22 communication protocol, Communication protocol – RADWAG PS 510.R2.CT Carat Balance User Manual
Page 159

- 159 -
and then:
1 – 3
4
5
6
7
8 – 16
17
18 - 20
21
22
C
om
m
and
sp
ace
st
ab
ilit
y
m
ar
ker
sp
ace
char
ac
ter
M
as
s
sp
ac
e
uni
t
CR
LF
command
- 1 ÷ 3 - characters
stability marker - [space] – when stable
- [?] – when unstable
- [^] – if there is an error exceeding the maximal range +
- [v] – if there is an error exceeding the maximal range -
characters
- [space] – for positive or [-] values
mass
- 9 characters – aligned to the right
unit
- 3 characters – aligned to the left.
22 COMMUNICATION PROTOCOL
General information
A. A character based communication protocol balance-terminal is designed for
establishing communication between a RADWAG balance and peripheral
devices via RS 232 interface.
B. It consists of commands sent from a peripheral device to the balance and
responses from the balance.
C. Responses are sent from the balance on each receipt of a command as a
reaction to a specific command.
D. Commands forming the communication protocol enable obtaining data on
balance’s status and influencing its operation, e.g.: request measurement
results from the balance, zero indication, etc.