How Do I Create a Pulse Train with a FieldPoint CTR Module?
Primary Software: Driver Software>>NI-FieldPoint
Primary Software Version: 4.1
Primary Software Fixed Version: N/A
Secondary Software: N/A
Hardware: FieldPoint>>Discrete I/O Modules>>FP-CTR-500, FieldPoint>>Discrete I/O Modules>>FP-CTR-502
Problem: I am using an FP-CTR-50x module. How can I create a pulse train with this module?
Solution: Follow these steps to set up your FP-CTR module to generate a pulse train:
- Run the FieldPoint Explorer (FieldPoint version 3.0.2 or earlier) or run Measurement and Automation Explorer (FieldPoint version 4.0)
- Right-click on your FP-CTR module and select "Edit this device". This brings up the Device Configuration window.
- Click on the "Channel Confguration" option.
- Now you must define the counter output. Under the "Channels" option change the counter type to "Type 3: Discrete Output".
- Click the check box for the desired output channel.
- In the "Attributes" field select the "Output Source" attribute and change the value to "Counter Channel 0".
- Select the "Output Mode" attribute and change the value to "Toggle, reset off".
- You now must have Counter 0 output the correct frequency. Under "Channels" change the counter type to "Type 1: Count Input".
- Click the check box for "Counter 0".
- Select the count source Attribute and change the value to "1 KHz Reference". For faster pulse trains you can select an external source or the 32 KHz Reference.
- Select the terminal count attribute and set it so that you get the desired frequency. For instance, "100" would divide the 1 KHz Reference by 200 (because you are toggling the output on AND off every 100 counts), resulting in a 5 Hz output.
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Report Date: 06/09/2000
Last Updated: 07/14/2004
Document ID: 1Y8CJ8M6
