Sartorius PR 5211 Series - Unrecognized Command Response; Communication Error Response; Diagnostics Command Response

SMA Protocol PR 5211 Instrument Manual
EN-52 Sartorius
Examples:
Command Response
<LF>W<CR> <LF> <_> <1> <G> <_> <_> <_ _ _ _ 5.025> <lb_> <CR>
<LF>W<CR> <LF> <_> <1> <N> <_> <_> <_ _ _ _ 100000> <lb_> <CR>
<LF>H<CR> <LF> <_> <1> <g> <_> <_> <_ _ _ _5.0025> <lb_> <CR>
<LF>Z<CR> <LF> <Z> <1> <G> <_> <_> <_ _ _ _ _0.000> <lb_> <CR>
<LF>R<CR> <LF> <_> <1> <G> <_> <_> <_ _ _ _ 7.025> <kg_> <CR>
<LF> <_> <1> <G> <M> <_> <_ _ _ _ 7.650> <kg_> <CR>
…repeat…
<LF> <_> <1> <G> <_> <_> <_ _ _ _ 7.650> <kg_> <CR>
The scale will repeat weight until next command is received.
5.4.2 Unrecognized Command Response
Any host command that the scale does not recognize either because it is not supported by the implemented
SMA level or because it is simply not a recognized command will be responded to by the scale with an ASCII
‘?’ question mark.
<LF> ? <CR>
5.4.3 Communication Error Response
Any host command that the scale does not recognize due to a communication error will be responded to by
the scale with an ASCII ‘!’ exclamation mark. This would include a parity error (if used) or data framing error.
<LF> ! <CR>
5.4.4 Diagnostics Command Response
When the scale is commanded to perform internal diagnostics, a the test is performed and the following
response is returned with the appropriate error indicators set or cleared.
<LF> <r> <e> <c> <m> <CR>
where:
<LF> Start of diagnostic response
<r> ‘R’ = RAM or ROM error, ‘_’ = OK,
<e> ‘E’ = EEPR OM error, ‘_’ = OK
<c> ‘C’ = Calibration error, ‘_’ = OK
<m> Always: ‘_’ = OK
<CR> End of diagnostic message
Example:
With no errors!
Command Response
<LF>D<CR> <LF> <_> <_> <_> <_> <CR>