BaudMaster TM Isolated USB to RS-485/RS-422 Converters 1-Port: BMUSB-ID1 2-Port: BMUSB-ID2 User’s Manual Rev. 1.0 11/26/10 Innovative I/O Since 1977 6979 Wales Road Northwood, Ohio 43619 Phone: 800-248-1632 or 419-666-4700 Fax: 419-666-4702 website: www.baudmaster.com email: info@Dutec.net email: support@Dutec.
BaudMasterTM USB to RS-485/422 Converter Copyright © 2010 Electronic Solutions, Inc 1-800-248-1632 User’s Manual Page 2
BaudMasterTM USB to RS-485/422 Converter BaudMaster User’s Manual TM Isolated USB to RS-485/RS-422 Converter User’s Manual 5 Year Warranty Interface converter products, sold by Dutec, Inc., are warranted against defects in materials and workmanship for five years from the date of purchase. There are no other express or implied warranties and no warranty of merchantability or fitness for a particular purpose.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Table of Contents 1 Introduction ............................................ 5 2 Features .................................................. 6 3 Driver Installation .................................. 7 3.1 Windows 7 Install.................................. 8 3.2 Windows 7 Uninstall ........................... 17 3.3 Windows Vista Install.......................... 22 3.4 Windows Vista Uninstall ..................... 32 3.5 Windows XP Install .......
BaudMasterTM 1 USB to RS-485/422 Converter User’s Manual Introduction The BaudMasterTM USB converters are designed to allow the connection of RS-485 and RS-422 devices to any USB equipped PC. The converters function as a USB-to-UART bridge with an isolated RS-485/422 interface. For RS-485 networks the converters automatically control the direction of serial data eliminating the need for software flow control.
BaudMasterTM 2 USB to RS-485/422 Converter User’s Manual Features USB Port Powered (-ID1) No external power supply is required (USB low power device). USB Port Powered or Self Powered (-ID2) USB high power device (> 100mA) that can be powered directly from the USB host or self-powered hub. For operation with a bus-powered hub the converter can be powered from an external 5V supply. The 5V power input is protected from over-voltage and reverse polarity connections.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Status LEDs Status LEDs are provided for transmit and receive data. Pluggable Terminal Blocks Industrial rated pluggable terminal blocks for ease of installation or removal. Accepts up to 16 AWG wire. High Retention USB Connector A high retention force USB connector ensures a reliable connection. Stainless Steel Enclosure A rugged stainless steel enclosure provides protection from harsh environments.
BaudMasterTM USB to RS-485/422 Converter User’s Manual 3.1 Driver Installation for Windows 7 If a Dutec converter has already been installed on the PC the new converter will automatically be installed using the existing drivers. To force the use of the new driver files the existing drivers need to be removed. Refer to the Uninstalling Devices and Drivers for Windows 7 section for more information. Insert the BaudMasterTM CD into the PC’s CD-ROM drive.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Installation without Windows Update (no internet connection) Click on the Windows ‘start’ button to open the start menu and select ‘Control Panel’. From the Control Panel window select ‘Hardware and Sound’ (Figure 3.1.2) Figure 3.1.2 Select ‘Device Manager’ from ‘Devices and Printers’ (Figure 3.1.3) Figure 3.1.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Figure 3.1.4 Right click on the BMUSB Converter to open a menu (Figure 3.1.5) and select ‘Update Driver Software’. Figure 3.1.
BaudMasterTM USB to RS-485/422 Converter User’s Manual At the next window select ‘Browse my computer for driver software’ (Figure 3.1.6) Figure 3.1.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Enter the driver file path in the combo-box (‘D:\Dutec\BMUSB Driver’ in Figure 3.1.7 below) or browse to it by clicking the browse button. The drive letter (‘D:’ in this example) may differ due to the PC’s configuration or if selecting the folder containing the un-zipped driver files. Once the file path has been entered in the box, click ‘Next’ to proceed. Figure 3.1.
