USB-DIO24-CTR6 User Manual
Contents
1. 2 a a et 11 T 11 EIU 11 Hardware orate Du vt deus dus eee 11 Chapter 3 Hardware 12 O 12 Figure 3 1 Option Selection pes odes iesu dues ones 12 Figure 3 2 UTBK 50 Dimensional 12 MIX 13 DC Power Jack a REN SUN RERUM 13 50 Pin BOX 13 Pull Up Pull Down Configuration Jumpers 13 13 Chapter 4 USB Address 22 2 2 14 Chanter 5 Programming 15 Chapter 6 Connector Pin Assignments 16 Table 6 1 50 Pin Connector Pin 16 Chapter 7 Specification S ooo oua d E oou 17 Table 7 1 Vceclo 0 LEVES 17 Appendix A 8254 Gounter TImer oriri iet Iter tia emi eee 18 Customer Comments M UE Ere m mnn sa UM s D 20 4 Manual USB DIO24 CTHR6 Chapter 1 Introduction Features 24 lines of digital I O High spe2. Made in the U S A WWW aCcCes IO USB DIO 24 Enclosure Label Figure 1 3 Manual USB DIO24 CTR6 10 Chapter 2 Installation A printed Quick Start Guide 050 is packed with the board for your convenience If you ve already performed the steps from the QSG you may find this chapter to be redundant and may skip forward to begin developing your application Software CD Installation The software provided with this board is contained on one CD and must be installed onto your hard disk prior to use To do this perform the following steps as appropriate for your operating system Substitute the appropriate drive letter for your drive where you see D in the examples below Windows a Place the CD into your CD ROM drive b The install program automatically run If the install program does not run click START RUN and type gt click OK or press Exel c Follow the on screen prompts to install the software for this board Linux a Please refer to linux htm on the CD for information on installing under Linux Hardware Installation Please install the software package before plugging the hardware into the system Refer to the printed I O Quick Start Guide included with your board which can also be found on the CD for specific quick steps to complete the hardware and software installation Caution ESD A single static discharge can damage your card and cause premature failure Please follow all reasonable precaution
3. Windows compatible wrapper library In Windows the AIOUSB DLL available in both 32 bit and 64 bit versions provides a wide variety of functions for your use The following functions represent those most commonly used for this device For more details consult the USB Software Reference Manual pdf or the linux doc trees as appropriate unsigned long DIO Configure Devicelndex bTristate pOutMask pData unsigned long DIO WriteAll Devicelndex pData unsigned long DIO ReadAll Devicelndex Buffer unsigned long 8254ModeLoad Devicelndex BlockIndex Mode LoadValue unsigned long 8254Read Devicelndex Counterlndex pReadValue 15 Manual USB DIO24 CTHR6 Chapter 6 Connector Pin Assignments A 50 pin male header connector protrudes through a cutout the enclosure for I O connections Connector pin assignments are listed below IDC 50 Pin Header Male 49 QOOOO0O00000000000000000000 50 1 3 PC6 5 PC4 PC3 11 PC2 13 PC1 15 PCO 17 PB7 19 PB6 21 PB5 23 PB4 25 PB3 27 PB2 29 1 31 PBO 33 PA7 35 6 37 PA5 MODEL USB DIO24 CTR6 2 IPCOCLK 4 IPCOGATE OPCOOUT GROUND 10 12 14 OPC1OUT 16 GROUND 18 IPC2CLK 20 IPC2GATE 22 2 24 GROUND 26 IPCSCLK 28 IPC3GATE 30 O
4. after N counts reloads the initial count and the cycle starts over This mode is periodic the same sequence is repeated indefinitely until the gate input is brought low This mode also works well as an alternative to mode 0 for event counting 18 Manual USB DIO24 CTHR6 Mode 3 Square Wave Generator This mode operates like mode 2 The output is high for half of the count and low for the other half If the count is even then the output is a symmetrical square wave If the count is odd then the output is high for 1 2 counts and low for N 1 2 counts Periodic triggering or frequency synthesis are two possible applications for this mode Note that in this mode to achieve the square wave the counter decrements by two for the total loaded count then reloads and decrements by two for the second part of the wave form Mode 4 Software Triggered Strobe This mode sets the output high and when the count is loaded the counter begins to count down When the counter reaches zero the output will go low for one input period The counter must be reloaded to repeat the cycle A low gate input will inhibit the counter Mode 5 Hardware Triggered Strobe In this mode the counter will start counting after the rising edge of the trigger input and will go low for one clock period when the terminal count is reached The counter is retriggerable The output will not go low until the full count after the rising edge of the trigger 19 Manual USB DIO24 C
