Instrument properties
  


By choosing Edit/Properties for instrument window, you will be able to set some of the following instrument properties:


graphic

Type: There are 2 types of instruments:

·     Circle with classic round scale
·     Non-graphic, with numeric value only

Modify instrument value: You can define coefficients to modify the instrument value after calculation. It is useful if you need a calculation slightly different than the one included in SIGVIEW , for example if the unit you would like to use needs some scaling. You can define both add (A) and multiply factors (B). The resulting instrument value will be calculated from the originally calculated value by using the following expression: NewValue = A + B*OriginalValue.

Range: Value range for instrument scale

Units: Units for instrument value (Volt, meter, etc. )

Show signal marker: This option is available only for At..., Maximum, Minimum, Maximum position and Minimum position instruments. If you turn it on, a marker will appear in the origin signal, showing exact position for the value shown in instrument. You can define the content of the marker by changing its text, or turning X/Y value display in the marker.

Critical value range: You can choose value range which represents the “red zone”. It will be marked red on the instrument. By choosing Outside option in the radio box you will invert the selection, i.e. all values outside that range will be marked red.

Play sound on critical value: SIGVIEW will play a single beep when the value is in a critical zone.

Execute this application on critical value:  You can enter complete path of an external application to be executed if the value is in a critical range, i.e. if value of the instrument enters “red-zone”. You can also define how often this application will be called. SIGVIEW will execute defined application and pass current instrument value as a parameter to it. For example, if your application is “C:\MyLogger.exe”, and value of 45.4432 causes alarm to goes off, SIGVIEW will call “C:\MyLogger.exe 45.4432”. This function can also be used to simply log analysis values outside SIGVIEW in some regular intervals.

As an example for the external application, SIGVIEW distribution includes “Logger.exe” application. You can simply copy this file from SIGVIEW installation folder to some other folder and enter its path to the instrument dialog. Logger.exe will log the values passed from SIGVIEW in a TXT file with the name SIGVIEWLog_<current date>.txt in its working directory.
 
Another example for such external application is ULDigital.exe, also included with SIGVIEW installation. This application can control digital outputs on devices compatible with Universal Library from Measurement Computing(R), i.e. can turn external devices on or off. There are following command line options: ULDigital.exe <duration in ms> <digital output>.
where <digital output> should corresponds with UniversalLibrary's FIRSTPORTA, SECONDPORTA,... values. For example, on PMD devices these values are 10,14,18,... for channels A0, A1, A2,... This application requires that Universal Library driver is installed.
Instrument properties