counter You can configure this option for each counter individually Oscillator output terminal OSC The oscillator output terminal pin 7 outputs a configurable clock frequency You can select the source of the oscillators and also select dividers for the oscillators programmatically to set the output rate Ground terminals GND The ground GND connections pin 10 20 38 or 48 provide a common ground for the digital and voltage output connections Oscillator output OSC You can set the oscillator
14. emains lit to indicate that communication is established between the USB 4301 and your computer Caution Do not disconnect any device from the USB bus while the computer is communicating with the USB 4301 or you may lose data and or your ability to communicate with the USB 4301 If the Power LED turns off If the Power LED is illuminated but then turns off the computer has lost communication with the USB 4301 To restore communication disconnect the USB cable from the computer and then reconnect it This should restore communication and the Power LED should turn back on 10 Chapter 3 Functional Details USB 4301 block diagram USB 4301 functions are illustrated in the block diagram shown here ___CTR1 Input pu Counter 1 CTR1 Gate CTR1 Output CTR2 Input USB Data Bus Counter 2 je lt TR2 Gate CTR2 Output Full speed USB 2 0 Compliant Interface 8 Counter 3 Counter 4 Counter 5 J0 D9UUOD O jeur MA19S USB 12 MHZ Clock 1 0 1 67 Microcontroller Generator 3 3 5 0 MHZ OSC OUT Interrupt Input Digital I O J0393U4U09 O BUIWI8 M S Figure 1 USB 4301 functional block diagram 11 USB 4301 User s Guide Functional Details External components The USB 4301 has the following external components as shown in Figure 2 USB connector Status LED Power LED Screw terminal banks 2 Screw terminal pins 29 to 56 Status LED Power LED Screw te
15. gating the gate can function as a hardware re trigger of the counting operation When an active gate edge is received the counter is reloaded from the Load register and begins counting even if the counter is already counting when the gate edge is received When you enable the Special gate option and disable gating the Gate pin associated with the counter being configured can select the reload source for the counter This requires the counter be in Load and Hold reload mode If the gate pin is low the counter is reloaded from the Load register If the gate pin is high the counter is reloaded from the Hold register Output control You can configure the output pin associated with a counter to behave in five ways Inactive with high impedance to ground Inactive with low impedance to ground Generate an active high pulse when the associated counter reaches TC Generate an active low pulse when the associated counter reaches TC Toggle its value every time the counter reaches TC 18 USB 4301 User s Guide Functional Details Example 1 Problem The application generates an active low pulse every time a button is pressed You need a simple event counter to count button presses Solution Any of the counters can be configured to do this fairly easily Do the following 1 Connect the input signal to the counter input pin and select that input pin as the source for the counter 2 Program the counter to Count negat
16. imum frequency of 20 MHz on the counter input pins and a maximum frequency of 7 MHz on the gate pins The table below applies to all internal and external sources Oscillator sources Source Description Divider OSC divider The signal output from the OSC pin is the same frequency as the frequency source divided by a value from 1 to 16 For example if you select a base frequency of 5 0000 MHz in InstaCal and choose FREQ3 as the internal frequency source 50 000 kHz from the Internal frequency values table above and 8 as the oscillator divider the frequency of the signal at the OSC pin is 50 000 kHz 8 6 2500 kHz Counter operation Each of the five counters performs essentially the same function their internal value either increments or decrements on each rising or falling edge of their source signal Since they are all 16 bit counters they can count up from 0 to 2 _1 65 535 or down from 65 535 to 0 When counting up 65 535 is considered to be the Terminal Count TC when counting down 0 is the TC There are a variety of configuration options that can be used to unlock the power of this basic functionality 16 USB 4301 User s Guide Functional Details Count source Each counter on the device can count from any of the available sources The sources for counting are the same five internal sources and ten external sources listed in the Oscillator sources table on page 16 with one addition each counter c
