Hi Eric,
The report viewer doesn’t exist in gateway scripts. Report viewers only exist in clients. So you could leave a client open somewhere and use a client gateway script to do what you are trying to do.
Or you could use a gateway script and get the PLC data and create a CSV or excel file with the data and use that.
Here’s a couple similar forum topics:
viewtopic.php?f=70&t=12151
viewtopic.php?f=70&t=8851
Best,
Nick Mudge
Ignition Consulting
nickmudge.info