Grid Connect

Get answers to our most frequently asked questions about our Ethernet Sensor Products.

  • 1. Why am I unable to set the IP address on the device using the IPSet utility provided on the help CD?



    The power to the sensorProbe may be lost. Check the red LED. It should be steadily lit.

    The device is not hooked up properly with the LAN/network/Patch cable. Check the green LED. It should be steadily lit.

    The PC used to configure the sensorProbe is on a different subnet than the device. Note: IPSet.exe will not work across routers. It will work across switches and hubs.

    Try to connect a crossover cable from a computer directly to the sensorProbe. This is the recommended method to set up the sensorProbe.
  • 2. How do I reset a Bellon MON Apartment Unit Intercom?



    Hold down all 4 buttons and power up again.
    Wait for 2 rings.
    Default ip address is 192.168.0.250.
  • 3. What is the default IP of the device?



    The default IP assigned at the factory is: 192.168.0.100
  • 4. If the IPSet fails, is there any other method of assigning the IP Address?



    Yes, the following steps will help in setting up the IP address.
    Find out the IP address of your network adapter by entering the command "ipconfig" at the command prompt.
    Add the IP address of the sensorProbe to the routing table by entering route add 192.168.0.100 x.x.x.x, where x.x.x.x is the IP address of the network adapter
    Add an entry to the ARP table by entering: arp -s 192.168.0.100 xx-xx-xx-xx-xx-xx, where xx-xx-xx-xx-xx-xx is the MAC address of your sensorProbe.
    Ping 192.168.0.100 with a buffer size of 89 bytes. (Ping -l 89 192.168.0.100). If the unit replies and the ping works, then open up a web browser and navigate to the web interface of the device by typing the IP of the device into the browser.
  • 5. Can I use the default IP of the device to access the web interface and later assign the desired IP?



    Yes, you can access the web interface by entering the IP 192.168.0.100 in your browser.
  • 6. I am able to ping the device IP, but I am not getting the web interface when I enter the IP in the browser?



    The proxy settings of the browser may be preventing the access to the device. Please disable the proxy settings to access the web interface.
    You have updated the micro code of the firmware, but you have not updated the html code. Html code updates have to be done after the micro code update is done.
  • 7. Where can I find the MAC address of the device?



    The MAC address of the device can be found on the bottom cover of the device on the web interface under Network page.
    When using IPSet in Automatically Get MAC mode
  • 8. Where can I find the mib file for the device?



    The mib file for the device can be found in the help CD, under the directory: \akcp_utilities\mib\
  • 9. I cannot set the device to send mails?



    - The SMTP server entered is wrong.
    - The send mail option is not enabled in the Mail settings page.
    - The timeout period entered is too low.
    - The gateway IP is not entered in the network page
    - The mail from address is not set
    - The mail server is not responding
    - The mail from address is not validated in the mail server
    - The mail server settings prohibit it from accepting connections form the device IP<
    - The firewall in the network is preventing the SMTP traffic.
  • 10. I cannot login to the device.



    The password entered is wrong.
    The password has been changed by another user.
  • 11. I’m not able to change the settings in the device.



    You have logged into the device as a user. Only an administrator can make changes to the settings.
  • 12. How can I recover a lost password?



    You need to contact Grid Connect at techsupport@gridconnect.com with the MAC address of your sensorProbe.
  • 13. The device is not able to send Traps.



    The destination TRAP IP is not set in the TRAP settings.
    The community string is wrong.
    The firewall is blocking the TRAP traffic.
    The send Trap option is Off.
  • 14. I have HP OpenView, but I’m not able to receive the Traps.



    For changing the Traps to HP OpenView style, you need to send an SNMP command to the device given below:

    snmpset .1.3.6.1.4.1.3854.1.2.2.1.60.0 i X Where IP is the IP address of the sensorProbe. Community default is "public". and X can take 3 values: 1 (WhatsUP gold style), 2 (HP OpenView Style), 3(both Style). By default, the X value set is 1.
  • 15. I have assigned the gateway IP, and when I save the settings, it reverts back to the default IP.



