Instruction Manual

Section 5: SMA Protocol
10/08 120 51207 Revision 1
Requesting the High-Resolution Weight with Stability
Command: <LF>Q<CR>
Reply: The scale returns the weight and status only, when the stability condition is met: Gross
weight if not tared, net weight if tared.
The stability condition must be met for this function. The maximum waiting time for
stability is set under [Tare timeout]; see Chapter 4.5.13.
<LF><s><r><n><m><f><xxxxxx.xxx><uuu><CR>
After elapse of the waiting time without reaching stability, the following reply is sent:
<LF><_><1><n><_><f><----------><___><CR>
For details, see Chapter 5.4.1 .
Requesting the High-Resolution Weight Continuously
This is a command which generates non-requested replies, because it does not function according
to the strict command-and-reply pattern. After the command, the scale repeats the reply
continuously.
Command: <LF>S<CR>
Reply: The scale repeats the high-resolution weight and status information continuously, until
another command is received.
<LF><s><r><n><m><f><xxxxxx.xxx><uuu><CR>
For details, see Chapter 5.4.1 .
Dependent on the used baud rate, the repetition rate of reply telegrams is roughly as follows:
19200 bd  100ms
9600 bd  110ms
4800 bd  170ms
Requesting the Tare Weight
Command: <LF>M<CR>
Reply: The scale returns the tare weight and signals the 'tared' status in the <n> status
character.
<LF><s><r><T><m><f><xxxxxx.xxx><uuu><CR>
For details, see Chapter 5.4.1 .
5.3.2 Controlling the Scale
Request for Taring of the Scale
Command: <LF>T<CR>
Reply: The scale makes a taring attempt and signals the tared status in the <s> and <n>
characters.
For this function, the stability condition must be met. The maximum waiting time for
stability is set under [Tare timeout]; see Chapter 4.5.13
<LF><s><r><N><m><f><xxxxxx.xxx><uuu><CR>
For details, see Chapter 5.4.1 .