Rice Lake PR5220 Ethernet Transmitter - Manual (Page 131)

PR 5220 Instrument Manual SMA Protocol
Sartorius EN-131
Reply with Unknown Command
? A command from the controlling computer that is not implemented, or invalid, is replied
with an ASCII ‘?’.
Reply in Case of Communication Error
! A command from the controlling computer that is unknown to the scale due to a
communication error is replied with an ASCII ‘!’. This includes parity error or frame error
(if any).
Reply with Diagnosis Command
When a diagnosis command is given, the scale makes a test and gives a status reply.
Reply format and meaning:
Start of diagnosis reply
‘R’ = RAM or ROM error, ‘_’ = OK,
‘E’ = EEPR OM error, ‘_’ = OK
‘C’ = calibration error, ‘_’ = OK
Always: ‘_’ = OK
Start of the diagnosis reply
Example: without error status
Command Reply
D <_> <_> <_> <_>