ADL Embedded Solutions USB-IDIO-16 User manual

MODELS
USB-IDIO-16
USB-IDO-16
USB-IDIO-8
ISOLATED DIGITAL
INPUT / FET OUTPUT
BOARDS
USER MANUAL
File: USB-IDIO-16.A1e
ADL Embedded Solutions Inc., 4411 Morena Blvd., Suite 101, San Diego, CA 92117-4345
P. [phone] F. [phone]
e-mail: [email protected]; web: www.adl-usa.com
Embedded Solutions

Manual USB-IDIO-16
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Notice
The information in this document is provided for reference only. ADL Embedded Solutions Inc.
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 ADL Embedded Solutions Inc., nor the rights of
others.
IBM PC, PC/XT, and PC/AT are registered trademarks of the International Business Machines Corporation.
Printed in USA. Copyright 2001, 2006 by ADL Embedded Solutions Inc., 4411 Morena Blvd. Suite 101, San
Diego, CA 92117. All rights reserved.
WARNING!!
ALWAYS CONNECT AND DISCONNECT YOUR FIELD CABLING WITH
THE COMPUTER POWER OFF. ALWAYS TURN COMPUTER POWER
OFF BEFORE INSTALLING A BOARD. CONNECTING AND
DISCONNECTING CABLES, OR INSTALLING BOARDS INTO A SYSTEM
WITH THE COMPUTER OR FIELD POWER ON MAY CAUSE DAMAGE
TO THE I/O BOARD AND WILL VOID ALL WARRANTIES, IMPLIED OR
EXPRESSED.

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TABLE OF CONTENTS
Chapter 1: Introduction ............................................................................................................................. 4
Features ........................................................................................................................................... 4
Applications...................................................................................................................................... 4
Inputs ............................................................................................................................................... 4
Outputs............................................................................................................................................. 4
Screw Terminal Accessory Board.................................................................................................... 5
USB Connector ................................................................................................................................ 5
LED .................................................................................................................................................. 5
Figure 1-1: Block Diagram ............................................................................................................... 5
Figure 1-2: Example of One Input Circuit ........................................................................................6
Figure 1-3: Example of One Output Circuit...................................................................................... 6
Ordering Guide................................................................................................................................. 6
Model Options .................................................................................................................................. 6
Accessories...................................................................................................................................... 6
Included with your board.................................................................................................................. 6
Chapter 2: Installation ................................................................................................................................7
Software CD Installation .................................................................................................................. 7
WIN98/Me/2000/XP/2003 ................................................................................................... 7
Hardware Installation ....................................................................................................................... 7
Chapter 3: Option Selection....................................................................................................................... 8
External Power................................................................................................................................. 8
Filter Response Jumpers ................................................................................................................. 8
Figure 3-1: Option Selection Map .................................................................................................... 9
Chapter 4: USB Address Information ..................................................................................................... 10
Chapter 5: Programming.......................................................................................................................... 11
Chapter 6: Connector Pin Assignments................................................................................................. 12
Figure 6-1: FET Output Pin Assignments (P3) .............................................................................. 12
Figure 6-2: Isolated Input Pin Assignments (P2) ........................................................................... 13
Figure 6-3: USB-STB-84 Screw Terminal Board ........................................................................... 14
Chapter 7: Specification........................................................................................................................... 15
Isolated Inputs................................................................................................................................ 15
Isolated FET Outputs ..................................................................................................................... 15
Power Required ............................................................................................................................. 15
Environmental ................................................................................................................................ 15
Customer Comments................................................................................................................................ 16

