A Simulation Def enables Guru Browser to export all relevant Guru objects needed for troubleshooting or content transfer. It does this by creating a RiSimulationDef object that references all active instruments in the Cassini configuration.
A simulation does not include the ShortCut used to launch the Cassini software. If the ShortCut was created at the customer site rather than by Roos Instruments, it should be exported separately and included with the email sent to [email protected].
It is important not to confuse a Simulation Def with the RI Cassini Virtual Workstation, which is sometimes informally referred to as "the simulator." While simulations are often created or activated when working within a virtual workstation, the two serve different purposes and are not the same thing.
To Export a Simulation:
- Compile a testplan with all the software definitions active (Fixture def, DIB def, Fixture calibration, Device def, etc).
- From the Cassini main system window, choose System > Equip > Save Sim and choose Yes to confirm. (See Figure 1)
- Enter a relevant value for the Simulation Name? prompt and choose OK. Cassini will create a new RiSimulationDef object in guru.
- Launch Guru Browser from the Apps menu and change Key1 value for ri.sys.ObjClass to RISimulationDef to show all simulations.
- From the list click the 'ri.sys.CreationDate' column header to sort by date and select the item that was just created.
- Export that file to a GZP by choosing Export > Send to Export List from the right mouse button menu.
- Switch to the Guru Export List tab by selecting it on the bottom of the window, and then choose Export button to save the .GZP file to "D:\Shared" or similar directory.
- Send that .GZP file to [email protected] for review, be sure to include the ShortCut name that was used when the problem was encountered.
Figure 1: System > Equip > Save Sim button

Figure 2: Export RiSimulationDef

To Import and Use A Simulation:
- First, import the .GZP with the RiSimulationDef file by choosing Guru Import tab in Guru Browser. (See
Import, Export, & Recover Files with Guru Browser) - Launch the latest Short Cut and wait for Cassini to finish loading.
- Choose System > Test Objects to launch the Test Browser window.
- Choose Object Types from the right mouse button click menu or Objects menu. (See Figure 3)
- Highlight RiSimulationDef in the left most pane and click the target Def from the list on the right to highlight it.
- Choose Activate Latest from the right mouse button click menu. Cassini will activate the Tester, Fixture, DIB, DUT, and DUT Control instruments that were active in the Configuration window at the time it was generated and open the Test Plan Editor window. (See Figure 4)
Figure 3: Test Browser window, choosing Object Types

Figure 4: Activate Latest RiSimulationDef