BaudMasterTM USB to RS-485/422 Converter User’s Manual ‘USB Serial Port’ now appears under ‘Other devices’ with a yellow warning symbol to indicate that no Virtual Com Port driver is installed. Figure 3.1.9 Right click on the USB Serial Port to open a menu (Figure 3.1.10) and select ‘Update Driver Software’. Figure 3.1.
BaudMasterTM USB to RS-485/422 Converter User’s Manual At the next window select ‘Browse my computer for driver software’ (Figure 3.1.11) Figure 3.1.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Enter the driver file path in the combo-box or browse to it by clicking the browse button (Figure 3.1.12). Once the file path has been entered in the box, click ‘Next’ to proceed. Figure 3.1.12 The operating system will display a screen when the installation is finished (Figure 3.1.13). The COM port number may vary depending on the assignment of other existing ports. Click ‘Close’. Figure 3.1.
BaudMasterTM USB to RS-485/422 Converter User’s Manual If installing a multiple port converter repeat the procedure for each additional COM port. After successfully completing the driver installation the converter will be assigned a communications port (Com Port) number. To find this assignment and other device information run the program PortFinder which is located on the installation CD. Click the ‘Request Com Port Info’ button to get information on all installed Dutec converters. Figure 3.1.
BaudMasterTM USB to RS-485/422 Converter User’s Manual 3.2 Uninstalling Devices and Drivers for Windows 7 Microsoft Windows 7 will only allow the operating system itself to delete driver files and modify registry values. Devices can be removed using the Device Manager by right-clicking on the entry and selecting "Uninstall". This will delete the associated registry entries for that device only.
BaudMasterTM USB to RS-485/422 Converter User’s Manual A window opens that informs you that the device will be uninstalled (Figure 3.2.2). Check the “Delete the driver software for this device” box and click “OK”. Figure 3.2.2 Right click the USB Serial Converter under “Universal Serial Bus controllers” and select “Uninstall”. A window opens that informs you that the device will be uninstalled (Figure 3.2.3). Check the “Delete the driver software for this device” box and click “OK”. Figure 3.2.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Uninstalling Driver Files WITHOUT Converter Connected Devices that are not connected are not usually displayed in the Device Manger. To uninstall a disconnected device it must first be made visible in the Device Manger by performing the following procedure: Open "Control Panel > System & Security > System > Advanced System Settings" and click "Environment Variables…" (Fig 3.2.4). Figure 3.2.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Create a new System Variable called "DevMgr_Show_NonPresent_Devices" and set the value to 1, then click “OK” (Figure 3.2.5). Figure 3.2.5 The new variable will appear in the System Variable list box. Click “OK” (Figure 3.2.6). Figure 3.2.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Open the Device Manager and select "View > Show Hidden Devices ". Device Manager will then show all hidden and nonpresent devices (Figure 3.2.7). Figure 3.2.7 The converter can now be uninstalled as if it was a connected device (see “Uninstalling the Converter Driver Files with Converter Connected”).
BaudMasterTM USB to RS-485/422 Converter User’s Manual 3.3 Driver Installation for Windows Vista If a Dutec converter has already been installed on the PC the new converter will automatically be installed using the existing drivers. To force the use of the new driver files the existing drivers need to be removed. Refer to the Uninstalling Devices and Drivers for Windows Vista section for more information. Insert the BaudMasterTM CD into the PC’s CD-ROM drive.
BaudMasterTM USB to RS-485/422 Converter User’s Manual If the computer is connected to the internet the OS will connect to the Windows Update site and automatically download and install the drivers (Figure 3.3.2). Refer to the end of this section for information on completing and verifying the installation. Figure 3.3.2 If internet access isn’t available the window shown in Figure 3.3.3 will appear. Select "I don’t have the disc. Show me other options".
BaudMasterTM USB to RS-485/422 Converter User’s Manual Select "Browse my computer for driver software (advanced)" as shown in Figure 3.3.4. Figure 3.3.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Enter the driver file path in the combo-box ("E:\Dutec\BMUSB Driver" in Figure 3.3.5 below) or browse to it by clicking the browse button. The drive letter (“E:” in this example) may differ due to the PC’s configuration or if selecting the folder containing the un-zipped driver files. Once the file path has been entered in the box, click “Next” to proceed. Figure 3.3.
