32
TEFC_A-BA-e-2110
10 RS-232 interface
RS-232 ensures two-way data exchange between the scale and external devices. Da-
ta is sent asynchronously in ASCII code.
To ensure communication between the balance and the printer, the following condi-
tions must be met:
•
Connect the scale with the printer interface using the appropriate cable. Trou-
ble-free operation is ensured only when the appropriate interface cable by
KERN is used.
•
Communication parameters (e.g. transmission speed) of the scale and the
printer must be compliant.
10.1 Technical specification
Port
9-Pin--pin mini D-Sub plug
Pin 2 RXD
Input
Pin 3 TXD
Output
Pin 5 GND
Signal ground
Transmission
speed
The choice of 4800/9600
10.2 Protocol template (KERN YKB-01N)
10.3 Printout protocol (continuous data transmission)
Byte
1
2
3
4
5
6
7
8
9
10
11
12
13
+
<20> <20>
1
5
0
.
0
k
g
<CR> <LF>
–
<20> <20> <20>
5
0
.
0
k
g
<CR> <LF>
O
L
Nr
Description
1
The sign (plus/minus); alphabet: O
2
∼
8
7 bits of weighing value including the decimal point
9
∼
10
Weight unit
11
∼
12
End symbol
<20>
Space
+ 15.000 kg
