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Problems While Using SD-300/SD-310AN

This page explains the troubleshooting procedures to resolve problems you may experience while using SD-300/SD-310AN.



Serial devices are not displayed or temporarily displayed in SX Virtual Link for Serial Device Server.

If serial devices are not displayed in SX Virtual Link for Serial Device Server, you need to check the cable connection as well as the network settings between SD-300/SD-310AN and your PC.

Solution Please check the LED status of SD-300/SD-310AN and the Ethernet Hub SD-300/SD-310AN is connected to. If the LED indicates improper status, replace the AC plug and other cables, and reboot the connected devices.

Solution It takes up to 30sec for SD-300/SD-310AN to get ready after it is powered on.
Please wait until SD-300/SD-310AN becomes ready, and then click the Refresh button in SX Virtual Link for Serial Device Server again.

Solution Please add SX Virtual Link for Serial Device Server to the exception list in your security software. Please refer to the FAQ on our website ( http://www.silexamerica.com/ ) for details on adding an application to the exception list.

Solution First, check the IP Address of your PC.
To check the IP Address, use the Windows Command Prompt.
  1. Select Start - All Programs - Accessories - Command Prompt.
  2. When the Command Prompt is started, execute the ipconfig command.
Example of executing the ipconfig command
Microsoft Windows [Version 6.0.6001]
Copyright (C) 2006 Microsoft Corporation. All rights reserved.

C:\Users\username>ipconfig (Press Enter)

Windows IP Configuration


Ethernet adapter Local Area Connection:

        Connection-specific DNS Suffix  . :
        IPv6 Address. . . . . . . . . . . . : XX:XX:XX:XX:XX:XX:XX:XX
        Temporary IPv6 Address. . . : XX:XX:XX:XX:XX:XX:XX:XX
        IPv4 Address. . . . . . . . . . . . : 192.168.20.10   (IP Address of PC)
        Subnet Mask. . . . . . . . . . . . : 255.255.255.0
        Default Gateway. . . . . . . . . :

C:\Users\username>
Check that the IP Address of the PC is a proper address for communicating with the IP Address of SD-300/SD-310AN.
If the PC and SD-300/SD-310AN are in the same network segment but use a different network number in their addresses, you need to change either the address of the PC or SD-300/SD-310AN. Also, if there is a router between the PC and SD-300/SD-310AN, check that the default gateway address is properly configured.

Solution First, turn off SD-300/SD-310AN and open the Windows Command Prompt.
Ping the IP address of SD-300/SD-310AN.
  1. Select Start - All Programs - Accessories - Command Prompt.
  2. When the Command Prompt appears, execute the ping command.
Example of executing the ping command when the IP address of SD-300/SD-310AN is 192.168.20.20
Microsoft Windows [Version 6.0.6001]
Copyright
(C) 2006 Microsoft Corporation. All rights reserved.

C:\Users\username>ping 192.168.20.20 (Press Enter)

Pinging 192.168.20.20 with 32 bytes of data:

(When there is a reply)
Reply from 192.168.20.20: bytes=32 time<1ms TTL=128
Reply from 192.168.20.20: bytes=32 time<1ms TTL=128
Reply from 192.168.20.20: bytes=32 time<1ms TTL=128
Reply from 192.168.20.20: bytes=32 time<1ms TTL=128

(When there is no reply)
Reply from XXX.XXX.XXX.XXX: Destination host unreachable.
Reply from XXX.XXX.XXX.XXX: Destination host unreachable.
Reply from XXX.XXX.XXX.XXX: Destination host unreachable.
Reply from XXX.XXX.XXX.XXX: Destination host unreachable.

If there is a reply while SD-300/SD-310AN is turned off, it means there is another network device using the same IP address as SD-300/SD-310AN. In such a case, change the IP address of either SD-300/SD-310AN or the other network device.

Solution Please check that the serial cable is properly plugged into SD-300/SD-310AN and the serial device. If you have a spare serial cable, replace the cable.

I cannot communicate with a serial device.

If you cannot communicate with the serial device connected to SD-300/SD-310AN, you need to check the communication settings on SD-300/SD-310AN and the serial communication software.

Solution Please check that the serial cable is properly plugged into SD-300/SD-310AN and the serial device. If you have a spare serial cable, replace the cable.

Solution When you are using SX Virtual Link for Serial Device Server to communicate with a serial device, the serial communication settings may differ between the serial device and serial communication software. If the serial communication settings are different between them, you may not be able to communicate with the serial device. Also, output serial data may not be transferred correctly.
Check the settings on the serial communication software and match it with those used in the serial device. For details on how to change the settings on your serial communication software, refer to the operation manual that came with it.

Solution If you are using Ecable Mode or Raw TCP Connection Mode to communicate with a serial device, the serial communication settings may differ between SD-300/SD-310AN and the serial device. If the serial communication settings are different between them, you may not be able to communicate with the serial device. Also, output serial data may not be transferred correctly.
You can change the serial communication settings of SD-300/SD-310AN from the Web page. For details on how to change the settings on the Web page, refer to Configure Serial Port Settingsor Configuration Item List - Serial Port Configuration.

Solution In Ecable Mode, two SD-300/SD-310AN's must be configured with the proper IP addresses to communicate with each other, and the same TCP port number should be used for both. If these settings are different between them, serial communication may fail due to a network connection not being established.
For detailed settings to use SD-300/SD-310AN in Ecable Mode, refer to Ecable Mode (Link to the Registered Device) - 2. Before You Begin.

Solution In Raw TCP Connection Mode, SD-300/SD-310AN and the application program should be configured with the same TCP port number.  If this setting is different between them, serial communication may fail due to a network connection not being established.
For detailed settings to use SD-300/SD-310AN in Raw TCP Connection Mode, refer to Raw TCP Connection Mode (Link to Serial Device Using TCP Raw Port) - 2. Before You Begin.

SD-310AN turns on in a wireless LAN mode although it is connected to a wired LAN using a network cable.

Solution Extend the amount of time to recognize a wired LAN so that SD-310AN can turn on in a wired LAN mode.
The instructions below provide an example of how to set "5 sec" for the amount of time to recognize a wired LAN.

Access the SD-310AN Web page and click WEB console from the left menu.
Enter the SET NW STARTDELAY 5 to the field and click Enter.

Enter SAVE to the field and click Enter.
To check the setting, enter SHOW NW STARTDELAY to the field and click Enter.
The current setting is displayed.

When the configuration is completed, click Restart under Maintenance to restart SD-310AN.


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