Quantum Data 801GC, 801GF, 801GX Owner's And Programmer's Manual page 328

4002 No sequence memory
This occurs during the SEQN command. It happens when
there's an insufficient amount of managed memory for the
buffer request.
Save all used edit buffers and issue FMTN, IMGN,
and/or DIRN. This clears extra memory used by these
buffers.
4003 Sequence memory full
There is not enough free memory to save the sequence that
is in the edit buffer.
Reduce the number of steps in the sequence being
edited.
Delete one or more sequences currently stored in
memory. You will need to abandon your current edited
sequence to do this.
4005 Seq ed running
This occurs during SEQB, SEQN, or SEQE commands. It
happens when you have used the Sequence Editor and then
try to use the SEQB or SEQN command.
Exit the generator's GUI sequence editor before editing
a sequence using commands via the communications
port.
4006 No sequence to save
This occurs during SEQA or SEQS commands. It happens
when you try to save the contents of the sequence editing
register and none is initialized.
You must use SEQN before SEQS or SEQA.
4007 Sequence buffer full
No more steps can be added to the current sequence being
edited.
Reduce the number of steps in the sequence.
Break up the testing into two or more separate
sequences.
8-20
Chapter 8: Error Messages
Model 801GC, 801GF & 801GX¥Rev. A