Chapter 6 Digital Input/Output - Advantech PCM-3718 Series User Manual

Chapter 6 Digital Input/Output

The PCM-3718 cards provide two 8-bit digital input/output channels.
The registers at addresses BASE+3 and BASE+11 can input or latch out-
put data. Data format for each register appears as below:
BASE+3 (read port) -DIO low byte
Bit
Value DIO7
BASE+3 (write port) DIO low byte
Bit
Value DIO7
BASE+11 (read port) - DIO high byte
Bit
Value
BASE+11 (wirte port) - DIO high byte
Bit
Value
Using the PCM-3718's input and output functions is fairly straightfor-
ward. Page 23 shows some ideas for digital signal
connections.
PCM-3718 Series User Manual
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D7 D6 D5
DIO6 DIO5
D7 D6 D5
DIO6 DIO5
D7 D6 D5
DIO15 DIO14 DIO13 DIO12 DIO11 DIO10 DIO9
D7 D6 D5
DIO15 DIO14 DIO13 DIO12 DIO11 DIO10 DIO9
D4 D3 D2
DIO4 DIO3 DIO2
D4 D3 D2
DIO4 DIO3 DIO2
D4 D3 D2
D4 D3 D2
50
D1 D0
DIO1 DIO0
D1 D0
DIO1 DIO0
D1 D0
DIO8
D1 D0
DIO8