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Comtrol DeviceMaster LT User Manual

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  • Page 1 User Guide...
  • Page 2 Trademark Notices Comtrol, NS‐Link, and DeviceMaster are trademarks of Comtrol Corporation.  Microsoft and Windows are registered trademarks of Microsoft Corporation.  HyperTerminal is a registered trademark of Hilgraeve, Inc.  Portions of SocketServer are copyrighted by GoAhead Software, Inc. Copyright © 2001. GoAhead Software, Inc. All  Rights Reserved. Second Edition, July 18, 2014 Copyright  Other product names mentioned herein may be trademarks and/or registered trademarks of their respective owners. © 2014. Comtrol Corporation. All  Rights Reserved. Comtrol Corporation makes no representations or warranties with regard to the contents of this document or to the  suitability of the Comtrol product for any particular purpose. Specifications subject to change without notice. Some  software or features may not be available at the time of publication. Contact your reseller for current product  information. Document Number: 2000586 Rev. B...

  • Page 3: Table Of Contents

    Checking the SocketServer Version ....................... 22 Uploading SocketServer with PortVision DX..................24 Customizing PortVision DX ........................26 Accessing DeviceMaster LT Documentation from PortVision DX........... 27 How to Download Documentation ......................27 How to Open Previously Downloaded Documents .................. 28 Device Driver (NS-Link) Installation ................29 Overview................................
  • Page 4 Table of Contents DeviceMaster LT Security....................45 Understanding Security Methods and Terminology................45 TCP and UDP Socket Ports Used by the DeviceMaster LT ............... 50 DeviceMaster LT Security Features ....................... 51 Security Modes............................51 Secure Data Mode and Secure Config Mode Comparison ..............52 Security Comparison ..........................
  • Page 5 Sending and Receiving Test Data (RS-232/422/485: 4-Wire) ............... 119 Loopback Test (RS-232).......................... 120 Sending and Receiving Data (RS-485: 2-Wire) ..................121 Socket Mode Serial Port Testing ......................124 DeviceMaster LT User Guide: 2000586 Rev. B Table of Contents - 5...
  • Page 6 TX/RX LEDs............................129 Network and Device LEDs ........................130 Removing DeviceMaster LT Security Features.................. 131 Serial Connection Method ........................131 Returning the DeviceMaster LT to Factory Defaults ............... 133 Clearing the Flash ..........................134 Clearing EEPROM..........................134 Telnet Access ............................ 134 Serial Port Access ..........................

  • Page 7: Introduction

    • Locating Software and Documentation on Page 9 DeviceMaster LT Port Usage DeviceMaster LT serial ports can be configured for many environments, which include the following: • COM port (or secure COM ports) when the NS-Link driver for Windows is installed •...

  • Page 8: Ns-Link Com Port Driver Installation Overview

    NS-Link tty Port Use the following steps, which are discussed in detail in the subsequent sections, Installation to install and configure the DeviceMaster LT to run the NS-Link device driver for Overview Linux operating systems. 1. After connecting the DeviceMaster LT, programming the IP address, and uploading the latest version of SocketServer, you are ready to install the driver.

  • Page 9: Tcp/Ip Socket Port Installation Overview

    Page 65 for cabling and connector information. Locating Software and Documentation You can access the appropriate software assembly, PortVision DX, and DeviceMaster LT documentation from the Comtrol ftp site using any of these methods: • Comtrol Software and Documentation CD shipped with the DeviceMaster LT provides links to the latest files.
  • Page 10 Note: May sure that you download Bootloader for the DeviceMaster LT (link at right). Other DeviceMaster models use a unique version of Bootloader. You can check for the latest version of this Guide. DeviceMaster LT User Guide: 2000586 Rev. B 10 - Introduction...

  • Page 11: Hardware Installation

    DeviceMaster LT is functioning properly. Note: The RX/TX LEDs cycle during a reboot. • STAT (Status LED) - If the Status LED on the DeviceMaster LT is lit, it indicates the DeviceMaster LT has power and it has completed the boot cycle.
  • Page 12 Hardware Installation DeviceMaster LT User Guide: 2000586 Rev. B 12 - Hardware Installation...

  • Page 13: Initial Configuration

    Initial Configuration There are several ways to configure network information. Comtrol Technical Support recommends connecting the DeviceMaster LT to a PC or laptop running Windows and installing PortVision DX for initial configuration. Optionally, you can use RedBoot to configure the network address and upload...

  • Page 14: Portvision Dx Requirements

    Configuring Security Settings and PortVision DX The following list provides basic PortVision DX operations that are affected how the DeviceMaster LT interacts with PortVision DX when security is enabled using the web interface (SocketServer/NS-Link). •...

