Hi
this is my first time I write in a forum. So tell me, if I did something wrong.
I also hope that my english is understandable.
I work with:
- Labview Version 16 (Software)
- NI- cDAQ-9184 with 2 unused mods and the third mod is the NI-9474
My Goal:
I want to output a two channel AB encoder signal. I have to able to change the frequency during the runtime. In addition, the two signals must be synchronized. The frequency range should be from 1Hz to 12kHz.
My current stand:
1. Try:
Write a boolarray on digitaloutput with whileloop and a time delay
=> synchronization -> ok
=> mutable -> ok
=> max stable frequency 10Hz
2. Try:
Make a counter pulse output
=> no synchronization, with the NI-9474 i cant trigger on the output
=> no mutable, i must kill the task and make a new one with a different frequency
=> max stable frequenz 200kHz -> ok
So, now i have a few questions...
Question 1:
How can i make the counter pulse output mutable, without kill the task everytime?
Question 2:
How can i synchronize the two channels?
Question 3:
Is there other way to control the outputs, than the counter puls output and the normal output ?
Question 4:
Is this project even possible?
In the appendix i have my Test-Vi. It's not nice, but practical.
I hope you can help me.
Greetings from Switzerland
Roman
