tag.writeSynchronous not reflected immediately?

[JordanCClark]

writeSynchronous can't be used in the foreground. take a look at this thread:

Tag.read after tag.write

Hi, I have a question about system.tag.read and system.tag.write instructions: if I execute a read just after a write on the same tag path, e.g. system.tag.write(tagPath,someValue) newValue=system.tag.read(tagPath).value shall the newValue be the value just written to tagPath by the write instruction? Or is the result not deterministic: it could be the old value, i.e. the value stored in tagPath before the write instruction, as well as the new one, i.e. the one written to the tagPath with the…