    This happens when the device is not able to find the IP entered. When a gateway address is entered, the device searches for that host. If it finds that host, it will accept the IP entered. If that host does not respond, it will revert back to the default IP.
  • 16. I own a sensorProbe8-X20 and would like to input voltage to those 20 extra dry contact switches. What is your recommended voltage value that I can put on the dry contact so that I will not burn the system?



    I assume that you are using an opto-isolated type of the dry contacts since there is no need to input voltage to the dry contacts that are configured as non-isolated. The dry contacts are designed to have the current on LED in range of 5 to 27mA with 680ohm resister connected internally. The input voltage is then ranging from 5 to 20Volts. So, the maximum voltage that can be put on the dry contact is 20 Volts. This is true for both sensorProbe8-X20 and X60.
  • 17. If I need to input more than 20 Volts to the dry contacts, what is my option to do that? And, what will happen if I put a voltage on the dry contact that is configured to be non-isolated?



    Assume you want to input 48V to the dry contacts whether it is opto-isolated or not, you can connect an external resistor at the input pin of the dry contacts. This external resistor will be serial to the 680ohm internal resistor. Let's allow 10mA current to flow in to the LED of the opto; thus, the external resistor value is (48V/10mA) - 680ohm = 4120ohm. A more common value would be 4.7Kohm.

    If 4.7K is used, there exist the current of (48V/5380ohm) = 9mA. The power on the resistor is about (9mA)^2 * 4.7K = 0.38 watts. Thus, the 0.5 watt resistor should be enough. To conclude, putting the external resistor at the input pin of the dry contacts will help prevent the resistors on the board to burn out even though the circuit is not opto-isolated and some voltage is put on the input of the dry contacts.
  • 18. I need to know if a sensorProbe8-X20 is in a site or not. That is, when a long time has passed and no TRAP has been received, how do we know if it is because there is no problem or because the link is off?



    You can also use the traps to provide, as something called a system heartbeat. To do this you can configure an unused dry contact input. Place it into an alarm state. Configure traps to be resent every a certain period of time (for example, 10 seconds). This should provide you with the heartbeat that you need.

    Please note that traps are not guaranteed to be delivered. So they can be lost in transmission without any error indication. On big network management installations traps and polling are used in combination. Traps are used to provide an immediate notification of a problem and also to reduce network traffic. The traps are then combined with periodic polling of the sensors, but at a less frequent rate in order to reduce network bandwidth utilization.
  • 19. I am sure that all settings for the Digital Voltmeter sensor are correct, but it seems to have error in the reading. How can I correct this error?



    The Digital Voltmeter and 4-20mA sensors have an input as analog signal which will be converted to digital using an A/D converter. Normally, the A/D converter is calibrated in production process. But, you also can do it by following the steps below.

    On the web interface, turn off an Autosense for port#1. To do this,

    1. Go to the Sensor setting on the web interface by clicking on a "Sensor" tab.
    2. On the bottom of the left side menu, click on "Autosense".
    3. Select "Disable" for the port# 1. Then, click "Save".

    Connect 1.25VDC to RJ45 port# 1. The 1.25V is the voltage across pin 7 and 8 of the cable plugged into the RJ45 port.

    Set a Digital Voltmeter sensor online on this port. We only focus on a Raw Analog, so you do not need to change any settings.

    Go to the setting page of the DC sensor at port# 1. Select "Online" for Go Online/Offline field. Then, click "Save".

    Run snmpset command as snmpset <IP> <community> .1.3.6.1.4.1.3854.1.2.2.1.80.0 i 0
    Replace <IP> with the IP address of your sensorProbe, and <community> with the administrator password.
    The raw analog reading from the web interface should read 500 (+/-5).

