beautypg.com

Pr 5220 instrument manual sma protocol – Rice Lake PR5220 Ethernet Transmitter User Manual

Page 127

background image

PR 5220 Instrument Manual

SMA Protocol

Sartorius

EN-127

Requesting the High-Resolution Weight

Command: R
Reply:

The scale immediately returns the high-resolution (10x) weight and status: Gross weight if not
tared, net weight if tared.

Note: The gross/net status is shown in lower-case letters while the high-resolution weight is
sent.

For details, see page 130.

Requesting the High-Resolution Weight with Stability

Command: Q
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.

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

<_><1><_><----------><___>

For details, see page 130.

Requesting the High-Resolution 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: S
Reply:

The scale repeats the weight and status information continuously until another command is
received.

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

Requesting the Tare Weight

Command: M
Reply:

The scale returns the tare weight and signals the 'tared' status in the status character.

For details, see page 130.