Error Queue
When an error occurs, the error queue stores the error number and message. For example, if the
instrument receives an incorrect program message from the controller, the error number (113) and
the error message (“Undefined header”) are stored in the error queue when the instrument displays
the error message.
You can use the :STATus:ERRor? query to read the contents of the error queue. Like the output
queue, the messages in the error queue are read from the oldest one first.
If the error queue overflows, the last message is replaced with the following message: 350, “Queue
overflow.”
The error queue is cleared in the following cases.
• When a *CLS command is received.
• When the WT300 series is restarted.
You can determine whether or not the error queue is empty by checking bit 2 (EAV) in the status
byte.