ETS-Lindgren FM5004 Field Monitor (Archived) - Manual (Page 78)

E RROR R EGISTER Q UERY
Description: Returns a previous error that is contained in the
error register.
Syntax: ERRQ
Parameters: None
Example: To see the most recent error message:
ERRQ?<LF>
The FM5004 will return:
ERRQ,128<CR><LF>
78 | Remote Operation
Archived 10/19/10