DM5210 analog input module 1-7 RTD Embedded Technologies, Inc.
S1 — Base Address (Factory Setting: 300 hex (768 decimal))
One of the most common causes of failure when you are first trying your module is address contention. Some of
your computer’s I/O space is already occupied by internal I/O and other peripherals. When the 210/5210 attempts to
use I/O address locations already used by another device, contention results and the module does not work.
To avoid this problem, the 210/5210 has an easily accessible DIP switch, S1, which lets you select any one of 32
starting addresses in the computer’s I/O. Should the factory setting of 300 hex (768 decimal) be unsuitable for your
system, you can select a different base address simply by setting the switches to any one of the values listed in Table
1-2. The table shows the switch settings and their corresponding decimal and hexadecimal (in parentheses) values.
Make sure that you verify the order of the switch numbers on the switch (1 through 5) before setting them. When the
switches are pulled forward, they are OPEN, or set to logic 1, as labeled on the DIP switch package. When you set
the base address for your module, record the value in the table inside the back cover. Figure 1-9 shows the DIP
switch set for a base address of 300 hex (768 decimal).
Table 1-2: Base Address Switch Settings, S1
Base Address
Decimal / (Hex)
Switch Setting
5 4 3 2 1
Base Address
Decimal / (Hex)
Switch Setting
5 4 3 2 1
512 / (200)
0 0 0 0 0
768 / (300)
1 0 0 0 0
528 / (210)
0 0 0 0 1
784 / (310)
1 0 0 0 1
544 / (220)
0 0 0 1 0
800 / (320)
1 0 0 1 0
560 / (230)
0 0 0 1 1
816 / (330)
1 0 0 1 1
576 / (240)
0 0 1 0 0
832 / (340)
1 0 1 0 0
592 / (250)
0 0 1 0 1
848 / (350)
1 0 1 0 1
608 / (260)
0 0 1 1 0
864 / (360)
1 0 1 1 0
624 / (270)
0 0 1 1 1
880 / (370)
1 0 1 1 1
640 / (280)
0 1 0 0 0
896 / (380)
1 1 0 0 0
656 / (290)
0 1 0 0 1
912 / (390)
1 1 0 0 1
672 / (2A0)
0 1 0 1 0
928 / (3A0)
1 1 0 1 0
688 / (2B0)
0 1 0 1 1
944 / (3B0)
1 1 0 1 1
704 / (2C0)
0 1 1 0 0
960 / (3C0)
1 1 1 0 0
720 / (2D0)
0 1 1 0 1
976 / (3D0)
1 1 1 0 1
736 / (2E0)
0 1 1 1 0
992 / (3E0)
1 1 1 1 0
752 / (2F0)
0 1 1 1 1
1008 / (3F0)
1 1 1 1 1
0 = closed, 1 = open
Fig. 1-9 — Base Address Switch, S1
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