5. by ACCES which is found to be defective will be repaired or replaced subject to the following considerations Terms and Conditions If a unit is suspected of failure contact ACCES Customer Service department Be prepared to give the unit model number serial number and a description of the failure symptom s We may suggest some simple tests to confirm the failure We will assign a Return Material Authorization RMA number which must appear on the outer label of the return package All units components should be properly packed for handling and returned with freight prepaid to the ACCES designated Service Center and will be returned to the customer s user s site freight prepaid and invoiced Coverage First Three Years Returned unit part will be repaired and or replaced at ACCES option with no charge for labor or parts not excluded by warranty Warranty commences with equipment shipment Following Years Throughout your equipments lifetime ACCES stands ready to provide on site or in plant service at reasonable rates similar to those of other manufacturers in the industry Equipment Not Manufactured by ACCES Equipment provided but not manufactured by ACCES is warranted and will be repaired according to the terms and conditions of the respective equipment manufacturer s warranty General Under this Warranty liability of ACCES is limited to replacing repairing or issuing credit at ACCES discretion for any products which are proved to be def
6. over However due to the 10K resistor packs any un used input will not have suppressed cross talk For pull ups most common install these jumpers in the PULLUP position For pull downs install these jumpers in the PULLDOWN position For neither remove these jumpers The board ships from the factory with all ports configured with pull ups There are two Vccio levels available on this board They are 5V CMOS and 3 3V LVTTL Vccio applies to all DIO counter timer and external control signals on the connector Install the jumper in the desired Vccio position The board ships from the factory configured for 5V CMOS operation 13 Manual USB DIO24 CTHR6 Chapter 4 USB Address Information Use the provided driver to access the USB board This driver will allow you to determine how many supported USB devices are currently installed and each device s type This information is returned as a Vendor ID VID Product ID PID and Device Index The board s VID is Ox1605 The PID for the USB DIO24 CTR6 is 0x8006 The PID for the USB DIO 24 is 0x8005 The Device Index is determined by how many of the device you have in your system and provides a unique identifier allowing you to access a specific board at will 14 Manual USB DIO24 CTHR6 Chapter 5 Programming The onboard firmware of the device can be controlled directly using any USB compatible operating system driver such as VISA or libusb but we provide a convenient linux and
7. use optional 5 VDC external power supply and remove VUSB jumper and place jumper on VEXT Then plug in external power before plugging into USB port This option will give you a total of 1000mA available Vccio resettable fuse at 0 5A located near the connector Environmental Operating Temp to 70 A0 C to 85 as a factory option Storage Temp 40 C to 85 Humidity 5 to 90 RH non condensing Board Dimension 3 550 x 3 775 inches Box Dimension 4 00 x 4 00 x 1 25 inches 17 Manual USB DIO24 CTHR6 Appendix 8254 Counter Timer These boards ship standard with two 82654 counter s that each include three 16 bit counter timers Each counter can be programmed to any count as low as 1 or 2 and up to 65 536 depending on the mode chosen For those interested in more detailed information a full description can be found in the Intel or equivalent manufacturer s data sheet provided in the chipdocs directory on the Software Master CD Refer to Chapter 5 Programming and the html Driver Manual document installed by the ooftware Master CD for information on using the installed software driver for this board The following data is provided only for reference as it is unlikely to be needed when using the provided driver Please note the block diagram description of how the 9 pins associated with 8254 counters are all independently brought to the connector on this board Operational Modes The 8254 m
