Advantech PPC-L126 Instrukcja Użytkownika Pobierz pdf (Strona 39)

27 Chapter 4

The IRQ and the address ranges for COM1, 2, 3, and 4 are fixed. How-

ever, 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.

COM1 and COM2 are one set. You can exchange the address range and

interrupt IRQ of COM1 for the address range and interrupt IRQ of

COM2. After exchanging, COM1's address range is 3F8 ~ 3FF and its

request IRQ is IRQ4: and COM2's address range is 2F8 ~ 2FF and its

interrupt IRQ is IRQ3.

COM3 and COM4 are another set. Their address and IRQ is the same as

the COM1/COM2 set

Table 4.4: COM2 RS-232/422/485 setting (J2)

*RS-232

RS-422

RS-485

* default setting

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 113 114

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Advantech PPC-L126 Instrukcja Użytkownika Strona 39