17. input programmatically to one of five internal frequency sources or one of 10 external input pins The oscillator output can be divided by any number from 1 to 16 before being output to the OSC pin Internal sources The base frequency for the internal frequency sources can be set through nstaCal to one of four different frequencies 1 0000 MHz 1 6667 MHz 3 3333 MHz or 5 0000 MHz This base frequency is used to generate the five internal frequency sources FREQ1 through FREQS FREQ is the same as the base frequency and each successive internal frequency following FREQ divides the base frequency by another multiple of 10 for example FREQ is the base frequency divided by 10 FREQ3 is the base frequency divided by 100 and so on This is illustrated in the following table 15 USB 4301 User s Guide Functional Details Internal frequency values for different base frequencies 1 0000 MHz 1 6667 MHz 3 3333 MHz 5 0000 MHz FREQ1 1 0000 MHz 1 6667 MHz 1 3333 MHz 5 0000 MHz FREQ2 100 00 kHz 166 67 kHz 133 33 kHz 500 00 kHz FREQ3 10 000 kHz 16 667 kHz 13 333 kHz 50 000 kHz FREQ4 1 0000 kHz 1 6667 kHz 1 3333 kHz 5 0000 kHz FREQ5 100 00 Hz 166 67 Hz 133 33 Hz 500 00 Hz External sources In addition to the five internal sources the frequency source for the oscillator can be an input signal connected to any of the five counter input pins INP1 INP5 or any of the five gate pins GAT1 GATS The input signal can have a max
18. ive edge transitions Count up No recycle Count in binary mode Reload from the Load register Disable special gate No gate control Make output control inactive O O Oe gt O Oe 61 3 Load the Load register with a value of 0 to start counting Example 2 Problem An external device generates an active high signal while a switch is depressed The switch is depressed for at most one second You need to measure the time the switch is depressed with microsecond accuracy Solution Microsecond accuracy for one second requires counting to at most 1 000 000 However each counter can count only to 65 535 You can use some counter features to cascade two of the counters in order to count higher Configure Counter 1 and Counter 2 as follows Configure Counter 1 1 Using nstaCal configure the counter 1 source for 1 MHz As shown in the Internal frequency values table on page 16 an internal base frequency of 1 0000 MHz corresponds to FREQ The internal base frequency of 1 MHz provides an ideal way to measure time to the microsecond since 1 count at 1 MHz equals 1 microsecond 2 The counter can count either up or down so for this example set the counter to count up 3 The counter should count only while the input signal from the switch is active To do this connect the input signal to the gate 1 pin GAT1 and configure the counter gate control for active high level Gate n 4 Load the Counter 1 Load Register with a value of
19. lS ooooonnnnnnnucucanananaaanananannoononono nono nro n ono nnnn nono non nono nono no non nnnnnos 14 Digital input control terminal DI CTL for pull up down configuration oooocccncnanooananananaoonono nono nono nono nn nn nn nn nro ro nn nro nono nnnnos 15 REEL OG WUC a NA talas 15 Ostilator Output termina OSO ao 15 HN a 15 Oscillator Output OS Oi aa 15 Internal SOU EE EE T S A E E E E a ES E E A E S E cal ea TE T 15 External SOM di a a ai 16 Dime OSC divider rss pis ar a 16 COUMEE cra O AA A ees 16 COU S OUNCE epar a O vaseueatenctnecnee A A EE A e e aE E 17 Gale CONTO leei A sis t ti 17 CAMA ect ees hc ees 17 Rellano anida ida da taa 17 Gs cen eon ne DAMES POPE OnE OEE SS ROUT a aT OOP MSES POPE eaDT DOr mSRe POPE ASE E A PARP n AE Bet EA Rane tant oan ON ment Ot en Re tr 17 BCD Binary MOSS ss 18 Mo AA O ce alta ae cil neta tine ca ced accel a aaa a a acid ac a aa taeda a aa 18 COU UE conto Laa A cree scm ictal ates 18 e al Ao A wr Teen ee Conn eer erent en ee et ee eer erat re er eee en 19 Example DA di ds do on las a anton erence 19 IMenaptapat pa IN cd eee 20 Chapter 4 A eS ees aa are a 21 SP A EE eases Za Die aLa OD ee A AE 22 AA a O E E E E T A E E A E eunadiamenmat 22 USB 4301 User s Guide A IE 23 Microcom ONCE acti eae ce atl lat hele lca lilac asad o 23 NS Bar SV VOl I 6 scion reece e Dd 23 B BW cease AAA ASA AS 23 TO VY Rae a ti bes ot R 23 USB PEA e e to e a A 24 E A O 24 Mechanic A e e E O Rn en me are ene
