Fairbanks X SERIES PR 5410 Process Indicator User Manual
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Section 5: SMA Protocol
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51207 Revision 1
... repeat...
The scale repeats the weight, until another command is received.
5.4.2 Reply with Unknown Command
A command from the controlling computer that is not implemented, or invalid, is
replied with an ASCII ‘?’.
5.4.3 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).
5.4.4 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’ = EEPROM error; ‘_’ = OK
‘C’ = calibration error; ‘_’ = OK
Always: ‘_’ = OK
End of the diagnosis reply
Reply: without error status
Command
Reply