Hello,
I am trying to create a script that writes the date/time to a tag at that scheduled event. Here's what I have but I keep getting "TypeError: expected a str".
I have tried the destination tagpath as both Date/time and String.
def onScheduledEvent():
rightNow = system.date.now()
nowTag = system.tag.readBlocking(['[default]plant/shift/shiftStartTime)'])
system.tag.writeBlocking(nowTag,rightNow)
You don't need to read the tag to write to it
system.tag.writeBlocking(['[default]plant/shift/shiftStartTime)'],[rightNow])
system.tag.readBlocking() returns a list of QualifiedValues.
system.tag.writeBlocking() takes a list of tagPaths, and a List of values. As @dkhayes117 has shown.
To get the value read from a tag you need to get it from the list, and then refernece the value property of the QualifiedValue.
system.tag.readBlocking(['[default]plant/shift/shiftStartTime'])[0].value
For what you're showing here, you don't actually need to read the tag though.
Unless there is some other logic you are wanting to perform.