UNAP General Setup
General configuration values may be set in the General Setup page. These values differ from the other pages in that the items apply to the UNAP instrument's general operation. Other pages are data or security specific.
Any change MUST be sent to the UNAP instrument by clicking on the Save button.
Identification
|
Instrument ID |
The Instrument ID is displayed on various web pages and will be included in the Data, Log, and SOH files. The user should configure this value to be descriptive of the task the instrument is accomplishing at the current venue. |
| Facility Long Name | The Facility Long Name is displayed on various web pages and will be included in the Data, Log, and SOH files. The user should configure this value to be the formal long name of the venue or facility. |
| Facility Short Name | The Facility Short Name is used to form part of the Data, Log, and SOH file names. It should be limited in length while being descriptive. A shorter short name makes files easier to handle but obfuscates the facility information. For example, using LA for Los Alamos may be sufficient but may be too short and introduce confusion. A better value may be LosAlamos, which is still short but not so long that file names will be hard to understand. |
Operations
|
Run Time |
This value is the duration of each data acquisition. The minimum value is 0.1 seconds and the maximum is 1,000,000 seconds. It is used for both the single acquisition and continuous acquisitions. |
| Totals Sub-Sampling Rate | The eight totals may be sampled more often than is indicated by the Run Time. The Totals Sampling Rate value indicates the total number of samples taken during each Run Time period. The Run Time duration is divided equally to accomplish the higher sampling rate. A sampling rate of 10 results in a total of 10 equally spaced in time samples during the Run Time period. |
| SCA Sub-Sampling Rate | The four Single Channel Analyzers may be sampled more often than is indicated by the Run Time. The SCA Sampling Rate indicates the number of samples during each Run Time period. The Run Time duration is divided equally in time to accomplish the higher sampling rate. A sampling rate of 10 results in a total of 10 equally spaced in time samples during the Run Time period. |
| Acquisition Mode | Two acquisition modes may be selected: Single or Continuous. When the instrument is in Single acquisition mode and the UNAP data acquisition is started, data will be collected for one Run Time period. Totals and SCA Sampling Rate will be collected as configured. When the UNAP is in Continuous mode, after each Run Time is completed, another data acquisition will begin. |
General
|
High Voltage 0 and 1 Voltage and State |
The UNAP has two high-voltage outputs. These
outputs are independently configured and may take any value from -2000 volts
to +2000 volts. The value and the on or off state may be set.
|
| Auto Delete on Copy |
If Auto Delete on Copy is set to Yes, files copied
to the DAS or to a thumb drive will be deleted as soon as the file
has been transferred. If Auto Delete on Copy is set to
No, files will not be automatically deleted on copy.
The result of this setting is that the storage will stay relatively
empty if this parameter is set to
Yes and will stay relatively full if set to
No.
Advantages exist for both configurations. When set to Yes and the files are deleted as soon as copied, the file storage resource is kept as empty as possible--the UNAP instrument has nearly the full file storage resource available at any time. If this parameter is set to No, then files will remain on the UNAP almost indefinitely, being deleted only as space is needed for continued operations. The advantage to No is that even if a file has been copied, the user may copy it again at a later date. |
| Files to delete... |
The Files to Delete when storage is full control may be set
to None, Newest, or Oldest. When set to None, files will not
be deleted automatically. The result of this setting is that
when memory becomes full, the UNAP may no longer collect data.
New data will be lost from this point on until files have been
deleted manually. When set to Oldest and the file storage becomes full, the UNAP is configured to delete the oldest files first, even if the data have NOT been copied to the DAS or a thumb drive. This configuration also is dangerous because deleting the oldest data first could cause a long duration of loss of continuity of knowledge. When set to Newest and the files storage becomes full, the UNAP is configured to delete the newest files first, even if the data have NOT been copied to the DAS or a thumb drive. As with the other settings, this situation also is because deleting the newest files (e.g., yesterday’s) will also generate a loss of continuity of knowledge. However, in this case, the duration of the loss of knowledge will be as short as possible. The UNAP should be installed in an environment where data files are copied to a DAS system or to a thumb drive on a regular schedule so that the File Storage Full situation never occurs. |
| Add SOH or LOG to Data Files |
Adding the SOH and LOG information to the Data files simplifies
the data collector's process because the number of files being
created and copied are cut down by 66% -- if both are set to Yes
then only the Data files will be created. |
| Auto. Transfer to DAS | In a typical configuration the DAS will be configured to query each of the UNAP instruments (along with other instruments) and will ask them to send data. Setting the Automatic File Transfer to DAS to Daily or Hourly will cause the UNAP to push the files to the DAS at the configured time. This process provides a secondary or backup transfer so that the DAS may receive a full and authenticated file. The DAS may compare the file data with data received through the DAS pull mechanism to verify no man-in-the-middle attack has occured. |
| Auto Save SOH Info | Some state of health information does not need to be accumulated at the same frequency as the NDA data (based on the Run Time). For example, there may be no point in collecting the +/- 12 except for once per hour or even once per day. Collecting this type of data too often may accomplish nothing but filling the file storage. |
| Dump to DAS Size | The DAS may request data from the UNAP instrument. The quantity of data sent back upon each request is controlled by this parameter which may be set to a high value (e.g. 9999). Setting it to a low value (e.g. 100) will help the DAS manage network loading. |
| Stream Data to DAS | When the parameter is set to Yes data is pushed to the DAS very shortly after each acquisition. In this case the Dump to DAS parameter will be ignored as data will be sent when available, regardless of how much data is available. This parameter should be set to No when the DAS is configured to poll the UNAP for data. |