8. 011436 E lt gt I O PRODUCTS INC 10623 Roselle Street E n Diego CA 92121 858 550 9559 FAX 858 550 7322 ntactus accesio com www accesio com MODEL USB DIO24 CTR6 and MODEL USB DIO 24 24 Channel Digital I O Module with two 82C54 Counter Timer Chips USER MANUAL FILE MUSB DIO24 CTR6 A1d Notice The information in this document is provided for reference only ACCES does not assume any liability arising out of the application or use of the information or products described herein This document may contain or reference information and products protected by copyrights or patents and does not convey any license under the patent rights of ACCES nor the rights of others Printed in USA Copyright by ACCES Products Inc 10623 Roselle Street San Diego CA 92121 1506 All rights reserved WARNING ALWAYS CONNECT AND DISCONNECT YOUR FIELD CABLING WITH THE COMPUTER POWER OFF ALWAYS TURN COMPUTER POWER OFF BEFORE INSTALLING A CARD CONNECTING AND DISCONNECTING CABLES OR INSTALLING CARDS INTO A SYSTEM WITH THE COMPUTER OR FIELD POWER ON MAY CAUSE DAMAGE TO THE I O CARD AND WILL VOID ALL WARRANTIES IMPLIED OR EXPRESSED 2 Manual USB DIO24 CTHR6 Warranty Prior to shipment ACCES equipment is thoroughly inspected and tested to applicable specifications However should equipment failure occur ACCES assures its customers that prompt service and support will be available All equipment originally manufactured
9. PC3OUT 32 GROUND 34 IPCACLK 36 IPCAGATE 38 40 GROUND 42 IPCSCLK 44 IPCSGATE GROUND 10MHz Clock 2 MODEL USB DIO 24 2 N C N C GROUND 10 N C 12 N C 14 N C 16 GROUND 18 N C 20 N 22 N 24 GROUND 26 N 28 N C 30 N C 32 GROUND 34 N C 36 N C 38 C 40 GROUND 42 N C 44 N C Z lt olo Table 6 1 50 Pin Connector Pin Assignments 16 Manual USB DIO24 CTR6 Chapter 7 Specifications Digital I O Channels Groups 24 in two 8 bit and two 4 bit groups Type 8255 Mode 0 compatible Logic Level Vccio Pull up down 10kO jumper selectable Vccio Voltage levels Jumper selectable for 5V or 3 3V Logic Levels 5V CMOS 3 3V LVTTL Low Inputs A lt 0 55V lt 0 55V High Outputs gt 3 8 2 gt 24V 24mA Table 7 1 Vccio Logic Levels Counter Timers Number Type Two 82C54 programmable interval counters Counter size 16 bit Logic level Vccio On board clock 10MHz Clock Pulse Width High 30ns min Low 405 min Bus Type USB2 0 high speed 480 Mb s USB3 0 and USB1 1 compatible Power Basic unit 140 mA typical no load 5 VDC from the USB bus or external power supply depending on user configuration The USB bus is specified to provide 500 mA in most desktop environments This gives you 360 mA available 500mA 140mA 360 If using more than total of 500mA
10. THR6 Customer Comments If you experience any problems with this manual or just want to give us some feedback please email us at manuals accesio com Please detail any errors you find and include your mailing address so that we can send you any manual updates ACCES I O PRODUCTS INC ya 10623 Roselle Street San Diego CA 92121 Tel 858 550 9559 FAX 858 550 7322 WWW accesio com 20 Manual USB DIO24 CTHR6
11. ective during the warranty period In no case is ACCES liable for consequential or special damage arriving from use or misuse of our product The customer is responsible for all charges caused by modifications or additions to ACCES equipment not approved in writing by ACCES or if in ACCES opinion the equipment has been subjected to abnormal use Abnormal use for purposes of this warranty is defined as any use to which the equipment is exposed other than that use specified or intended as evidenced by purchase or sales representation Other than the above no other warranty expressed or implied shall apply to any and all such equipment furnished or sold by ACCES 3 Manual USB DIO24 CTHR6 Table of Contents Chapter T Introduclion 5 FedllI65 uci 5 5 6 COUnDIGE 6 Figure 1 1 BIOCK Dagia 7 8 MOJGIODUOLDS te uM Edd 8 21815741 Orde T 8 Customization and Special 2 2 8 WITH your C MSM 8 Table 1 1 Optional 9 Figure 1 2 USB DIO24 CTR6 Enclosure 10 Figure 1 3 USB DIO 24 Enclosure 10 Cha pier 11 Software CD Installation 2