  • Page 15: Installing Portvision Dx

    DeviceMaster LT units, if they are in the same network segment. Use the Software and Documentation CD that came with the DeviceMaster LT to check for the latest version of PortVision DX or use the link below to download the latest version.
  • Page 16 Installing PortVision DX 5. Click Next or optionally, browse to a different location and then click Next. 6. Click Next to configure the shortcuts. 7. Click Install. DeviceMaster LT User Guide: 2000586 Rev. B 16 - Initial Configuration...
  • Page 17 Scan. You can save time if you only scan for DeviceMasters. Note: If the Comtrol Ethernet attached product is not on the local segment and it has been programmed with an IP address, it will be necessary to manually add the Comtrol Ethernet attached product to PortVision DX.

  • Page 18: Configuring The Network Settings

    The following procedure shows how to configure a single DeviceMaster LT connected to the same network segment as the Windows system. If the Gateway address: DeviceMaster LT is not on the same physical segment, you can add it manually 192.168.250.1 using Adding a New Device in PortVision DX on Page 75.
  • Page 19 • Double-click the DeviceMaster LT in the Device Tree or Device List pane. • Highlight the DeviceMaster LT in the Device Tree or Device List pane and click the Properties button. • Right-click the DeviceMaster LT in the Device Tree or Device List pane and click Properties in the popup menu •...
  • Page 20 If you want to disable IP communications on the DeviceMaster LT, click Disable IP. • To use the DeviceMaster LT with DHCP, click DHCP IP, and make sure that you provide the MAC address of the device to the network administrator. Make sure that the administrator reserves the IP address, subnet mask and gateway address of the DeviceMaster LT in the DHCP server.
  • Page 21 12. Click Close to exit the Properties window. 13. Go to Checking the SocketServer Version on Page 22 to check the SocketServer version. You should update SocketServer firmware before any further configuration. DeviceMaster LT User Guide: 2000586 Rev. B Initial Configuration - 21...

  • Page 22: Checking The Socketserver Version

    Use the following procedure to check the SocketServer version on the DeviceMaster LT and check the ftp site for the latest version. 1. If necessary, open PortVision DX > Start/Programs > Comtrol > PortVision DX > PortVision DX or use the desktop shortcut and scan the network.
  • Page 23 SocketServer: ftp:// ftp.comtrol.com/dev_mstr/LT/software/socketserver. 4. If the version on the web site is later than the version on the DeviceMaster LT, download the file, and then go to Uploading SocketServer with PortVision DX on Page 24.

  • Page 24: Uploading Socketserver With Portvision Dx

    LT using PortVision DX. Technical Support recommends updating SocketServer before any further configuration to avoid configuration problems. You can use this procedure if your DeviceMaster LT is connected to the host PC, laptop, or if the DeviceMaster LT resides on the local network segment.
  • Page 25 4. Click Yes to the Upload Firmware message that warns you that this is a sensitive process. It may take a few moments for the firmware to upload onto the DeviceMaster LT. The DeviceMaster LT reboots itself during the upload process.

  • Page 26: Customizing Portvision Dx

    The following illustrates how you can customize your view. See the PortVision DX Help system for detailed information about modifying the view. For example, the above screen shot illustrates devices layered in folders. DeviceMaster LT User Guide: 2000586 Rev. B 26 - Initial Configuration...

  • Page 27: Accessing Devicemaster Lt Documentation From Portvision Dx

    DeviceMaster LT. You can also check to see if you have the latest version of the documentation using PortVision DX. How to Download Use this procedure to initially download a document or documents.

  • Page 28: How To Open Previously Downloaded Documents

    Previously PortVision DX. Downloaded Note: Optionally, you can browse to the Program Files (x86) > Comtrol > PortVision Documents DX > Docs subdirectory and open the document. 1. If necessary, open PortVision DX > Start/Programs > Comtrol > PortVision DX >...

  • Page 29: Device Driver (Ns-Link) Installation

    DeviceMaster LT (Checking the SocketServer Version on Page 22 using PortVision DX or you can open your browser, enter the DeviceMaster LT IP address to view the version on the Server Status page • If necessary, uploaded the latest version of SocketServer...

  • Page 30: Linux Installations

    Before you install the Linux NS-Link device driver: 1. Make sure that you have programmed an appropriate network address into the DeviceMaster LT. If you do not want to install PortVision DX on a Windows system, you can use RedBoot, which is discussed in...

  • Page 31: Windows Installations

    The following NS-Link device driver installation and configuration procedures are Overview for discussed in this subsection: Windows • Install the NS-Link device driver and Comtrol Drivers Management Console using the Installation Wizard. • Configure the COM ports using the Comtrol Drivers Management Console. •...
  • Page 32 Start button at: Programs > Comtrol > DeviceMaster > DeviceMaster Driver Installation Wizard. 6. Click Finish to complete the installation of the wizard. DeviceMaster LT User Guide: 2000586 Rev. B 32 - Device Driver (NS-Link) Installation...
  • Page 33 NS-Link for Windows Installation 7. Click Next to start the driver installation. 8. Click Install and Next. 9. Select the DeviceMaster LT from the list. DeviceMaster LT User Guide: 2000586 Rev. B Device Driver (NS-Link) Installation - 33...
  • Page 34 NS-Link for Windows Installation 10. Enter the quantity of this DeviceMaster LT model that you want to install and click Ok. 11. Repeat Steps and 10 for each DeviceMaster LT that you are installing and click Next. 12. Click Proceed.

