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I'm getting error code 1073807298 - I/O Error while communicating through VISA using RS232. Since it is intermittent and it doesn't affect my testing, I decided to clear the error and perform the test again. I'm able to clear the error and restart the test, however, I'm not able to communicate through VISA again. How do I restart the VISA communications again? Do I need to close it, then reopen it again?