Evidence

This information is specific to the latest release of PARCview:

7.2.x

This Evidence tab in System Configuration is used to configure “evidence” in the form of tag data or user input that may be assigned to an alarm event. For example, an aggregated value of the evidence tag over the duration of an event can be attached to the event, such as the average value of a machine speed tag during a slowdown event. Once the Evidence Class has been configured on this screen, it must be associated with one or more reasons in the reason tree before it can be assigned to an event.

PARCSecurity Permissions

PARCsecurity Console has permissions to control access to the Evidence tab in System Configuration.

• System Config Reason/Evidence/Category: Grants Access to the Reas, Evidence, and Category tabs in the System configuration.

Configuration

Configuration of Evidence is handled in the System Configuration, on the Evidence Tab.

• Evidence Class: Name of the set of values from which Evidence can be selected on the Alarm Reasons tab.
• Allow Multiple: Allows multiple items from the Evidence Class to be selected when assigning a cause.
• UTag: The tag for which values will be captured for the Event. If no UTag is specified, use the Evidence Value column to enter possible values.
• UTag Data Mode: The aggregate that will be displayed by the evidence tag.
• Time Average: The time-average of the data during the event.
• Start: Value at the start of the event.
• End: Value at the end of the event.
• Count: The number of data points during the event.
• Delta: The change in the value from the first event to the last event.
• Maximum: The maximum value during the event.
• Minimum: The minimum value during the event.
• Time Average 2: Same as Time Average but does not carry last known good quality point forward across bad quality interval.
• Range: The difference between the raw maximum and the raw minimum values in the interval.
• Reg Dev: Retrieves the standard deviation of the regression line over the interval.
• Reg Slope: Retrieve the slope of the regression line over the interval.
• Total: The time average multiplied by the number of seconds in the interval.
• Sum: The sum of all the data points during the event.
• Variable Name: This is used for production reporting. It is a way to give different variables a common name for reporting. For instance, if several rows are given the same name, the event data can be sorted and displayed with “Variable Name” as grouping criteria.
• Sort Order: If there are multiple evidence classes assigned to the event, this determines their sort order on the evidence panel.
• Format Mask: Format mask for evidence UTag values. Use zeroes for forced digits and pound signs for unforced digits. For example, “0.##” would always show a value in the ones place and show values up to two places after the decimal, if they are non-zero.
• Evidence Value: If no UTag is specified, a picklist for the Evidence Class (row). Each Evidence value will be an option for the picklist. Used to separate evidence classes into different types.

Log Files

PARCmessage is a built-in error monitoring software. It creates an ongoing log of errors generated from PARCview on the specific computer where PARCmessage is running in the system tray. The Icon in the tray is a triangle, red if errors are present, and green if there are no errors.

Errors can also be stored in the PARCview install directory both on the server and clients ...\Capstone\PARCView\LogFiles.

Required Server Applications

No server applications are required to use Evidence Tab.

UA Server: All PARCview vr 7 functionality requires a Universal Access (UA) server.

GDS: All PARCview vr 7 functionality requires a Global Discovery Server (GDS).