    Please note that all RJ45 ports use the same A/D converter. Therefore, the calibration on any port will also have an effect for other ports. And, an error for each sensor is different due to components (e.g. resistors, capacitors) on the sensor. So, it is possible that the same input value will not be read the same for different sensors on the same sensorProbe.
  • 20. I just finished a calibration process, but the reading is still a little bit off. Is there any way to fine tune the reading?



    In the calibration process, we set the offset of the reference voltage so that the raw analog read 500 when the input to the RJ45 port is 1.25 volts. However, the sensor that you are using may still have error due to some components (e.g. resistors and capacitors). Run snmpset command as:

    snmpset <IP> <community> .1.3.6.1.4.1.3854.1.2.2.1.96. <port-1> i <offset>

    Where <IP> is the IP address of your sensorProbe.
    <community> is the administrator password.
    <port-1> is the port number where the sensor for which you want to adjust the offset is plugged in.
    <offset> is the offset value. It should be in a range from 485 to 515.
  • 21. Your AC voltage detector can only sense the presence of the voltage. Do you have an AC voltage sensor that can measure the voltage and display the value on the web interface similar to the temperature or humidity sensors?



    You will need an external AC voltage sensor/transducer. Then, you can integrate it with the sensorProbe via a Digital Voltmeter sensor or a 4-20mA voltage sensor. Therefore, please make sure that the AC voltage sensor/transducer have an output as either Digital Voltmeter or 4-20mA.

    The output of the AC voltage sensor/transducer should be linearized to work best when integrated with the sensorProbe. There is a custom setting section on the Digital Voltmeter and 4-20mA sensor web interface where the unit of a measured entity (AC voltage in this case) can be customized to any text such as "V(rms)" for measuring the RMS voltage.

    Note: some sensor/transducer may need a power supply which you have to provide as well.
  • 22. How can I add software to the sensorProbe8Linux or the cameraProbe8?



    You can extend the software set on the sensorProbe8Linux or the cameraProbe8.. Nagios is one of many programs that we port, for instance. We also port RRDTool which is a data logging and graphing tool and integrate it to display a graph for our sensors data. On the Summary page of your device, click on "View Graph" of any sensor; then, you will see RRDTool graph there.

    The root file system is read-only; therefore, you will need to copy them to a user partition which is editable.

    1. Create a copy of configuration files for Nagios: The place where you can write (create directories and files) is in "/flash1/user" directory. I would recommend you create a directory for all Nagios configuration files as "/flash1/user/nagios/etc"
    #/ mkdir -p /flash1/user/nagios/etc

    2. Then, copy all files from "/usr/nagios/etc" to "/flash1/user/nagios/etc"
    #/ cp /usr/nagios/etc/* /flash1/user/nagios/etc/

    3. Edit configuration files: You can now edit the configuration files to the way you would like the Nagios to work. You can use "vi" on the sensorProbe8Linux/cameraProbe8 to edit the files.

    4. You also need to modify the files "nagios.cfg" and "cgi.cfg" since some entries inside these files refer to the path "/usr/nagios/etc" instead of "/flash1/user/nagios/etc".

    In "vi", you can use the following command to replace all entries.
    :%s;/usr/nagios/etc/;/flash1/user/nagios/etc/;g

    5. Start Nagios: the script that is used to start Nagios is also in read-only partition.

    6. You then need to create a file "/flash1/user/etc/nagios" and add the line "NAGIOS_CFG=/flash1/user/nagios/etc/nagios.cfg" to this file and save it.

    7. Then, on the web interface, check the box in front of Nagios on the "System Setup" page and click "Save". The Nagios web interface is integrated to the "Application" tab. The username and password are fixed. The username is "nagiosadmin", and the password is "admin".
  • 23. How much sensor data can be stored on the SP8L?



    There are two modes of data storage/graphing on the sP8L: RRD and JavaScript.

    If JavaScript graphing is used, the device has enough memory to save 8,640 data points for each sensor. This corresponds to 90 days at a frequency of 15 minutes, or 6 days at a frequency of 1 minute.

    35,040 data points for each sensor can be stored in the RRD Tools database. If data is recorded every 15 minutes, then there will be enough data to display measurements for up to 1 year. Besides the increased data capacity, RRD is a highly versatile memory storage tool.

