Agilent Technologies 8163A - The Error Queue

Introduction to Programming Message Queues
22 Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Fifth Edition
The Error Queue
The error queue is 30 errors long. It is a FIFO queue (first-in first-out). That
is, the first error read is the oldest error to have occurred. For example:
1 If no error has occurred, the error queue contains:
+ 0, "N
o error"
2
After a command such as wav:pow, the error queue now contains:
+ 0, "N
o error"
-113, "Undefined header"
3
If the command is immediately repeated, the error queue now contains:
+ 0, "N
o error"
-113, "Undefined header"
-113, "Undefined header"
If more than 29 errors are put into the queue, the message:
-350, "Queue overflow"
is placed as the last message in the queue.