Is there a way to make notes at certain points in the data? For example say I am running a system taking data and want to keep taking data while I make a change to the system to see what effects the change has, can I make an annotation somewhere in the datataker file so when I go back an look at the data the point in the data where the change was made is tagged?

Hi grb,

You may use alarms or eventlog.
This is a pre-defined notes which mean you need to specify the message in your dataTaker code to generate this notes.

Simple example (temperature sensor):
BEGIN
S1=-40,80,0,5 'scaling 0 - 5 V into -40 - 80 degC
RA1S 'schedule A, running every second
1V(=1CV,S1) 'read voltage channel, scale using S1
1CV(DF,=2CV,W) 'detect changes in temperature, save in 2CV, set as working channel
IF(2CV>0)"Temperature Raise" 'if temperature change is positive issue Temperature Raise message
IF(2CV<0)"Temperature Drop" 'if temperature change is positive issue Temperature Raise message
END

Those message will be saved in the alarm records.

Best regards,
Rudy Gunawan