    Graphs can be plotted by the RRD Tool, into the web-based user interface. The individual graph (day, week, month, and year) for each sensor type can be customized, simply by modifying the script template used to generate a particular graph.

    On our Linux devices, the flash partition for sensor data / graph storage is 32Mbytes. We cannot change this until we start shipping with larger flash. That will probably happen in a month or so - we are currently in the process of upgrading the CPU / Flash board on the sP8L.

    Because each temperature sensor connected to our Linux devices is given its own unique OID (Object Identification) on the network, you can also use a freeware MRTG program to graph the temperatures on a PC or remote website. The MRTG tool will poll the sensors OID's and store the data in a graph. In this way you could expand the memory for data storage indefinitely. We can help you to set up your MRTG tool, and provide simple scripts to help you get started.
  • 24. Can I use custom DC or 4-20mA sensors?



    Our product has ability to integrate with custom sensors via our Digital Voltmeter sensor or 4-20mA sensor. For integration with custom sensors, the unit text can be customized to whatever you would like; this text is reflected on the summary page of the web interface. All numbers are displayed in decimal format.

    On the DC and 4-20mA sensor configuration pages, you can display readings either as absolute values or as a percentage of full scale; you can customize a unit for measured entity. The external sensor used should have an output as a linearized Digital Voltmeter or 4-20mA signal

    We suggest you find sensors that will best suit your requirements, and then we will make sure they can integrate with the SP2.

    For example we have customers that use our Digital Voltmeter sensor to integrate pressure sensors and water salinity sensors. We even have customers measuring radiation using our sensorProbes. The user can easily input their own labels and output value scales. If you label the sensor output as MPa, sensor values will appear on the summary page and in emails as MPa. You can configure the scale to be absolute such as 0-100 VAC or a percentage such as 0-100%. The data stored and graphs plotted on the sensorProbe will also have the correct labels and scaled units.
    Note: Emails and SMS will also be displayed in the configured units at the correct scale.

    4-20mA signals are very popular in industrial sensors, and are particularly resistant to interference from electromagnetic noise.
    Note that some sensors and transducers may require an extra power supply, and in some cases may need other electrical components.
  • 25. Can I adjust the sensitivity of the motion detector?



    You can adjust the sensitivity of the motion detector using the sensor status filter.

    The sensor status filter allows you to enter a time delay that must occur before the sensor changes status - thus filtering out noise in the signal. This avoids unnecessary sending of notifications, as fluctuations can occur during normal working conditions.

    To find this, go to the Motion Sensor Settings page of the web interface, and click on the sensor status filters button. Change the "Continuous time (secs) sensor is <Normal / Critical> to report" field to some value other than zero. I suggest 1.
  • 26. What is the accuracy of a 4-20mA converter?



    The accuracy of our 4-20mA converters is 2%.
    The resolution of our 4-20mA converters is 0.1mA.

    You can use these figures in conjunction with your sensor's accuracy to find the overall precision of your readings.
    You can also calibrate the 4-20mA converter.
  • 27. What are the supported mobile phones and GSM modems?



    Tested mobile phones:
    Serial Connection (COM1): Sony Ericsson T68i, T610.
    Bluetooth: Sony Ericsson T68i, T610; Nokia Series 30, 60.

    Tested GPRS modems:
    iTegno 3232E/3232I
    iTegno 3800 (No voice support)
  • 28. What are the supported voice modems?



    The DLink DFM560E and DFM562E, Longshine LCS-8560C have been tested and are known to work for voice call notifications.
  • 29. Which USB Bluetooth dongles can I use with the sensorProbe8Linux and cameraProbe8?



    The following USB dongles have been tested and are known to work:
    Grid Connect BluePlug GC-BT-BLUEPLUG-V20
    Billionton UBTCR3C1
    LevelOne MDU-0005USB
  • 30. How do I upgrade the firmware on the sensorProbe2 or the sensorProbe8?



