I've got an OPC tag, float data type. I want the tag value to always have at least 3 decimal places. For example, if it's 0.5, I want the value to be 0.500. Is this possible without creating another expression tag with a number format on it?
No, you would not only need another tag, but that 2nd tag would need to be a String datatype.
Formatting like that is a concern at display time, not for in the tag browser.
Thanks for the reply, but I think I got it. I was able to change the format string tag numeric property to ###.000
Ok I think I misunderstood a little, glad that's working for you!