rtd DM6210, User Manual

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2-4
Fig. 2-1 — CN3 I/O Connector Pin Assignments
External I/O Connections
Figure 2-1 shows the DM6210’s CN3 I/O connector pinout. Refer to this diagram as you make your I/O
connections. Note that the +12 and -12 volt signals are available at pins 47 and 49 only if your computer
supplies these voltages.
Connecting the Analog Inputs
NOTE: It is good practice to connect all unused channels to ground, as shown in the following diagram.
Failure to do so may affect the accuracy of your results.
C onnect the high side of the analog input to one of the analog input channels, AIN1 through AIN16, and
connect the low side to the corresponding dedicated ANALOG GND for the selected channel. Figure 2-2 shows how
these connections are made.
Connecting the Timer/Counters and Digital I/O
For all of these connections, the high side of an external signal source or destination device is connected to the
appropriate signal pin on the I/O connector, and the low side is connected to any DIGITAL GND.
Running the 6210DIAG Diagnostics Program
Now that your module is ready to use, you will want to try it out. An easy-to-use, menu-driven diagnostics
program, 6210DIAG, is included with your example software to help you verify your module’s operation.
You can also use this program to make sure that your current base address setting does not contend with
another device.
39 40
37 38
35 36
33 34
31 32
29 30
27 28
25 26
23 24
21 22
19 20
17 18
15 16
13 14
11 12
9 10
7 8
5 6
3 4
1 2
49 50
47 48
45 46
43 44
41 42
AIN9
AIN10
AIN11
AIN12
AIN13
AIN14
AIN15
AIN16
ANALOG GND
ANALOG GND
ANALOG GND
P1.7
P1.6
P1.5
P1.4
P1.3
P1.2
P1.1
P1.0
T/C OUT 0
T/C OUT 1
T/C OUT 2
EXT GATE 2
+5 VOLTS
DIGITAL GND
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
AIN8
ANALOG GND
EXT GATE 0
ANALOG GND
P0.7
P0.6
P0.5
P0.4
P0.3
P0.2
P0.1
P0.0
EXT CLK 0
EXT GATE 1
EXT CLK 1
EXT CLK 2
+12 VOLTS
-12 VOLTS