20. n The following electronic documents provide helpful information relevant to the operation of the USB 4301 MCC s Specifications USB 4301 the PDF version of the Specifications chapter in this guide is available on our web site at www mccdag com pdfs USB 4301 pdf MCC s Quick Start Guide is available on our web site at www mccdaq com PDFmanuals DAQ Software Quick Start pdf MCC s Guide to Signal Connections is available on our web site at www mecdag com signals signals pdf MCC s Universal Library User s Guide is available on our web site at www mccdaq com PDFmanuals sm ul user guide pdf MCC s Universal Library Function Reference is available on our web site at www mccdaq com PDFmanuals sm ul functions pdf MCC s Universal Library for LabVIEW User s Guide is available on our web site at www mccdaq com PDFmanuals SM UL LabVIEW pdf USB 4301 User s Guide this document is also available on our web site at www inccdag com PDFmanuals USB 4301 pdf Chapter 1 Introducing the USB 4301 The USB 4301 is a USB based high performance low cost counter timer device The USB 4301 1s designed with a 9513 counter timer chip The 9513 chip has five independent 16 bit counters 65 536 counts Each counter has an input source internal count register load register hold register output and gate The 9513 1s software programmable for event counting pulse and frequency measurement alarm comparisons and other input func
21. ne T ae 24 Screw terminal connector type and Pin OUt cocccccnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nn nn 24 Screw terminal PIO OU ide 25 Preface About this User s Guide What you will learn from this user s guide This user s guide explains how to install configure and use the USB 4301 so that you get the most out of its counter 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 i 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 nstaCal installation procedure is explained in the Quick Start Guide Never touch the exposed pins or circuit connections on the board Where to find more informatio
22. opyright Information TracerDAQ Universal Library Harsh Environment Warranty Measurement Computing Corporation and the Measurement Computing logo are either trademarks or registered trademarks of Measurement Computing Corporation Windows Microsoft and Visual Studio are either trademarks or registered trademarks of Microsoft Corporation LabVIEW is a trademark of National Instruments CompactFlash is a registered trademark of SanDisk Corporation XBee and XBee PRO are trademarks of MaxStream Inc All other trademarks are the property of their respective owners Information furnished by Measurement Computing Corporation is believed to be accurate and reliable However no responsibility is assumed by Measurement Computing Corporation neither for its use nor for any infringements of patents or other rights of third parties which may result from its use No license is granted by implication or otherwise under any patent or copyrights of 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
23. ounter and the output signal from each counter The clock gate and output sources are software selectable You can configure each counter to count up or down Digital input DIO to DI7 and output DOO to DO7 terminals You can connect up to eight digital input lines to the screw terminals labeled DIO to DI7 pins 21 through 28 and up to eight digital output lines to the screw terminals labeled DOO to DO7 pins 49 through 56 You can use the digital input terminals to detect the state of any TTL level input Refer to the schematic shown in Figure 5 When the switch is set to the 5V input DI7 reads TRUE 1 If you move the switch to GND DI7 reads FALSE 0 DI7 Figure 5 Schematic showing switch detection by digital channel DI7 For more information on digital signal connections For more information on digital signal connections and digital I O techniques refer to the Guide to Signal Connections available on our web site at www mccdaq com signals signals pdf 14 USB 4301 User s Guide Functional Details Digital input control terminal DI CTL for pull up down configuration All digital input pins are floating by default When inputs are floating the state of unwired inputs 1s undefined they may read high or low You can use the DI CTL connection pin 19 to configure the inputs to read a high or low value when they aren t wired To pull up the digital pins to 5 V inputs read high when unwired wir
