CHARMs Simulate

Use the CHARMs Simulate application to simulate CHARMs I/O. Before using this application, be sure that each CHARM I/O Card (CIOC) that you wish to simulate is configured for simulate mode, is downloaded, and has one or more defined CHARMs. To configure a CIOC for simulate mode, select the CIOC in DeltaV Explorer, select Properties from the context menu, and enable Simulate CHARMs. Then, download the CIOC's setup data.

The left pane of the Simulate CHARMs dialog lists the CIOCs in simulate mode. Select a CIOC in the left pane to list its CHARMs in the right pane. Double click a CHARM to open a dialog from which you can modify the selected CHARM's pattern, status, and value.

• Pattern - Use this option to turn a waveform pattern (for example, Sawtooth or Square) On or Off for the selected CHARM. The pattern is based on the CHARM's signal type. Note that Pattern must be Off to write a value. When the Pattern is turned on, the CHARM's value increments by 1.
• Status - Use this option to change the selected CHARM's status (Good, Bad, Unknown).
• Value - Use this option to write a simulated value to the selected CHARM. Pattern must be Off to write a value. You cannot write a simulated value to AO and DO CHARMs; values can be written only to input CHARMs that get data from the field.

File menu commands

• Refresh: Updates the list of simulated CIOCs and removes the CIOCs' associated CHARMs from the CHARM list. Select a CIOC to repopulate the list of its associated CHARMs after issuing the Refresh command.
• Save: Saves the Status, Pattern, and Values for the CHARMs under a selected simulated CIOC to an .xml file (filename.csa). It is recommended that you not edit the saved .csa file because reloading an edited .csa file could have unpredictable results.
• Load: Writes the values from the saved file (filename.csa) to the simulated CIOC. Pattern must be Off to write to its value. This command is useful if you want to reload previous values after a download because downloading causes all values to be reset to the default value. This command can also be used during testing if you want to reload the values from a specific test.

Refer to DeltaV Books Online for more information on simulating CHARM I/O.