BaudMasterTM USB to RS-485/422 Converter User’s Manual The operating system will display a screen as it copies the driver files and then the screen shown in Figure 3.3.6 should be displayed to indicate that the installation was successful. Click “Close” to complete the first part of the installation. Figure 3.3.
BaudMasterTM USB to RS-485/422 Converter User’s Manual The Found New Hardware Wizard will launch automatically to install the COM port emulation drivers. As above, select "I don’t have the disc. Show me other options" as shown in Figure 3.3.7. Figure 3.3.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Select "Browse my computer for driver software (advanced)" as shown in Figure 3.3.8. Figure 3.3.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Enter the driver file path in the location box as shown in Figure 3.3.9 or browse to it by clicking the browse button. Once the file path has been entered in the box click “Next” to proceed. Figure 3.3.
BaudMasterTM USB to RS-485/422 Converter User’s Manual The operating system will display a screen as it copies the driver files and then the screen shown in Figure 3.3.10 should be displayed to indicate that the installation was successful. Click “Close” to complete the first part of the installation. Figure 3.3.10 If installing a multiple port converter Windows Vista will automatically install the drivers for the additional serial ports after completing the initial port installation.
BaudMasterTM USB to RS-485/422 Converter User’s Manual The operating system will display a message indicating that the converter is ready to use. Click on the message box and a summary is displayed as shown in Figure 3.3.11 (the COM number may vary). Click “Close”. Figure 3.3.11 After successfully completing the driver installation the converter will be assigned a communications port (Com Port) number.
BaudMasterTM USB to RS-485/422 Converter User’s Manual 3.4 Uninstalling Devices and Drivers for Windows Vista Uninstalling the Device and Driver Files with Converter Connected Open the Device Manager (located in ‘Control Panel\System’ then select ‘Device Manger’) and select ‘View > Devices by type’. Expand the ‘Ports (COM & LPT)’ and ‘Universal Serial Bus controllers’ groups.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Right click the device under ‘Ports (COM & LPT)’ and select ‘Uninstall’. A window opens that informs you that the device will be uninstalled (Figure 3.4.2). Check the ‘Delete the driver software for this device’ box and click ‘OK’. Figure 3.4.2 Right click the device under ‘Universal Serial Bus controllers’ and select ‘Uninstall’. A window opens that informs you that the device will be uninstalled (Figure 3.4.3).
BaudMasterTM USB to RS-485/422 Converter User’s Manual Uninstalling the Device and Driver Files WITHOUT Converter Connected Devices that are not connected are not usually displayed in the Device Manger. To uninstall a disconnected device it must first be made visible in the Device Manger by performing the following procedure: Open ‘Control Panel > System’ then select the ‘Advanced’ tab and click ‘Environment Variables’ (Figure 3.4.4). Figure 3.4.
BaudMasterTM USB to RS-485/422 Converter User’s Manual In the System Variables section (NOT THE USER VARIABLES SECTION), click ‘New...’ to display the window shown in Figure 3.4.5. Figure 3.4.5 Create a new System Variable called ‘DevMgr_Show_NonPresent_Devices’ and set the value to 1, then click ‘OK’ (Figure 3.4.6). Figure 3.4.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Open the Device Manager (located in ‘Control Panel\System’ then select ‘Device Manger’) and select ‘View > Show Hidden Devices ‘. Device Manager will then show all hidden and nonpresent devices available on that PC as shaded. The device can now be uninstalled as if it was a connected device (see ‘Uninstalling the Device and Driver Files with Converter Connected’).