24. ration the DI CTL pin should be connected to a 5V terminal pin pin 8 or 18 Interrupt Input Table 3 Interrupt specifications Implementation Interrupts the microcontroller operation on the device to execute one or more of several firmware routines Rising edge default or falling edge triggered user selectable Firmware routines Any or all of the following can be activated by the user Generate USB event notification Latch digital inputs Reading digital inputs returns most recently latched value Latch digital outputs Most recently written digital output value is latched Save counts on any all of counters 1 5 Event latency to PC 1 33 ms 4 ms typical 33 1000 Hz system dependent Note 2 Interrupt latency for latch operations 100 us maximum 80 us typical Note 2 The interrupt rate when transferring information to the PC event notification 1s limited by the USB to a theoretical limit of 1kHz Some systems may not be able to achieve this maximum rate due to differences in USB controller implementation traffic on the USB or operating system activity 22 USB 4301 User s Guide Specifications Memory Table 4 Memory specifications EEPROM 256 bytes EEPROM memory available for external use Microcontroller Table 5 Microcontroller specifications High performance 8 bit RISC microcontroller USB 5V voltage Table 6 USB 5V voltage specifications USB 5V VBUS input voltage range
25. rminal pins 1 to 28 USB connector Figure 2 USB 4301 components USB connector The USB connector provides power and communication The voltage supplied through the USB connector is system dependent and may be less than 5 V No external power supply is required Status LED The Status LED indicates the communication status of the USB 4301 It flashes when data is being transferred and is off when the USB 4301 is not communicating This LED uses up to 10 mA of current and cannot be disabled Power LED The power LED lights up when the USB 4301 is connected to a USB port on your computer or to an external USB hub that is connected to your computer Screw terminal banks The USB 4301 has two rows of screw terminals one row on the top edge of the housing and one row on the bottom edge Each row has 28 connections Use 16 AWG to 30 AWG wire gauge when making screw terminal connections Pin numbers are identified in Figure 3 12 USB 4301 User s Guide Functional Details USB 4301 YAA A AA AS pp an die ani ae a Y in in in Fin Mind GHOHISV Sansa nuvgonse 0901 DIJOA Jo Pin 1 Pin 28 Figure 3 USB 4301 screw terminal pin numbering Screw terminal pins 1 28 The screw terminals on the bottom edge of the USB 4301 pins 1 to 28 provide the following connections Two counter input connections INP1 and INP2 Two counter gate connections GAT1 and GAT2 Two counter output connections OUT1 and OUT
26. s for your USB 4301 No third party device driver is required The USB 4301 is plug and play There are no jumpers to position dual in line package DIP switches to set or interrupts to configure You can connect the USB 4301 before or after you install the software and without powering down your computer first When you connect an HID to your system your computer automatically detects it and configures the necessary software You can connect and power multiple HID peripherals to your system using a USB hub You can connect your system to various devices using a standard four wire cable The USB connector improves upon serial and parallel port connectors with one standardized plug and port combination Data can flow two ways between a computer and peripheral over USB connections Chapter 2 Installing the USB 4301 What comes with your USB 4301 shipment As you unpack your board make sure that the following components are included Hardware USB 4301 USB cable 2 meter length 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 USB 4301 and information regarding installation of that software Please read this booklet completely before installing any software or hardware USB 4301 User s
27. tion of the Counter Boards chapter in the Universal Library User s Guide This document is available on our web site at www mccdaq com PDFmanuals sm ul user guide pdf 20 Chapter 4 Specifications Typical for 25 C unless otherwise specified Specifications in italic text are guaranteed by design Counter Refer to the CTS9513 2 data sheet for complete 9513 specifications and operating modes The CTS9513 2 data sheet is available on our web site at www mccdag com PDFmanuals 9513A pdf Table 1 Counter specifications The 9513 device is programmable for 9513 device is The 9513 device is programmable for for Clock source Software selectable External Counter 1 5 clock inputs Counter 1 5 gate inputs Internal Terminal count of previous counter Internal clock frequency scaler default divided by 1 Gate Software selectable source External Active high or low level or edge counter 1 5 gate input Active high level previous gate or next gate All external gate signals GATx individually pulled up through 47 K resistors to 5 V Internal Active high previous counter terminal count No gating default Output Software selectable Always low default High pulse on terminal count Low pulse on terminal count Toggle on terminal count Inactive high impedance at user connector counter output Osc Out Software selectable source Counter input Gate input Presc
