Use the SNRSimulator to simulate values of global secure parameters located in workstations that are not present in the simulated system. This is useful if you have completed configuration of a portion of your safety system logic and need only to simulate secure parameter values from logic solvers assigned to other workstations that do not currently exist.
The left pane of the SNRSimulator lists the global slots (33 through 64 for Domain Globals, 65 through 80 for System Globals) that communicate global secure parameters. Two additional columns indicate which slots (if any) contain high-density secure parameters and if simulation is enabled for a slot.
The right pane of the dialog is initially empty. Click a global slot in the left pane and the right pane is populated with the current values for the global slot's parameter slots. To change parameter slot values, status, and revision, right click in the right pane to open the data entry dialog.
Note The SNRSimulator must remain open during the simulation. If you close the simulator all simulated parameter values return to their defaults.
The dialog includes a read-only field that indicates the global slot whose parameter slots you are setting. Use the two checkboxes in the dialog to enable simulation for this global slot and to simulate high-density secure parameters.
If the Enabled checkbox is not selected, any simulated secure parameter from this global slot has a status of BadNoCommLUV.
If you enable high-density parameters, the number of parameters in the dialog increases to 16.
Note Because the valid range of status and revision values for secure parameters depend on whether the parameters are high density or not, it is recommended that you verify all parameter status and revision values after selecting or deselecting High-Density Parameters.
The dialog contains three data fields for each of the secure parameters in the selected global slot. The valid values for two of the fields depend on whether the parameters are high density:
Secure Parameter Field |
Description |
|
Secure Parameters |
High-Density Secure Parameters |
|
| Value | False or True | |
| Status |
Bad BadNotConnected GoodNonCascade |
Bad GoodNonCascade |
| Revision1 | 0 through 7 | 0 through 3 |
Notes:
The revision must match the number shown for this secure parameter's slot revision in the Global Secure Parameter References dialog. If the revisions do not match, the status of the parameter reference is ConfigErr. (The slot revision changes when a secure parameter is renamed or deleted and re-added to a module.) |
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