DLP-IOR4 LEAD-FREE USB-BASED LATCHING RELAY MODULE Applications: Features: - Data-Acquisition Control - 4 Latching Relays - USB Port Powered - Industrial/Process Control - USB 1.1 and 2.0 Compatible Interface - Home Automation - Small Footprint: 4.1 x 0.96 Inch PCB - Robotics - Easy to Use with Single-Byte Commands; Can Utilize a Simple Terminal Emulator to Control All Functions 1.0 INTRODUCTION The DLP-IOR4 is a low-cost, easy-to-use relay module utilized for computer control of electrical or electronic equipment. Note: The relays used on the DLP-IOR4 are latching type relays. As such, the state of the relay will not change when power is removed from the module. All operational power is taken from the host PC via the USB port. 2.0 SPECIFICATIONS Each of the four relays on the DLP-IOR4 has the following specifications: • • • • Contact Ratings: 60W, 125VA Max Switching Voltage: 220VDC, 250 VAC Max Switching Current: 2A Max Carrying Current: 2A Note: The two sets of contacts for each relay are connected in parallel. Rev. 1.1 (September 2007) 1 © DLP Design, Inc. 3.0 ABSOLUTE MAXIMUM RATINGS Stresses above those listed here may cause permanent damage to the DLP-IOR4: • • Operating Temperature: 0-70°C Current on Any I/O Pin: 2A 4.0 WARNINGS • Unplug from the host PC before connecting to the DLP-IOR4. • Observe static precautions to prevent damage to the DLP-IOR4 module. 5.0 USB DRIVERS USB drivers for the following operating systems are available for download from the DLP Design website (http://www.dlpdesign.com): Windows XP x64 Windows Server 2003 Windows 2000 Windows 98, ME Mac OSX Mac OS9 Mac OS8 Linux Note: If you are using the dual-mode drivers from FTDI (CDM2.02.04) and wish to use the Virtual COM Port (VCP) mode, 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-IOR4 is connected, select Properties, select the Advanced tab, check the option for Load VCP and click OK. Once you unplug and then replug the DLP-IOR4 module, a COM port should appear in Device Manager under Ports (COM & LPT). 6.0 USING THE DLP-IOR4 Simply connect the DLP-IOR4 to the PC to initiate the loading of drivers. Once the drivers are loaded, the DLP-IOR4 is ready for use. All commands are single-byte commands. Please note that the Ping command is the only command that results in data being returned to the host from the DLP-IOR4. You can either utilize a simple terminal emulator program or write your own program using your language of choice. Begin by opening the COM port, set the Baud Rate to 9600 (1 start bit, no parity, 8 data bits, 1 stop bit, no flow control), and send single-byte commands as shown in Table 1. The Ping command can be used to locate the correct COM port used for communicating with the DLPIOR4, or you can look in Device Manager to see which port Windows has assigned to the DLP-IOR4. A Rev. 1.1 (September 2007) 1 B A 2 B 2 A 3 B A 4 B © DLP Design, Inc. TABLE 1 Relay 1 Commands ASCII Character 1 Q Hex Value 0x31 0x51 Description Connect common terminal ‘1’ to ‘A’ Connect common terminal ‘1’ to ‘B’ Return / Comments Relay 2 Commands 2 W 0x32 0x57 Connect common terminal ‘2’ to ‘A’ Connect common terminal ‘2’ to ‘B’ Relay 3 Commands 3 E 0x33 0x45 Connect common terminal ‘3’ to ‘A’ Connect common terminal ‘3’ to ‘B’ Relay 4 Commands 4 R 0x34 0x52 Connect common terminal ‘4’ to ‘A’ Connect common terminal ‘4’ to ‘B’ Ping Command ‘ 0x27 Issue Ping (the Apostrophe character just to the right of the ; key) R (0x52) will be returned if the DLP-IOR4 is found on the selected port. 7.0 MECHANICAL DIMENSIONS IN INCHES (MM) (PRELIMINARY) 4.1 typ (104 typ) .96 typ (24.4 typ) A 1 B A 2 B A 3 B A 4 B 75.0 typ (1.9m typ) Rev. 1.1 (September 2007) 3 © DLP Design, Inc. 8.0 DISCLAIMER © DLP Design, Inc., 2007 Neither the whole nor any part of the information contained herein nor the product described in this manual may be adapted or reproduced in any material or electronic form without the prior written consent of the copyright holder. This product and its documentation are supplied on an as-is basis, and no warranty as to their suitability for any particular purpose is either made or implied. DLP Design, Inc. will not accept any claim for damages whatsoever arising as a result of the use or failure of this product. Your statutory rights are not affected. This product or any variant of it is not intended for use in any medical appliance, device or system in which the failure of the product might reasonably be expected to result in personal injury. This document provides preliminary information that may be subject to change without notice. 9.0 CONTACT INFORMATION DLP Design, Inc. 1605 Roma Lane Allen, TX 75013 Phone: 469-964-8027 Fax: 415-901-4859 Email Sales: firstname.lastname@example.org Email Support: email@example.com Website URL: http://www.dlpdesign.com Rev. 1.1 (September 2007) 4 © DLP Design, Inc.