12. ed USB 2 0 device USB 3 0 and 1 1 compatible Two 8 bit ports and two 4 bit ports each software configurable for input or output Field selectable CMOS 5 or LVTTL 3 3V Vccio signal levels CMOS All 24 1 0 lines buffered with 32 mA sink and source LVTTL All 24 I O lines buffered with 24 mA sink and source Two 82C54 counters with all pins available at I O connector Each port field configurable as pull up pull down or no bias Powered via USB cable optional external power supply for sourcing higher total current Vccio at connector for general purpose use protected by polyfuse Standard 50 pin male IDC header compatible with Industry Standard I O Racks such as Gordos OPTO22 Potter amp Brumfield PC 104 size 3 550 by 3 775 inches e Rugged steel industrial enclosure 4 by 4 by 1 25 inches Applications e Automatic Test Systems e Laboratory Automation e Robotics e Machine Control e Security Systems Energy Management e Relay Monitoring and Control e Parallel Data Transfer to PC Sensing Switch Closures or DTL LVTTL and CMOS Logic e Driving Indicator Lights or Recorders 5 Manual USB DIO24 CTHR6 Functional Description This USB board is an ideal solution for adding portable easy to install digital and counter capabilities to any computer with a USB port The board is a USB 2 0 high speed device and is fully compatible with USB 3 0 and USB 1 1 ports The card is plug and play allowing quick connect disconnect wheneve
13. mally suited for use with industry standard solid state module mounting racks Because this version does not place any counter signals on pins normally reserved for Ground it provides a perfectly compatible 50 pin IDC connection Unlike most USB digital products which primarily use a human interface device HID driver we provide an easy to use Windows based custom function driver optimized for maximum data throughput This approach exposes the full functionality of the hardware along with maximizing the advantage of using the high speed USB 2 0 bus and allows your application software to achieve up to 4000 transactions per second compared to 50 or 100 per second typical when using HID drivers The board is designed to be used in rugged industrial environments but is small enough to fit nicely onto any desk or testing station The board is PC 104 size 3 550 by 3 775 inches and ships inside a steel powder coated enclosure with an anti skid bottom 4 by 4 by 1 25 inches Counter Timers On the board are two 82C54 counter chips that each include three 16 bit counter timers with each input output and gate signal buffered pulled up and brought to the connector They can be connected for use as event counters frequency output pulse width and frequency measurement 6 Manual USB DIO24 CTHR6 LVTTL CMOS Vccio Select Jumper DIRECTION SELECT BITS sy 15 1 8 BIT DIGITAL INTERFACE PORT UG EEER 8 wi
14. odes of operation are described in the following paragraphs to familiarize you with the versatility and power of this device For those interested in more detailed information a full description of the 8254 programmable interval timer can be found in the Intel or equivalent manufacturers data sheets The following conventions apply for use in describing operation of the 8254 Clock A positive pulse into the counter s clock input Trigger A rising edge input to the counter s gate input Counter Loading Programming a binary count into the counter Mode 0 Pulse on Terminal Count After the counter is loaded the output is set low and will remain low until the counter decrements to zero The output then goes high and remains high until a new count is loaded into the counter A trigger enables the counter to start decrementing Mode 1 Retriggerable One Shot The output goes low on the clock pulse following a trigger to begin the one shot pulse and goes high when the counter reaches zero Additional triggers result in reloading the count and starting the cycle over If a trigger occurs before the counter decrements to zero a new count is loaded This forms a retriggerable one shot In mode 1 a low output pulse is provided with a period equal to the counter count down time Mode 2 Rate Generator This mode provides a divide by N capability where N is the count loaded into the counter When triggered the counter output goes low for one clock period
