Setting and Resetting Device Errors

The PowerDesk software communicates with LARA-100 devices in two different ways. Each device is equipped with a DSP processor, to which a serial communication channel is established. A different, simpler and direct communication channel exists between the software and the underlying hardware using designated GPIO lines.

As soon as a connection is established towards a Lara-100 device, PowerDesk software starts polling error GPIO lines in order to detect any hardware-related errors. These errors are of high priority, and their status is always visible, both in the Diagnostics Pane and in the Project Explorer, next to the name of the associated device.

It is possible to signal a hardware error directly from Perun PowerDesk by invoking the General Stop command, which can be located either on the Main Ribbon or from the device drop-down menu. This command serves as a software emergency stop, or software panic button and it forces the device to stops its operation in the safest way possible.

Any device related error signals can be reset by invoking the General Enable command, which is opposite to the General Stop in the sense that it cancels it. After calling the general enable, the device should ‘’recover’’ from any previous invocation of General Stop.