  • Page 35: Configuring The Ns-Link Driver For Windows

    Note: If you enter the MAC address, make sure that you use the correct format: 00 C0 4E xx xx xx. A space must separate each pair of digits. The MAC address is located on a label on the DeviceMaster LT or you can view it using PortVision DX.
  • Page 36 If you do not Apply the changes before leaving this screen, you will be prompted to Apply, Ignore, or Cancel the changes. 5. Now that the MAC address has been associated to the DeviceMaster LT, you can use the Network Settings screen to: •...
  • Page 37 If desired, change the User-Friendly Device Name. b. Optionally, set a different Keep Alive Timeout period. You can set the amount of time in seconds that this DeviceMaster LT waits until it closes this connection and frees all the ports associated with it.

  • Page 38: Configuring Com Port Properties For Windows

    (in use) next to COM port numbers that are already in use in this system. Do not duplicate COM port numbers as this will cause the ports to not function. DeviceMaster LT User Guide: 2000586 Rev. B 38 - Device Driver (NS-Link) Installation...

  • Page 39: Enabling Secure Data Mode

    3. Click Enable Secure Data Mode and Save. 4. Configure your security key and certificate and click Set. Click the Help button if you need information about key and certificate management. DeviceMaster LT User Guide: 2000586 Rev. B Device Driver (NS-Link) Installation - 39...
  • Page 40 Enabling Secure Data Mode DeviceMaster LT User Guide: 2000586 Rev. B 40 - Device Driver (NS-Link) Installation...

  • Page 41: Socket Port Configuration

    SocketServer Architecture on Page 42. The Help system for the web page is available on the CD on the Supporting Documents page for your DeviceMaster LT or you can download the latest version from: ftp://ftp.comtrol.com/dev_mstr/LT/software/socketserver/help/ssvr_help.zip. To use the help system: 1.

  • Page 42: Socketserver Architecture

    UDP Mode Ethernet Hub Serial RS-232 connections LAN/WAN DeviceMaster DeviceMaster In this example, four Ethernet Hub PCs receive data simultaneously from one serial device. Serial Device DeviceMaster LT User Guide: 2000586 Rev. B 42 - Socket Port Configuration...

  • Page 43: Accessing Socket Configuration

    • PortVision DX Web Browser To access the socket configuration page for the DeviceMaster LT using a web browser, follow this procedure. 1. Start your web browser. 2. Enter the IP address of the DeviceMaster LT in the URL field.

  • Page 44: Socketserver Versions

    Your SocketServer or NS-Link version may be different than these examples. The top illustration shows the web page before a NS-Link device driver installation and the bottom illustration shows the web page after a device driver installation. DeviceMaster LT User Guide: 2000586 Rev. B 44 - Socket Port Configuration...

  • Page 45: Devicemaster Lt Security

    Page 131 if you need to reset DeviceMaster LT security options. See Returning the DeviceMaster LT to Factory Defaults Page 133 if you want to return the DeviceMaster LT settings to their default values. Understanding Security Methods and Terminology The following table provides background information and definitions.
  • Page 46 For more information, see SSL Authentication on Page 53, SSL Performance on Page 56, SSL Cipher Suites on Page 56, and DeviceMaster LT Supported Cipher Suites on Page 57. DeviceMaster LT User Guide: 2000586 Rev. B 46 - DeviceMaster LT Security...
  • Page 47 See Pages 53 through 57 for detailed information about SSL. Note: Two slightly different SSL protocols are supported by the DeviceMaster LT: SSLv3 and TLSv1. DeviceMaster LT User Guide: 2000586 Rev. B DeviceMaster LT Security - 47...
  • Page 48 Configure/Enable Security Features Mode Overview on Page 58 for more information. Allows monitoring of a single serial port on the DeviceMaster LT while the Secure Monitor Data Mode via port is configured for Secure Data Mode. For more information see, the Enable Monitoring Secure Data via Telnet option on Page 59.
  • Page 49 How Public/Private Key Cryptography Works • Who Provides the Infrastructure • Digital Certificate • DH Key • Man in the Middle attack The RSA Key pair topic reference is from: http://en.wikipedia.org/wiki/RSA DeviceMaster LT User Guide: 2000586 Rev. B DeviceMaster LT Security - 49...

  • Page 50: Tcp And Udp Socket Ports Used By The Devicemaster Lt

    TCP and UDP Socket Ports Used by the DeviceMaster LT TCP and UDP Socket Ports Used by the DeviceMaster LT Following list is all of the logical TCP and UDP socket ports implemented in DeviceMaster LTs. Socket Port Number Description...

  • Page 51: Devicemaster Lt Security Features

    DeviceMaster LT Security Features DeviceMaster LT Security Features The following subsections provide information about DeviceMaster LT security features. Security Modes The DeviceMaster LT supports two security modes. Security Description Mode SSL encryption for serial port data streams for both NS-Link and SocketServer.