28. tions The 9513 can generate frequencies with either complex duty cycles or with one shot and continuous output modes You can chain up to five 9513 counters together using software to enable a 32 48 64 or 80 bit counter that does not require hardware connections The gate source and gating functions are software programmable An eight bit high current digital output port provides logic level control and can be used to switch solid state relays An eight bit digital input port can be used to sense contact closures and other TTL level signals For more information on the 9513 counter timer refer to the 9513 data sheet This document is available at www mecdaq com PDFmanuals 9513A pdf Software features For information on the features of InstaCal and the other software included with your USB 4301 refer to the Quick Start Guide that shipped with your device The Quick Start Guide 1s also available in PDF at www meccdag com PDEmanuals DAQ Software Quick Start pdf Check www mccdag com download htm for the latest software version Connecting a USB 4301 to your computer is easy Installing a data acquisition device has never been easier The USB 4301 relies upon the Microsoft Human Interface Device HID class drivers The HID class drivers ship with every copy of Windows that 1s designed to work with USB ports We use the Microsoft HID because it is a standard and its performance delivers full control and maximizes data transfer rate
29. unter value Most applications only use the Load register To start counting configure the counter for the desired mode and then load the Load register with the starting value with which to start the counting operation Each counter can be configured to count up or to count down The following sections explain the various configuration options Reload When the counter reaches TC it is always reloaded with a new value This new value comes from one of two sources Reload from the Load register This mode can be used to generate constant frequency pulse trains Alternately load from the Load register and then the Hold register This mode can be used for applications that require delayed starts or to generate pulse trains with variable duty cycles Recycle Each counter can be configured to count to TC and then stop counting or to continue counting after reaching TC In either case the counter is reloaded from the appropriate register when it reaches TC However if the Recycle mode is set to stop counting at TC and the reload mode is set to load from the Load and Hold registers it will count once to TC reload from the Hold register count again to TC and then stop counting For example if Counter 1 is configured as follows The Load 1 register contains the value 10 000 The Hold 1 register contains the value 5 000 Count down Alternately load from the Load and Hold registers 17 USB 4301 User s Guide Functional
30. zero since you want the counter to reach as high a count as possible before reaching TC 5 To cascade Counter 1 with Counter 2 turn Recycle mode on This is done so Counter continuously counts to TC then wraps around and starts counting at 0 again 6 Set reload to always load from the Load register since you want to restart at 0 after every TC 7 Enable binary mode 8 Set the Counter loutput to inactive Counter 1 requires no special gating For more information about debouncing mechanical switches refer to the Low pass to de bounce inputs section in MCC s Guide to Signal Connections This document is available on our web site at www mccdag com signals signals pdf 19 USB 4301 User s Guide Functional Details Configure Counter 2 1 Set the count source for Counter 2 to be the TC n 1 This causes Counter 2 to increment when Counter 1 reaches TC 2 Load the Counter 2 Load Register 2 with a value of zero since you want Counter 2 to start at 0 and count up Counter 2 requires no gating no special gate no reloading and no recycling 3 Enable binary mode When the button is depressed Counter 1 will start counting from 0 to 65 535 over and over again Every time Counter 1 reaches 65 535 Counter 2 increments by 1 starting from 0 When the button is released Counter 1 stops counting At that point the count values can both be read The total time the button is pressed in us is Counter 2 counts 65 536
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