Hi,
I am trying to generate a signal with my U3-HV using Profilab 4.
The problem I am now facing is, that the signal is unstable.
The clock should be tHIGH = 100ms and tLOW = 1s.
tHIGH varies from 85ms to 115ms, which makes significant changes in my measurements.
I am using FIO4 as the Output, which is directly measured with a scope.
I attached some screenshots of the program and the signals I measured.
I hope someone can help me.
File Attachment:
.png%3Fitok=PHGBxf6M "EEV Blog Reviews LabJack T7-Pro & Software Tools")
.jpg%3Fitok=B1YcuDFK)
.png%3Fitok=Ybt-OlgU "LabJack + JEDI One Can Create a Powerful Distributed DAQ Ecosystem")
It looks like you are using Profilab software timing for the high/low clock to generate the signal. This timing is not LabJack software or hardware controlled, so we have no suggestion or solution for timing being off by up to 15 ms in Profilab.
Profilab is third party software, so I suggest contacting Abacom or asking on their forum:
https://www.electronic-software-shop.com/