Message Queue - Keysight Technologies InfiniiVision 4000 X Series Programmer's Manual

Message Queue

The message queue contains the text of the last message written to the advisory
line on the screen of the oscilloscope. The length of the oscilloscope's message
queue is 1. Note that messages sent with the :SYSTem:DSP command do not set
the MSG status bit in the Status Byte Register.
Keysight InfiniiVision 4000 X-Series Oscilloscopes Programmer's Guide
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Status Reporting
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