HP 8920B Programmer's Manual page 284

Chapter 5, Advanced Operations
Status Reporting
Error Message Queue Group
Figure 11 Error Message Queue Group
284
The Error Message Queue Group is an implementation of the status queue model
described in
"Status Queue Model" on page 270
type is a first-in, first-out (FIFO) queue that holds up to 20 messages. The Error
Message Queue Group includes a FIFO queue but no Message Available (MAV)
Summary Message. Refer to the
for an overview of status queue operation.
260
the Error Message Queue Group.
SYSTem: ERRor?
. The Error Message Queue queue
"Status Reporting Structure Overview" on page
Figure 11
Last Message Entered
Next Message Entered
First Message Entered
Error Message Queue
shows the structure of
Last Message
to be Read
First Message
to be Read