Reliability HotWire

Issue 65, July 2006

Tool Tips

* Is there a way to find where a Definition is being used in a RENO project?
The Definitions Report window, accessed by selecting Definitions Report from the Project menu or from the Project Explorer shortcut menu, allows you to view a list of all Definitions in the project, including information on where they are used. The information can be presented either in list form or in a tree view similar to that used in the Project Explorer, depending on whether you select the Report tab or the Tree View tab. Both options are shown next.

 

 

In both views, the Definitions are listed alphabetically; each one is followed by a list of the blocks or Definitions that call it. If the entity using the Definition is a Construct, the Flowchart in which it is located will be noted. If the Definition is used by another Definition, the name of the calling Definition will be followed by the word "Definition." Any unused Definitions are presented in a separate alphabetical list following the usage list.

 

* In BlockSim, how is the sequence of standby units determined?

 

When a container is used to model standby configurations, the sequence in which the standby blocks will be activated upon need is determined by the order in which the blocks appear within the container, checking first across then down. Consider the following example:

 

 

A is the active block, B is the first standby block and C is the second standby block. Therefore, when A fails, B carries on the operation and when B fails, C carries on the operation. Note in the above figure that BlockSim uses [S:1] and [S:2] to indicate the sequence of the standby units.

 

To change the order of the standby units, the user can move the standby blocks around in the following manner:

  • If standby blocks are in the same row, then the blocks that are closer to the left edge of the container will be given priority in the switching to standby units. Note in the next figure how C becomes [S:1] and B becomes [S:2] by placing C to the left of B.

  • If the standby blocks are not in the same row, then the block that is closer to the upper edge of the container will be given a priority in the of switching to standby units. Note in the next figure how C becomes [S:1] and B becomes [S:2] by placing C above B.

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