5-8
Testing Your Board
8. Under
Digital I/O Configuration Panel
, configure the output
channels to be tested as shown in Figure 5-6. (Actual output channels
available will vary according to your hardware.)
Figure 5-6. Configuring the digital I/O channels as inputs and outputs
Note:
In Figure 5-6 and subsequent drawings of digital I/O controller
panels, the squares below invalid channels are colored black instead of
dark gray—for clarity when the manual is printed in black and white.
9. In the
Digital Output Panel
under
Channels
, click on an output
channel (channel
0
in this example) as shown in Figure 5-7.
Figure 5-7. Configuring channel 0 for output bit pattern A
10. In the
Digital Output Panel
under
Output Bits
, set the bits of
channel
0
for bit pattern A as shown in Figure 5-7.
11. Measure the voltage between signal ground and each bit of the output
port with a DMM or DVM. Make measurements at the cabled mating
connector of your accessory.
KEITHLEY
Digital I/O Configuration Panel
Channel Configuration
Input
Output
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
KEITHLEY
Digital Output Panel
Channels
0
1
2
3
4
5
6
7
7
6
5
4
3
2
1
0
8
9
10
11
12
13
14
15
Output Bits
55
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