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OPEraTING SySTEMS
4.7.3 Serial interface
The C6 E22 / C6 P3x can be equipped with an (optional) serial interface (COM ports).
The following table gives an overview:
C6 E22
C6 P33
C6 P34
Bookmount
Panel/Box
COM1
----
RS232
----
RS232
COM3
opt. RS232/
RS422/RS485
opt. RS232/
RS422/RS485
opt. RS232/
RS422/RS485
opt. RS232/
RS422/RS485
By default the COM port is configured to the RS232 protocol. RS422/RS485 is also
possible for some devices.
In order to enable activate ports and to switch the protocol setting, it is necessary to en-
ter the BIOS. This is done by pressing the "F2" key during start-up. You can change the
settings by navigating to "Advanced/Super IO Configuration" for C6 E22 or "Advanced/
F81866 Super IO Configuration" for C6 P3x. There you find the settings for the COM
ports.
The names of the COM ports differ within the BIOS. In the C6 E22 BIOS,
"COM1" is designated as "COM A" and "COM3" as "COM C. In C6 P3x BIOS,
COM ports are called "Serial Port x", but with the same number.
Navigate to the "Mode" setting for the COM port and change it to "RS422" or "4-Wire
RS485“. Leave the BIOS with “F10” key to save the changes.
In Windows and/or the COMBIVIS studio 6 application no changes are necessary.