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Chapter 1: Introduction
This 32 channel optically isolated digital I/O board is an ideal solution for adding portable, easy-to-install
industrial grade I/O to any computer with a supported USB port. As a USB 2.0 high speed device it offers
the fastest speed currently available with the USB bus, while being fully compatible with both USB 1.1
and USB 2.0 ports. The card is plug-and-play allowing for quick connect/disconnect whenever you need
additional I/O on your computer.
Features
High Speed USB 2.0 device, USB 1.1 compatible
16 optically-isolated inputs
16 fully protected and isolated FET 2A outputs
Custom high-speed function driver
Internal, removable screw terminal board for easy wiring
Small (4" x 4" x 1.4") rugged industrial enclosure
PC/104 module size and mounting compatibility
Applications
These boards are especially useful in applications where high common-mode external voltages are
present. Isolation is required to guard electronics from transient voltage spikes and offers greater
common-mode noise rejection in electronically noisy surroundings containing industrial machinery and
inductive loads. These applications include factory automation, energy management, industrial ON/OFF
control, security systems, manufacturing test, and process monitoring. In addition to protecting industrial
applications from accidental contact with high external voltages, the isolation provided eliminates
troublesome ground loops.
Inputs
The board provides sixteen optically-isolated inputs. These inputs can accept either AC or DC signals
and are not polarity sensitive. Input signals are rectified by photocoupler diodes while unused power gets
dissipated through a 1.8k-ohm resistor in series. The inputs may be driven by either DC sources of 3 to
31 volts or AC (RMS) sources at frequencies of 40 Hz to 10 kHz. Standard 12/24 AC control transformer
outputs can be accepted as well. External resistors connected in series may be used to extend the input
voltage range, however this will raise the input threshold range. Consult with factory for available
modified input ranges.
Each input circuit contains a switchable filter that has a 4.7 millisecond time constant. (Without filtering,
the response is less than 40 microseconds.) The filter must be selected for AC inputs in order to
eliminate the on/off response to AC. The filter is also valuable for use with slow DC input signals in a
noisy environment. The filter may be switched out for DC inputs in order to obtain faster response.
Filters are individually selected by jumpers. The filters are switched into the circuit when the jumpers are
installed in position FLT0 to FLT15.
Outputs
The solid state outputs are comprised of sixteen fully protected and isolated FET outputs. The FET’s
have built in current limiting and are protected against short-circuit, over- temperature, ESD and inductive
load transients. The current limitation is activated until the thermal protection acts. The FET’s are all off
at power-on.

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Screw Terminal Accessory Board
A Screw Terminal Accessory board is included with the unit, except for the Economy (E) and OEM
versions. The board provides access to all I/O signals via removable screw terminals. Each removable
screw terminal carries 8 I/O signals, signal names are clearly marked on the accessory board’s silk
screen. The screw terminal board plugs directly onto the I/O board while fitting inside the rugged
industrial enclosure.
NOTE: Screw termination board is also designed for the USB-isolated input/relay output board.
For USB-isolated input/FET output board, please use “FET OUTPUTS” silk screen for cor-
rect pin designations.
USB Connector
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 can be powered from the USB port or, if
needed for higher current applications, an external power supply can be used.
LED
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 by the operating system. When the LED flashes
continuously, this signifies that there is data being transmitted over the USB bus.
Figure 1-1: Block Diagram

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Figure 1-2: Example of One Input Circuit
Figure 1-3: Example of One Output Circuit
Ordering Guide
USB-IDIO-16 Enclosure, module and screw terminal board
USB-IDO-16 16 isolated FET solid state outputs only version
USB-IDIO–8 8 isolated digital inputs and 8 isolated FET solid state outputs version
(uses ports 0-7 for inputs and outputs).
Model Options
-OEM Board only version (no enclosure and screw terminal board)
-E Economy model (no screw terminal board)
-DIN DIN rail mounting provision
-P External power and AC/DC adapter
Accessories
USB-STB-84 Internal plug in screw termination board
Included with your board
The following components are included with your shipment. Please take time now to ensure that no
items are damaged or missing.
1. USB-Isolated Input/FET Output Board (unit installed in labeled enclosure)
2. 6’ USB cable
3. Software Master CD (PDF user manual installed with product package)
4. Printed USB I/O Quick-Start Guide

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Chapter 2: Installation
Software CD Installation
These paragraphs are intended to detail the software installation steps.
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.
WIN98/Me/2000/XP/2003
a. Place the CD into your CD-ROM drive.
b. The CD should automatically run the install program. If the install program does not
click START | RUN and type GLQVWDOO, click OK or press ..
c. Follow the on-screen prompts to install the software for this board.
Hardware Installation
The board can be installed in any USB 2.0 or USB 1.1 port. Please refer to the USB I/O Quick Start
Guide which can be found on the CD, for specific, quick steps to complete the hardware and software
installation.

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Chapter 3: Option Selection
Refer to the setup programs 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.
External Power
This is an option for applications that use more current 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 9 VDC
AC/DC external power supply that ships with this option. The voltage regulator on board regulates the 9 VDC
and provides 5 VDC to the onboard circuitry. 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.
Filter Response Jumpers
Jumpers are used to select input filtering on a channel-by-channel basis. When jumper FLT0 is installed,
additional filtering is introduced for input bit 0, FLT1 for bit 1, etc.
JUMPER SELECTION Bit Filtered JUMPER SELECTION Bit Filtered
FLT-0
FLT-1
FLT-2
FLT-3
FLT-4
FLT-5
FLT-6
FLT-7
IN00
IN01
IN02
IN03
IN04
IN05
IN06
IN07
FLT-8
FLT-9
FLT-10
FLT-11
FLT-12
FLT-13
FLT-14
FLT-15
IN08
IN09
IN10
IN11
IN12
IN13
IN14
IN15
This additional filtering provides a slower response for DC signals as described previously and must be used
when AC inputs are applied.

