Rice Lake PR5220 Ethernet Transmitter - Manual (Page 126)

SMA Protocol PR 5220 Instrument Manual
EN-126 Sartorius
6.3 SMA Command Set
The SMA command set is intended for requesting weight values and status information as well as for control
of the scale. The commands start with <LF> and end with <CR>.
Format: <LF>c<CR>
Requesting a Weight
Requesting a Weight
Command: <LF>W<CR>
Reply:
The scale immediately returns the weight and status: gross weight if not tared, net weight if
tared.
<LF><s><r><n><m><f><xxxxxx.xxx><uuu><CR>
For details, see page 130.
Requesting the Weight with Stability
Command: <LF>P<CR>
Reply:
The scale returns the weight and the status only, when the stability condition is met: Gross
weight if not tared, net weight if tared.
For this function, the stability condition must be met. The maximum waiting time for stability is
set under [Tare timeout]; see Chapter 4.4.13.
<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 page 130.
Requesting Weight Continuously
This is a command which generates non-requested replies, because it does not function according to the strict
pattern of command and reply. After the command, the scale repeats the reply continuously.
Command: <LF>R<CR>
Reply:
The scale repeats the weight and status information continuously until another command is
received.
<LF><s><r><n><m><f><xxxxxx.xxx><uuu><CR>
For details, see page 130.
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