Specifications

8527-M300-O1 AS-330D Series
Page 3
DIP SWITCH SETTINGS
FUNCTION SETTINGS Switch 1 Switch 2 Switch 3 Switch 4 Switch 5
Baud Rate
19,200 OFF ON
9,600
1,2
ON ON
4,800 ON OFF
2,400 OFF OFF
Weight Mode
Pounds & Ounces ON ON
Pounds only OFF ON
Kilograms ON OFF
UPS Pounds Mode
2
OFF OFF
Auto Zero on
YES
1,2
ON
Power Up
NO OFF
1
Factory setting
2
For UPS WorldShip Users
SERIAL INTERFACE SPECIFICATIONS
Your AS-330D Series scale has a RS-232 serial port that may be connected to a computer for
transmission of weight data. The weight data may be transmitted on demand (on receipt of a
command from the computer) or continuously. The figure below shows the Serial Interface
connector along with the identity of the pins used.
PIN NO. FUNCTION
1
DATA INPUT (RXD)
4
SIGNAL GROUND (GND)
6
DATA OUTPUT (TXD)
Serial data from the AS-330D Series scale is transmitted and received using 8 data bits, no
parity and one stop bit (8, N, 1). The baud rate may be set using dip switches 1 and 2. The
Weight mode is set using dip switches 3 and 4.
The host computer sends request to the scale in the form of ASCII or HEX characters. The
following is a list of commands that can be sent by the computer and the scale response:
COMMAND SCALE RESPONSE
^N (control N, hex 0E) Scale sends weight data continuously
^O (control O, hex 0F) Stop continuous weight data
~ (tilde, hex 7E) Weight data sent once in pounds/ounces mode
W (uppercase W) Weight data sent once in pounds only mode
K (uppercase K) Weight data sent once in kilograms mode
^X (control X, hex 18) Zero the scale from the PC
ESCAPE (ESC, hex 1B) Reset the scale from the PC
^D (control D, hex 04) Request the scale software revision
6 5 4 3 2 1