Switch And Jumper Settings; Base Address Selection (Sw1) - Advantech PCM-3718 Series User Manual

2.2 Switch and Jumper Settings

Ease-of-use was a primary design goal when we designed the
PCM-3718 Series. This module has one function switch and seven
jumper settings. The following sections tell you how to configure the
module. You may want to refer to the figure on page 5 to easier locate
the jumpers and switches.

2.2.1 Base Address Selection (SW1)

You control PCM-3718's operation by reading or writing data to the PC's
I/O (input/output) port addresses. PCM-3718 requires 16 consecutive
address locations. The switch SW1 sets the module's base (beginning)
address. Valid base addresses range from Hex 000 to Hex 3F0. Other
devices in your system can use some of these addresses.
PCM-3718's base address was set to Hex 300 at the factory. If you need
to adjust it to other address ranges, set SW1 by referring to table 2.1
Table 2.1: Module I/O Addresses (SW1)
Range (hex)
000 - 00F
010 - 01F
200 - 20F
210 - 21F
*300 - 30F
3F0 - 3FF
* = default
Note
Table 2.2: PC bus Address Control
Switch
Line
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Switch position
1 2
Off Off
Off Off
:
On Off
On Off
:
On On
:
On On
Switches 1-6 on SW1 control the PC bus address
1 2
A9 A8
3 4
Off Off
Off Off
Off Off
Off Off
Off Off
On On
3 4
A7 A6
13
5 6
Off Off
Off On
Off Off
Off On
Off Off
On On
5 6
A5 A4
Chapter 2