PR 5211 Instrument Manual  SMA Protocol 
Sartorius    EN-51 
5.4  Scale Response Messages 
This section details each scale response to host-scale commands. Each response has a “fixed field” data 
format. Every response is deterministic with only a scale communication error being the exception. The host 
can parse the scale response message with explicit rules because each field of each response message is in a 
fixed position format. 
5.4.1  Standard Scale Response Message 
Most of the host commands are responded to in the following message format. 
The only host commands that do not are the: Diagnostic, ABout and INformation commands 
<LF> <s> <r> <n> <m> <f> <xxxxxx.xxx> <uuu> <CR> 
where: 
<LF>  Start of response message   
<s>  scale status  definition/example 
‘Z’  Center of Zero <xxxxxx.xxx>= 0.000 
‘O’  Over Capacity <xxxxxx.xxx>= +weight 
‘U’  Under Capacity <xxxxxx.xxx>= -weight 
‘E’  Zero Error (clears when condition clears) 
‘T’  Tare Error (clears after being read) 
<space>  None of the above conditions 
  Note: For ‘E’, ‘I’, ‘T’ error conditions <xxxxxx.xxx>= ————— 
(center dashes) and ‘Z’, ‘O’, ‘U’ are overridden. 
<r>  range  (‘1’, ‘2’, ‘3’, etc.) always ‘1’ for single range 
<n>  gross/net  Status 
‘G’  Gross normal weight 
‘T’  Tare weight (in response to ‘M’ command) 
‘N’  Net normal weight 
‘g’  gross weight in high-resolution 
‘n’  net weight in high-resolution 
<m>  motion status   
‘M’  scale in Motion 
<space>  scale not in Motion 
<f>    future reserved for future or custom use 
<xxxxxx.xxx>  weight data  this field is fixed at 10 characters 
<uuu>    Unit of Measure 
<CR>    End of response message