  • Page 52: Secure Data Mode And Secure Config Mode Comparison

    Telnet/Port23 disabled yes † disabled SSH Telnet/Port 22 Telnet Port 4607 disabled SSH (PuTTY) 4607 disabled disabled HTTP (Port 80) disabled disabled disabled HTTPS (Port 443) DeviceMaster LT User Guide: 2000586 Rev. B 52 - DeviceMaster LT Security...

  • Page 53: Ssh Server

    Encryption prevents a third-party eavesdropper from viewing data that is being transferred. Authentication allows both the client (that is, web browser) and server (that is. DeviceMaster LT) to ensure that only desired parties are allowed to establish connections. This prevents both unauthorized access and man- in-the-middle attacks on the communications channel.

  • Page 54: Client Authentication

    ID certificates presented to the DeviceMaster LT by SSL clients. This allows you to restrict access to the DeviceMaster LT to a limited set of clients which have been configured with corresponding ID certificates.
  • Page 55 RSA Server Certificate used by SSL servers • This is the RSA identity certificate that the DeviceMaster LT uses during SSL/TLS handshaking to identify itself. It is used most frequently by SSL server code in the DeviceMaster LT when clients open connections to the DeviceMaster LT's secure web server or other secure TCP ports.

  • Page 56: Ssl Performance

    SSL Performance SSL Performance The DeviceMaster LT has these SSL performance characteristics: • Encryption/decryption is a CPU-intensive process, and using encrypted data streams will limit the number of ports that can be maintained at a given serial throughput. For example, the table below shows the number of ports that can be maintained by SocketServer at 100% throughput for various cipher suites and baud rates.

  • Page 57: Devicemaster Lt Supported Cipher Suites

    The standard combinations of protocol (SSL or TLS) and cipher suites support by DeviceMaster LT are shown in the attached table. DeviceMaster LT The DeviceMaster LT supports the cipher suites:...

  • Page 58: Configure/Enable Security Features Overview

    Configure/Enable Security Features Overview Configure/Enable Security Features Overview You can enable DeviceMaster LT security features the web page (SocketServer or the NS-Link version). Key and Certificate Management must be done using the Security tab in the DeviceMaster LT web pages.
  • Page 59 Secure Data Mode is enabled. When unchecked, the monitor command can only be used if Secure Data Mode is not enabled. You must click Save and reboot the DeviceMaster LT for the change to go into affect. This option is disabled by default.

  • Page 60: Example 1

    (which will always be allowed). This option enables or disables the telnet security feature after you click Save and the DeviceMaster LT has been rebooted. This Enable Telnet/ssh option is enabled by default.

  • Page 61: Example 3

    63 41 42 43 31 32 33 61 62 63 41 42 43 31 32 33 cABC123abcABC123 Key and Certificate Key and Certificate management is only available in Edit Security Configuration Management web page. DeviceMaster LT User Guide: 2000586 Rev. B DeviceMaster LT Security - 61...
  • Page 62 Page 54 for more detailed information • All DeviceMaster LT units are shipped from the factory with identical configurations. They all have the identical, self-signed, Comtrol Server RSA Certificates, Server RSA Keys, Server DH Keys, and no Client Authentication Certificates.

  • Page 63: Using A Web Browser To Set Security Features

    Use the following steps to change security settings in the DeviceMaster LT. Configuration 1. Enter the IP address of the DeviceMaster LT in the Address field of your web browser and press the Enter key. The Software displays as NS-Link, if you have installed and configured a device driver.

  • Page 64: Changing Keys And Certificates

    Use the following steps to update security keys and certificates in the Certificates DeviceMaster LT. 1. If necessary, enter the IP address of the DeviceMaster LT in the Address field of your web browser and press the Enter key. 2. Click the Security tab.

  • Page 65: Connecting Serial Devices

    Connecting Serial Devices This section discusses connecting your serial devices to the DeviceMaster LT. It also provides you with information to build serial cables and loopback connectors to test the serial ports. Use the appropriate subsection to connect asynchronous serial devices to the DeviceMaster LT ports.

  • Page 66: Rj45 Null-Modem Cables (Rs-232)

    For example, a straight-through cable can be used to connect COM2 of one PC to COM2 to a modem. RJ45 RJ45 DB25 Pins Pins Signal Pins Pins Signal TxD or TRxD+ TxD or TRxD+ DTR or TRxD+ DTR or TRxD+ DeviceMaster LT User Guide: 2000586 Rev. B 66 - Connecting Serial Devices...

  • Page 67: Rj45 Loopback Plugs

    (Test Terminal for Windows, which is available in PortVision DX or Minicom for Linux) to test serial ports. The DeviceMaster LT is shipped with a single loopback plug (RS- 232/422). •...
  • Page 68 Connecting RJ45 Devices 3. You can refer to DeviceMaster LT LEDs on Page 129 for information about the remaining LEDs. Note: The RX/TX LEDs cycle during a reboot cycle. DeviceMaster LT User Guide: 2000586 Rev. B 68 - Connecting Serial Devices...