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Figure 3-1: Option Selection Map

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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 “0x1605", and its PID is “0x8018".
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.

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Chapter 5: Programming
The driver software provided with the board uses a 32-bit .dll front end compatible with any Windows program-
ming language. Samples provided in Borland C++Builder, Borland Delphi, Microsoft Visual Basic, and Microsoft
Visual C++ demonstrate the use of the driver.
The following functions are provided by the driver in Windows.
These functions will allow you to read or write individual bits, bytes, or the entire board worth of data. In
addition, counter-timer functionality and board-level functions complete the driver package.
For detailed information on each function refer to the .html Driver Manual located in the Win32 directory for this
board.
unsigned long GetDevices(void )
unsigned long QueryDeviceInfo(DeviceIndex, pPID, pName, pDIOBytes, pCounters)
unsigned long DIO_Configure(DeviceIndex, bTristate, pOutMask, pData)
unsigned long DIO_Write1(DeviceIndex, BitIndex, bData)
unsigned long DIO_Write8(DeviceIndex, ByteIndex, Data)
unsigned long DIO_WriteAll(DeviceIndex,pData)
unsigned long DIO_Read8(DeviceIndex, ByteIndex,pBuffer)
unsigned long DIO_ReadAll(DeviceIndex,Buffer)

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Chapter 6: Connector Pin Assignments
FET outputs are connected to the board via a 50-pin HEADER type connector named P3. The mating
connector is an IDC type with 0.1 inch centers or equivalent. Normally, a screw terminal accessory (USB-STB-
84) is included and installed directly on to the board headers. Pin assignments follow.
PIN NAME FUNCTION
1OUT15+ Bit 15 Switched (Supply Voltage) Output
2OUT15VBB Bit 15 FET Supply Voltage
3OUT15- Bit 15 Power Supply Return (or Ground)
4OUT14+ Bit 14 Switched (Supply Voltage) Output
5OUT14VBB Bit FET Supply Voltage
6OUT14- Bit 14 Power Supply Return (or Ground)
7OUT13+ Bit 13 Switched (Supply Voltage) Output
8OUT13VBB Bit 13 FET Supply Voltage
9OUT13- Bit 13 Power Supply Return (or Ground)
10 OUT12+ Bit 12 Switched (Supply Voltage) Output
11 OUT12VBB Bit 12 FET Supply Voltage
12 OUT12- Bit 12 Power Supply Return (or Ground)
13 OUT11+ Bit 11 Switched (Supply Voltage) Output
14 OUT11VBB Bit 11 FET Supply Voltage
15 OUT11- Bit 11 Power Supply Return (or Ground)
16 OUT10+ Bit 10 Switched (Supply Voltage) Output
17 OUT10VBB Bit 10 FET Supply Voltage
18 OUT10- Bit 10 Power Supply Return (or Ground)
19 OUT09+ Bit 09 Switched (Supply Voltage) Output
20 OUT09VBB Bit 09 FET Supply Voltage
21 OUT09- Bit 09 Power Supply Return (or Ground)
22 OUT08+ Bit 08 Switched (Supply Voltage) Output
23 OUT08VBB Bit 08 FET Supply Voltage
24 OUT08- Bit 08 Power Supply Return (or Ground)
25
26
27 OUT07- Bit 07 Power Supply Return (or Ground)
28 OUT07VBB Bit 07 FET Supply Voltage
29 OUT07+ Bit 07 Switched (Supply Voltage) Output
30 OUT06- Bit 06 Power Supply Return (or Ground)
31 OUT06VBB Bit 06 FET Supply Voltage
32 OUT06+ Bit 06 Switched (Supply Voltage) Output
33 OUT05- Bit 05 Power Supply Return (or Ground)
34 OUT05VBB Bit 05 FET Supply Voltage
35 OUT05+ Bit 05 Switched (Supply Voltage) Output
36 OUT04- Bit 04 Power Supply Return (or Ground)
37 OUT04VBB Bit 04 FET Supply Voltage
38 OUT04+ Bit 04 Switched (Supply Voltage) Output
39 OUT03- Bit 03 Power Supply Return (or Ground)
40 OUT03VBB Bit 03 FET Supply Voltage
41 OUT03+ Bit 03 Switched (Supply Voltage) Output
42 OUT02- Bit 02 Power Supply Return (or Ground)
43 OUT02VBB Bit 02 FET Supply Voltage
44 OUT02+ Bit 02 Switched (Supply Voltage) Output
45 OUT01- Bit 01 Power Supply Return (or Ground)
46 OUT01VBB Bit 01 FET Supply Voltage
47 OUT01+ Bit 01 Switched (Supply Voltage) Output
48 OUT00- Bit 00 Power Supply Return (or Ground)
49 OUT00VBB Bit 00 FET Supply Voltage
50 OUT00+ Bit 00 Switched (Supply Voltage) Output
Figure 6-1: FET Output Pin Assignments (P3)

