Fairbanks X SERIES PR 5220 ETHERNET TRANSMITTER Manual de usuario descargar pdf (Pagina 71)

Section 6: SMA Protocol

05/11 72 51209 Revision 2

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>

6.3.1 Requesting a Weight

Command

Reply: The scale immediately returns the weight and status: gross weight if not tared, net

weight if tared.

For details, see Chapter 6.6.1 .

6.3.2 Requesting the Weight with Stability

Command

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 5.4.19.

After elapse of the waiting time without reaching stability, the following reply is sent:

For details, see Chapter 6.6.1 .

6.3.3 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

Reply: The scale repeats the weight and status information continuously until another

command is received.

For details, see Chapter 6.6.1 .

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

6.3.4 Requesting the High-Resolution Weight

Command

Reply: The scale immediately returns the high-resolution (10x) weight and status: Gross

weight if not tared, net weight if tared.

Note: The <n> gross/net status is shown in lower-case letters while the high-resolution

weight is sent.

For details, see Chapter 6.6.1 .

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Fairbanks X SERIES PR 5220 ETHERNET TRANSMITTER Manual de usuario Pagina 71