Advantech 4-Port RS-232 Interface card PCL-849 Bedienungsanleitung PDF herunterladen (Seite 17)

18 PCL-849 User's Manual

switch S1 designates the card's interrupt status register address, as

shown in the following figure and table.

Interrupt Status Register S1

Bit Function

0 Port 1

1 Port 2

2 Port 3

3 Port 4

4 Not Used

5 Not Used

6 Not Used

7 Not Used

The user may change the interrupt status register address via S1.

Please note that the address decoder will occupy a continuous, 16-byte

area related to the switch setting. For example, if you set the switch to

210H, then the address 210H to 21FH will all be decoded. The

various DIP switch settings (S1) for the interrupt status register are as

shown in the table opposite.

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 32 33

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Advantech 4-Port RS-232 Interface card PCL-849 Bedienungsanleitung Seite 17