Triger source

[kmous]

Hi i am having an error code when i triger my signal .........
"the trigger source is invalid " by default it is APFI0 !!!
I am using NI 9205 device and i read that PFI0 is the one for this device but still does not work !!! any idea ?
thank you

[dansch]

Hi kmous,

I understand that you are having trouble configuring the trigger for your NI 9205 module. What kind of trigger type are you trying to use, analog edge or digital edge? For a digital edge, you would need to use the PFI0 pin, but for analog edge, you would have to specify the first analog input channel in your task as the source. The following text comes from the NI-DAQmx Help (under NI-DAQmx Device Considerations» Analog Triggering» C Series, E Series, M Series, and S Series😞

C Series Valid Sources for the Analog Trigger

Analog Input Channel

The NI 9205 has no APFI 0 or APFI 1 terminal. Analog input tasks using the NI 9205 can trigger off one of the analog input channels being sampled by the NI 9205. When you use an Analog Start Trigger, the trigger channel must be the first channel from the NI 9205 in the channel list, but channels from other C Series devices can come first. When you use an Analog Reference or Pause Trigger, you can use only one channel from the NI 9205 in the channel list, but you can use channels from other C Series devices. You can combine Analog Start, Reference, and Pause Triggers with different configuration settings by using multiple NI 9205 devices. All analog triggers on the same device must share the same configuration settings.

Hope this helps,