117
Purpose
Your LA Reference balance comes
equipped with an interface port for
connection to a computer or other
peripheral devices.
You can use an on-line computer to
change, start and/or monitor the func-
tions of the balance and the application
programs. The interface port also has
four control lines for the over/under
checkweighing program. You can also
connect a hand switch or foot switch.
! Warning When Using Pre-wired
RS-232 Connecting Cables!
RS-232 cables purchased from other
manufacturers often have incorrect pin
assignements for use with Sartorius
balances. Be sure to check the pin
assignment against the chart below
before connecting the cable, and
disconnect any lines marked “Internally
Connected” (e.g., pin 6). Failure to do
so may damage or even completely ruin
your balance and/or peripheral device.
Interface Description
Available Features
Type of interface: Serial interface
Operating mode: Full duplex
Standard: RS-232
Transmission rates: 150; 300; 600; 1,200; 2,400; 4,800; 9,600;
19,200 baud
Parity: Space, odd, even
Character format: 1 start bit, 7-/8-bit ASCII, parity, 1 or 2 stop bits
Handshake: 2-wire interface: via software (XON/XOFF); 4-wire
interface: via hardware handshake lines (CTS/DTR)
Operating mode: SBI, xBPI*
Network address**: 0, 1, 2, ..., 30, 31
Data output format of the balance: 16 or 22 characters
* xBPI operating mode: 9,600 baud, 8 bits, odd parity, 1 stop bit
** Network address is only valid in the xBPI mode
Factory Settings:
Transmission rate: 1,200 baud
Parity: Odd
Stop bits: 1 stop bit
Handshake: Hardware
1 character after CTS
Operating mode: SBI
Network address: 0
Print manually/automatically: Manual after stability
Stop automatic printing: Not possible
Automatic printout, time-dependent: After 1 display update
Tare after indiv. printout: Off
Application initialization values: Off
Line format: For other applications/GLP (22 characters)
Preparation
G See page 122 for the pin assignment chart
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