A&D SW-15KS User Manual

Circuit diagram

Data format

S T

g C

Header Data Unit Terminator

There are 4 headers for the weighing data.

ST:

Stable weighing data

QT:  Stable counting data
US:    Unstable weighing data
OL:  Out of weighing range

The data consists of 9 characters including the polarity and decimal point.

There are 5 units.

_ k g: Weighing mode “kg”

_ _ g: Weighing mode “g”

_ l b: Weighing mode “lb”

_ o z: Weighing mode “oz”

_ PC: Counting mode “pcs”

As a terminator,

is always output.

1 Receive data RXD
2 Transmit data TXD
3 Data set ready DSR
4 Signal ground SG
5 Shield SHLD

is designed as DCE (Data Communication Equipment).

1 Relay output LOLO
2 Relay output LO
3 Relay output OK
4 Relay output HI
5 Relay output HIHI
6 Relay common COM
7 Shield SHLD

Solid sate relay

SW inside

LOLO

HIHI