Metrohm 870 KF Titrino plus Manual - Manual (Page 88)

10.7 Remote control via an RS-232 connection
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78 ￭￭￭￭￭￭￭￭
870 KF Titrino plus
6.2134.040
Figure 18 Connecting the RS-232/USB Box to the PC
Interface parameters
We recommend the following parameters for the RS-232 interface
COM2:
￭ Baud rate: 19200
￭ Data bits: 8
￭ Stop bits: 1
￭ Parity: none
￭ Handshake: software
On the 870 KF Titrino plus, adjust the interface parameters under
Menu
▶ System ▶ External devices ▶ COM2 settings.
Transfer protocol
The data communication is synchronous. On each command there is an
acknowledgement by the instrument.
A command must be sent to the instrument with the control characters
CR LF as terminator. The acknowledgements of the instrument will also
be transferred with CR LF as terminator.
The instrument does not send spontaneous messages.
10.7.1 Commands and variables
Command Function Comment
$G Start/Continue Corresponds to the key [START] or [Con-
tinue]
$S Stop Corresponds to the key [STOP]
$H Hold Hold the method run