BaudMasterTM USB to RS-485/422 Converter User’s Manual 3.5 Driver Installation for Windows XP Installing via the Found New Hardware Wizard If a Dutec converter has already been installed on the PC the new converter will automatically be installed using the existing drivers. To force the use of the new driver files the existing drivers need to be removed. Refer to the Uninstalling Converter Driver Files for Windows XP section for more information. Insert the BaudMasterTM CD into the PC’s CD-ROM drive.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Select ‘Install from a list or specific location (Advanced)’ as shown in Figure 3.5.2 below and then click ‘Next’. Figure 3.5.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Select ‘Search for the best driver in these locations’ and enter the file path in the combo-box (‘D:\Dutec\BMUSB Driver’ in Figure 3.5.3 below) or browse to it by clicking the ‘Browse’ button. The drive letter (‘D:’ in this example) may differ due to the PC’s configuration or if selecting the un-zipped driver files. Once the file path has been entered in the box click ‘Next’ to proceed. Figure 3.5.
BaudMasterTM USB to RS-485/422 Converter User’s Manual The operating system will display a screen as it copies the driver files and then the screen shown in Figure 3.5.5 should be displayed to indicate that the installation was successful. Click ‘Finish’ to complete the installation. Figure 3.5.
BaudMasterTM USB to RS-485/422 Converter User’s Manual The Found New Hardware Wizard will launch automatically to install the COM port emulation drivers. As above, select ‘No, not this time’ from the options and click ‘Next’ to proceed with the installation (Figure 3.5.6). Figure 3.5.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Select ‘Install from a list or specific location (Advanced)’ as shown in Figure 3.5.7 below and then click ‘Next’. Figure 3.5.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Select ‘Search for the best driver in these locations’ and enter the file path in the combo-box or browse to it by clicking the ‘Browse’ button. Once the file path has been entered in the box click ‘Next’ to proceed. Figure 3.5.
BaudMasterTM USB to RS-485/422 Converter User’s Manual The operating system will display a screen as it copies the driver files and then the screen shown in Figure 3.5.9 should be displayed to indicate that the installation was successful. Click ‘Finish’ to complete the installation. Figure 3.5.9 If installing a multiple port converter repeat the procedure for each additional COM port.
BaudMasterTM USB to RS-485/422 Converter User’s Manual After successfully completing the driver installation the converter will be assigned a communications port (Com Port) number. To find this assignment and other device information run the program PortFinder which is located on the installation CD. Click the ‘Request Com Port Info’ button to get information on all installed Dutec converters. Figure 3.5.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Installing from Windows Update (requires internet access) Installing from Windows Update is similar to installing via the ‘Found New Hardware Wizard’. Click ‘Yes, this time only’ (Fig 3.5.11) and ‘Install the software automatically’ (Fig 3.5.12). The wizard will search the Windows Update site and automatically download and install the matching driver. Figure 3.5.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Figure 3.5.12 After successfully completing the driver installation run the program PortFinder to determine Com port assignments and other information. See ‘Installing via the Found New Hardware Wizard’ for more information.
BaudMasterTM USB to RS-485/422 Converter User’s Manual 3.6 Uninstalling Devices for Windows XP Uninstalling the Converter from the System Registry Open the Device Manager (located in ‘Control Panel\System’ then select the ‘Hardware’ tab and click ‘Device Manger’) and select ‘View > Devices by type’. Expand the ‘Ports (COM & LPT)’ and ‘Universal Serial Bus controllers’ groups. The device appears as a USB Serial Port (COMx) and USB Serial Converter (Figure 3.6.1). Figure 3.6.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Right click the device under ‘Ports (COM & LPT)’ and select ‘Uninstall’. A window opens that informs you that the device will be uninstalled (Figure 3.6.2). Click ‘OK’. Figure 3.6.2 If uninstalling a multiple port converter perform the above step for all BaudMasterTM COM ports. Right click the device under ‘Universal Serial Bus controllers’ and select ‘Uninstall’. A window opens that informs you that the device will be uninstalled (Figure 3.6.3).
