Metrohm 820 IC Separation Center - Manual (Page 87)

5.1 RS 232 interface
819 IC Detector / 820 IC Separation Center
79
5 Interfaces
5.1 RS 232 interface
The RS 232 interface 9 of the 819 IC Detector is used for the connection
of the 830 IC Interface or a PC (see Section 2.3.1 – 2.3.2) and allows
remote operation of 819 IC Detector and 820 IC Separation Center.
5.1.1 Data transmission protocol
The RS 232 interface 9 of the 819 IC Detector is configured as DTE
(Data Terminal Equipment) with the following technical specifications:
• Standard Data interface in accordance with EIA standard
RS 232C (DIN 66020, page 1)
• Baud rate 9600
• Data Bits 8
• Stop Bits 1
• XON/XOFF on
• 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 819 IC Detector 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 connectors with
sufficient shielding (e.g. Metrohm K.210.0001
with K.210.9004).
• Cable length max. ca. 15 m