Service Manual
Page 45 of 50
6.1.6 Dialog 02 / 04
Note: To use Dialog 04, select this protocol but set the baud rate to 4800
6.1.6.1 Data Format
Baud rate: 2400 Baud
Type of transmission: asynchronous
Data format: 7 Bit + Parity
Parity: odd
Stop bits: 1 Bit
Connection
Scale
POS
TXD 3
2 RXD
RXD 2
3 TXD
GND 5
5 GND
6.1.6.2 Flow Chart
Note: The scale replies to ENQ with NAK when there is no load on the platter, the scale is in motion,
under zero, or overcapacity. NAK is sent in response to the setting strings if there is invalid data in
the setting.
6.1.6.3 Command Descriptions
POS System Communications to a Scale
Setting number 01
- Basic Price
EOT STX 30h 31h ESC D5 D4 D3 D2 D1 D0 ESC ETX
\_____/ \__________________/
Setting number Basic Price
(01) 6 digits
Setting number 03
: Basic Price, Tare Value
EOT STX 03h 33h ESC D5 D4 D3 D2 D1 D0 ESC T3 T2 T1 T0 ETX
\_____/
\__________________/ \__________/
Setting number basic price tare value
(03) 6 digits 4 digit
Setting number 04
: Basic Price, Text
EOT STX 30h 34h ESC D5 D4 D3 D2 D1 D0 ESC A................A ETX
EOT
STX
SET 03
ETX
STX
SET 04
ETX
ETX
STX
SET 05
ETX
ENQ
ACK
NAK
EOT
STX
SET 02
NAK
ETX
STX
SET 01
ECR
SCALE
NAK
STX
ETX
STX
ETX
SET 08
SATZ 09
Response: Min. 2ms
Max. 5ms