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Installation • 11

2.5 Base Address Setting

The ACL-7120A requires eight consecutive address locations in the I/O

address space. The base address of the ACL-7120A is restricted by the

following conditions:

The base address must be within the range 200hex to 3FFhex.

The base address should not conflict with any PC I/O address.

The ACL-7120A default I/O port base address 0x2A0 is set by the 6 position

DIP switch SW1 (refer to Figure 2.2). Possible address settings for I/O ports

are from Hex 200 to Hex 3FE and are listed in Table 2.2.

Default Base Address = 0x2A0

123456

A ( 9 8 7 6 5 4 )

Figure 2.2 Default Base Address Setting

I/O port address(hex)

200-20F OFF ON ON ON ON ON

2A0-2AF (*) OFF ON OFF ON OFF ON

2B0-2BF OFF ON OFF ON OFF OFF

3D0-3DF OFF OFF OFF OFF ON OFF

3E0-3E0 OFF OFF OFF OFF OFF ON

3F0-3FF OFF OFF OFF OFF OFF OFF

* Default setting

A9,...,A4 correspond to PC address lines

Table 2.1

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 39 40

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ADLINK Technology ACL -6128 Guía de usuario Pagina 17