15. r you need additional I O on your USB port The board features 24 bits of CMOS LVTTL compatible digital I O with high current capabilities and two 82C54 counter timers Each digital port can be programmed to accept inputs or to drive outputs Groups of two 8 bit ports and two 4 bit ports are designated as port A B CHi and CLo Power is supplied to the card via the USB cable For higher current sourcing capabilities external power may be used The wiring connections are via an industry standard 50 pin male connector and a variety of optional terminal block adapter cards For external circuits fused 5 or 3 3V DC power is available on pin 49 of the connector The resettable fuse is rated at 0 5A All 24 1 0 lines are buffered by a type 74L VC8T2495 tristate buffer transceiver capable of operating in CMOS 45V or LVTTL 3 3V modes The mode is set for all pins simultaneously via an onboard jumper When using CMOS mode the outputs can sink or source 32 mA In LVTTL mode the outputs can sink or source 24mA The 24 bits are divided into four ports two 8 bit ports Port A Port B and two 4 bit ports Port CLo Port CHi Each port can be configured independently via onboard jumpers for pull up pull down or no bias Each port can also be configured independently via software command for use as inputs or outputs The board is available in two models one with two 8254 counter timer chips and one without The unit without counters is opti
16. s to prevent a static discharge such as grounding yourself by touching any grounded surface prior to touching the card 11 Manual USB DIO24 CTHR6 Chapter 3 Hardware Details Option Selections Refer to the settings program on the CD provided with the board Also refer to the Block Diagram and the Option Selection Map when reading this section of the manual CMOS LVTTL Vccio GND PULLDOWN Vccio Select PULLUP VUSB POWER FROM USB USB DIO24 CTR6 ONLY Hon T z 0 20 Figure 3 1 Option Selection 3 580 3 LCS CAE 4 124 1 70 50 FEMALE IDC 2 725 _ Figure 3 2 UTBK 50 Dimensional Drawing 12 Manual USB DIO24 CTHR6 USB Connector LED The USB connector is a Type B connector and mates with the cable provided The USB port provides communication signals along with 5 VDC power The board be powered from the USB port or if needed for higher current applications an external power supply can be used The LED on the front of the enclosure is used to indicate power and data transmissions When the LED is in an illuminated steady green state this signifies that the board is successfully connected to the computer and has been detected and configured b
17. sories 9 Manual USB DIO24 CTHR6 A Cz Cz gt aauaMod 2 fii 2 5V OPTIONAL 0 PRODUCTS INC USB DIO2 4 CTR6 24 Bits of Digital with two 82C54 chips N FUNCTION PIN FUNCTION 1 DIO C7 3 DIO C6 5 DIO C5 4 DIO C3 11 DIO C2 13 DIO C1 15 DIO CO 17 DIO B7 19 DIO B6 21 DIO B5 23 DIO B4 25 DIO B3 27 DIO B2 29 DIO B1 31 DIO BO 33 DIO A7 35 DIO A6 37 DIO A5 39 DIO A4 41 DIO A3 43 DIO A2 45 DIO A1 47 DIO 0 49 VCCIO 2 COCLK 4 COGATE 6 CO OUT 8 GND 10 C1 CLK 12 C1 GATE 14 C1 OUT 16 GND 18 C2 CLK 20 C2 GATE 22 C2 OUT 24 GND 26 C3 CLK 28 C3 GATE 30 C3 OUT 32 GND 34 C4 CLK 36 C4 GATE 38 C4 OUT 40 GND 42 C5 CLK 44 C5 GATE 46 C5 OUT 48 GND 50 10MHz U S A Mlade in the WWW aSCCeS USB DIO24 CTHR6 Enclosure Label Figure 1 2 ACTIVITY Loo PRODUCTS INC USB DIO 2 41 24 Bits of Digital FUNCTION DIO C7 DIO C6 DIO C5 DIO C4 DIO C3 DIO C2 13 DIO C1 15 DIO CO 17 DIO B7 19 DIO B6 21 DIO B5 23 DIO B4 25 DIO B3 27 DIO B2 29 DIO B1 31 DIO BO 33 DIO A7 35 DIO A6 37 DIO A5 39 DIO A4 41 DIO A3 43 DIO A2 45 DIO A1 47 DIO 0 49 5V PIN FUNCTION 2 4 6 N C 8 GND 10 N C 12 N C 14 N C 16 GND 18 N C 20 N C 22 N C 24 GND 26 N C 28 N C 30 N C 32 GND 34 N C 36 N C 38 N C 40 GND 42 N C 44 46 N C 48 GND 50 N C
