Related Manuals for Omega OMG-USB-485-1
Summary of Contents for Omega OMG-USB-485-1
- Page 1 User’ s Guide Shop online at www.omega.com e-mail: info@omega.com OMG-USB-485-1 Single Port RS-422/485/530 to USB Adaptor...
- Page 2 Toll Free in United Kingdom: 0800-488-488 e-mail: sales@omega.co.uk It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply. OMEGA is constantly pursuing certification of its products to the European New Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification.
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Page 3: Table Of Contents
Contents ................1 NTRODUCTION ....................1 VERVIEW ’ ................1 NCLUDED ................2 NSTALLATION ..........2 PERATING YSTEM NSTALLATION ................ 2 YSTEM NSTALLATION ................6 ONFIGURATION ..........6 LECTRICAL NTERFACE ELECTION ................7 WITCH XAMPLES ............8 ECHNICAL ESCRIPTION ....................8 EATURES (DB25 M )......... - Page 4 Figures: Figure 1- RS-530/422 4 Wire 485 (Default)............7 Figure 2 - RS-485, 2 Wire with Echo..............7 Figure 3 - RS-485, 2 Wire No Echo..............7 Figure 4 - Asynchronous Communications Bit Diagram......14...
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Page 5: Introduction
I/O ports or IRQ’s. It does require a system that supports USB both in terms of hardware and operating system. What’s Included The OMG-USB-485-1 is shipped with the following items. If any of these items is missing or damaged, contact the supplier. •... -
Page 6: Installation
The OMG-USB-485-1: can be connected to any Upstream Type “A” port either at the PC host or an Upstream Hub. The OMG-USB-485-1 is hot-pluggable, meaning there is no need to power down your computer prior to installation. - Page 7 Installation Since you have already installed the software by running “Setup”, simply click “Next” to proceed. The drivers that were installed during setup will automatically be used to configure the adapter for use. OMG-USB-485-1 Page 3...
- Page 8 Found”, indicating the actual port being created. If you view your systems Device Manager at this point, you should have a new “COM” port in the Port(COM & LPT) Device Class. It should look similar to the screen shot on the following page. OMG-USB-485-1 Page 4...
- Page 9 In this case, it is COM5: but this assignment will vary from system to system. At this point, the hardware is recognized. To verify operation use the supplied WinSSD diagnostic utility. WinSSD can be found in the Start, Programs group. OMG-USB-485-1 Page 5...
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Page 10: Configuration
Configuration Electrical Interface Selection The port on the OMG-USB-485-1 has the ability to be used as RS-530/422/485, RS-422 or 2 wire RS-485. This is selectable via the DIP-switch SW1. The chart below describes each of the switch position’s function. Please refer to the following page for switch setting examples. -
Page 11: Switch Examples
1 2 3 4 5 6 7 8 Figure 2 - RS-485, 2 Wire with Echo R S - 4 8 5 O F F 1 2 3 4 5 6 7 8 Figure 3 - RS-485, 2 Wire No Echo OMG-USB-485-1 Page 7... -
Page 12: Technical Description
No system resources are required (i.e. I/O ports or IRQ’s) • LED status indicators for “USB Enabled”, “TD”, and “RD” Connector Pin Assignments (DB25 Male) The OMG-USB-485-1 complies with the EIA-530 pin out with the following signals supported Signal Name... -
Page 13: Specifications
Supply line +5 VDC Rating 50 mA Mean Time Between Failures (MTBF) Greater than 150,000 hours. (Calculated) Physical Dimensions Package Length 3.8 inches (9.66 cm) Package Width 2.3 inches (5.84 cm) Package Height 1.0 inches (2.54 cm) OMG-USB-485-1 Page 9... -
Page 14: Appendixa - Troubleshooting
TD and RD LED”s flashing as well as seeing echoed data on the screen. The loopback test first transmits a HEX pattern, 55AA, and then an ASCII string of data. If this test passes, then the OMG-USB-485-1 is ready for use in your application. -
Page 15: Appendixb - How T Og
Technical support is available Monday through Friday from 8:30 a.m. to 6:00 p.m. Eastern time. Technical support can be reached at 1-800-DAS-IEEE. RETURN AUTHORIZATION MUST BE OBTAINED FROM OMEGA BEFORE RETURNED MERCHANDISE WILL BE ACCEPTED. AUTHORIZATION CAN BE OBTAINED BY CALLING OMEGA CUSTOMER SERVICE AND REQUESTING AN AUTHORIZED RETURN (AR) NUMBER. -
Page 16: Appendixc - Electrical
1 driver and up to 32 receivers on the line at once. RS-422 signal levels range from 0 to +5 volts. RS-422 does not define a physical connector. OMG-USB-485-1 Page 12... -
Page 17: Rs-485
(Tx+ to Rx+ and Tx- to Rx-). Four wire mode allows full duplex data transfers. RS-485 does not define a connector pin-out or a set of modem control signals. RS-485 does not define a physical connector. OMG-USB-485-1 Page 13... -
Page 18: Appendixd - Asynchronous
The data rate and communication parameters for asynchronous communications have to be the same at both the transmitting and receiving ends. The communication parameters are baud rate, parity, number data bits character, stop bits (i.e. 9600,N,8,1). OMG-USB-485-1 Page 14... -
Page 19: Appendixe - Compliance
Always use cabling provided with this product if possible. If no cable is provided or if an alternate cable is required, use high quality shielded cabling to maintain compliance with EMC directives. OMG-USB-485-1 Page 15... - Page 20 Department will issue an Authorized Return (AR) number immediately upon phone or written request. Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, includ- ing but not limited to mishandling, improper interfacing, operation outside of design limits, improper repair, or unauthorized modification.
- Page 21 Where Do I Find Everything I Need for Process Measurement and Control? OMEGA…Of Course! Shop online at www.omega.com TEMPERATURE Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies Wire: Thermocouple, RTD & Thermistor Calibrators & Ice Point References Recorders, Controllers & Process Monitors...
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