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Isolated Inputs are connected to the board via a 34-pin HEADER type connector named P2. The mating
connector is an IDC type with 0.1 inch centers or equivalent.
PIN NAME FUNCTION
1 IN00 A Isolated Input 00 A
2 IN00 B Isolated Input 00 B
3 IN01 A Isolated Input 01 A
4 IN01 B Isolated Input 01 B
5 IN02 A Isolated Input 02 A
6 IN02 B Isolated Input 02 B
7 IN03 A Isolated Input 03 A
8 IN03 B Isolated Input 03 B
9 IN04 A Isolated Input 04 A
10 IN04 B Isolated Input 04 B
11 IN05 A Isolated Input 05 A
12 IN05 B Isolated Input 05 B
13 IN06 A Isolated Input 06 A
14 IN06 B Isolated Input 06 B
15 IN07 A Isolated Input 07 A
16 IN07 B Isolated Input 07 B
17
18
19 IN08 A Isolated Input 08 A
20 IN08 B Isolated Input 08 B
21 IN09 A Isolated Input 09 A
22 IN09 B Isolated Input 09 B
23 IN10 A Isolated Input 10 A
24 IN10 B Isolated Input 10 B
25 IN11 A Isolated Input 11 A
26 IN11 B Isolated Input 11 B
27 IN12 A Isolated Input 12 A
28 IN12 B Isolated Input 12 B
29 IN13 A Isolated Input 13 A
30 IN13 B Isolated Input 13 B
31 IN14 A Isolated Input 14 A
32 IN14 B Isolated Input 14 B
33 IN15 A Isolated Input 15 A
34 IN15 B Isolated Input 15 B
Figure 6-2: Isolated Input Pin Assignments (P2)

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Figure 6-3: USB-STB-84 Screw Terminal Board

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Chapter 7: Specification
Isolated Inputs
Number of inputs: Sixteen
Type: Non-polarized, optically isolated from each other and from the computer
Voltage Range: 3 to 31 DC or AC RMS (40 Hz to 10 kHz) (CMOS compatible)
Isolation: 500V*(see note) channel-to-ground or channel-to channel
Input Resistance: 1.8K ohms in series with opto coupler
Filter Response: Rise Time = 4.7 mS / Fall Time = 4.7 mS
Non-Filter Response: Rise Time = 10 uS / Fall Time = 30 uS
Isolated FET Outputs
Number of outputs: Sixteen Solid State FET’s (off @ power up)
Output Type: High Side Power MOSFET Switch. Protected against short circuit, over-
temperature, ESD, can drive inductive loads.
Voltage Range: 5-34VDC recommended (customer supplied) for continuous use, 40VDC
absolute maximum
Current Rating: 2A maximum
Turn-on time: 90 uS (typical)
Turn-off time: 110 uS (typical)
Power Required
5V @ 35mA typical (all FETs off, add 5mA per FET)
5V @ 115mA typical (all FETs on)
5VDC provided via USB cable up to 500mA**
**optional external power supply can be ordered if desired if current use of the board is expected to be greater
than what can be supplied by the USB cable.
Environmental
Operating Temp: 0 - 70 oC (Non-icing)
*Notes on Isolation: Opto-Isolators and connectors are rated for at least 500V, but isolation voltage breakdowns
will vary and is affected by factors like cabling, spacing of pins, spacing between traces on the PCB, humidity,
dust and other environmental factors. This is a safety issue so a careful approach is required. For CE
certification on the front end of the circuitry, isolation was specified at 40V AC and 60V DC. The design
intention was to eliminate the influence of common mode. Use proper wiring techniques to minimize voltage
between channels and to ground. For example, when working with AC voltages do not connect the hot side of
the line to an input. Tolerance of higher isolation voltage can be obtained on request by applying a conformal
coating to the board.

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Customer Comments
If you experience any problems with this manual or just want to give us some feedback, please email us at:
[email protected]om. Please detail any errors you find and include your mailing address so that we can send
you any manual updates.
Embedded Solutions
ADL Embedded Solutions Inc., 4411 Morena Blvd., Suite 101, San Diego, CA 92117-4345
P. [phone] F. [phone]
e-mail: [email protected]; web: www.adl-usa.com