C Series and TestScale Module Signal Connections for Counters
- Updated2024-10-22
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C Series and TestScale Module Signal Connections for Counters
The following tables lists the default input terminals for various counter measurements. You can use a different PFI line for any of the input terminals. To change the PFI input for a measurement, use the NI-DAQmx channel attributes/properties.
For information about counters on CompactRIO Single-Board controllers, refer to the Counter input and Output section in CompactRIO Single-Board Controller Physical Channels.
NI 9401, NI 9421, NI 9422, NI 9423, NI 9436, NI 9437 (8-Channel), and TS-15050 DIO P0
Measurement | Ctr0 | Ctr1 | Ctr2 | Ctr3 |
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Count Edges |
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Pulse Width Measurement | PFI 1 | PFI 5 | PFI 2 | PFI 6 |
Period/Frequency Measurement (Low Frequency with One Counter) | PFI 1 | PFI 5 | PFI 2 | PFI 6 |
Period/Frequency Measurement (High Frequency with Two Counters) | PFI 0 | PFI 4 | PFI 3 | PFI 7 |
Period/Frequency Measurement (Large Range with Two Counters) | PFI 0 | PFI 4 | PFI 3 | PFI 7 |
Semiperiod Measurement | PFI 1 | PFI 5 | PFI 2 | PFI 6 |
Two-Edge Separation Measurement |
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Position Measurement |
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NI 9402 and NI 9435 (4-Channel)
Measurement | Ctr0 | Ctr1 | Ctr2 | Ctr3 |
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Count Edges |
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Pulse Width Measurement | PFI 1 | PFI 2 | PFI 3 | PFI 0 |
Period/Frequency Measurement (Low Frequency with One Counter) | PFI 1 | PFI 2 | PFI 3 | PFI 0 |
Period/Frequency Measurement (High Frequency with Two Counters) | PFI 0 | PFI 3 | PFI 1 | PFI 2 |
Period/Frequency Measurement (Large Range with Two Counters) | PFI 0 | PFI 3 | PFI 1 | PFI 2 |
Semiperiod Measurement | PFI 1 | PFI 2 | PFI 3 | PFI 0 |
Two-Edge Separation Measurement |
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Position Measurement |
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NI 9411 (6-Channel)
Measurement | Ctr0 | Ctr1 | Ctr2 | Ctr3 |
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Count Edges |
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Pulse Width Measurement | PFI 1 | PFI 4 | PFI 0 | PFI 3 |
Period/Frequency Measurement (Low Frequency with One Counter) | PFI 1 | PFI 4 | PFI 0 | PFI 3 |
Period/Frequency Measurement (High Frequency with Two Counters) | PFI 0 | PFI 3 | PFI 2 | PFI 5 |
Period/Frequency Measurement (Large Range with Two Counters) | PFI 0 | PFI 3 | PFI 2 | PFI 5 |
Semiperiod Measurement | PFI 1 | PFI 4 | PFI 0 | PFI 3 |
Two-Edge Separation Measurement |
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Position Measurement |
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The following tables list the output terminals for counter output. You can use a different PFI line for any of the output terminals.
NI 9401, NI 9472, NI 9474, NI 9475, NI 9485 (8-Channel), and TS-15050 DIO P0
Ctr0 | Ctr1 | Ctr2 | Ctr3 | FreqOut |
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PFI 3 | PFI 7 | PFI 1 | PFI 5 | PFI 2 |
NI 9481, NI 9482, and NI 9402 (4-Channel)
Ctr0 | Ctr1 | Ctr2 | Ctr3 | FreqOut |
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PFI 0 | PFI 3 | PFI 1 | PFI 2 | PFI 1 |
NI 9361 (8-Counters)
Measurement | Ctr0 | Ctr1 | Ctr2 | Ctr3 | Ctr4 | Ctr5 | Ctr6 | Ctr7 |
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Count Edges |
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Duty Cycle Measurement | PFI 0 | PFI 1 | PFI 2 | PFI 3 | PFI 4 | PFI 5 | PFI 6 | PFI 7 |
Pulse Width Measurement | PFI 0 | PFI 1 | PFI 2 | PFI 3 | PFI 4 | PFI 5 | PFI 6 | PFI 7 |
Period/Frequency Measurement (Dynamic Averaging) | PFI 0 | PFI 1 | PFI 2 | PFI 3 | PFI 4 | PFI 5 | PFI 6 | PFI 7 |
Position Measurement |
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Velocity |
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In This Section
Related Information
- CompactRIO Single-Board Controller Physical Channels
The sbRIO-9603, 9608, and 9609 controllers do not have onboard physical channels. The sbRIO-9628, 9629, and 9638 controllers have the following onboard IO characteristics.