DLP-IO14 Datasheet DLP-IO14 | P1-P3

Rev. 1.0 (June 2012) 1 © DLP Design, Inc.

LEAD FREE

USB-Based 14-Channel

Data-Acquisition Module

FEATURES:

• 14 IO’s: 0-5V Analog, Digital In/Out, Temperature

• Two Bipolar Analog Inputs; ±5V Input Range Max

• All Analog Inputs: Up to 30Ksps Sample Rate and Selectable Sample Size:

Rate: 200, 500, 1K, 2K, 4K, 10K, 20K, 30K, 40K, 50K Samples Per Second

Size: 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192 Samples (Binary Mode)

• SPDT Latching Relay

• Digital Temperature Sensor Feature Supported on 12 Digital I/O Lines

• Both Binary and ASCII (HyperTerminal) Modes Available

• Two 32-Bit Interrupt-Driven Event Counters; 5KHz Max Count Rate

• USB Port Powered

• USB 1.1- and 2.0-Compatible Interface

• Small Footprint; Easily Fits on a Desktop

• Easy-To-Use Programming Interface

APPLICATIONS:

• Robotics Control

• Motion Control/Presentation

• Data Acquisition

• Industrial/Process Control

• Process Monitoring

• Relay Control

• Audio Analysis

1.0 INTRODUCTION

The DLP-IO14 Data-Acquisition Module is a low-cost, easy-to-use data-acquisition system for analyzing

AC voltages, controlling and monitoring processes and measuring DC voltages in the range of both 0-5

volts and ±5 volts. This module provides topside wire terminal blocks for the wiring connections.

The 14 channels on the DLP-IO14 are broken down as follows: 12 digital I/O; all of which can also be

set to Analog Input Mode (0-5V). The DLP-IO14 also provides SPDT latching relay contacts. Each of

Rev. 1.0 (June 2012) 2 © DLP Design, Inc.

the channels and relay contacts can be controlled via simple single- and dual-byte commands. All

operational power is taken from the host PC via the USB port.

The mode of each I/O is automatically changed with each command sent. For example, if an I/O is set to

Digital Output-High and then the Digital Input Mode is selected; the I/O is first changed to Input Mode,

and then the high/low state is read and returned to the host.

2.0 SPECIFICATIONS

The DLP-IO14 is an all 5-volt system that derives its power from the host USB port. Channels have the

following capabilities:

Relay Contacts

: There is one set of SPDT relay contacts on the board. These contacts are latching and

are capable of handling loads of up to 2A. The relay has two sets of SPDT contacts that have been

connected in parallel to increase their current carrying capability. (These are detailed in Section 6 under

the table describing K1.)

Analog In

: Fourteen inputs can read and return the voltage on the analog inputs using a 10-bit ADC.

The maximum sample rate is 30Ksps. The input voltage range is 0-5 volts. (Refer to Section 8 of this

document for more details.) Two additional channels are dedicated to analog in only and can measure

voltages in the range of -5 volts to +5 volts.

Digital Output

: Set high or clear low; configurable as digital outputs (5V). (The actual high/low voltage

depends upon sink/source current.)

Digital Input

: Reads the input’s high/low state.

Temperature Measurement

: Up to 12 DS18B20+ temperature sensors can be connected to Channels 1

through 12. Four settings of temperature measurement accuracy and speed are supported, as well as

the ability read the permanent serial number of the sensor.

3.0 ABSOLUTE MAXIMUM RATINGS

Stresses beyond the ranges listed below may cause permanent damage to the DLP-IO14:

Operating Temperature

: 0-70°C

Voltage on Digital Inputs with Respect to Ground

: -0.3V to +5.3V

Voltage on Analog Inputs with Respect to Ground

: -0.3V to +5.3V

Voltage on Relay Contacts with Respect to Ground/Return

: 110VDC, 125VAC

Sink/Source Current on Any I/O

: 25mA

Sink/Source Current on All I/O Combined

: 90mA

Rev. 1.0 (June 2012) 3 © DLP Design, Inc.

4.0 WARNINGS

• Unplug from the host PC before connecting to the I/O terminals on the DLP-IO14.

• Isolate the bottom of the board from all conductive surfaces.

• Observe static precautions to prevent damage to the DLP-IO14 module.

5.0 USB DRIVERS

USB drivers for the following operating systems are available for download from the DLP Design website:

Windows 7 x64 Windows Server 2008 x64

Windows XP Windows Vista

Windows XP x64 Mac OSX

Windows Server 2003 Mac OS8, OS9

Windows CE, 98, ME Linux

These drivers are available for download from the following pages: http://www.dlpdesign.com

and

http://www.ftdichip.com/FTDrivers.htm

Note

: If you are utilizing the dual-mode drivers from FTDI (CDM2.x.x) and you want to use the Virtual

COM Port (VCP) drivers, then it may be necessary to disable the D2XX drivers first via Device Manager.

To do so, right click on the entry under USB Controllers that appears when the DLP-IO14 is connected,

select Properties, select the Advanced tab, put a check mark in the option for “Load VCP” and click OK.

Then unplug and replug the DLP-IO14, and a COM port should appear in Device Manager under Ports

(COM & LPT).

6.0 TERMINAL BLOCK PIN DEFINITIONS

TABLE 1

Terminal Block Pin Definitions

PIN NAME DESCRIPTION

Analog Input A1. Channel 13. Input voltage range is -5V to +5V.

Analog Input A2. Channel 14. Input voltage range is -5V to +5V.

Ground

Channel 1, Analog Input: Voltage range is 0 to +5V (see Note 1). Digital I/O:

Configurable as a digital input, a digital output (5V) or an open-drain output (5V max

pullup) (see Note 2).

Channel 2, Analog Input: Voltage range is 0 to +5V (see Note 1). Digital I/O:

Configurable as a digital input, a digital output (5V) or an open-drain output (5V max

pullup) (see Note 2).

32-bit Counter Input with a max countable frequency of 5KHz. Count increments

after toggling low then high.

Ground

Channel 3, Analog Input: Voltage range is 0 to +5V (see Note 1). Digital I/O:

Configurable as a digital input, a digital output (5V) or an open-drain output (5V max

pullup) (see Note 2). External Reference Input (see Command 0x2A for details).

P1-P3 P4-P6 P7-P9 P10-P12 P13-P13

DLP-IO14

Mfr. #:

Buy DLP-IO14

Manufacturer:

FTDI Chip

Description:

Interface Development Tools DLP Module

Lifecycle:

New from this manufacturer.

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