Measurement-computing PC104-PDISO8 Instrukcja Użytkownika Pobierz pdf (Strona 7)

Table 1-1. PC I/O Addresses

SERIAL PORT3F8-3FFEGA2B0-2BF

FLOPPY DISK3F0-3F7PARALLEL PRINTER270-27F

SERIAL PORT3E8-3EFALT BUS MOUSE23C-23F

CGA3D0-3DFBUS MOUSE238-23B

EGA3C0-3CFEXPANSION UNIT (XT)210-21F

PARALLEL PRINTER3BC-3BFGAME CONTROL200-20F

MDA3B0-3BBHARD DISK (AT)1F0-1FF

SDLC3A0-3AF80287 NUMERIC CO-P (AT)0F0-0FF

SDLC380-38F8237 #2 (AT)0C0-0DF

PARALLEL PRINTER378-37FNMI MASK (XT)0A0-0AF

HARD DISK (XT)320-32F8259 PIC #2 (AT)0A0-0A1

PROTOTYPE CARD310-31FDMA PAGE REGISTERS080-08F

PROTOTYPE CARD300-30F

CMOS RAM & NMI MASK (AT)

070-071

SERIAL PORT2F8-2FF8742 CONTROLLER (AT)060-064

SERIAL PORT2E8-2EF8255 PPI (XT)060-063

GPIB (AT)2E0-2E78253 TIMER040-043

EGA2D0-2DF8259 PIC #1020-021

EGA2C0-2CF8237 DMA #1000-00F

FUNCTIONHEX

RANGE

FUNCTIONHEX

RANGE

The BASE switches can be set for an address in the range of 000-3F8 so it should not

be hard to find a free address. Addresses not specifically listed, such as 390-39F, are

free.

2.3 AC INPUT FILTER

The inputs are eight individual, optically isolated (500V) inputs that may be read back

as a single byte. The inputs are not polarity sensitive and can be driven by either AC

(input range −24V to +24V RMS, 50 to 1000 Hz) or DC (input range −24V to

+24VDC). Each input has a switchable low-pass filter.

The switch which controls the input

filter is shown in Figure 2-2. From left

to right, the switches apply to inputs 0

to 7. The diagram shows the low pass

filter for inputs 0 and 1 enabled.

The filter must be used for AC inputs

and should be used for DC inputs.

Unless you have reason to turn off a

filter, we recommend it be left on. Figure 2-2. AC Filter Switches

1 2 3 4 5 6 7 8 9 10 11 12 ... 19 20

Brak uwag

Measurement-computing PC104-PDISO8 Instrukcja Użytkownika Strona 7