18. th En DIGITAL n 2 JO PORT BUFFER Y 4 BIT DIGITAL BUFFER PN CONTROLLER PORT 1 d SER 4 BIT DIGITAL PORT I O BUFFER x 2 2 gt c I LLI e Wm o E E fT so ssl P 35 9 O lt Es lt 6 o rk LJ 8 amp 8 OUE 22 LIE 88 16 Bit 221 NEN cma 87 19 FT 1 10 MHz Model USB DIO24 CTR6 Figure 1 1 Block Diagram 7 Manual USB DIO24 CTHR6 Ordering Guide USB DIO24 CTR6 USB 24 channel digital input output module with two 82C54 s USB DIO 24 USB 24 channel digital input output module For use with solid state module mounting racks order model USB DIO 24 PR and consider adding a cable model CAB50 xx where xx is length in feet Model Options PR Ext regulated 5V power and AC DC adapter ST External power connection via screw terminals Board only no enclosure or terminal board RoHS Compliant board T Extended operating temp 40 C to 85 C Special Order 50 Contact factory with your special requirement Examples of special orders would be conformal coating latching headers and or single 8254 installed etc Customization and Special Functions Due to the nature of our USB modules many special functions can be implemented with a combination of custom firmware and an associated DLL entry point for little to no NRE Functions such as q
19. uadrature input pulse width modulated outputs even input de bouncing Call us to discuss your requirement Included with your board The following components are included with your shipment depending on options ordered Please take the time now to ensure that no items are damaged or missing USB Module in labeled enclosure with an anti skid bottom 6 USB 2 0 cable Software Master CD USB Quick Start Guide 8 Manual USB DIO24 CTHR6 oix foot ribbon cable assembly with 50 pin female connectors oix foot ribbon cable assembly with a 50 female header connector CAB50 6 and a 50 pin female edge connector perfect for use with industry standard solid state module mounting racks 18 24 Adds 24 channels of optically isolated Inputs Direct connect universal 50 pin removable screw terminal board ocrew terminal board typically ships e SIB 50 with standoffs but can also mount on SNAP TRACK or DIN SNAP opring cage terminal board with PC 104 compatible mounting mounts enclosure of USB module and includes short ribbon cable oix inch length of SNAP TRACK with DIN SNAP 6 two clips for mounting one STB 50 screw terminal board on a DIN rail One foot length of SNAP TRACK with DIN SNAP four clips for mounting up to two STB 50 screw terminal boards on a DIN rail DIN rail mounting adapter plate for e MP104 DIN affixing any USB 104 module to a DIN rail Table 1 1 Optional Acces
20. y the operating system When the LED flashes continuously this signifies that there is data being transmitted over the USB bus DC Power Jack Optional This is an option for high current applications when more current is needed than what your computer can provide on the USB port typically 500 mA The DC jack has a 2 00mm post on board and is designed to be used with the regulated 5VDC AC DC external power supply that ships with this option When using external power switch the jumper located near the USB connector to VEXT otherwise when the jumper is in the VUSB position current is drawn from the USB port please consult the option selection map for a visual reference 50 Pin Box Header The 50 pin box header has standard 0 100 spacing between pins and is keyed to prevent improper connections It can be used with standard IDC type ribbon cables or optionally available screw terminal boards some of which plug directly into the box header Pull Up Pull Down Configuration Jumpers Vccio The 24 bits are divided into four ports two 8 bit ports Port A Port B and two 4 bit ports Port CLo Port CHi Each port can be configured independently via onboard jumpers for pull up or pull down via 10Kohm resistor packs or no bias by removing the jumper Pull ups are very common for dry contact monitoring while pull downs prevent the activation of external inputs and devices during the power up and reset sequences before software can take
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