Measurement Computing Micro 488/EX rev.2.1 - Manual (Page 210)

Appendix B Micro488/EX Error Messages
B.2
10 MESSAGE OVERFLOW
No memory is available to buffer the received data of the OUTPUT
command.
11 NOT A TALKER
As the Active Controller, an un-addressed OUTPUT, a SEND DATA or a
SEND CMD was received and the Micro488/EX was not in the Talk
Addressed State.
12 NOT A LISTENER
As the Active Controller, an un-addressed ENTER or a SEND ENTER
was received and the Micro488/EX was not in the Listen Addressed
State.
13 BUS ERROR
The Micro488/EX tried to output data to the bus but there was no
active listener to accept it.
14 TIMEOUT - WRITE
The specified TIME OUT time has elapsed before the last command or
data byte sent by the Micro488/EX was accepted by an external device.
15 TIMEOUT - READ
The specified TIME OUT time has elapsed while the Micro488/EX was
waiting for a data byte from an external device.
16 OUT OF MEMORY
The Micro488/EX was unable to perform the last command requested
due to the lack of sufficient memory in the USER heap. It aslo indicates
that there is no more memory available for the log buffer This error
will cause the ERROR LED to flash.
17 MACRO RECURSION
A DOMACRO command specified a Macro buffer that was already
executing.