NOTE 2: Downloading data and recording can not be done at the same time. While downloading data, the writing process to the flash memory will be internally disabled while the data is being read from the memory flash. For small amounts of data to be retrieved (1 Day or 1 Week), this is not a significant interruption in the recording data. However, for large amounts of data (1 Month or 1 Year) it may take 4 to 8 minutes to download the data. In “Archives_Enabled “ mode, charting remains static, while data download is taking place.
NOTE 3: The number of barometric pressure/temperature values that can be recorded depends on the memory flash capacity (2 Mbytes, 4 Mbytes or 8 Mbytes) and number of barometric pressure / temperature values (540,540, 1,081,212 and 2,162,556). The time to fill the memory flash depends on the recording interval time, e.g. 1 minute interval for 4 Mbytes is 1,081,212 minutes or 750 days. If the flash is busy sending data to the applet to chart the archive, the iServer will refuse to initiate a call to provide archived data to the second applet until it has finished with the first one.
NOTE 4: If there is a loss of power while recording the data, the number of data logged can not be stored, therefore having restored the power the logged data will be read from Flash Memory and the number of recorded data will be stored for future use. During this process the LCD will display “Reading Flash”, and if you connect through a web browser the Configuration page will display “Wait Reading Flash”.
NOTE 5: After you “StartRecord” the flash recording followed by clicking the “Update” button, if you then need to make any changes in the Flash Recording section you must either select “StopRecord” followed by clicking the “Update” button or push the reset button on the side of the iServer and reconfigure the Flash Recording section again.
NOTE 6: If you stop the recording prematurely, when you download the data, you will lose the last 256 bytes of the data that was left in the buffer and was not transferred into the flash card. Therefore, we strongly suggest downloading the data while the recording is still on and then stop the recording if desired.
G) Terminal Server
TCP/UDP*: The iServer supports TCP and UDP protocols (default is TCP). If UDP is selected, it can be configured either for Broadcast UDP or Directed UDP. In case of Broadcast UDP, the iServer will transmit the data to every node on the network. This can be accomplished if the Remote IP Address is set to 255.255.255.255.
The Broadcast UDP is a practical solution when one iServer needs to communicate with multiple nodes over the network. In the case of directed UDP, the iServer will transmit the data to a specific node on the network. This can be accomplished if the Remote IP Address is set to the IP address of that specific node.
Server Type: Continuous mode sends the temperature and barometric pressure to the Ethernet every two seconds. It is mainly used to send readings to a remote display. Command mode needs a command to query the iServer to send the reponse back to querying device.
In order to change from one type to another, make sure to close any TCP connections to the sensor. The unit could get locked up if changing the type while
the TCP socket is still open to the sensor. Reseting the power will correct the problem.
Number of Connections: The range is from 0 to 5. If 0 is selected, the Terminal Server feature is disabled. This means that no network connection can be made to the iServer’s sensor. If 1 is selected, only one network connection can be made to the sensor. Any number more than 1 would allow that number of network hosts to read from the iServer simultaneously (default is 5).
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