National Instruments FP-CTR-500, Руководство по эксплуатации

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FP-CTR-500 and cFP-CTR-500 8 ni.com
Figure 5. Wiring an Output Channel to a Sinking-Input Device
Configuring Count-Input Channels
Channels 0–7 are count-input channels. In FieldPoint software,
you can configure each count-input channel to operate with
attributes and commands. In the Channel Configuration dialog
box, select attributes for each channel from the Attributes menu
and commands from the Commands menu. The following sections
describe the different attributes and commands you can select
when you are configuring the count-input channels. For more
information about using FieldPoint software, refer to the
FieldPoint software help file.
Terminal Count
To set the terminal count, enter a value from 0 to 65,535 in the
Value field. The default value is 65,535. When the count-input
channel exceeds its terminal count, the count resets to 0 and
triggers any outputs associated with it. For more information about
associating outputs with a count-input channel, refer to the
Configuring Output Channels section. The count-input channel
also sends a count trigger to the next count-input channel if that
channel is set to use the previous channel as the count source.
Channel Status
In FieldPoint software, the [c]FP-CTR-500 reports one of the
following statuses:
Successful
or
Overflow since last
read
. The default channel status is
Successful
. If a count-input
channel exceeds the terminal count, the channel resets to 0 and
Load
To next channel
[c]FP-CTR-500
V C
COM
V
OUT
V
SUP
1 A max
Sourcing-
Output
Circuitry
+
–
10–30 VDC
External
Power
Supply
2 A max