  • Page 69: Managing The Devicemaster Lt

    Device List pane, click Advanced >Reboot and then Yes. PortVision DX Note: If security has been enabled in the web page, you will need to reboot the DeviceMaster LT in the web page. Main page (Server Status): Scroll to the bottom of the page, Web page click Reboot and then Yes: Reboot.

  • Page 70: Updating Firmware Across Wans (Windows)

    1. If you do not have a TFTP server, you can download the appropriate one for your Windows operating system from the Comtrol ftp site. ftp://ftp.comtrol.com/contribs/utilities/3rd_party_utils_free/tftp_server Note: Depending on your Windows operating system, you may need to respond to a Security Warning popup.
  • Page 71 3. Optionally, rename the SocketServer-x.xx.bin file (where x.xx is the version number) to 1.bin to make the following steps easier. 4. If necessary, open PortVision DX: Start >Program > Comtrol > PortVision DX > PortVision DX or the desktop shortcut.
  • Page 72 Updating Firmware Across WANs (Windows) 6. In PortVision DX, right-click the DeviceMaster LT in the Device List pane for which you want to upload the latest SocketServer. and click Telnet/SSH Session. 7. Leave the popup set to Telnet and Selected Port 23, and click Ok.
  • Page 73 11. At the RedBoot> prompt, type go after the raw file string appears. 12. Close the PuTTY window and click Ok. 13. In PortVision DX, highlight the DeviceMaster LT in the Device List pane that you updated and click Refresh. You may need to click Refresh several times before you see the latest SocketServer version listed under the Software Version.

  • Page 74: Uploading Socketserver To Multiple Devicemaster Lts

    Uploading SocketServer to Multiple DeviceMaster LTs Uploading SocketServer to Multiple DeviceMaster LTs You can use this procedure if your DeviceMaster LT is connected to the host PC, laptop, or if the DeviceMaster LT resides on the local network segment. 1. If you have not done so, install PortVision DX (Installing PortVision DX Page 15) and Scan the network.

  • Page 75: Configuring Multiple Devicemaster Lts Network Addresses

    Adding a New Device in PortVision DX You can add a new DeviceMaster LT manually, if you do not want to scan the network to locate and add new DeviceMaster LTs, but there may be cases where you want to use the Add New Device window to: •...

  • Page 76: Local Using The Ip Address Or Mac Address

    Local Using the IP Address or MAC Address 7. Enter the IP Address for the DeviceMaster LT. It is not necessary to enter the Subnet Mask and Default Gateway. 8. Click Ok to close the Add New Device window. It may take a few moments to save the DeviceMaster LT.

  • Page 77: Using Socketserver Configuration Files

    8. Optionally, enter the serial number in the Serial Number list box. 9. Click Ok. 10. If necessary, click Refresh for the new DeviceMaster LT to display in the Device Tree or Device List panes. The DeviceMaster LT shows OFF-LINE if it is not attached to the network or if an incorrect IP address was entered.
  • Page 78 Done. Note: If you click All, every selected DeviceMaster LTs will be programmed with the same IP address. 5. Close the Load Configuration popup message. DeviceMaster LT User Guide: 2000586 Rev. B 78 - Managing the DeviceMaster LT...

  • Page 79: Using Driver Configuration Files

    2. Depending on your operating system, you may need to click Yes to the Do you want to allow the following program to make changes to this computer? User Account Control message. 3. Highlight the DeviceMaster LT for which you want to save the driver configuration. 4. Click Save Configuration.

  • Page 80: Saving Port-Level Configuration

    Saving Port-Level Configuration 5. Optionally, change the default file name and click Save. 6. Repeat the previous steps for each DeviceMaster LT for which you want to save the driver configuration. Saving Port-Level Use the following procedure to create and save a port configuration file. Port Configuration configuration, must be saved on a port-by-port basis.

  • Page 81: Loading Driver Configuration Files

    User Account Control message. 3. In the left pane, highlight the DeviceMaster LT for which you want to load the device-level settings from the configuration file. 4. Click Load Configuration.

  • Page 82: Loading Port Configuration

    DeviceMaster LT. For example, you needed to remove and then re-install the DeviceMaster LT NS-Link device driver. 8. Click Apply so that the configuration is saved on the DeviceMaster LT. 9. Go to the next procedure if you want to restore port settings from a configuration file.
  • Page 83 DeviceMaster LT. For example, you needed to remove and then re-install the DeviceMaster LT NS-Link device driver. DeviceMaster LT User Guide: 2000586 Rev. B Managing the DeviceMaster LT - 83...

  • Page 84: Changing The Bootloader Timeout

    1. If necessary, start PortVision DX, from Programs> Comtrol > PortVision DX > PortVision DX. 2. Right-click the DeviceMaster LT in the Device Tree or Device List pane and click Properties. 3. Type 45 in the Bootloader Timeout text box and click Apply.