BaudMasterTM USB to RS-485/422 Converter User’s Manual Uninstalling Converter Driver Files for Windows XP The program ‘CDMuninstallerGUI.exe’ located in the ‘Dutec\Uninstaller’ directory is used to remove the driver files from the PC. Double-click the .exe file to run the program. Enter the BaudMasterTM product ID and click ‘Add’ (Figure 3.6.4). 1-Port Converter ID: 6001 2-Port Converter ID: 6010 1-Port Converters Figure 3.6.
BaudMasterTM 4 USB to RS-485/422 Converter User’s Manual Description The diagram below shows the function blocks, signal paths and isolation of the BaudMasterTM USB-to-RS485/422 converter. The isolated BaudMasterTM converter provides full galvanic isolation from the RS485/422 interface to the USB port. Galvanic isolation breaks the signal, power and ground paths using transformer and optical technology. Data is allowed to flow between systems but not electrical current, eliminating grounding problems.
BaudMasterTM 4.1 USB to RS-485/422 Converter User’s Manual USB Performance BaudMasterTM USB converters transfer data using USB Bulk transfers. The most efficient way to conduct USB bulk transfers is in large chunks. The converters are bi-directional and can therefore both send and receive data across a USB connection.
BaudMasterTM 4.2 USB to RS-485/422 Converter User’s Manual LED Indicators The BaudMasterTM converter has several status LED indicators. These indicators show the status of data communications and are handy for verifying operation and troubleshooting network problems. LED Name LED Function TxD Transmit - Red indicates that the converter is sending data. RxD Receive - Red indicates that the converter is receiving data.
BaudMasterTM 5 USB to RS-485/422 Converter User’s Manual Configuration The BaudMasterTM can be configured to accommodate various RS-485/422 networks. The DIP switches allow the device to be configured to operate in these modes: RS-485 without Echo Multidrop mode for communication in half duplex (2-wire) networks or as a master in full duplex (4-wire) networks. The transmitter is enabled and the receiver is disabled when data is sent. In this mode the communications port will not “hear itself talk”.
BaudMasterTM 5.1 USB to RS-485/422 Converter User’s Manual Half Duplex RS-485 Network Twisted pair connection between devices (32 devices max). Transmitters do not drive network when idle. Optional termination at both ends of network (see Network Termination). Optional line bias at one end (see Network Bias). Ground connection (GND) required between devices. Transmit data is heard on receiver if echo mode is enabled.
BaudMasterTM 5.2 USB to RS-485/422 Converter User’s Manual Full-Duplex RS-485 Network Twisted pair connection between devices (32 devices max). Transmitters do not drive network when idle. One master device transmits to multiple slave devices over one twisted pair. Slave devices share one twisted pair to transmit data to master device. Master transmit line terminated at far end if master is at one end of network or at both ends if master is located between slaves (see Network Termination).
BaudMasterTM USB to RS-485/422 Converter User’s Manual 5.3 Two-Wire (Broadcast) RS-422 Network Twisted pair connection between 1 driver and 1-32 receivers (two wires plus ground). Transmitter always enabled. Network terminated at receiver located at end of network (see Network Termination). Line biasing not required. Ground connection (GND) required between devices.
BaudMasterTM 5.4 USB to RS-485/422 Converter User’s Manual Four-Wire (Full Duplex) RS-422 Network Twisted pair connection between 1 driver and 1 receiver (four wires plus ground). Transmitters always enabled. Network terminated at receivers only (see Network Termination). Line biasing not required. Ground connection (GND) required between devices.
BaudMasterTM 5.5 USB to RS-485/422 Converter User’s Manual Network Termination The BaudMasterTM provides several options for terminating an RS-485 or RS-422 bus. The decision of what kind of termination depends on data rate, cable length and other nodes on the bus. Terminating resistors are used to prevent transmission line reflections. The type of termination is selected with the DIP switches. No Termination Suitable for slow (9600B / 2000ft) or short (230.4kB / 100ft) networks.
