Advantech PPC-S123 Manuale Utente Pagina 70

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54
PPC-123 User's Manual
5.4 COM-port Interface
The panel PC provides four serial ports (COM1, 3, 4: RS-232; COM2:
RS-232/422/485) in one COM port connector.
5.4.1 COM2 RS-232/422/485 setting (JP3, JP4, JP5)
COM2 can be configured to operate in RS-232, RS-422, or RS-485
mode. This is done via JP3, JP4 and JP5.
Table 5-4: COM2 RS-232/422/485 setting (JP3, JP4)
*RS-232 RS-422/485
* default setting
Table 5-5: COM2 RS-232/422/485 setting (JP5)
*RS-232 RS-422 RS-485
* default setting
The IRQ and the address ranges for COM1, 2, 3, and 4 are fixed.
However, if you wish to disable the port or change these parameters
later you can do this in the system BIOS setup. The table overleaf
shows the default settings for the panel PC’s serial ports.
26
15
26
15
JP4
JP3
26
15
26
15
JP3
JP4
246
135
246
135
246
135
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