Metrohm 766 IC Sample Processor - Manual (Page 110)

5.2 RS232 interface
766 IC Sample Processor
105
5.2.7 Data transmission protocol
The RS232 interface of the 766 IC Sample Processor is configured as
DTE (Data Terminal Equipment) with the following technical specifica-
tions:
• Standard Data interface in accordance with EIA standard
RS 232C (DIN 66020, page 1), transmission
parameters can be set under 'configura-
tion/RS232 settings'
, see section 4.2.1.
• Control characters C
R
DEC 13 HEX 0D
L
F
DEC 10 HEX 0A
XON DEC 17 HEX 11
XOFF DEC 19 HEX 13
• Max. line length 80 characters + C
R
L
F
• Mode Full duplex (simultaneous transmission and re-
ceiving)
Restriction:
If data are first received by the interface, trans-
mission is not started until the receipt is at an
end.
• Cable For interconnection of the 766 IC Sample Proc-
essor with third-party devices, only a shielded
data cable may be used (e.g. METROHM
D.104.0201). The cable shield must be perfectly
earthed at both devices (pay attention to current
loops: always use star earthing). Use only con-
nectors with sufficient shielding (e.g. Metrohm
K.210.0001 with K.210.9004).
• Cable length max. ca. 15 m
Start 7 or 8 data bits parity bit 1 or 2 stop bits