USER MANUAL
55
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17. Detailed information about balance communication
Below important information about serial ports.
17.1 Long protocol description
Transmission proceeds in the following way:
1. Communication parameters: 8 bits, 1 stop bit, no parity, baud rate 9600bps,
2. Available orders send from computer and balance answers:
Readout of scale indication ( corresponds to pressing
key
Computer
Scale:
S I
CR LF (53h 49h 0Dh 0Ah),
Scale
Computer: scale response according to description below (16 bytes):
Byte 1
-
sign „
-
” or space
Byte 2
- space
Byte 3
4
- digit or space
Byte 5
÷
9
- digit, decimal point or space
Byte 10
- digit
Byte 11
- space
Byte 12
- k, l, c, p or space
Byte 13
- g, b, t, c or %
Byte 14
- space
Byte 15
- CR
Byte 16
- LF
Attention:
Network number different than zero (
SErIAL
/ nr
function) changes scale working mode: communication
with a computer is possible after logging the scale in with 02h scale number command. To log the scale out
use 03h command.
For example: Using a program to test RS232 interface ( program is available on
programs section) for scale number 1 please write:
$0201
to log in, then
SI
, and write:
$03
to close
communication
.
Asking for scale presence in system (testing scale connection with computer):
Computer
Scale:
S J
CR LF (53h 4Ah 0Dh 0Ah),
Scale
Computer: M J CR LF (4Dh 4Ah 0Dh 0Ah),
Displaying a sign on scale display (text message from computer):
Computer
Scale:
S N
n n X X X X X X CR LF (53h 4Eh 0Dh 0Ah), nn-displaying time in
seconds; XXXXXX- signs to display
Scale
Computer: M N CR LF (4Dh 4Eh 0Dh 0Ah),
Scale tarring (calling
T
key press) :
Computer
Scale: S T CR LF (53h 54h 0Dh 0Ah),
Scale
Computer: without response,
Scale zeroing (calling
0
key press):
Computer
Scale: S Z CR LF (53h 5Ah 0Dh 0Ah),