BaudMasterTM 5.6 USB to RS-485/422 Converter User’s Manual Network Bias Bias resistors are used to maintain the proper idle voltage state (200mV across a receiver). There are two bias configurations that are selected with DIP switches. Light Bias • Configure light bias for devices installed on un-terminated networks. • Configure light bias for devices that are NOT providing bias on 120 ohm terminated networks. Heavy Bias • Provides proper idle line voltage level on 120 ohm terminated networks.
BaudMasterTM 5.7 USB to RS-485/422 Converter User’s Manual Power Selection – Dual Port Converter The dual-port BMUSB converter is a USB high power device (> 100mA) that can be powered directly from the USB host or self-powered hub. For operation with a bus-powered hub (100mA max load per port) the converter can be configured for self-powered operation and use an external 5V supply. Jumpers W1 and W2 select the mode of operation. To change the configuration, remove the two screws as shown.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Bus Powered (factory default) Install jumpers W1 and W2 as shown. The converter is powered from the USB port and no external power supply is required. This is the preferred configuration for operating the converter with a USB host (PC) or self-powered hub. Self Powered Install jumpers W1 and W2 as shown. The converter draws no more than 100mA from the USB port. The network drivers and receivers are powered from an external 5V supply.
BaudMasterTM USB to RS-485/422 Converter User’s Manual Self Powered (cont.) The self-powered configuration requires an external regulated 5VDC power supply that can provide a minimum of 300mA. A supply with a 120VAC 50-60Hz input is available from Dutec. Many power supplies use the same barrel-style DC power plug but have different output voltages.
BaudMasterTM 6 6.1 USB to RS-485/422 Converter User’s Manual Wiring Half Duplex Wiring To connect to a half duplex network install the twisted pair data wires and ground wire as shown. See the Cable chapter for recommendations on selecting the appropriate twisted pair cable. 6.2 Full Duplex Wiring To connect to a full duplex network install the two twisted pairs of data wires and ground wire as shown.
BaudMasterTM 6.3 USB to RS-485/422 Converter User’s Manual Termination Plugs The termination plugs are available in two styles. The parallel style allows the wire to enter the terminals parallel to the unit. This style is standard and probably preferable in most cases. Parallel Style Termination The vertical style allows the wire to enter the terminals perpendicular to the unit. Vertical Style Termination The termination style is specified in the BaudMasterTM order number.
BaudMasterTM 7 USB to RS-485/422 Converter User’s Manual DIN Rail Adapter (DA-01) Fasten the optional DA-01 DIN Rail Adapter to the BaudMasterTM with the mounting screws provided. Mounts to standard DIN rail profiles: 35 mm x 7.5 mm, 35 mm x 15 mm and 32 mm x 15 mm G-profile DIN Rail.
BaudMasterTM 8 USB to RS-485/422 Converter User’s Manual Ordering Information The BaudMasterTM USB to Isolated RS-485/422 converter is available in single port and dual port configurations. See the website at www.baudmaster.com or call 800-248-1632 for current pricing. Model Isolated 485/422 Ports Power Termination Plug BMUSB-ID1-P 1 Bus – 100mA max. Parallel Entry BMUSB-ID1-V 1 Bus – 100mA max. Vertical Entry BMUSB-ID2-P 2 Bus – 200mA max. or Self (Ext.
BaudMasterTM 9 USB to RS-485/422 Converter User’s Manual Specifications Isolated USB to RS-485/422 Converters USB Standard: 1.1 and 2.0 Compliant Connector: USB Type B Female w/ High Retention USB UART: FTDI Part Number FT232R (www.ftdichip.com) USB Software (WHQL Certified Drivers) Windows 7 32 and 64-bit Windows Vista and Vista 64-bit Windows XP and XP 64-bit Windows 2000 Other drivers (Win98, ME, Mac and Linux) available. Contact Dutec for information. RS-485/422 Baud Rate: 183 to 921.
BaudMasterTM 9.
BaudMasterTM 10 USB to RS-485/422 Converter User’s Manual Cable RS-422 and RS-485 communications requires twisted pair, low capacitance cable, with a nominal impedance of 100-120 ohms. The decision to use shielded cable depends on the application.