  • Page 85: Managing Bootloader

    1. If you have not done so, install PortVision DX (Installing PortVision DX Page 15) and Scan the network. 2. Right-click the DeviceMaster LT in the Device List pane and click Advanced > Reboot. 3. Click Yes to the Confirm Reboot query.
  • Page 86 Uploading Bootloader 3. Right-click the DeviceMaster LT for which you want to update, click Advanced > Upload Firmware, browse to the Bootloader .bin file, and then click Open. 4. Click Yes to the Upload Firmware message that warns you that this is a sensitive process.

  • Page 87: Checking The Ns-Link Version

    2. If necessary, click Scan to locate the DeviceMaster LT. The Device List pane displays the NS-Link (SocketServer) version. 3. Check the Comtrol ftp site to see if a later version is available. To check the NS-Link version, you will need to check to see what version of SocketServer is available.

  • Page 88: Restoring Serial Port Settings

    2. Highlight the first port that you want reset to default values. 3. Click the Defaults button (and if appropriate, Clone). 4. Click Apply or Ok. If necessary, you can reset DeviceMaster LT device properties to their defaults on the Device General tab using the Defaults button. Socket Port Use the following procedure to reset the socket port serial settings.
  • Page 89 Socket Port 3. When the Reboot page appears, click the Set configuration for all ports to factory default settings check box. 4. Click the Yes, Reboot button. DeviceMaster LT User Guide: 2000586 Rev. B Managing the DeviceMaster LT - 89...

  • Page 90: Accessing Socketserver Commands In Telnet/Ssh Sessions (Portvision Dx)

    Telnet Session Use the following procedure to access a telnet session with PortVision DX. 1. In PortVision DX, PortVision DX, right-click the DeviceMaster LT in the Device List pane for which you want to open a telnet session, and click Telnet/ SSH Session.
  • Page 91 3. If necessary, enter the password and press Enter. If a password has not been set, press Enter. 4. You can type help to refer to available commands supported by SocketServer/ NS-Link. DeviceMaster LT User Guide: 2000586 Rev. B Managing the DeviceMaster LT - 91...

  • Page 92: Ssh Session

    SSH Session Use the following procedure to access an SSH session with PortVision DX. 1. In PortVision DX, PortVision DX, right-click the DeviceMaster LT in the Device List pane for which you want to open an SSH session, and click Telnet/ SSH Session.
  • Page 93 3. If necessary (depending on the operating system), respond to the security notification. 4. Press Enter. Note: The DeviceMaster LT does not have a user name. 5. If necessary, enter the password and press Enter. If a password has not been set, press Enter.

  • Page 94: Accessing Redboot Commands In Telnet/Ssh Sessions (Portvision Dx)

    Use the following procedure to access a telnet or SSH session with PortVision DX. 1. In PortVision DX, PortVision DX, right-click the DeviceMaster LT in the Device List pane for which you want to open a telnet session, and click Telnet/ SSH Session.

  • Page 95: Web Page

    Enable Telnet/ssh has not been disabled in SocketServer. To check this, return to PortVision DX, right-click the DeviceMaster LT in the Device List pane, and click Webpage. Click the Security tab and if necessary, verify that the Enable Telnet/ssh option is enabled, If it is not, click the option and then click Save, and close SocketServer.
  • Page 96 Accessing RedBoot Commands in Telnet/SSH Sessions (PortVision DX) 5. Quickly re-open the telnet or SSH session using the previous steps. 6. Select Telnet or SSH, leave the Selected Port number, and click Ok. DeviceMaster LT User Guide: 2000586 Rev. B 96 - Managing the DeviceMaster LT...
  • Page 97 Note: The dm prompt should be replaced by a redboot prompt. If not, you can reset the Bootloader timeout for a longer time period and retry this procedure. DeviceMaster LT User Guide: 2000586 Rev. B Managing the DeviceMaster LT - 97...
  • Page 98 Accessing RedBoot Commands in Telnet/SSH Sessions (PortVision DX) DeviceMaster LT User Guide: 2000586 Rev. B 98 - Managing the DeviceMaster LT...

  • Page 99: Redboot Procedures

    Note: Use the serial connection method, if the DeviceMaster LT is not on the same Ethernet network segment as the PC. If you do not know the IP address of the DeviceMaster LT you must use a serial connection to communicate with the DeviceMaster LT.

  • Page 100: Establishing A Serial Connection

    6. Verify that loading has been disabled. 7. You can use the appropriate procedure listed on Page 99 or use the RedBoot Command Overview on Page 107 to perform the desired task. DeviceMaster LT User Guide: 2000586 Rev. B 100 - RedBoot Procedures...

  • Page 101: Establishing A Telnet Connection

    Note: The DeviceMaster LT does not come pre-programmed with a password. 3. Type reset, and close the session. 4. Open a new telnet session, enter the DeviceMaster LT IP address, and the password. 5. Type dis to disable the Bootloader.

  • Page 102: Determining The Network Settings

    Determining the Network Settings Determining the Network Settings If you are not sure what the network information is on a DeviceMaster LT, you can perform the following procedure. 1. Establish communications with the DeviceMaster LT using the serial (Page 100) or telnet (Page 101) method.

