Serial Communications Port - Sartorius ME215 Operating Instructions Manual

Serial Communications Port

Purpose
The ME/SE balance has a serial
communications port (labeled
"PERIPHERALS") to which you can
connect a computer, a remote display
or an external checkweighing display.
You can use an on-line computer to
change, start and/or monitor the func-
tions of the balance and the application
programs.
The communications port also provides
data output port lines for the over/under
checkweighing program. This port
can also be used to connect a hand or
foot switch.
! Warning When Using Pre-wired
RS-232 Connecting Cables
RS-232 cables purchased from other
manufacturers often have incorrect pin
assignments for use with Sartorius bal-
ances. Be sure to check the pin assign-
ment against the chart before connect-
ing 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.
140
Features
Type of interface: Serial port
Operating mode: Full duplex
Standard: RS-232 (RS-485 optional)
Interface connector: D-SUB female connector, 25-contact
Optional: round female connector, 12-contact
Optional: D-SUB female connector, 9-contact
(Each of the optional connectors comes with a DIN 5-contact
female connector)
Transmission rates: 150; 300; 600; 1200; 2400; 4800; 9600 and 19,200 baud
Parity: Odd, even, none
Character transmission: Start bit, 7/8-bit ASCII, parity, 1 or 2 stop bits
Handshake: For 2-wire interface: software (XON/XOFF);
for 4-wire interface: hardware (CTS/DTR)
Communication mode: SBI, xBPI*
Network address**: 1, 2, ..., 31, 32
Manual print mode Without stability, after stability
Automatic print mode Without stability, at stability, when weight changes
Data output format
of the balance: 16 characters, 22 characters
* xBPI communication mode always with 9600 baud, 8-bit ASCII, uneven parity,
1 stop bit
** Network address is only for the xBPI communication mode
Factory Settings of the Parameters:
Transmission rates:
Parity:
Stop bits:
Handshake:
Communication mode:
Network address:
Manual printing:
Automatic printing:
Stop automatic printing:
Automatic printout, time-dependent:
Print on request then tare:
Application initialization values:
Line format:
Preparation
For the pin assignment charts, see the description starting on page 145.
1,200 baud
Uneven
1 stop bit
Hardware, 1 character after CTS
SBI
0
After stability
Without stability
Not possible
After 1 display update
Off
Off
For other apps./GLP (22 characters)