CRITICALAlarm code
843

DESIGNATED SNo. NOT FOUND (WNo., NNo., BNo.)

What it means

The sequence number for subprogram call, for return from a subprogram or for the GOTO designation is not yet set.

What to do
  1. 1Set the sequence number in the appropriate block.
Codebook — decoded
BError typeRegistered Data — program or tool data error
I (L)Stop statusunspecified
O (S)Clearingunspecified
Still faulted after these steps? Do not restart under load — ask the Mazatrol assistant.
Still stuck? Ask the Mazatrol assistant →