Rice Lake QB Series, Operation Manual

Page: 27 / 32

Specifications 23
5.1.3 Output Control Settings
NOTES:
• The performance of the device can be controlled by output controls with commands 00-07 and by the parameter
settings (see Table 4-1 on page 15). Commands 08 and 09 are limited to an input command string.
• Once any command is initiated, that status is maintained until a new command is initiated. However, once the power is
turned off, the output control status returns to the setting previous to the last input command.
5.1.4 Interface Specifications
5.2 Connecting to a Computer
Connecting the balance to a computer enables you to operate the balance from the computer as well as receive
data such as displayed weight and unit of measure. The following sections describe the hardware and output
signal formats provided with the balance.
5.2.1 Hardware
A 5-pin DIN connector for interfacing to other devices (see Figure 5-2 on page 24) is located on the rear of the
QB Series balances equipped with the optional RS-232C interface.
The balance does not output any data unless pin 2 is held in an ON state (+5 VDC to +15 VDC). Interfaces
requiring the CTS handshake may tie pins 5, 4, and 8 on the computer side to defeat it.
C1 C2 Code 1 Code 2 Contents
0 0 4FH 30H Interface off, no printing available
0 1 4FH 31H Automatic continuous printing of zero display, unstable and stable weighing values
0 2 4FH 32H
Automatic continuous printing of stabilized data only (for example, stable
0
value and
stable weight value)
0 3 4FH 33H
Pushbutton printing from balance P key of stable
0
value and stable weight value
0 4 4FH 34H Auto-printing of stabilized weight value only
0 5 4FH 35H Auto-printing x 1 of stabilized zero value and stabilized weight value
0 6 4FH 36H Auto-printing x 1 of any weight stable display value
0 7 4FH 37H
Pushbutton printing from balance P key of stable
0
value and stable weight value
0 8 4FH 38H Automatic output x 1 of stable data; continuous output of unstable data
0 9 4FH 39H Data output x 1 each time P key is pressed and released with data stabilized
Table 5-10. Output Control Settings
Item Specification
Transmission method RS-232C serial data, random access
Transmission speed 1200/2400/4800 bps; user selectable; (see Table 4-1 on page 15)
Transmission code ASCII; 8-bit
Signal level EIA RS-232C;
High Level - Data logic “0” + 5 VDC to +15 VDC
Low Level - Data logic “1” -5 VDC to -15 VDC
Contents of word 8-bit word based on ASCII standard character codes; 1 start bit; 2 stop bits; 0/1 parity bit
Parity bit Null, even or odd parity
Table 5-11. RS-232C Interface Specifications