DLP-IO14
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DLP-IO14 (pdf) |
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DLP-IO14 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 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 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 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. 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 Four settings of temperature measurement accuracy and speed are supported, as well as the ability read the permanent serial number of the sensor. 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 DLP Design, Inc. 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. USB DRIVERS USB drivers for the following operating systems are available for download from the DLP Design website: Windows 7 x64 Windows XP Windows XP x64 Windows Server 2003 Windows CE, 98, ME Windows Server 2008 x64 Windows Vista Mac OSX Mac OS8, OS9 Linux These drivers are available for download from the following pages and 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 . TERMINAL BLOCK PIN DEFINITIONS PIN NAME A1 A2 G |
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