  • Page 103: Changing The Bootloader Timeout

    8126464 bytes (0x00000000 - 0x007c0000) RedBoot> The Bootloader information displays. 3. Type reset to reset the DeviceMaster LT, if you do not have any other related RedBoot tasks. Note: Optionally, you can install PortVision DX on a Windows system on the network and see the Bootloader version in the Device List pane.

  • Page 104: Resetting The Devicemaster Lt

    RedBoot> prompt for the DeviceMaster LT to begin operation. Note: The LEDs on the DeviceMaster LT will go through the power up sequence. The DeviceMaster LT has completed its reset cycle when the Status LED is lit and it stops flashing. RedBoot> dis Loading disabled RedBoot>...

  • Page 105: Uploading The Firmware

    Enter. Note: The DeviceMaster LT does not come pre-programmed with a password. 4. Type reset, and close the session. 5. Open a new telnet session and enter the DeviceMaster LT IP address. Default IP Address $ telnet 192.168.250.250 Trying 192.168.250.250...

  • Page 106: Configuring Passwords

    Note: You should see file information for a file called default. If you do not see this file, repeat the process starting with Step b. Reset the DeviceMaster LT by typing reset at the RedBoot> prompt. Note: In a few seconds the ethernet and Status LED cycle through a light sequence once.

  • Page 107: Redboot Command Overview

    RedBoot, you can review the list of commands online by entering help and pressing the Enter key. For more detailed information, see the eCos Reference Manual that is located on the Comtrol Software and Documentation CD or you can download it from: ftp:// ftp.comtrol.com/dev_mstr/LT/software/redboot/user_guide.
  • Page 108 -b <location> [-l <length>] [-s] Displays (hex dump) a range of memory. [-1|2|4] † Do not use these commands to change the values. Doing so would cause the DeviceMaster LT to stop functioning. DeviceMaster LT User Guide: 2000586 Rev. B...

  • Page 109: Hardware Specifications

    Hardware Specifications Locating DeviceMaster LT Specifications Specifications can be found on the Comtrol web site. External Power Supply Specifications This subsection discusses information that you may need if you wish to use your own external power supplies. This table provides specifications for the power Screw Terminal Connector supply shipped with the DeviceMaster LT.

  • Page 110: Notices

    This device must accept any interference received, including interference that may cause undesired operation. Modifications (FCC Changes or modifications to this equipment not expressly approved by Comtrol 15.21) Corporation may void the user's authority to operate this equipment. Serial Cables (FCC This equipment is certified for Class A operation when used with unshielded 15.27)

  • Page 111: Troubleshooting And Technical Support

    Troubleshooting and Technical Support This section contains troubleshooting information for your DeviceMaster LT. You may want to review the following subsections before calling Technical Support because they will request that you perform many of the procedures or verifications before they will be able to help you diagnose a problem.
  • Page 112 Troubleshooting Checklist • If using a driver for Windows, you can use one of the Comtrol tools. Advanced tab in the Comtrol Drivers Management Console which helps identify problems. PortVision DX contains two applications that can be used to test or...

  • Page 113: General Troubleshooting

    Ethernet hub the device directly to the NIC in the host system. Cannot ping or connect The default DeviceMaster LT IP address is often not to the DeviceMaster LT accessible due to the subnet masking from another network unless 192.168 is used in the network.
  • Page 114 The above process fails when STA is running because the switch blocks packets for 30 seconds after the DeviceMaster LT reboots. Therefore, the ID query is not received by the DeviceMaster LT and after 15 seconds the device loads SocketServer. After 30 seconds, NS- Link finally can do an ID query, which reveals that the device is not in RedBoot.

  • Page 115: Testing Ports Using Port Monitor (Pmon2)

    Testing Ports Using Port Monitor (PMon2) Testing Ports Using Port Monitor (PMon2) You can use this subsection to test the DeviceMaster LT driver installation. If you need to install the device driver, locate the latest driver and driver installation documentation.
  • Page 116 Testing Comtrol COM Ports 4. Click Driver, click RPSHSI/NSLINK. 5. If the DeviceMaster LT is communicating with the device driver for Windows, Port Monitor should display CLOSED status. If a port is open for an application, it displays as OPEN, and displays Actual Throughput, TxTotal and RxTotal statistics.
  • Page 117 To do this, select one of the following save options: • File > Save As • File > Save - if the report already exists in an older format • button Save Active Session DeviceMaster LT User Guide: 2000586 Rev. B Troubleshooting and Technical Support - 117...

  • Page 118: Testing Ports Using Test Terminal

    RS-422 or RS-485 this test will fail and is expected to fail since RS-422 and RS-485 do not have the modem control signals that are present in RS-232 for which this test is designed. DeviceMaster LT User Guide: 2000586 Rev. B 118 - Troubleshooting and Technical Support...

  • Page 119: Opening Ports

    2. Start Test Terminal (WCom2). If necessary, start PortVision DX from the Start menu, select Programs > Comtrol > PortVision DX > PortVision DX or click the desktop shortcut.

