Extra characters appearing when using VISA

Hi, I am new to labview and have a problem I've been working on for a few days. I am reading masses printed from a scale hooked up by a RS-232 to USB connection, with the ultimate goal of recording mass vs. time. Currently random letters appear in the mass at various times and cause the waveform chart to drop to zero, Looking at the signal using another program I am getting a constant mass reading. Searching the forums I have not been able to find a way around this problem. Any help would be . I attached my current program to the bottom to better explain my predicament.
Solved!
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Attachments:
Mass.jpg ‏211 KB

1. Use a proper Stop button.
2. Set the loop's termination condition to be Stop When True.
3. Do not use the Run Continuously. What you are doing here is constantly reinitializing the serial port, which is likely causing data to be missing and giving you your weird results.
4. Close you port after the loop.
5. There is no need at all for that property node. You can define what the termination character is with the Configure Serial Port.
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