    This firmware upgrade is for:
    sensorProbe2
    sensorProbe2-DC
    sensorProbe8
    sensorProbe8-X20
    sensorProbe8-X60

    Instructions:

    1. Download the .zip file and extract its contents to a folder on your computer. The extracted folder should include the following files:

    - IPSetX.X.X.X.exe - this is the program that will load the firmware onto the sensorProbe
    - spX_firmware_DD_MONTH_YY.zip - this file contains the firmware files
    - readme.txt - contains basic instructions

    2. We recommend you connect your computer to you sensorProbe using a crossover cable for the upgrade procedure.

    3. Start the program IPSet

    4. Click the System Upgrade button

    5. Enter the IP address of your sensorProbe

    6. Enter the password for your sensorProbe

    7. Enter the name and location of your firmware file - e.g. c:\akcp\ spX_firmware_DD_MONTH_YY.zip

    8. Click the Update button

    For support, please contact techsupport@gridconnect.com

    Further questions:

    I have downloaded the .zip file. How do I update my firmware?
    Unzip the downloaded file to a folder on you computer, and follow the instructions in this file.

    After installing the updates, do I need to configure anything?
    No. After installing the updates, the device will restart. Historical sensor data will be lost (you can download this data before you begin the upgrade). All configuration settings that you have made (mail settings, sensor descriptions etc) will remain intact.
    On our Linux based products, (cP8, sP8L), there is an option to backup all configuration settings to a file - you can access this option from the settings page. This is for your peace of mind in case of a system crash.

    Will this update erase my existing settings?
    No. Your settings will remain the same.

    Can I perform the upgrade over the internet?
    We recommend you perform the upgrade by connecting your sensorProbe to your PC using a crossover cable.
    However, it is also possible to upgrade the firmware over the internet. It may be slow, and you will need to open up ports on the routers you are using, but it works. There is no special procedure for doing this - simply perform the upgrade in the normal way, using our GUI upgrade tool for the sP2 and sP8, or the upgrade section of the web interface on the Linux based systems.

    The firmware upgrade routine checks the integrity of the uploaded code. We have enough memory on the sensorProbes to store the whole upload code before we do the flash upgrade.

    So if the connection breaks or the data transfer has errors, the flash upgrade won't be started, and the old code will remain functional.

    For linux models of the sensorProbe (sP8L, cP8), we use HTTP (TCP port 80) for firmware upgrades.

    Where can I get more information or help?
    Please send an email to techsupport@gridconnect.com. We aim to answer all support emails within a few hours.
  • 31. Which WiFi Dongles are supported by the cameraProbe8?



    Our sensorProbe8Linux, securityProbe and cameraProbe8 (USB) products support the following WiFi adapters:
    PLANET 54Mbps Wireless LAN USB Adapter (model: WL-U356)
    X-Micro WLAN 11g 54Mbps USB Adapter (model: XWL-11GUZX)

    These WiFi adapters use the ZD1211 chipset, which includes Linux drivers.
  • 32. Which ports are used by the cameraProbe8 to stream video via the Java Applet or ActiveX?



    UDP ports 809, 810, 811 and 812 are required in order to stream video via the Java Applet or ActiveX
  • 33. The image from a connected camera is not displayed on the summary page of the web interface (cP8 and sP8L devices). Why?



    Check that the camera is connected, enabled, and all your cameras use the same video format (NTSC or PAL). To do this, go to the settings tab, click Camera Settings, and then click Advanced Camera Settings. On the page that is displayed, first press the Check Video System radio button at the top of the page. This will scan the device for connected cameras, which may take a few seconds. Once the system has found your cameras, check the Enable Camera box for all the cameras you would like to enable. You can click the Preview button to display the camera image temporarily in a pop-up window. If your cameras are not detected, please send an email to techsupport@gridconnect.com. Please note that all the connected cameras should have the same video format (NTSC or PAL), to ensure the images are displayed correctly.

Grid Connect Helpdesk

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