  • Page 120: Loopback Test (Rs-232)

    This is a pass fail test and will take a second or two to complete. Repeat for each port that needs testing. If the Loopback Test and the Send and Receive Test Data tests successfully complete, then the port is operational as expected. DeviceMaster LT User Guide: 2000586 Rev. B 120 - Troubleshooting and Technical Support...

  • Page 121: Sending And Receiving Data (Rs-485: 2-Wire)

    2. Open two ports RS-485 ports. This example uses COM40 and COM41. Test Terminal will open two windows, note that both ports show Receiving on the status bar. DeviceMaster LT User Guide: 2000586 Rev. B Troubleshooting and Technical Support - 121...
  • Page 122 3. Right-click in both COM windows and remove the check mark for Receive. Both COM ports show Ready on the status bar. 4. Right-click in ONE window and select the Receive option from the pop up. DeviceMaster LT User Guide: 2000586 Rev. B 122 - Troubleshooting and Technical Support...
  • Page 123 The Status line shows Sending or Receiving in the reverse windows. Data is now scrolling in the COM40 window. COM41 is static as it is not receiving data but transmitting data. DeviceMaster LT User Guide: 2000586 Rev. B Troubleshooting and Technical Support - 123...

  • Page 124: Socket Mode Serial Port Testing

    Installing PortVision DX on Page 15 and scan the network to locate the DeviceMaster LT that you want to test. 2. Right-click the DeviceMaster LT and click Webpage. 3. Scroll to the bottom of the home page and click Reboot.
  • Page 125 8000. 7. Scroll to the bottom of the page and click the Save button. 8. Click Ok when the Port Configuration Updated page appears. DeviceMaster LT User Guide: 2000586 Rev. B Troubleshooting and Technical Support - 125...
  • Page 126 Connecting Serial Devices on Page 65 if you need to build a loopback plug. 12. Right-click the DeviceMaster LT in the Device List pane and click Telnet / SSH Session. DeviceMaster LT User Guide: 2000586 Rev. B 126 - Troubleshooting and Technical Support...
  • Page 127 14. Type 123. If 112233 displays, you need to disable local echo. Use the following steps to disable local echo. a. Go to c: \Program Files (x86)\Comtrol\PortVision DX. b. Execute PUTTY.EXE to open the application. DeviceMaster LT User Guide: 2000586 Rev. B...
  • Page 128 Click Cancel to close PuTTY. Close the telnet (PuTTY) session that you opened from PortVision DX. g. Re-open the telnet session by right-clicking the DeviceMaster LT, and select the Telnet / SSH Session option. h. Enter the Socket Port number and then click Ok.

  • Page 129: Devicemaster Lt Leds

    18. Remove the loopback plug from the serial port and attach your serial device. You may need to set the serial parameters as necessary to match your attached equipment. DeviceMaster LT LEDs The DeviceMaster LT has network and port LEDs to indicate status. This subsection discusses: • TX/RX LEDs •...

  • Page 130: Network And Device Leds

    PortVision DX, you can check the DeviceMaster LT status on-line. • If the Status LED on the DeviceMaster LT is lit, it indicates the DeviceMaster LT has power and it has completed the boot cycle. The Status LED flashes while booting and it takes approximately 15 seconds for the Bootloader to complete the cycle.

  • Page 131: Removing Devicemaster Lt Security Features

    Removing DeviceMaster LT Security Features When presented with a DeviceMaster LT that has had all security options set and the user is unaware of what the settings are, the restoring of a DeviceMaster LT can be very difficult. It may be necessary to use the DeviceMaster LT debug dongle provided with the...
  • Page 132 Installing PortVision DX on Page 15. 11. Open PortVision DX. 12. Scan the network so that PortVision DX discovers the DeviceMaster LT. 13. Right-click the DeviceMaster LT and then click Telnet/SSH Session. DeviceMaster LT User Guide: 2000586 Rev. B 132 - Troubleshooting and Technical Support...

  • Page 133: Returning The Devicemaster Lt To Factory Defaults

    17. Enter securedata disable and press Enter. Returning the DeviceMaster LT to Factory Defaults The DeviceMaster LT uses two types of memory, volatile and non-volatile. The volatile memory is in the form of DRAM and SRAM. They are used for program execution and buffers.

  • Page 134: Clearing The Flash

    The flash only has program binaries. There is no user data stored in the flash. If it is necessary to erase the binaries, the default application (SocketServer.bin) can be erased using the fis init command from the DeviceMaster LT using a serial connection, that is Port 1 through a null-modem cable and a COM port.

  • Page 135: Serial Port Access

    Page 106 or Telnet Access on Page 134. 1. Open your web browser and enter the IP address of the DeviceMaster LT. 2. Click the Security tab: a. Verify that the Enable Secure Data Mode option is not checked.

  • Page 136: Technical Support

    Click Save. Click OK when reminded it is necessary to reboot to take effect. The DeviceMaster LT reboots. When it starts running, everything will have been returned to factory default values.If you choose to verify the values, the IP address has been reset to 192.168.250.250.

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