34
Appendix A: Changing the Settings
on the
PC2000
Base Address Settings
To change the Base Address settings on the PC2000, find the bank of switches on the A/D converter. The
Base Address may be changed via the first 6 switches (the IRQ may be changed via the last 3 switches).
Switches in the OFF position have the decimal values shown. Switches in the ON position have a value of
zero. The Base Address is the sum of the values of the switches. In the default setting, switches 5 and 6 are
added to give a value of 768. A few of the many combinations for Base Address settings are below. After
you have changed the switches, reinstall the card and change the software settings to match the hardware
settings. (See pages 6-8 for instructions.) The gray block indicates the position of the switch.
= Switch is in the on, upward position
Example: 768 decimal = Hex300 = 0x300 (Default Setting)
Switch #
1
2
3
4
5
6
ON
OFF
Decimal equivalent
16
32
64
128
256
512
Value as shown
256
512
Example: 784 decimal = Hex310 = 0x310
Switch #
1
2
3
4
5
6
ON
OFF
Value as shown
16
256
512
Example: 800 decimal = Hex320 = 0x320
Switch #
1
2
3
4
5
6
ON
OFF
Value as shown
32
256
512
Example: 816 decimal = Hex330 = 0x330
Switch #
1
2
3
4
5
6
ON
OFF
Value as shown
16
32
256
512
