Impulse DIO-104.OPTO (3730) - Manual (Page 5)

© Sealevel Systems, Inc. - 3 - DIO-104.OPTO User Manual
Card Setup
Address Selection
The DIO-104.OPTO occupies 4 consecutive I/O locations. The DIP-switch (S1) is
used to set the base address for these locations. Be careful when selecting the base
address as some selections conflict with existing PC ports. The following table
shows several examples that usually do not cause a conflict. Even though four I/O
addresses are decoded, only the first two are actually used, the other two ports are to
maintain compatibility with existing Sealevel Systems adapters.
Address Binary Switch Settings
A9 A8 A7 A6 A5 A4 A3 A2
1 2 3 4 5 6 7 8
100-103 01 0000 00xx On Off On On On On On On
104-107 01 0000 01xx On Off On On On On On Off
200-203 10 0000 00xx Off On On On On On On On
280-283 10 1000 00xx Off On Off On On On On On
284-287 10 1000 01xx Off On Off On On On On Off
2EC-2EF 10 1110 11xx Off On Off Off Off On Off Off
300-303 11 0000 00xx Off Off On On On On On On
320-323 11 0010 00xx Off Off On On Off On On On
388-38B 11 1000 10xx Off Off Off On On On Off On
3A0-3A3 11 1010 00xx Off Off Off On Off On On On
3A4-3A7 11 1010 01xx Off Off Off On Off On On Off
The following illustration shows the correlation between the DIP-switch setting and
the address bits used to determine the base address. In the example below, address
300 is selected as the base address. Address 300 in binary is XX 11 0000 00XX
where X = a non-selectable address bit.
1 2 3 4 5 6 7
ON
OFF
A9 A2
8
Note: Setting the switch ‘On’ or ‘Closed’ corresponds to a ‘0’ in the address, while
leaving it ‘Off’ or ‘Open’ corresponds to a ‘1’.