, ensure "Termination" is configured correctly in your software settings. đź“‹ Quick Fix Summary Reading empty buffer command before reading. Slow Processing Add a small delay (e.g., 100ms) before the read. Old Firmware Upgrade firmware to support newer commands. Ghost Errors to clear previous error states. If you'd like to dive deeper, could you tell me: instrument model are you using? programming language or software (Python, LabVIEW, C#) are you using? Does the error happen every time or only occasionally? Eliminating Common SCPI Errors
In standard SQL-92 standards, 42000 refers to a "Syntax Error or Access Rule Violation." However, in the context of Sybase ASE and OpenClient libraries, error codes in the 400 range often relate to . 420 query unterminated
This part of the message is the smoking gun. It implies that the database engine began reading a command sequence but reached the end of the transmission buffer before finding a logical conclusion. In simpler terms: , ensure "Termination" is configured correctly in your
: On some devices, such as Keithley SMUs , being in the wrong command mode (e.g., TSP instead of SCPI) can cause this error when using standard drivers. How to Fix It -420 Query Unterminated on Target Machine - NI Community Old Firmware Upgrade firmware to support newer commands