I have a script where I read the value of a memory array tag. I then manipulate the data in my script. I am finding that the value of the tag is being modified by the script even without using system.tag.write()
I’m using 7.9.9
I have made a really simple script that has this behavior so hopefully you can see what I am talking about. In this case, “inttest” is a memory integer array tag.
test = system.tag.read("inttest").value
test[3] = 7
after running this script. the value of the tag inttest[3] will be 7 even though I never wrote back to the tag. Is this intended behavior?
This behavior is similar to lists in python. where you will need to use copy() to create a new instance of the list to avoid modifying the original. However I can’t seem to do this. If I try to run new_array = copy(test) on the above script, I get the following error: TypeError: ‘module’ object is not callable.
Hopefully this is clear enough.
Thanks